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The three Auto commands

From: Photoshop CC One-on-One: Fundamentals

Video: The three Auto commands

In this movie, I'll introduce you to the three Auto commands. They're all under the Image menu and they include Auto Tone, Auto Contrast and Auto Color. Each one of them automatically adjusts the luminance levels inside of an image on a channel by channel basis. You just choose a command and it does its thing. If you like the result, you keep it, if you don't; you press Ctrl+Z or Command+Z on the Mac and try something else. Now the reason I'm showing these commands is not because they're terribly powerful. Hopefully, you won't be using them that often.

The three Auto commands

In this movie, I'll introduce you to the three Auto commands. They're all under the Image menu and they include Auto Tone, Auto Contrast and Auto Color. Each one of them automatically adjusts the luminance levels inside of an image on a channel by channel basis. You just choose a command and it does its thing. If you like the result, you keep it, if you don't; you press Ctrl+Z or Command+Z on the Mac and try something else. Now the reason I'm showing these commands is not because they're terribly powerful. Hopefully, you won't be using them that often.

However, Adobe's Click Data--Adobe collects the information from Photoshop users who buy into the program. Adobe's Click Data suggests that these three commands rank among the top 10 used features inside the software. So I'd like you to at least understand how they work. So I've set up this demo that includes a dollar bill. So I've set up a total of four money details, separated on independent layers. The first layer control, which is the guy over here on left, that is the Control layer.

We're not going to change the luminance of that layer at all. So I'll start things off by selecting the Auto Tone layer, which is the image in the middle of the screen here, and then I'll go up to the Image menu and choose the Auto Tone command. Now here's what's going on. Photoshop evaluates each channel independently and makes the darkest pixels in that channel black and the brightest pixels white, and stretches the other luminance levels across the spectrum. And it does so, on a channel by channel basis. So each channel is treated independently.

What that means is you end up changing the color cast of the image. So in our case, we've lost the natural green cast of the image and it's been replaced by a kind of reddish cast in the shadows. So you may find Auto Tone to be useful if an image contains a color cast that you want to get rid of. It's not really the case for this dollar bill however. All right, I'm going to scoot things over, so that I can see the next layer, which is Auto Contrast. I'll go and select that layer in the Layers panel, then I'll go up to the Image menu and choose the Auto Contrast command.

This time Photoshop is making the darkest pixels black and the brightest pixels white on a composite basis. So in other words, all three channels are affected in exactly the same way. That means we get darker shadows and brighter highlights, but the natural color cast of the image is not affected. And then finally over here on the left- hand side, we have the Auto Color image. I'll go and select the Auto Color Layer then go up to the image menu and choose the Auto Color command.

Now what Photoshop is doing is making the darkest pixels black and the brightest pixels white, once again on a channel by channel basis, just as with the Auto Tone command, but it's also neutralizing the midtones. So this is the only Auto Function that changes the midtones inside the image, and what that means is the authentically colorful items, such as the serial number and seal remain in color, but everything else about the dollar bill essentially goes grayscale.

All right I'm going to go and press the F Key a couple of times in order to switch to the Full Screen mode and then I'll press Ctrl+0 or Command+0 on the Mac in order to zoom out and that's what you should expect from the three Auto Commands, Auto Tone, Auto Contrast and Auto Color, found in the Image menu.

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This video is part of

Image for Photoshop CC One-on-One: Fundamentals
Photoshop CC One-on-One: Fundamentals

103 video lessons · 21627 viewers

Deke McClelland
Author

 
Expand all | Collapse all
  1. 38m 23s
    1. Welcome to One-on-One
      1m 51s
    2. Opening from the Windows desktop on Windows 8 (CC 2014) NEW
      6m 16s
    3. Opening from the Windows desktop on Windows 7 or earlier (CC) UPDATED
      5m 48s
    4. Opening from the Macintosh Finder UPDATED
      7m 10s
    5. Opening from Photoshop or Bridge
      3m 52s
    6. Opening an image from Mini Bridge (CC)
      2m 39s
    7. Opening through Camera Raw
      5m 11s
    8. Closing one image and closing all UPDATED
      5m 36s
  2. 52m 47s
    1. Navigating your image
      40s
    2. The dark vs. the light interface UPDATED
      6m 2s
    3. Navigating tabs and windows
      4m 32s
    4. Panels and workspaces
      6m 20s
    5. Zooming incrementally
      6m 22s
    6. Zooming continuously
      2m 43s
    7. Entering a custom zoom value
      2m 25s
    8. Scrolling and panning images
      2m 31s
    9. Rotating and resetting the view
      2m 11s
    10. Cycling between screen modes
      3m 10s
    11. Using the Navigator panel
      3m 38s
    12. Using Retina and HiDPI displays
      4m 3s
    13. Adjusting a few screen preferences UPDATED
      8m 10s
  3. 1h 2m
    1. Digital imaging fundamentals
      1m 45s
    2. Image size and resolution
      6m 34s
    3. The Image Size command
      6m 9s
    4. Common resolution standards
      4m 7s
    5. Upsampling vs. real pixels
      7m 59s
    6. Changing the print size
      8m 15s
    7. Downsampling for print
      5m 14s
    8. Downsampling for email
      6m 22s
    9. The interpolation settings
      6m 40s
    10. Downsampling advice
      5m 5s
    11. Upsampling advice
      4m 15s
  4. 53m 20s
    1. The layered composition
      1m 40s
    2. Introducing the Layers panel
      4m 12s
    3. Adding, scaling, and aligning layers
      5m 27s
    4. Dragging and dropping layers
      4m 36s
    5. Stack, reveal, and rename
      3m 1s
    6. Opacity, history, and blend mode
      6m 5s
    7. Duplicating a selected portion of a layer
      5m 32s
    8. Applying a clipping mask
      3m 58s
    9. Blending inside a clipping mask
      4m 10s
    10. Finishing off your artwork
      3m 13s
    11. Creating a new layer and background
      4m 24s
    12. Layering tips and tricks
      7m 2s
  5. 26m 13s
    1. The art of the save
      54s
    2. Four things to know about saving
      5m 59s
    3. Saving layers to PSD
      6m 34s
    4. Saving print images to TIFF
      4m 48s
    5. Saving an interactive image to PNG
      3m 40s
    6. Saving a flat photo to JPEG
      4m 18s
  6. 32m 16s
    1. Honing in on your image
      1m 43s
    2. The new and improved Crop tool
      4m 35s
    3. Editing your last crop
      6m 29s
    4. Cropping to a specific ratio or size
      5m 57s
    5. Straightening a crooked image
      4m 44s
    6. Filling in missing details UPDATED
      6m 44s
    7. Using the Perspective Crop tool
      2m 4s
  7. 44m 51s
    1. First, there is brightness
      2m 12s
    2. How luminance works
      4m 18s
    3. The three Auto commands
      3m 27s
    4. Automatic brightness and contrast
      6m 5s
    5. The Brightness/Contrast command
      2m 47s
    6. The dynamic adjustment layer
      4m 4s
    7. Editing adjustment layers
      3m 52s
    8. Isolating an adjustment with a layer mask
      3m 31s
    9. Introducing the histogram
      4m 58s
    10. Measuring an adjustment
      3m 34s
    11. Using the Shadows/Highlights command
      6m 3s
  8. 44m 33s
    1. And second, there is color
      1m 31s
    2. Identifying a color cast UPDATED
      3m 34s
    3. Correcting a color cast automatically
      3m 57s
    4. Changing the color balance
      6m 10s
    5. Compensating with Photo Filter
      3m 11s
    6. Adjusting color intensity with Vibrance
      3m 29s
    7. Correcting color casts in Camera Raw
      5m 46s
    8. The Hue/Saturation command
      5m 26s
    9. Summoning colors where none exist
      4m 8s
    10. Making more color with Vibrance
      4m 27s
    11. Making a quick-and-dirty sepia tone
      2m 54s
  9. 55m 46s
    1. Making selective modifications
      1m 10s
    2. The geometric Marquee tools
      6m 1s
    3. Aligning one image element to another
      4m 59s
    4. The freeform Lasso tools
      3m 59s
    5. The Polygonal Lasso tool and Quick Mask
      5m 19s
    6. Cropping one selection inside another UPDATED
      6m 15s
    7. Creating rays of light
      4m 44s
    8. Quick Selection and Similar
      4m 11s
    9. Making it better with Refine Edge
      4m 56s
    10. Integrating image elements
      2m 39s
    11. Magic Wand and Grow
      5m 17s
    12. Refine, integrate, and complete
      6m 16s
  10. 53m 48s
    1. Your best face forward
      1m 0s
    2. Content-Aware Fill UPDATED
      6m 11s
    3. Using the Spot Healing Brush
      5m 36s
    4. The more capable "standard" Healing Brush UPDATED
      5m 55s
    5. Meet the Clone Source panel
      3m 53s
    6. Caps Lock and Fade
      4m 57s
    7. The Dodge and Burn tools UPDATED
      5m 1s
    8. Adjusting color with the Brush tool UPDATED
      6m 35s
    9. Smoothing skin textures UPDATED
      5m 57s
    10. Brightening teeth
      4m 0s
    11. Intensifying eyes UPDATED
      4m 43s
  11. 49s
    1. Until next time
      49s

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