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Evaluating a selection in Quick Mask


Photoshop CS5 One-on-One: Fundamentals

with Deke McClelland

Video: Evaluating a selection in Quick Mask

In this exercise I'm going to show you how to gauge the quality of a selection outline in the Quick Mask mode, and then address any problems you may see. I'm still working inside ManlySaw image.jpg found inside the 08_selections folder, and if you're working along with me I'd like you to visit the History panel once again, so that you can see how long our list of history operations has become, and because my Quick Selection wasn't really all that quick to create, you can see how many times I had to click and drag with a tool. I want to go ahead ad back it up in memory by creating another snapshot.
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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 33s
    1. There is nothing you can't do
      2m 1s
    2. The power of Photoshop
      4m 43s
    3. Duplicating a layer
      4m 46s
    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 18s
    1. The best way to work
    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 16s
    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
    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
    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
    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
    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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Watch the Online Video Course 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
Design Photography
Deke McClelland

Evaluating a selection in Quick Mask

In this exercise I'm going to show you how to gauge the quality of a selection outline in the Quick Mask mode, and then address any problems you may see. I'm still working inside ManlySaw image.jpg found inside the 08_selections folder, and if you're working along with me I'd like you to visit the History panel once again, so that you can see how long our list of history operations has become, and because my Quick Selection wasn't really all that quick to create, you can see how many times I had to click and drag with a tool. I want to go ahead ad back it up in memory by creating another snapshot.

So I'm going to press the Alt key or the Option key on the Mac and click that little Camera icon, and then I'll go ahead and call this guy quick blade and click OK, and now I have another snapshot. So if I click on selection safety, I'm going to see the magic wand state of that saw blade, and if I click on quick blade I'll see the most recent version of the selection outline. Now notice that all the individual history states are now dimmed, what that tells you is if you start to perform a new operation, for example, I'll just drag with the Quick Selection tool once again, they're all going to go away.

I still have my snapshots including the one that Photoshop created automatically for me when I opened the image. However, all the individual History states have been jettisoned, if you don't like that watch this, you can go up to the Edit menu and choose Undo Quick Selection or press Ctrl+Z or Command+Z on the Mac and not only will that undo that last state, it will restore all of your History states as well. So this is one of the geniuses of having a single level undo that's independent of the History structure inside Photoshop. Anyway I'm going to go ahead and scroll down to the bottom of the History panel and click on Quick Selection once again, so I retain all of my states as many as I can keep anyway, up to 20 by default, and I'll hide the History panel.

And now I'm going to go ahead and enter the Quick Mask mode by clicking on this icon at the bottom of the toolbox or you can press a Q key both to enter and exit the Quick Mask mode. Now what we're seeing for starters is a kind of rubylith metaphor if you're familiar with old-school techniques and what that means is anything that's not selected has a red overlay and anything that is selected we see the actual image with no overlay and you can zoom out from the image and take it in if you want to. But that's not really going to help us gauge the quality of the saw blade.

I'm going to zoom back in, and I am going to visit my Channels panel for a moment here, and notice that Quick Mask appears as a temporary channel at the bottom of the list. It's actually a temporary alpha channel, we'll learn more about Alpha Channels when we take a look at masking in the mastery portion of this series. But note that I can see this mask independently of the image if I just go ahead and turn the image off. So if I click that eye in front of RGB then I just see the mask by itself. In which white represents the selected portion of the image and black represents the deselected portion, and you can actually paint in this mode you can paint white to add to the selection, you can paint black to delete from the selection, but right now all I'm doing is looking at this selection and thinking ye gads.

I'd zoom out a little bit for a moment just so I can take in the body of the saw which actually looks pretty good. It's a little jagged in places but the Magic Wand tool did a pretty good job, whereas the newer and supposedly improved Quick Selection tool has done just a ghastly job on this blade. Now your results may vary, buy in my case. I'm going to say I don't like this selection outline, I think I can do better with a different tool. So I'm going to press the Q key to escape the Quick Selection mode or I could click that icon at the bottom of the toolbox once again.

And I'm going to go over to the History panel and I'm going to go ahead and scroll up to that selection safety state and click on it in order to restore that state and get rid of the stuff I did with a Quick Selection tool or I could figure out the exact state in the list that I want to keep, and that would be right here, Select Inverse before my first quick selection. Either one is going to work. I'll go ahead and close the History panel. Now I'll switch over to the Lasso tool, like so, and I'm going to press the Alt key, I want to get rid of this garbage here, so I'll press the Alt key or the Option key on the Mac and I will drag around this area in order to deselect it, and now it's gone, good.

The next step is to grab the Polygonal Lasso tool, and I'll scoot things over just a little bit here and then I'm going to press the Shift key so I can add to the selection and I'll click right here, and now I can release the Shift key because I've already instructed Photoshop I'm adding. I can see the Plus sign so everything is good to go and I'll click, click like so, click at this and right there, click right there. I'm kind of making up detail right now because it's so blurry, click at this point, and then I'll just go back. I'm not going to click along every one of those teeth, I'm not insane.

So I'll just come back to the body of the saw, like so, and then double-click at about that location and I go ahead and select the entire saw blade, awesome, and it's actually going to do a really great job, I'll show it to you in a minute, but first I want to show you a top- secret technique, in case you want to know, now some of you are going to roll your eyes and go, why would I want to do that? But just in case I'm going to press Ctrl+Z, Command+Z on the Mac to undo the addition of that saw blade and I'm going to switch back to the Standard Lasso tool. You can get to the Polygonal Lasso tool by pressing the Alt key before you start using the tool, and that would be the Option key on the Mac.

But that technique only works when there is no selection outline going inside the image. We have a selection outline that we have been spending a fair amount of time on so we don't want to ruin it. And if I press the Alt or Option key at this point, then I'm going to get the Subtraction function. So the question is, how do I add to a selection using the Standard Lasso without switching tools and take advantage of the polygonal function? And I'll show you how that works, again be prepared to either love it or hate it. It's up to you, I'm just going to show it to you.

Go ahead and press the Shift key in order to add to the selection outline, begin dragging with the tool, release the Shift key, press and hold the Alt or Option key and then release the mouse button and begin clicking, like so. So that's how you take advantage of that polygonal function when you're in the process of using the Standard Lasso tool. Again, I'm going to demonstrate that again because it's a little weird, I'll undo by pressing Ctrl+Z or Command+Z on the Mac. You press the Shift key, you begin drawing with the Lasso.

That way you're starting to add to the selection. Release the Shift key, keep the mouse button down, press and hold Alt or Option on the Mac, keep that key down now and now release the mouse button and click. But I still have the Alt key down, I don't have shift down anymore but I still have Alt or Option down, and I'll go ahead and trace that area like so and then all I need to do at this point is release the Alt or Option key and Photoshop goes ahead and completes the selection for me. Now let's press the Q key in order to enter the Quick Mask mode once again and that looks a lot better to me, it's not nearly so choppy, it doesn't have an definition to the blade, to the individual teeth in the saw blade, but you know what? I'm okay with foregoing that in the interest of getting smoother results.

Now I'm going to go ahead and turn off the RGB image once again so I can see my mask, and you can do that from the keyboard if you want to, I know I'm slinging a lot of keyboard shortcuts out here, but here is one, you can press the Tilde key and the Tilde key is the one directly above the Tab key or to the left of 1 key on an American keyboard and Tilde turns the RGB image off and it turns the RGB image on. So I'm going to press the Tilde key again in order to hide the RGB image, see the Quick Mask by itself, and there is one problem, one remaining problem right here. And that's this little thing right there, if I press the Tilde key to once again visit the RGB image we can see that that's a little bolt on the edge of the saw, so we've got to clean it up.

I'll press Tilde again to make the RGB image go away. I'm going to go get my Brush tool. You can also press the B key if you want to. I'm going to right-click with that tool on the Image window, I'm going to leave the Size at 13 pixels which is the default setting and I'm going to increase the Hardness to 100%, and then I'll press the Enter key or the Return key a couple of times in order to hide that panel, and I will click, but I need to make sure I have the right color selected. Right now if I were to click, I'd paint with black because that's my foreground color. So undo that, I'm going to click the Switch icon right here or press the X key to make white my foreground color and then I'll click again maybe click one more time in order to clean up that little mark.

All right, we're ready to use the selection outline, let's press the Q key in order to exit the Quick Mask mode. Our selection outline is good to go just one more thing that we ought to do and because we've spent so much time making this selection everything we wanted it to be. I think we ought to save it along with the image and I'm going to show you how to do that in the next exercise.

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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