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Photoshop CS4 One-on-One: Advanced
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The futility of output levels


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Photoshop CS4 One-on-One: Advanced

with Deke McClelland

Video: The futility of output levels

In this exercise I'm going to introduce you to the Output Levels values that are down here near the bottom of the Adjustments palette. When you are working with the Levels adjustment, they are at the bottom of the Levels dialog box, if you are applying a static modification, and they aren't particularly useful. I have to tell you, when adjusting full color continuous toned photographs. You are not going to use them very often, but I do want you to know that they are, just in case you are curious and you want to keep up with all the options that are available to you. I'm still working inside that Input levels.psd image, and I have made a few tiny modifications here to my input levels, the guy is directly below the Histogram. Output Levels control the destination.
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  1. 22m 32s
    1. Welcome to Photoshop CS4 One-on-One Advanced
      1m 43s
    2. Installing the DekeKeys keyboard shortcuts
      6m 17s
    3. Resetting the function keys on a Mac
      3m 51s
    4. Installing the CS4 color settings
      4m 37s
    5. Setting up the CS4 color settings
      6m 4s
  2. 2h 43m
    1. Highlights, shadows, and midtones
      49s
    2. Low contrast, bad meter
      5m 57s
    3. Auto tone, contrast, and color
      8m 1s
    4. Cache levels and the Histogram palette
      7m 16s
    5. How the auto commands work
      10m 15s
    6. A first look at Levels
      6m 11s
    7. Target colors and clipping
      9m 6s
    8. Modifying input levels
      9m 44s
    9. Adjusting the gamma value
      7m 34s
    10. Previewing clipping
      7m 17s
    11. The futility of output levels
      4m 56s
    12. Channel-by-channel edits
      11m 54s
    13. When levels fail
      4m 34s
    14. A first look at Curves
      8m 46s
    15. Static Curves layer tricks
      7m 45s
    16. Dynamic Curves layer tricks
      7m 25s
    17. Correcting the composite image
      8m 30s
    18. Neutralizing a color cast
      6m 52s
    19. The Target Adjustment tool in Curves
      8m 29s
    20. Correcting an image in Lab
      10m 7s
    21. The Shadows/Highlights filter
      4m 18s
    22. Radius and tonal width
      8m 11s
  3. 1h 48m
    1. Edge-enhancement tricks
      1m 13s
    2. How sharpening works
      3m 48s
    3. The single-shot sharpeners
      4m 29s
    4. The Unsharp Mask filter
      7m 57s
    5. Understanding the Radius value
      6m 25s
    6. Gauging the best settings
      7m 47s
    7. Previewing how sharpening will print
      3m 37s
    8. Measuring and setting screen resolution
      6m 56s
    9. Tweaking the screen resolution
      4m 28s
    10. Sharpening the luminance data
      8m 23s
    11. USM vs. Smart Sharpen
      4m 23s
    12. Smart Sharpen's Remove settings
      5m 50s
    13. High-resolution sharpening
      6m 16s
    14. When to leave More Accurate off
      3m 48s
    15. When to turn More Accurate on
      4m 23s
    16. The advanced options
      7m 57s
    17. Saving Smart Sharpen settings
      4m 23s
    18. Accounting for camera shake
      7m 7s
    19. Sharpening with the High Pass filter
      9m 8s
  4. 2h 16m
    1. Why would you blur?
      1m 8s
    2. Fading after an undo
      3m 27s
    3. The "bell-shaped" Gaussian Blur
      5m 43s
    4. The linear Box Blur
      3m 6s
    5. Add Noise vs. Median
      4m 50s
    6. Despeckle vs. Dust & Scratches
      6m 31s
    7. Smart Blur vs. Surface Blur
      8m 13s
    8. The Motion Blur filter
      4m 33s
    9. Radial Blur's Spin and Zoom variations
      5m 48s
    10. Mixing filtered effects
      3m 56s
    11. The "Captain Kirk in Love" effect
      5m 4s
    12. Diffusing focus with Blur and Overlay
      8m 50s
    13. Simulating Vaseline and film grain
      8m 2s
    14. Filling a layer with a neutral color
      2m 55s
    15. Old-school contrast reduction
      3m 39s
    16. Three steps to diffused focus
      7m 36s
    17. Averaging skin tones
      9m 45s
    18. Addressing the stubborn patches
      5m 26s
    19. Combining Gaussian Blur and Average
      6m 1s
    20. Blurring surface details
      3m 2s
    21. Smoothing blemishes while matching noise
      8m 6s
    22. Reducing digital noise
      8m 47s
    23. Striking a smooth/sharpen compromise
      4m 36s
    24. Smoothing over JPEG artifacts
      7m 38s
  5. 2h 31m
    1. Independent layers of color adjustment
      1m 7s
    2. Undersea color channels
      4m 2s
    3. Inventing a Red channel with Lab
      8m 20s
    4. Mixing color channels
      6m 55s
    5. Making shadows with Levels
      7m 5s
    6. Applying small color adjustments
      6m 0s
    7. Further modifying Levels in Lab
      8m 50s
    8. Creating a dynamic fill layer
      4m 38s
    9. Brushing and blending color
      4m 42s
    10. Working with "found masks"
      7m 31s
    11. Saturation, sharpen, and crop
      8m 9s
    12. Mixing a monochromatic image
      7m 2s
    13. Masking an adjustment layer
      4m 45s
    14. Working with Opacity and blend modes
      3m 39s
    15. Adding a black-and-white adjustment
      5m 53s
    16. The Target Adjustment tool in black and white
      6m 12s
    17. Tinting a monochrome photo
      3m 19s
    18. Introducing Gradient Map
      4m 17s
    19. Adjusting both color and luminance
      5m 44s
    20. Infusing elements with different colors
      6m 22s
    21. Adjustment layers as creative tools
      4m 33s
    22. Inverting and brightening the background
      5m 14s
    23. Blurring live, editable type
      5m 43s
    24. Hue, saturation, and darkness
      6m 51s
    25. Filling type with a color adjustment
      3m 24s
    26. Using one adjustment to modify another
      3m 21s
    27. Breathing color into the title
      3m 38s
    28. The Hue/Saturation humanoid
      3m 44s
  6. 1h 48m
    1. Parametric operations
      1m 23s
    2. The power of blend modes
      6m 16s
    3. Changing the Opacity value
      5m 46s
    4. Opacity vs. Fill Opacity
      4m 37s
    5. Meet the blend modes
      6m 4s
    6. Blend mode shortcuts
      7m 8s
    7. Darken, Multiply, and the Burn modes
      6m 33s
    8. Tempering a Burn effect with Fill
      4m 43s
    9. Saving a blended state
      4m 18s
    10. Lighten, Screen, and the Dodge modes
      8m 22s
    11. Linear Burn = Add minus white
      5m 31s
    12. Overlay and the contrast modes
      6m 52s
    13. Fill Opacity takes priority
      6m 19s
    14. Difference and exclusion
      5m 21s
    15. Using difference for golden highlights
      4m 2s
    16. The composite (HSL) modes
      6m 8s
    17. The brush-only modes: Behind and Clear
      10m 31s
    18. Layer groups and the Pass Through mode
      8m 54s
  7. 1h 53m
    1. It's all about the presentation
      58s
    2. Moving a layer a specific number of pixels
      6m 59s
    3. Adding a pixel mask to a layer
      5m 48s
    4. Editing a layer mask
      7m 19s
    5. Combining layers into a clipping mask
      6m 19s
    6. Introducing the Advanced Blending options
      4m 45s
    7. Using the luminance blending sliders
      7m 26s
    8. Forcing through underlying luminance
      4m 32s
    9. Masking with a path outline
      5m 45s
    10. Refining a mask from the Masks palette
      7m 18s
    11. Creating and modifying a layer group
      3m 29s
    12. Establishing a knockout group
      5m 29s
    13. Fixing last-minute problems
      6m 23s
    14. Introducing layer comps
      6m 40s
    15. Exploring layered states
      6m 43s
    16. Deleting layers and updating comps
      6m 18s
    17. Saving a basic composition
      6m 21s
    18. Assigning and saving appearance attributes
      7m 15s
    19. Layer comps dos and don'ts
      7m 27s
  8. 1h 56m
    1. Type: The great imaging exception
      56s
    2. Establishing default formatting attributes
      4m 5s
    3. Saving formatting attributes as a preset
      8m 5s
    4. Making a point text layer
      6m 18s
    5. Editing size and leading
      6m 44s
    6. Working with vector-based text
      6m 12s
    7. Formatting area text
      4m 16s
    8. Creating a layer of area text
      3m 20s
    9. Resizing the text frame
      4m 34s
    10. Changing the anti-aliasing setting
      3m 58s
    11. Obscure but important formatting options
      6m 31s
    12. Text editing tricks and shortcuts
      8m 44s
    13. Creating a cast shadow
      6m 1s
    14. Blurred shadows and beveled text
      7m 16s
    15. Drawing a path outline
      4m 51s
    16. Creating type on a path
      6m 39s
    17. Flipping text across a circle
      3m 18s
    18. Vertical alignment with baseline shift
      4m 16s
    19. Warping text
      4m 57s
    20. Scaling your text to taste
      3m 33s
    21. Applying a custom warp
      6m 24s
    22. Creating an engraved text effect
      5m 11s
  9. 2h 17m
    1. Bending an image to fit your needs
      53s
    2. Creating a canvas texture
      6m 48s
    3. Masking objects against a white background
      5m 42s
    4. Scaling an image to fit a composition
      8m 9s
    5. Aligning one layer to fit another
      3m 51s
    6. Changing the Image Interpolation
      8m 10s
    7. Merging faces
      5m 32s
    8. Rotating the first clock hand
      7m 17s
    9. Adding hands and pasting styles
      6m 40s
    10. Series duplication in Photoshop
      4m 35s
    11. Masking objects against a black background
      6m 34s
    12. Skews and perspective distortions
      7m 57s
    13. Envelope-style warps
      9m 2s
    14. Old-school distortion filters
      8m 50s
    15. Introducing the Liquify filter
      4m 9s
    16. Reconstructing an image
      6m 55s
    17. Using the Warp tool
      5m 16s
    18. The Pucker and Bloat tools
      5m 53s
    19. Push, Turbulence, and Twirl
      6m 41s
    20. The Freeze and Thaw mask tools
      5m 45s
    21. Saving and loading a mesh file
      3m 59s
    22. Creating and applying a texture layer
      8m 30s
  10. 1h 28m
    1. Effects vs. styles
      1m 11s
    2. Of layer styles and masks
      4m 37s
    3. Everything about drop shadow
      8m 2s
    4. Adding a directional glow
      4m 39s
    5. Colorizing with Color Overlay
      5m 18s
    6. Stroke and fill opacity
      5m 48s
    7. Creating a multicolor Outer Glow
      9m 22s
    8. Introducing Bevel and Emboss
      7m 48s
    9. Contour and Texture
      4m 35s
    10. Simulating liquid reflections
      6m 28s
    11. Saving layer styles
      6m 18s
    12. Applying and appending styles
      4m 36s
    13. Saving and swapping style presets
      3m 16s
    14. The five effect helpers
      3m 47s
    15. Blending the effect before the layer
      5m 1s
    16. Colorizing a signature
      3m 30s
    17. Clipping an effect with a mask
      4m 5s
  11. 1h 50m
    1. Welcome to the digital darkroom
      1m 46s
    2. Opening Camera Raw in the Bridge
      5m 44s
    3. The Camera Raw 5 interface
      4m 39s
    4. Adjusting the white balance
      5m 0s
    5. Finessing and saving changes
      7m 55s
    6. Using the White Balance tool
      2m 43s
    7. Working with the Exposure controls
      7m 34s
    8. Straightening and cropping a raw image
      5m 53s
    9. Applying automatic exposure adjustments
      6m 6s
    10. Exposure warnings
      5m 44s
    11. Clarity, Vibrance, and Saturation
      4m 47s
    12. Using the Graduated Filter tool
      3m 33s
    13. Dodging with the Adjustment brush
      9m 24s
    14. Tone Curve adjustments
      6m 54s
    15. Using the Spot Removal tool
      2m 48s
    16. Removing noise and sharpening detail
      4m 5s
    17. Adjusting HSL values
      4m 18s
    18. Adjusting luminance, color by color
      4m 14s
    19. Black and white and split toning
      5m 16s
    20. Camera Raw tips and tricks
      7m 32s
    21. Correcting JPEG and TIFF images
      4m 42s
  12. 57s
    1. Until next time
      57s

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Photoshop CS4 One-on-One: Advanced
20h 57m Intermediate May 01, 2009

Viewers: in countries Watching now:

Photoshop is one of the world’s most powerful image editors, and it can be daunting to try to use skillfully. Photoshop CS4 One-on-One: Advanced, the second part of the popular and comprehensive series, follows internationally renowned Photoshop guru Deke McClelland as he dives into the workings of Photoshop. He explores such digital-age wonders as the Levels and Curves commands, edge-detection filters, advanced compositing techniques, vector-based text, the Liquify filter, and Camera Raw. Deke also teaches tried-and-true methods for sharpening details, smoothing over wrinkles and imperfections, and enhancing colors without harming the original image. Exercise files accompany the course.

Recommended prerequisite: Photoshop CS4 One-on-One: Fundamentals.

Download Deke's customized keyboard layouts and color settings for Photoshop from the Exercise Files tab.

Topics include:
  • Using blend modes, adjustment layers, and layer styles
  • Organizing a layered composition so it is fluid and editable
  • Creating and editing type in Photoshop
  • Using blur effectively
  • Using adjustment layers to add color
  • Combining layers into a clipping mask
  • Working with Camera Raw
Subjects:
Design Photography
Software:
Photoshop
Author:
Deke McClelland

The futility of output levels

In this exercise I'm going to introduce you to the Output Levels values that are down here near the bottom of the Adjustments palette. When you are working with the Levels adjustment, they are at the bottom of the Levels dialog box, if you are applying a static modification, and they aren't particularly useful. I have to tell you, when adjusting full color continuous toned photographs. You are not going to use them very often, but I do want you to know that they are, just in case you are curious and you want to keep up with all the options that are available to you. I'm still working inside that Input levels.psd image, and I have made a few tiny modifications here to my input levels, the guy is directly below the Histogram. Output Levels control the destination.

So in other words, I'm saying that I'm going to take a Luminance level of 18, and I'm going to map it to 0. So I'm going to make it black, and then anybody darker is going to become black as well. And then I'm going to take a Luminance level of 190, and I'm going to map it to 255 white, and everybody brighter is going to become 255 as well. And then Gamma is doing its own thing here, we are just, in this case with 0.95 value, were slightly darkening the midtones inside the image. And that's a purely relative modification by the way. So let's say we want to map in a brightest value of 18 to something different. Like I want to say, change everything that's 18 or darker to a Luminance level of 80, and that means that this whole range, right here will become a Luminance level of 80, and then everybody in between here and here, will be mapped from 80 to 255 in this case.

But I could also make the whites darker if I wanted to, and what I'm essentially doing is reducing the contrast of the image and dimming it. Your question of course, why in the world would you want to do anything resembling that? Well, it's a real easy question to answer. Really you wouldn't, you are not going to want to do this very often if ever. But here's one scenario that I'll sort of toss out there. You might want to dim the image like so. So you would make the white point 255, but you make the black point something like let's say 129, which is something near medium gray and by lightening the image like this, you could set type over it or create some sort of artsy effect. Now this isn't necessarily the best way to pull off such an effect, but it is 'a' way to do it, if you want to.

Also, you can perform such modification on a channel by channel basis, in case you are looking for some other sort of effects, some sort of colorization effect, and check this out, if I move black and white all the way over to the opposite sides. So in other words I exchange them with each other, so that the first value is 255 and last value is 0, then I invert the image, and you can control exactly the degree of inversion you apply if you want to, and then you could invert specific channels, like you could invert the Red channel independently, of the Green and Blue channels.

And just have a high old time if you want to, or you could say, another way to work, if you know your press isn't quite able to retain in an absolute white like that, and let's say something like 250, you know from just experience with working with your press, that an RGB value of about 250 per channel ends up going to white, and that will allow you to keep your highlights more easily than you could just go ahead and map your colors a little differently here. So you can map your shadows to 3, let's say, and your highlights 2. It would be probably higher than that, probably be more like 253, let's say. By the way I should tell you, I was modifying those values from the keyboard using the up and down arrow keys, so you can change these values across the board using the up and down arrow keys.

When you are working with any of the black or white points, whether input levels or output levels, the up and down arrow keys are going to change the value in increments of 1. If you press Shift along with one of these values, you'll change value by increments of 10, to this Shift+Down arrow and Shift+Up arrow, and then with gamma you are changing hundreds. So up arrow will increase the value by hundredth, down arrow will decrease the value by hundredth, and if you add Shift with up or down arrow, you'll increase the value by a tenth or decrease the value by a tenth. So just good stuff to know. I'm going to go ahead and restore my output levels to 0 and 255, because I want to leave them alone, otherwise I'm happy with this thus far, except for the fact that I really don't like the effect I have come up with, because we still have this incredibly yellowish color cast going on inside this image that I want to correct for.

So far we have only modified contrast. When you are modifying contrast that's all you want to do, you can apply a composite modification to the RGB channel right there, supposedly channel for the RGB composite image, but if you want to adjust for color cast which is something that we need to do, then you need to actually look at the individual channels and apply different modifications to different channels, and that is something that we are going to do in the very next exercise.

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