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Photoshop CS5 One-on-One: Fundamentals
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Upsampling versus "real" pixels


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Photoshop CS5 One-on-One: Fundamentals

with Deke McClelland

Video: Upsampling versus "real" pixels

All right gang, we've chosen the image Size command, we've turned on Resample image, we've set the Interpolation of Bicubic and we've set the Resolution value to 600 pixels per inch, thereby ensuring that we will increase the size of the image to 36 times its former size. So now what I'm going to do is click the OK button in order to scale that image and now we are seeing the new pixels at the 100% zoom ratio, but I'm not sure where we are inside the image, so I'm going to press and hold the H key in order to take advantage of that bird's eye function.
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  1. 39m 52s
    1. Welcome to Photoshop CS5 One-on-One
      1m 49s
    2. Making Photoshop your default image editor
      7m 43s
    3. Installing the DekeKeys keyboard shortcuts
      8m 10s
    4. Remapping Mac OS shortcuts
      7m 37s
    5. Installing the Best Workflow color settings
      4m 31s
    6. The color settings explained
      6m 54s
    7. Loading the CS5 color settings in Bridge
      3m 8s
  2. 53m 36s
    1. There is nothing you can't do
      2m 1s
    2. The power of Photoshop
      4m 43s
    3. Duplicating a layer
      4m 49s
    4. Liquifying an image
      4m 43s
    5. Adding a layer mask
      5m 54s
    6. Loading an alpha channel
      7m 42s
    7. Selecting with Color Range
      4m 10s
    8. Making a Hue/Saturation layer
      2m 53s
    9. Luminance blending
      7m 21s
    10. Mask density
      5m 9s
    11. Making a knockout layer
      4m 11s
  3. 51m 23s
    1. The best way to work
      41s
    2. Setting General preferences
      5m 33s
    3. Changing the pasteboard color
      5m 41s
    4. File handling, performance, and units
      7m 25s
    5. Touring the Photoshop interface
      11m 5s
    6. Creating and saving a workspace
      7m 21s
    7. Changing settings and updating the workspace
      6m 4s
    8. Resetting the preferences
      7m 33s
  4. 2h 46m
    1. The amazing Adobe Bridge
      1m 17s
    2. Making a new image
      5m 11s
    3. Opening an image
      7m 7s
    4. Opening and closing multiple images
      5m 24s
    5. Opening a problem image
      4m 23s
    6. Adding file information
      8m 37s
    7. Introducing Adobe Bridge
      7m 37s
    8. A whirlwind tour of Bridge
      7m 21s
    9. Adjusting the interface and thumbnails
      8m 18s
    10. Using the full-screen preview
      8m 5s
    11. Rotating images on their sides
      5m 38s
    12. Assigning star ratings and labels
      8m 40s
    13. Filtering thumbnails in the Contents panel
      9m 13s
    14. Moving, copying, and deleting files
      6m 34s
    15. Creating and assigning keywords
      6m 38s
    16. Searches and collections
      7m 3s
    17. Batch-exporting JPEG files
      8m 57s
    18. Batch-renaming
      7m 15s
    19. String substitution and regular expressions
      8m 50s
    20. Grouping images into stacks
      7m 21s
    21. Comparing images in Review mode
      5m 58s
    22. Playing images in a slideshow
      4m 49s
    23. Customizing and saving the workspace
      7m 17s
    24. Using Mini Bridge in Photoshop CS5
      8m 36s
  5. 1h 1m
    1. Learning to swim inside an image
      37s
    2. The tabbed-window interface
      5m 19s
    3. Arranging image windows
      4m 26s
    4. Common ways to zoom
      5m 31s
    5. New zoom tricks in Photoshop CS5
      4m 24s
    6. Hidden old-school zoom tricks
      4m 34s
    7. Scrolling and panning images
      4m 8s
    8. Viewing the image at print size
      6m 42s
    9. The Navigator and "bird's-eye" scrolling
      2m 56s
    10. Nudging the screen from the keyboard
      2m 39s
    11. Scroll wheel tricks
      3m 41s
    12. The Rotate View tool
      3m 36s
    13. Cycling between screen modes
      6m 17s
    14. Using the numerical zoom value
      6m 14s
  6. 1h 6m
    1. Imaging fundamentals
      58s
    2. What is image size?
      7m 45s
    3. The Image Size command
      6m 0s
    4. Selecting an interpolation option
      4m 56s
    5. Upsampling versus "real" pixels
      5m 22s
    6. The penalty of pixels
      5m 35s
    7. Print size and resolution
      7m 26s
    8. Downsampling for print
      6m 39s
    9. Downsampling for email
      7m 28s
    10. Options for upsampling
      8m 13s
    11. Better ways to make a big image
      6m 1s
  7. 44m 43s
    1. Frame wide, crop tight
      1m 2s
    2. Using the Crop tool
      8m 8s
    3. Fixing out-of-canvas wedges
      5m 31s
    4. Crop tool presets
      6m 53s
    5. Previewing the crop angle
      4m 24s
    6. The Crop command
      4m 47s
    7. Straightening with the Ruler tool
      4m 18s
    8. Cropping without clipping
      5m 1s
    9. Perspective cropping
      4m 39s
  8. 1h 41m
    1. Making drab colors look better
      1m 20s
    2. Brightness and contrast
      4m 10s
    3. Adjusting numerical values
      4m 26s
    4. Introducing adjustment layers
      5m 17s
    5. Editing adjustment layers
      2m 51s
    6. Saving adjustment layers
      4m 35s
    7. Adding a quick layer mask
      4m 23s
    8. Introducing the Histogram
      4m 34s
    9. Working with the Histogram panel
      6m 27s
    10. Using Color Balance
      7m 18s
    11. Introducing the Variations command
      4m 51s
    12. Luminance and saturation controls
      3m 54s
    13. Fading a static adjustment
      3m 21s
    14. How hue and saturation work
      4m 28s
    15. Rotating hues and adjusting saturation
      6m 4s
    16. Creating a quick and dirty sepia tone
      4m 42s
    17. Adjusting hues selectively
      5m 32s
    18. The Target Adjustment tool
      4m 24s
    19. Photoshop CS5 Target Adjustment enhancements
      53s
    20. Adjusting the color of clothing
      8m 44s
    21. Enhancing a low-saturation image
      4m 23s
    22. Refining saturation with Vibrance
      5m 1s
  9. 1h 57m
    1. Photoshop versus the real world
      1m 21s
    2. Meet the selection tools
      10m 26s
    3. Marking the center of an image
      4m 9s
    4. Drawing a geometric selection outline
      4m 45s
    5. Blurring a selection outline with Feather
      6m 8s
    6. Copy and paste versus drag and drop
      5m 31s
    7. Creating a graduated selection
      4m 29s
    8. Aligning one image with another
      4m 45s
    9. Accessing the Move tool on the fly
      3m 34s
    10. Invert and Match Colors
      5m 4s
    11. Matching colors selectively
      3m 52s
    12. Feathering and filling a selection
      5m 14s
    13. Dressing up a composition with effects
      5m 34s
    14. The incredible image rotation trick
      2m 18s
    15. The Magic Wand tool
      4m 12s
    16. Tolerance and other options
      7m 7s
    17. Grow, Similar, and Inverse
      5m 39s
    18. Quick selection and the Magnetic Lasso
      7m 27s
    19. Evaluating a selection in Quick Mask
      8m 52s
    20. Saving and loading selections
      6m 14s
    21. Placing an image with a layer mask
      3m 23s
    22. Eliminating edge fringing
      7m 43s
  10. 1h 58m
    1. Brushing to correct
      56s
    2. How brushing works
      4m 52s
    3. Working with spacing
      7m 32s
    4. Changing size and hardness
      7m 45s
    5. The heads-up Color Picker
      7m 17s
    6. Flipping a mirror image
      3m 33s
    7. Setting the source for the History brush
      3m 42s
    8. Brightening details with the Dodge tool
      7m 49s
    9. Darkening details with the Burn tool
      3m 5s
    10. The Sponge tool
      4m 29s
    11. Backing off edits
      8m 4s
    12. Patching eye bags
      8m 57s
    13. Evening out flesh tones
      7m 23s
    14. Smoothing away whiskers
      7m 41s
    15. Reducing shadow noise
      7m 0s
    16. How healing works
      4m 40s
    17. The enhanced Spot Healing brush
      4m 52s
    18. Using the better Healing brush
      4m 23s
    19. Introducing the Clone Source panel
      3m 49s
    20. Cloning from one layer to another
      5m 30s
    21. Working with multiple sources
      4m 44s
  11. 1h 23m
    1. The layered composition
      1m 0s
    2. Making a new background layer
      6m 58s
    3. Working with "big layers"
      6m 24s
    4. Move, Duplicate, and Scale
      4m 11s
    5. Transforming a copy and repeat
      5m 15s
    6. Stacking order and eyedropping a layer
      5m 15s
    7. Adjusting multiple layers at once
      4m 22s
    8. Switching between layers
      4m 56s
    9. Making a digital star field
      5m 9s
    10. Blend mode and clipping mask
      4m 50s
    11. Dragging and dropping from your desktop
      4m 38s
    12. Black + Lens Flare = glow
      6m 16s
    13. Locking transparency
      5m 42s
    14. Adding gradient layers
      8m 12s
    15. Stacking an adjustment layer
      4m 12s
    16. Adding shadow and stroke
      6m 9s
  12. 1h 17m
    1. Outputting from Photoshop and Bridge
      1m 32s
    2. Printing an RGB composite
      5m 31s
    3. Customizing the subjective print file
      3m 15s
    4. Gauging print size
      5m 35s
    5. Scale, position, and page orientation
      5m 6s
    6. Three important printing curiosities
      4m 41s
    7. Introducing the Output options
      5m 34s
    8. Establishing a bleed
      5m 52s
    9. Using the Color Management options
      7m 21s
    10. Generating a PDF contact sheet
      6m 18s
    11. Creating a contact sheet template
      6m 8s
    12. Saving and opening a PDF contact sheet
      4m 18s
    13. Introducing the Web Gallery
      7m 53s
    14. Exporting and editing an HTML site
      3m 58s
    15. The Airtight Photocard site
      4m 56s
  13. 1h 9m
    1. Rules of the web
      1m 1s
    2. Introducing web graphics
      6m 59s
    3. A first look at Save for Web
      5m 47s
    4. Scaling a layered image versus a flat one
      7m 30s
    5. Incremental downsampling
      3m 1s
    6. Adding text, bar, and stroke
      4m 24s
    7. Assigning copyright and metadata
      6m 21s
    8. Comparing GIF, JPEG, and PNG
      4m 59s
    9. Determining the perfect JPEG settings
      6m 31s
    10. Saving metadata
      3m 52s
    11. Working with an unprofiled RGB image
      4m 35s
    12. Downsampling graphic art
      4m 49s
    13. Saving a GIF graphic
      6m 1s
    14. Antiquated GIF versus the better PNG
      4m 6s
  14. 1m 37s
    1. Until next time
      1m 37s

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Photoshop CS5 One-on-One: Fundamentals
17h 33m Beginner May 07, 2010

Viewers: in countries Watching now:

Photoshop is the world’s most powerful image editor, and it’s arguably the most complex, as well. Fortunately, nobody knows the program like award-winning book and video author Deke McClelland. Join Deke as he explores such indispensable Photoshop features as resolution, cropping, color correction, retouching, and layers. Gain expertise with real-world projects that make sense. Exercise files accompany the course.

Download Deke's free dekeKeys and color settings from the Exercise Files tab.

Topics include:
  • Assembling photorealistic compositions
  • Understanding image size and resolution
  • Correcting the brightness and color of images
  • Creating accurate selection outlines
  • Retouching and healing photos
  • Mastering layers and effects
  • Printing and exporting to the web
Subjects:
Design Photography
Software:
Photoshop
Author:
Deke McClelland

Upsampling versus "real" pixels

All right gang, we've chosen the image Size command, we've turned on Resample image, we've set the Interpolation of Bicubic and we've set the Resolution value to 600 pixels per inch, thereby ensuring that we will increase the size of the image to 36 times its former size. So now what I'm going to do is click the OK button in order to scale that image and now we are seeing the new pixels at the 100% zoom ratio, but I'm not sure where we are inside the image, so I'm going to press and hold the H key in order to take advantage of that bird's eye function.

So with H pressed clicking and holding and then dragging up here to the skeleton of the shepherd. And you know what, I'm going to go ahead and zoom in by pressing Ctrl+Plus or Command+Plus on the Mac, so that we can view this guy in more detail and I'm also going to press Shift+Tab to hide my right-side panels, and this is the new detail inside the image, now just to give you a sense of how far we've come, this is what the image look like if we just zoomed it to 1200%, and you can see the zoom level up here in the Application Bar.

As opposed of course to the new detail, that was generated by Upsampling the image using the Image Size command, and we're seeing the image now at 200%. So I think fairly obviously, the resampled image is in somewhat better shape than the zoomed only image, and we won't see the Pixel Grid, right, if we had zoomed it using nearest neighbor or something that didn't really take advantage of Interpolation, then we would see the image more like this. So I just press Ctrl+H or Command+H to hide the Pixel Grid for a moment.

So this is a better depiction of the image, and this of course is the Upsampled version. Now the Upsampled version does give us a little better line definition I suppose, I mean we can tell a little better that the stripes are teeth inside the skeleton's head as opposed to this view where it's a little ambiguous what we're looking at quite frankly. Also bear in mind that this image is about 2 megabytes inside of Photoshop and you are just going to zip through it with your edits, whereas this image is like 64 megabytes, 65, something along those lines, so much, much bigger.

And it's going to take Photoshop a little more effort to work its way through, and it's going to take longer to print, and in return you're not really getting that much better detail. So my point is this, Photoshop though it tries very hard to generate new detail when you are Upsampling an image, is not very good at it, because it doesn't know what that original detail was. It's giving you sort of gummier, murkier transitions than you have with straight pixels, however, that's not really the same as actual real detail.

What's the solution? If this isn't the solution, what is? The solution, my friends, is this image right here and it goes by the name Shepherd and big flock.tif, and what this is is an image that I scanned at a higher resolution in the first place. So I'm going to do ahead and press Ctrl+ 1 or Command+1 on the Mac, in order to zoom into this image at 100%. I'm going to press and hold the H key once again, and click and hold, and drag my View up to the skeleton, just like so.

Scroll them over a little bit, and now, you can see what the skeleton really look like, these are the actual lines. In fact, you might argue, we have a little bit too much information, because we have all this glorious, wonderful paper texture, which I think looks absolutely fantastic. And some of the lines are amazingly smooth, like these lines around the shoulder blade, this line through the skeleton's mouth, some of the lines in the hat and so on. So compare that my friends to the Upsampled version here, and it's no comparison whatsoever.

The real thing, the real pixels, are what you want. You want to capture as many pixels as possible. So what does that mean? If you're scanning -- if you're shooting with a Digital Camera always shoot at your top resolution, do not buy-in to the notion that you should shoot at a lower resolution because you can pack more images onto your card. That is a bunch of malarkey from a Photoshop perspective. Because we don't care how many images you can pack on your card you can always get more cards, if you need to, what we care about is the quality of the image inside of Photoshop, and if you capture as many pixels as possible, you have more room to crop.

You have more room to re-size. You have more room to edit the image, more pixels are always going to lead to more clarity. Now what about scanning, what resolution should you scan at? Well, you should look at your Scanner's documentation and you should find out what the top Optical Resolution is. You don't care about the very top resolution. You care about the top Optical Resolution and you should scan at that resolution on a regular basis. Now I'll admit something here, my top Optical Resolution with this Scanner was 1200 pixels per inch, and I went ahead and scanned this image at 600 pixels per inch, which worked out just fine for Pencil Art like this.

But if later, I think I should, wish I had scanned it at a higher resolution, I'm out of luck, unless I want to go back and scan it at a higher resolution. So when in doubt, regardless of the device, capture as many pixels as you can.

Find answers to the most frequently asked questions about Photoshop CS5 One-on-One: Fundamentals.


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Q: While following along to the tutorial, my copy of Bridge does not have the same Export options as shown in the video. Why are these options missing in my copy?
A: For some reason, Bridge CS5 shipped without the Export options. They were included when Bridge updated to version 4.0.1. Updating Bridge will restore the export options.
Q: While following along with the exercises, next to the background layer on my Layers panel \, it shows a brush instead of the small picture, as it does in the video. What can I do to fix this? I erased the exercise files and started over, but it still shows the paintbrush.
A: This will occur if the Layers panel preview is turned off. To fix this, right-click in the empty gray area below the Background layer. Then choose Large Thumbnails. The thumbnail previews should come back immediately.
Q: The instructions for installing the dekeKeys don't work on my computer (which is running Mac OS X Lion). Is there an update to these?
A: The dekeKeys distributed with this course will still work for Lion. You just need to add them to a slightly different folder than in previous versions of OS X.

Open a new Finder window and choose Go > Go to Folder. Type the following file path exactly as written below. Copying and pasting may result in an error.

~/Library/Application Support/Adobe/Adobe Photoshop CS5/Presets/Keyboard Shortcuts

Move and/or copy/paste the dekeKeys to this folder and follow the rest of the instructions as outlined in the video, "Installing the dekeKeys keyboard shortcuts."
Q: How do I load the color workflow setting for this course? I downloaded the exercise files, and when I attempt to load the setting into Photoshop, they don't appear in the Finder.

A: These days, it's easier to assign the workflow settings manually. In Photoshop, choose Edit > Color Settings. Then change the first RGB setting to Adobe RGB, and click OK.

 
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