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247 Converting from RGB to CMYK via Multichannel


From:

Deke's Techniques

with Deke McClelland

Video: 247 Converting from RGB to CMYK via Multichannel

Hey gang, this is Deke McClelland. Welcome to Deke's Techniques. This week, I'll show you an alternate method for converting an RGB image to CMYK, that retains the original luminance data. Because what we're doing is we're turning the red channel into the Cyan channel. And the green channel into the Magenta channel, and the blue channel into the Yellow channel, via a special mode known as Multichannel. Now, just so we're on the same page, I want to make sure that you understand that you only convert to CMYK when you're commercially reproducing an image.
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  1. 46m 55s
    1. 445 Correct in Lab and leave a smooth histogram NEW
      9m 21s
    2. 446 Combining the best of Lab and Camera Raw NEW
      9m 20s
    3. 10h 52m
      1. 377 Two ways to create center guides in Photoshop
        4m 28s
      2. 378 A new way to create center guides in Photoshop CC
        4m 21s
      3. 379 Two ways to create center guides in Illustrator
        3m 25s
      4. 380 Clearing the list of recently used fonts in InDesign
        6m 40s
      5. 381 Two ways to search fonts in InDesign CC
        4m 31s
      6. 382 Drawing flowering vectors in Illustrator
        18m 15s
      7. 383 Stroking the petals to create a lattice effect
        16m 45s
      8. 384 Creating a flowering origami effect
        8m 47s
      9. 385 Painting shapes with transitional gradients
        15m 54s
      10. 386 Correcting the brightness and banding of a printed image
        18m 7s
      11. 387 Further reducing banding with a gradient layer
        11m 43s
      12. 388 Smoothing away noise with the Mean stack mode
        8m 8s
      13. 389 Developing a sweetly romantic tropical island
        9m 28s
      14. 390 Creating a Caribbean blue sea with Photo Filter
        5m 10s
      15. 391 Creating letters chiseled into stone
        8m 15s
      16. 392 Adding a chiseled border
        6m 29s
      17. 393 Assembling MRI slices into a 3D volume
        9m 24s
      18. 394 Assigning multiple strokes to gradient type in Illustrator
        10m 30s
      19. 395 Filling in the gaps between stroked letters
        6m 2s
      20. 396 Fragmenting a photo through ribbed glass
        9m 46s
      21. 397 Applying a displacement map with the Glass filter
        8m 40s
      22. 398 Infusing an image with vivid nightclub colors
        6m 59s
      23. 399 Adding MDNA-inspired bands of color
        9m 38s
      24. 400 Patching badly displaced edges
        4m 46s
      25. 401 Styling type with a pattern of vertical lines
        12m 59s
      26. 402 Reshaping letterforms to match the intervals of a pattern
        11m 34s
      27. 403 Swapping one image for another with smart objects
        7m 57s
      28. 404 Forging a million-dollar stamp in Photoshop
        20m 59s
      29. 405 Masking graphic frames and natural edges
        12m 16s
      30. 406 Matching a real-world paper texture
        12m 16s
      31. 407 Casting multiple drop shadows in Photoshop
        6m 55s
      32. 408 Developing an awesome angelfish in Camera Raw
        9m 32s
      33. 409 Tweaking a fish photo to perfection
        5m 32s
      34. 410 Assigning spot colors to a logo in Photoshop
        14m 19s
      35. 411 Blending spot colors inside a logo
        9m 23s
      36. 412 Exporting spot-color separations from Photoshop
        8m 3s
      37. 413 Exporting spot-color separations from Illustrator
        9m 25s
      38. 414 The latest and greatest 2015 Facebook image specifications
        8m 58s
      39. 415 Creating the perfect Facebook cover photo 2015
        13m 38s
      40. 416 Extending your profile picture into your Facebook cover photo
        12m 2s
      41. 417 Preparing images for your Facebook timeline
        9m 42s
      42. 418 Converting all corner points in a drawing to smooth points
        7m 14s
      43. 419 Adding field blurs to a vector-based illustration
        11m 39s
      44. 420 Great uses for Color and Gradient Overlay
        7m 39s
      45. 421 Easter Island
        7m 19s
      46. 422 Creating a string of pearls in Illustrator
        15m 0s
      47. 423 Drawing a letter to match a dingbat font
        12m 14s
      48. 424 Assembling an interior, vertical panorama
        10m 34s
      49. 425 Developing a dark and stormy photo in Photoshop
        10m 26s
      50. 426 Developing a dark and stormy photo in Lightroom
        11m 20s
      51. 427 Sharpening your dark and stormy photo for print
        8m 45s
      52. 428 Auto-blending multiple depths of field
        8m 16s
      53. 429 Assigning multiple strokes in Photoshop CC 2015
        6m 8s
      54. 430 Combining multiple drop shadows to create faux-3D type
        4m 51s
      55. 431 Combining multiple Color and Gradient Overlay effects
        6m 0s
      56. 432 Removing unwanted perspective from a photo
        15m 6s
      57. 433 Correcting the perspective of a single image element
        8m 57s
      58. 434 Extracting an unmodified photo from a Smart Object
        3m 31s
      59. 435 Extracting a raw photo from a Smart Object
        4m 26s
      60. 436 Orthogonal pattern 1: The boxed towers
        17m 28s
      61. 437 Repeating a tile pattern Brick by Row
        6m 51s
      62. 438 Refining the color scheme of your tile pattern
        10m 15s
      63. 439 Orthogonal pattern 2: Which way is up?
        14m 17s
      64. 440 Upping the number of colors in a dynamic pattern
        11m 42s
      65. 441 Achieving real pointillism with the Pointillize filter
        8m 23s
      66. 442 Adding Emboss to give your painting depth
        1m 48s
      67. 443 Blending multiple motion photos
        13m 44s
      68. 444 Creating a wildly colorful High Pass effect
        7m 1s
    4. 18h 48m
      1. 282 Ringing in the New Year with dynamic effects in Illustrator
        12m 59s
      2. 283 Dynamically transforming fills and strokes
        13m 41s
      3. 284 Tracing an avatar from a photograph in Photoshop
        12m 24s
      4. 285 Drawing a vector-based avatar in Illustrator
        19m 44s
      5. 286 Coloring and shading your avatar
        16m 0s
      6. 287 Exporting an illustration as a universally supported PNG file
        10m 54s
      7. 288 Upsampling a layered composition with great results
        13m 43s
      8. 289 Rebuilding a pattern at a higher resolution
        7m 29s
      9. 290 Painting happy little trees
        13m 46s
      10. 291 Shading and lighting the happy forest
        15m 15s
      11. 292 Enlarging a low-res photograph in Photoshop
        12m 20s
      12. 293 Enlarging a photo by tracing it in Illustrator
        13m 10s
      13. 294 Mastering Exposure in Camera Raw
        11m 40s
      14. 295 Super smooth and unflinchingly sharp
        10m 46s
      15. 296 Deleting an inadvertent photo bomber
        8m 13s
      16. 297 Correcting a distorted panorama
        17m 23s
      17. 298 Rebuilding bad stitching in a panorama
        14m 53s
      18. 299 Nondestructive dodge and burn
        8m 54s
      19. 300 Blending a shadow into any background
        8m 37s
      20. 301 Saving a PNG image with a translucent shadow
        8m 45s
      21. 302 Cleaning up a smart phone photo
        11m 17s
      22. 303 Using Photoshop 1.0
        5m 45s
      23. 304 Creating your own Chinese seal (or chop)
        26m 4s
      24. 305 Simulating hand lettering with art brushes
        20m 8s
      25. 306 Adding texture to your hand stamp
        3m 34s
      26. 307 Creating a black chop on red paper
        5m 55s
      27. 308 Auto-hiding iconic panels in Photoshop
        3m 44s
      28. 309 Creating a custom toolbox in Illustrator CC
        4m 21s
      29. 310 Creating the perfect passport photo
        20m 18s
      30. 311 Retouching your passport photo
        13m 38s
      31. 312 Turning a photo into a giant mural
        13m 11s
      32. 313 Enhancing the reality of your mural
        11m 8s
      33. 314 Creating a 3D bump map
        12m 7s
      34. 315 UV overlay and 3D bump paint
        14m 4s
      35. 316 Using Lens Flare for good (not evil)
        10m 48s
      36. 317 Using the Perspective Crop tool
        9m 29s
      37. 318 Reducing real-world camera shake
        10m 4s
      38. 319 Reducing glare in a photograph
        15m 25s
      39. 320 Restoring repeating details
        13m 43s
      40. 321 Integrating a detail captured with a phone
        9m 6s
      41. 322 Blending two exposures of a single scene
        12m 25s
      42. 323 Masking mountains away from sky
        14m 22s
      43. 324 Creating a photographic caricature in Photoshop
        10m 7s
      44. 325 Exaggerating facial features with Liquify
        12m 48s
      45. 326 Masking a caricature against a new background
        11m 20s
      46. 327 Shading and sharpening a caricature
        10m 6s
      47. 328 Drawing a Möbius strip in Illustrator
        12m 21s
      48. 329 Shading the Möbius strip with gradients
        9m 0s
      49. 330 Adding twisting edges to the Möbius strip
        8m 9s
      50. 331 Creating an impossible Penrose triangle
        10m 37s
      51. 332 Shading the cubes in your Penrose triangle
        8m 15s
      52. 333 Selectively converting a photo to black & white
        7m 53s
      53. 334 Straightening and “uncropping” a photo
        16m 17s
      54. 335 Restoring a missing photograph detail
        11m 26s
      55. 336 Drawing a hand (clenched in a fist)
        11m 44s
      56. 337 Cleaning up a sketch captured with a phone
        6m 17s
      57. 338 Four hands united in brotherhood, solidarity, and teamwork
        12m 24s
      58. 339 Swapping out colors in existing gradients in Illustrator
        4m 37s
      59. 340 Select > Focus Area and the pseudo engraving effect
        12m 26s
      60. 341 Integrating 3D art into a 2D scene in Photoshop
        13m 41s
      61. 342 Creating a 3D shark in Photoshop
        11m 16s
      62. 343 Creating a 3D doughnut in Illustrator
        15m 23s
      63. 344 Creating a golden 3D ring in Illustrator
        10m 21s
      64. 345 Mapping Elven runes (or text) onto a 3D ring
        15m 57s
      65. 346 Hand-drawing custom-made letters in Illustrator
        19m 33s
      66. 347 Drawing letters with curves and holes
        15m 56s
      67. 348 Enhancing your hand-drawn text in Photoshop
        7m 20s
      68. 349 Mixing a low-color photo with Camera Raw
        11m 2s
      69. 350 Mixing a low-color photo with adjustment layers
        10m 7s
      70. 351 Saving your effect as a color lookup table
        5m 31s
      71. 352 Extracting a classic painting from its frame
        11m 35s
      72. 353 Extracting that same painting nondestructively
        7m 59s
      73. 354 Archiving and enhancing a child’s art
        10m 47s
      74. 355 Combining a child’s art with a real classic
        11m 5s
      75. 356 Developing the perfect sunset in Camera Raw
        9m 55s
      76. 357 Lush landscapes: The real green is yellow
        9m 7s
      77. 358 Painting away Camera Raw “Clarity halos”
        17m 7s
      78. 359 Selectively sharpening a stressed photograph
        16m 12s
      79. 360 Transforming yourself into a Dark Elf
        16m 27s
      80. 361 Hand-masking the elf against a vivid background
        15m 35s
      81. 362 Making the Dark Elf that much darker
        15m 29s
      82. 363 Developing a photograph of The Joker
        16m 26s
      83. 364 Carving expression lines into The Joker’s face
        14m 1s
      84. 365 Creating a campaign poster in Illustrator
        15m 3s
      85. 366 Creating a Prohibition (or Universal No) symbol
        7m 13s
      86. 367 Using Photoshop CC’s new Flame Generator
        10m 4s
      87. 368 Creating cool Flame Generator art
        9m 35s
      88. 369 Setting type on fire with the Flame Generator
        8m 13s
      89. 370 Blending synthetic flames with type
        6m 12s
      90. 371 Creating secret-message type in Photoshop
        13m 38s
      91. 372 Animating a continuously morphing message
        10m 59s
      92. 373 Creating a piece of Minecraft-inspired art
        16m 10s
      93. 374 Extruding your Minecraft art into 3D space
        8m 39s
      94. 375 Adding a big-pixel, Minecraft background
        12m 2s
      95. 376 Developing the perfect holiday portrait
        15m 22s
    5. 17h 21m
      1. 185 Creating a custom 2013 calendar in Illustrator
        11m 44s
      2. 186 Adding dates to a calendar using tables
        9m 50s
      3. 187 Branding your calendar with a field of logos
        10m 54s
      4. 188 Crafting an Infinity symbol to match a specific font
        12m 6s
      5. 189 Op art experiment 1a: Inflated checkers
        10m 49s
      6. 190 Op art experiment 1b: Rounded windows
        6m 39s
      7. 191 Building a universal ISOTYPE man with strokes
        15m 6s
      8. 192 Building a universal ISOTYPE woman with strokes
        11m 7s
      9. 193 Drawing an ISOTYPE couple in love
        12m 55s
      10. 194 Creating a Warhol-style silkscreen effect
        14m 43s
      11. 195 Creating a series of Warhol-style variations
        10m 43s
      12. 196 Adding Warhol-style background variations
        8m 20s
      13. 197 Creating opaque colored shadows
        5m 20s
      14. 198 Assembling multiple variations into a single comp
        5m 9s
      15. 199 Creating a pattern of unique inset circles
        9m 55s
      16. 200 Changing a static blended color scheme
        7m 16s
      17. 201 Op art experiment 2a: Undulating pattern
        20m 26s
      18. 202 Op art experiment 2b: Concentric rings
        9m 43s
      19. 203 Developing a dramatic castle in Camera Raw
        13m 21s
      20. 204 Artificially coloring a photo in Camera Raw
        9m 38s
      21. 205 Creating an antique photo effect in Camera Raw
        7m 53s
      22. 206 Adding a weathered old-photo frame effect
        12m 0s
      23. 207 Drawing an Angry Birds-like character
        16m 59s
      24. 208 Stroking an entire layer in Illustrator
        9m 21s
      25. 209 Drawing a classic snarling cartoon face
        11m 10s
      26. 210 Drawing a radiant, cheerful cartoon background
        18m 29s
      27. 211 Stroking any kind of type in Illustrator
        5m 0s
      28. 212 Creating synthetic water droplets
        9m 29s
      29. 213 Simulating liquid reflections with effect
        5m 19s
      30. 214 Simulating liquid refractions with a dmap
        5m 30s
      31. 215 Creating an eye-catching splatter effect
        9m 8s
      32. 216 Defringing purples and greens in Camera Raw 7
        10m 4s
      33. 217 Making a danger sign more dangerous
        15m 9s
      34. 218 Using texture and depth to add realism
        10m 22s
      35. 219 Precisely aligning artwork to the bleed
        7m 16s
      36. 220 Creating and importing a tracing template
        6m 50s
      37. 221 Drawing a distinctive 2D video game character
        18m 52s
      38. 222 Adding features to the face of a 2D character
        14m 3s
      39. 223 Creating a vivid aura around an entire character
        7m 19s
      40. 224 Adding variable-width strokes in Illustrator
        11m 23s
      41. 225 Animating bird wings with Puppet Warp
        12m 15s
      42. 226 Animating text by onion skinning in Photoshop
        8m 0s
      43. 227 Creating an animated movie in Photoshop
        9m 15s
      44. 228 Exporting an animation to QuickTime and GIF
        5m 44s
      45. 229 Correcting an underwater photograph
        10m 30s
      46. 230 Making a photo razor-sharp and porcelain-smooth
        7m 17s
      47. 231 Reducing noise in a high-ISO shot with Camera Raw
        8m 33s
      48. 232 Creating highly reflective sunglasses
        10m 43s
      49. 233 Adding drama to an outdoor portrait shot
        6m 35s
      50. 234 Creating volumetric forms with shape layers
        15m 52s
      51. 235 Creating a bloodshot eye effect
        7m 11s
      52. 236 Shading an image with shapes and layer masks
        13m 2s
      53. 237 Creating fabric textures with pattern layers
        7m 27s
      54. 238 Colorize any layer with Color Overlay
        3m 23s
      55. 239 Turning a portrait into a dot drawing
        7m 40s
      56. 240 Creating a full-color dot drawing
        3m 29s
      57. 241 Drawing an orthogonal cube with the line tool
        7m 9s
      58. 242 Creating a cube of differently colored cubes
        9m 27s
      59. 243 Recreating the Creative Cloud Logo in Illustrator
        16m 21s
      60. 244 Creating a psychedelic fabric texture
        9m 7s
      61. 245 Turning psychedelic fabric into rock letters
        5m 23s
      62. 246 Creating a more finely rendered dot drawing
        8m 29s
      63. 247 Converting from RGB to CMYK via Multichannel
        12m 31s
      64. 248 Creating printer-safe CMYK shadows
        6m 48s
      65. 249 Creating bright, golden motion trails
        12m 32s
      66. 250 Creating schematic art with grid
        12m 41s
      67. 251 Drawing precisely aligned arrowhead
        12m 8s
      68. 252 Adding arrowheads around a closed path
        6m 1s
      69. 253 Drawing the Pen tool without touching the Pen tool
        17m 13s
      70. 254 Merging frames for the best possible UAV photo
        16m 40s
      71. 255 Retouching details in an aerial landscape
        12m 13s
      72. 256 Editing a video and adding transitions in Photoshop
        10m 57s
      73. 257 Importing the quadcopter crash sequences
        9m 4s
      74. 258 Color correcting a video and adding a soundtrack
        8m 56s
      75. 259 Adding precisely timed titles to your video
        11m 43s
      76. 260 Hand-painting an image with a Wacom Cintiq
        13m 11s
      77. 261 Blending the final false-color artwork
        8m 41s
      78. 262 Creating a honeycomb pattern in Illustrator
        12m 50s
      79. 263 Building up strokes to create 3D honeycomb
        9m 8s
      80. 264 Turning yourself into a zombie
        14m 0s
      81. 265 Enhancing an ambience environment for the undead
        9m 26s
      82. 266 Creating dripping, gooey ghost letters
        16m 43s
      83. 267 Turning type into gooey green slime
        11m 19s
      84. 268 Creating heavy metal type (updated for Photoshop CS6 and CC)
        12m 27s
      85. 269 Cleaning up a crummy product shot
        11m 3s
      86. 270 Scaling and rotating photographic objects
        10m 10s
      87. 271 Tracing a line drawing with uniform strokes
        11m 18s
      88. 272 Coloring line art using Live Paint Bucket
        18m 22s
      89. 273 Creating a pigture using shapes and letters
        18m 7s
      90. 274 Integrating a cartoon into a photograph
        7m 27s
      91. 275 Converting a photo into a Lichtenstein drawing
        16m 8s
      92. 276 Adding bring Ben-Day dots and a talk balloon
        15m 31s
      93. 277 Painting an eye using a custom brush
        11m 31s
      94. 278 Painting and smoothing straight-sided brushstrokes
        12m 0s
      95. 279 Simulating pressure with path outlines
        6m 3s
      96. 280 Developing a 32-bit HDR image in Camera Raw
        14m 42s
      97. 281 Converting from 32-bit to the more flexible 8-bit mode
        11m 15s
    6. 14h 31m
      1. 091 Removing people from a photo
        10m 44s
      2. 092 Masking people back into a photo
        10m 58s
      3. 093 Hand-painting a mask
        10m 5s
      4. 094 Masking a real-life shadow
        10m 40s
      5. 095 Turning a photo into line art
        7m 44s
      6. 096 Adding a crosshatch shading pattern
        6m 46s
      7. 097 Creating type that inverts anything behind it
        5m 32s
      8. 098 Creating auto-inverting line art
        5m 7s
      9. 099 Creating movie poster credits
        8m 10s
      10. 100 Creating a dual-focus hybrid image
        6m 24s
      11. 101 Adding text to a hybrid composition
        7m 24s
      12. 102 Drawing with the reshape tool
        10m 39s
      13. 103 Hand-drawing a really great letter
        10m 6s
      14. 104 Creating a vanity frame
        5m 28s
      15. 105 Adding a frame to a photograph
        5m 3s
      16. 106 Drawing a highly graphic explosion with Illustrator
        10m 3s
      17. 107 Drawing a Ninja Turtle nose
        10m 22s
      18. 108 Mapping a dog face onto a duck
        8m 20s
      19. 109 Putting a tongue on a duck
        7m 6s
      20. 110 Making synthetic lightning in Photoshop
        11m 3s
      21. 111 Creating a driving rain effect in Photoshop
        4m 57s
      22. 112 Designing a railroad track
        12m 18s
      23. 113 Bending the railroad track around curves
        7m 46s
      24. 114 Creating a Star Wars hologram effect
        9m 23s
      25. 115 Creating leafy letters
        6m 12s
      26. 116 Creating topiary type
        6m 22s
      27. 117 Creating type in grass
        9m 0s
      28. 118 Rendering type in smoke
        7m 30s
      29. 119 Rendering type in brushed metal
        9m 58s
      30. 120 Adding brushed copper effect
        4m 14s
      31. 121 Reflecting type in water
        10m 57s
      32. 122 Reflecting water back into type
        11m 14s
      33. 123 Joining type to a circle
        7m 14s
      34. 124 Making flared type on a circle
        7m 17s
      35. 125 Making a person emerge from water
        5m 32s
      36. 126 Creating progressive water ripples
        10m 17s
      37. 127 Creating an upside-down face effect
        10m 17s
      38. 128 Achieving silky smooth skin with retouching
        6m 33s
      39. 129 Pearly white teeth
        7m 28s
      40. 130 Head-shrinking
        8m 26s
      41. 131 Getting a big head
        5m 11s
      42. 132 Adding a photographic texture to vector type
        4m 28s
      43. 133 Adding strokes in back of photo type
        5m 9s
      44. 134 Adding a border to an image in Illustrator
        4m 17s
      45. 135 Two ways to crop in Illustrator
        7m 29s
      46. 136 Inventing a 3D temple with a depth map
        10m 0s
      47. 137 Drawing a 3D object with Curves
        11m 41s
      48. 138 Creating a superhero shield in Illustrator
        16m 28s
      49. 139 Turning Illustrator paths into Photoshop shapes
        11m 43s
      50. 140 Creating a photorealistic superhero shield
        12m 39s
      51. 141 Pimping your ride in Photoshop
        9m 59s
      52. 142 Masking and blackening a car
        10m 20s
      53. 143 Drawing a multi-part vector mask
        12m 46s
      54. 144 Masking and painting a shadow
        8m 26s
      55. 145 Integrating blades of grass into tires
        5m 34s
      56. 146 Making a (ridiculously) dramatic sky
        6m 2s
      57. 147 Adding flame stripes to a car
        8m 23s
      58. 148 Creating interlocking octagons in Illustrator
        7m 44s
      59. 149 Hand-coloring line art
        13m 9s
      60. 150 Creating a custom wave pattern
        9m 56s
      61. 151 Simulating a screen print
        8m 30s
      62. 152 Drawing a perfect linear spiral in Illustrator
        9m 42s
      63. 153 Drawing a spiraling nautilus shell
        11m 4s
      64. 154 Designing a hex pattern in Illustrator CS6
        11m 10s
      65. 155 Making a hex pattern in Illustrator CS5 and earlier
        7m 4s
      66. 156 Creating a Facebook cover in Photoshop
        9m 25s
      67. 157 Matching a profile picture to your cover
        6m 37s
      68. 158 Cloning yourself in Photoshop
        11m 16s
      69. 159 Lighting the clone party
        8m 29s
      70. 160 Hand-carving letters into wood
        8m 0s
      71. 161 Creating a Spirograph-like pattern
        7m 34s
      72. 162 Tracing scalloped gear teeth around a circle
        4m 55s
      73. 163 Applying custom carve and shadow styles to type
        8m 50s
      74. 164 Turning a pencil sketch into digital ink
        12m 55s
      75. 165 Adding a graph-paper background
        13m 42s
      76. 166 Creating a continuous single-line Spirograph
        13m 2s
      77. 167 Scaling circles into complex patterns
        7m 15s
      78. 168 Creating a money-like design
        8m 43s
      79. 169 Attack of the killer pumpkin
        14m 49s
      80. 170 Simulating a glowing Jack-o-lantern
        12m 24s
      81. 171 The headless stranger in the mist
        12m 25s
      82. 172 Creating 3D punched letters
        13m 29s
      83. 173 Designing a double-wave line pattern
        11m 2s
      84. 174 Assembling a seamless pattern brush
        9m 53s
      85. 175 Creating a hand turkey in Photoshop
        18m 42s
      86. 176 Creating a depth-of-field cast shadow
        7m 29s
      87. 177 Creating a lustrous round jewel
        13m 56s
      88. 178 Cutting and brushing light on a gem
        8m 30s
      89. 179 Creating a shiny button with inset text
        11m 5s
      90. 180 Creating a jaunty six-sided star
        15m 1s
      91. 181 Interweaving star shapes and adding gradients
        8m 28s
      92. 182 Casting shadows between interwoven shapes
        9m 12s
      93. 183 Creating a Hobbit-like text effect
        15m 6s
      94. 184 Enhancing a landscape photo in Camera Raw 7
        9m 16s
    7. 13h 11m
      1. 001 Creating ice type
        8m 39s
      2. 002 Branding type on a texture
        7m 6s
      3. 003 Creating an image-branding machine
        7m 13s
      4. 004 Capturing effects with layer comps
        7m 35s
      5. 005 Rendering type in gold
        8m 9s
      6. 006 Creating a hammered metal background
        5m 48s
      7. 007 Creating heavy metal type
        8m 13s
      8. 008 Creating a molten letter effect
        6m 43s
      9. 009 Setting type on fire
        11m 20s
      10. 010 Using an anti-edge mask
        7m 20s
      11. 011 Blending textures onto a face
        9m 28s
      12. 012 Rendering a face as a cave painting
        7m 34s
      13. 013 Creating a reflection in shattered glass
        8m 32s
      14. 014 Creating a face in a tree
        11m 20s
      15. 015 Building a synthetic star field
        8m 21s
      16. 016 Making 3D type with Repoussé
        10m 14s
      17. 017 Casting 3D shadows and reflections
        9m 35s
      18. 018 Adjusting 3D light sources
        10m 51s
      19. 019 Masking highlights and shadows
        6m 27s
      20. 020 Masking glass
        10m 39s
      21. 021 High key high contrast
        8m 33s
      22. 022 Simulating sub-pixel rendering
        10m 58s
      23. 023 Fixing chromatic aberrations in Photoshop
        9m 41s
      24. 024 Fixing chromatic aberrations in Camera Raw
        8m 51s
      25. 025 Correcting red-eye like a pro
        11m 56s
      26. 026 Turning a photo into an ink drawing
        10m 42s
      27. 027 Turning a photo into a pencil sketch
        8m 43s
      28. 028 Creating a seamlessly repeating pattern
        10m 56s
      29. 029 Repairing seams in a repeating pattern
        10m 47s
      30. 030 Creating a 3D pie chart
        11m 9s
      31. 031 Splitting and modifying 3D meshes
        11m 52s
      32. 032 Using the Ground Plane Shadow Catcher
        6m 58s
      33. 033 Creating a talk show-style curtain
        7m 57s
      34. 034 Assembling a flawless panorama
        10m 5s
      35. 035 Removing people with image stacks
        11m 44s
      36. 036 Creative stacking with Maximum and Range
        11m 44s
      37. 037 Creating synthetic wood grain
        9m 23s
      38. 038 Making slats of uniquely textured wood
        10m 52s
      39. 039 Kerning within a single character
        10m 31s
      40. 040 Creating a raised bevel effect
        11m 49s
      41. 041 Putting wings on a horse
        10m 41s
      42. 042 Creating a classic heart in Illustrator
        7m 15s
      43. 043 Glossing up a heart in Photoshop
        8m 42s
      44. 044 Shooting and assembling a stereoscopic photo
        8m 15s
      45. 045 Extending 3D beyond the screen plane
        6m 13s
      46. 046 Adding stereo 3D text and shapes
        9m 9s
      47. 047 Tilting text and shapes toward the viewer
        8m 13s
      48. 048 Creating a shooting star in Illustrator
        6m 33s
      49. 049 Using blends to draw path outlines
        8m 8s
      50. 050 Inventing custom starbursts
        7m 33s
      51. 051 Making a fictional creature
        12m 5s
      52. 052 Transforming a creature into a monster
        6m 14s
      53. 053 Capturing a monster in motion
        11m 45s
      54. 054 Changing the color of a car
        7m 12s
      55. 055 Painting a colorful car black
        8m 16s
      56. 056 Coloring the stripes on a zebra
        10m 47s
      57. 057 Drawing trendy swirls in Illustrator
        10m 59s
      58. 058 Creating variable-width and brushed swirls
        10m 46s
      59. 059 Drawing trendy ornaments in Illustrator
        8m 49s
      60. 060 Designing a magically updating pattern
        8m 40s
      61. 061 Automatically collapsing a selection
        7m 43s
      62. 062 Adding a magnifying glass into a design
        7m 5s
      63. 063 Healing one eye onto another
        7m 15s
      64. 064 Creating a giant command key
        9m 15s
      65. 065 Drawing common symbols part 1
        6m 29s
      66. 066 Drawing common symbols part 2
        9m 26s
      67. 067 Filtering images with Camera Raw
        7m 52s
      68. 068 Creating a vivid HDR effect
        5m 29s
      69. 069 Creating an ambigram in Illustrator
        10m 45s
      70. 070 Making a two-word ambigram
        7m 47s
      71. 071 Drawing a Halloween scareflake
        10m 45s
      72. 072 Creating true clones in Illustrator
        11m 7s
      73. 073 Taking your scareflakes into Photoshop
        7m 20s
      74. 074 Making a faux HDR image in Lab
        8m 38s
      75. 075 Turning a guy into a zombie
        7m 3s
      76. 076 Miniaturizing the world in Photoshop
        6m 45s
      77. 077 Creating a synthetic rainbow
        8m 53s
      78. 078 Casting an artificial shadow from a layer
        7m 3s
      79. 079 Rendering a portrait in type
        8m 58s
      80. 080 Rendering a portrait in tile patterns
        7m 43s
      81. 081 Rotating a pattern layer in Photoshop
        4m 16s
      82. 082 Tracing an image with path outlines
        7m 50s
      83. 083 Turning path outlines into a vector mask
        6m 0s
      84. 084 Drawing rays of light in Photoshop
        5m 40s
      85. 085 Drawing concentric glow rings
        7m 24s
      86. 086 Designing an Indiana Jones-style logo
        8m 50s
      87. 087 Achieving mitered corners in Photoshop
        5m 43s
      88. 088 Masking with Blunt Instruments in Photoshop
        11m 8s
      89. 089 Creating a stained-glass ornament
        8m 26s
      90. 090 Designing a stained-glass window
        10m 23s

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Watch the Online Video Course Deke's Techniques
75h 58m Intermediate Jan 11, 2011 Updated Aug 25, 2015

Viewers: in countries Watching now:

This course is a collection of short Photoshop and Illustrator projects and creative effects that can be completed in ten minutes or less. The series is taught by computer graphics guru Deke McClelland, and presented in his signature step-by-step style. The intent is to reveal how various Photoshop and Illustrator features can be combined and leveraged in real-world examples so that they can be applied to creative projects right away.

Subject:
Design
Software:
Illustrator Photoshop
Author:
Deke McClelland

247 Converting from RGB to CMYK via Multichannel

Hey gang, this is Deke McClelland. Welcome to Deke's Techniques. This week, I'll show you an alternate method for converting an RGB image to CMYK, that retains the original luminance data. Because what we're doing is we're turning the red channel into the Cyan channel. And the green channel into the Magenta channel, and the blue channel into the Yellow channel, via a special mode known as Multichannel. Now, just so we're on the same page, I want to make sure that you understand that you only convert to CMYK when you're commercially reproducing an image.

That is, you're sending it out to a commercial print house. If you're printing it locally, to your ink jet or laser printer in your home or office, then you leave it in RGB, because those print drivers expect RGB images. If you convert to CMYK you'll just mess things up. So, with that in mind, assuming that we're all commercially reproducing our images. Here's an alternate method, for converting an RGB image to CMYK that retains the original luminance data. We're going to start things off inside this vividly colored RGB image. And I'll show you what happens when you perform a standard CMYK conversion. Converting the CMYK is the single most destructive modification you can make to an image inside Photoshop.

And that's because the color spaces are just entirely different. So rather than convert your original image, in which case you run the risk of saving over it which would be a crying shame. You want to go on to the Image menu and choose the Duplicate command, and then let's just go ahead and call this guy Standard CMYK, because that's where it will be. And I'll click OK, in order to create this duplicate file. Then we want to go up to the Edit menu and choose the Color Settings command which also has a keyboard shortcut of Ctrl+Shift+K or Cmd+Shift+K on the Mac. And inside this dialog box here, assuming that you're working in the States, change the settings from North America General Purpose 2, to North America Prepress 2. If you're working in another country with a localized version of Photoshop, then select something equivalent.

But what we need is for the RGB space to be Adobe RGB 1998 and for CMYK to be some default. In the states, it's U.S Web Coated SWOP v2, which is just fine. Then turn off these pesky checkboxes down here, they'll cause you no end of grief if you leave them on. All three of them need to be off, and then click OK. Now you want to go on to the Image menu, choose Mode and choose CMYK Color. And if you're working along with me, you'll get two warnings. First of all Photoshop will ask you if you want to Flatten the Image, that is get rid of the independent layers.

Which you have to do if your image contains Adjustment Layers, because otherwise it won't function properly. So if you have Adjustment Layers, before you choose the CMYK command you want to go ahead and merge them into the Pixel Base Layers. In my case, I don't have any specialty layers that are going to cause me problems so I'll go ahead and click on the Don't Flatten button. Next Photoshop will tell you that there's another way to work. If you want to convert to a specific CMYK space, then you want Choose the Convert to Profile command from the Edit menu. In our case, that's not an issue so just go ahead and Click OK. And did you see what just happened? I'll go ahead and press Ctrl+Z or Cmd+Z on a Mac.

Keep an eye on the contents of the image window, this is the original RGB image, bright, vibrant, stunning. I'll go ahead and press Ctrl Z or Cmd Z, again, to switch back to the CMYK version of the image, which is much dimmer and sort of murkier. And definitely not as vivid throughout. And, most troubling, these color swatches are totally messed up. I'll show you what I mean. I'll go ahead and switch back to the bright vibrant RGB image. And I'll select the Eyedropper Tool, which you can get by pressing the eye key and then bring up your Color panel.

And make sure that your RGB sliders are visible. And now let's go ahead and click in these bottom swatches, because they're the most indicative. If I click on the last one here, the Magenta swatch, notice that this is true RGB Magenta. That is the red and the blue values are maxed out to 255. The green value set to just 0, so there's no green in there whatsoever, because after all green and Magenta are complimentary colors. So you don't want any green in your Magenta. Now go ahead and click on this violet one right there and you can see that we've got half red, so 128 r, no green whatsoever and blue is maxed out to 255.

And that's about the brightest violet you're going to get. Now click on the blue splotch and you can see that's pure blue. No red, no green, just 255 blue, that's it. And then, finally I'll click on Cyan and you'll note that we've got R0 and green and blue both maxed out to 255. Compare that to what happened to the CMYK conversion. I'll go ahead and click on it. We need to switch from the RGB sliders to the CMYK sliders. And now I'll click inside the Magenta swatch. The Magenta value should be cranked up to 100%. Because that CMYK Magenta for you. But instead, we've only got 80% Magenta, and we've got 11% Cyan. If I click inside the violet swatch, we've just got a mess. We should have a much higher Magenta value.

Now click inside blue and that should be 100% Cyan plus 100% Magenta, it's not so we have a low saturation blue instead. And then finally Cyan that should just be Cyan ink, right? But if I click inside it, you can see that that's not what we have. We have 87% Cyan so pretty high, but then we've got 20% Yellow, where'd that come from? What we want, I'll go ahead and switch to the final version of the file that we'll be creating, is these colors right here, which are as saturated as they get. If I click in Magenta, sure enough its a 100% Magenta nothing else in there.

If I click on the purple swatch its a 100% Magenta plus 50% Cyan precise values that work here. If I'll click inside blue sure enough I've got a 100% Cyan plus a 100&% Magenta without anything else and if I click inside Cyan just a 100% ink. No other impurities whatsoever, with magenty Yellow and Black values are concerned. The thing to bear in mind is, that we will see different colors. So this is the original RGB image and this is the final version of the image that will we creating, using the Multichannel approach.

So you are getting a different effect, but that's inevitable in the world of CMYK. In any case how we go about getting this? Well, you want to switch back to your RGB colors image, you need to have a CMYK version of the image handy by the way, so to make sure you've got it. Then switch back to the RGB image, go back to the Image menu and chose Duplicate once again. And I'll call this guy, Multichannel Approach, let's say, and then, I'll click Okay. Go ahead and Zoom In. I'll go about to the image menu choose mode and choose Multichannel. Now Multichannels (UNKNOWN) mode, they just basically breaks the channels up from each other.

Now let me Escape out for a moment and switch from the Layers panel to the Channels panel. So you can see, that we've got this RGB image and then we've got the red, green and blue channels. And then we've got an extra alpha channel as well. Well, we don't need the Alpha channel, so you can go ahead and grab that guy and throw it away. In fact, you need to do so. Then, return to the Image menu, choose Mode and choose Multichannel. And what this is going to do is just split up the channels into a document that does not have a composite image. So, we won't see an RGB image any more. We'll just see independent channels and they'll get new names.

Also notice this alert message, Flatten layers. There is no don't flatten, it's just OK or Cancel. So if you want to move forward you have to flatten your image. Click OK to do so and you'll end up with this thing that doesn't look the least bit right. And not only that, we've got a Cyan channel, we've got a Magenta channel and a Yellow. But they're the exact same channels we had a moment ago. So the red channel just became its complement Cyan, and the green channel became it's compliment Magenta. And, the blue channel became its complement, Yellow. Next, what you want to do, is add a new channel by clicking on this little page icon at the bottom of the Channels panel.

That will create a new alpha channel filled with Black. It needs, however, to be filed with white, so just go ahead and press the D key to establish the default colors. White is now the foreground color, because we're working inside an alpha channel. So press Alt+Backspace or Option+Delete on a Mac in order to fill that channel with white. Now the reason we just created this channel is because it's going to serve as our Black channel. So we've got Cyan, Magenta, Yellow, and this channel Alpha 1 that will become Black. As soon as you go up to the image menu, choose Mode and choose CMYK Color.

And you're going to get that alert message about how you can specify space using the Convert to Profile command. Just go ahead and click OK, and you'll end up with this effect right there. Now, might not be everything you hoped it would be. However, let's start with the good news. Even though it looks pretty washed out, we've got great color swatches. Check it out. If I click in the Magenta swatch, it's 100% Magenta, and the CYK values are all zero. And if I click inside Cyan the other values are zero, so no color impurities whatsoever.

I'm not going to go through the other swatches, but believe me it's the same story. If I click inside Yellow, 100% Yellow. If I click inside Red, we've got 100% Magenta plus 100% Yellow. Everything's exactly the way it ought to be. The problem is the image is washed out, we want it to look like this. And so, here's what you do. I'll go ahead and switch back to the standard CMYK conversion, because now we need it in order to retrieve the contents of that Black channel. So go ahead and click on the Black channel here inside the Channels panel, and then press Ctrl+A in order to select the entire image.

And I'll zoom out a little bit so you can go ahead and see the marquee around the entire image here. And then go up to Edit menu and choose Copy Merged, or you can press Ctrl+Shift+C, Cmd+Shift+C on the Mac, in order to copy the contents of that channel across all of the layers. Now switch to your Multichannel image in progress. Click on its Black channel, and just press Ctrl+V, or Cmd+V on the Mac, which is the standard keyboard shortcut for the pace command. And then return to the CMYK composite, and you can see that's made a big difference.

So this is without that Black channel. This is the image with that channel. Notice it doesn't harm any of the color swatches at all. You may want to increase the saturation of color all the way around, because the original RGB image is highly saturated. And to do that, go to the Layers panel and drop down to the little black white circle icon at the bottom of the panel, click on it. And notice that the vibrance command is dimmed, it doesn't work in CMYK. So instead we'll use the standard Hue Saturation command.

This is going to sound a radical to but you can total get a way with it. Go ahead and take that saturation value and crank it all way to a 100%. Now it may look like we've got a few problems here, a few harsh transitions, and to get rid of those. Just go ahead and return to the Layers panel, and change the Blend mode from Normal to Color. And notice now that those colors will drop back into place, and now you can make a decision about whether you want to reduce the saturation value. In which case you double click on the layer thumbnail here, and take that value down to 80% for example. And then, hide the Properties panel, and we end up with this effect here. Now, granted, it is not, in any way, shape, or form identical to the original RGB image.

We're just not going to get these colors in a CMYK space. But it is a very interesting effect, as you can see here. That we're able to achieve by converting the image from RGB to CMYK via the Multichannel mode. Alright, so what I just got done showing you is very interesting, but it's also exceedingly dangerous. And that's because we've got way too much ink in the shadows. We've got tons of Cyan, Magenta, Yellow and Black mixing together.

We're violating the printer's total ink limit, which means those shadows are going to smear on the page. Which is why, if you're a member of the lynda.com Online Training Library, I have a follow up movie in which I show you how to take those shadows and tone them down to make them printer safe. If you're waiting for next week's free movie, I'll show you how to take these jumping silhouettes a nd add these bright golden motion trails, or whatever they are. Deke's Techniques, each and every week. Keep watching.

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