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Restoring much-needed antialiasing

From: Photoshop CS3 Sharpening Images

Video: Restoring much-needed antialiasing

So here we are working inside that use neutral composition that I was telling you about in the previous exercise. By the way the name of this image, in case you want to open it up, is Field of greena.PSD. Its found inside of the 08_for_output folder, and you can see here that we've gotten these choppy details toward the top of the cabbage horizon right there. So the cabbages at the bottom of the image are in really great shape, but then they sort of deteriorate toward the top of the image frankly. What we're going to need to do is add a gradient to our existing filter mask in order to fade this mark sharpen effect away from these top cabbages, and I am going to do that using a Standard Gradient tool.

Restoring much-needed antialiasing

So here we are working inside that use neutral composition that I was telling you about in the previous exercise. By the way the name of this image, in case you want to open it up, is Field of greena.PSD. Its found inside of the 08_for_output folder, and you can see here that we've gotten these choppy details toward the top of the cabbage horizon right there. So the cabbages at the bottom of the image are in really great shape, but then they sort of deteriorate toward the top of the image frankly. What we're going to need to do is add a gradient to our existing filter mask in order to fade this mark sharpen effect away from these top cabbages, and I am going to do that using a Standard Gradient tool.

So go ahead and grab the Gradient tool here inside the tool box, and then I want you to make sure that your gradient is set to this one right here, which is to say Foreground to Transparent. So you can click on this down-pointing arrowhead and choose this gradient right there, Foreground to Transparent, make sure that your style gradient is Linear, this first guy, Mode is set to normal, Opacity is 100%, Reverse is turned off. These are all default settings, by the way. You should also make sure that your foreground color is set to black as it is for me. Now with all this stuff good to go here, I am going to go ahead and drag down like so. Notice that the horizon line is at an angle, because I would imagine that we're on something of a slope at this point here, because the trees are upright so I think the image is upright as well.

But I am going to drag basically perpendicularly to that angle right there like so. I am going to start a little bit above the horizon and then I am going to drag down like this to about this point in the cabbages and then I am going to release, and you can see that Photoshop goes ahead and ignores me. Oh! Look at me I am working on wrong layer, for shame! Alright, I will go ahead and then do that modification. I just got down and editing the sky filter layer. Lets go down here to the filter mask that's associated with Smart Filter there, and now I will replay that modification I just applied, and we end up softening the top cabbages.

I'll go ahead and zoom in there so you can see the difference. This is before with these very sharp, weird little tiny details there; and this is after with the better anti-alias tiny cabbages. They are not way better of course because they didn't resolve well. They are too tiny to resolve very well, but they are in much better shape than they were. Now the problem at this point is that we went ahead and got rid of the sharpening on top of the trees, and I actually want to reinstate some of the sharpening. So what I am going to do is I am going to press Ctrl+Shift+F or Command+Shift+F on the Mac or I can go up in the Edit menu and choose the Fade Gradient command right there, and then I am going to go ahead and back off my gradients a little bit.

I am going to take it down to something along the lines of about- I think, you know what, maybe for this we might want to go as low as 50%. Lets see how that works out. And that looks pretty darn good. That leaves us with a little bit of trees and a little bit of the sharpen cabbages as well. If you want less of the effects, you take the value higher, obviously if you want to less sharpening going on up there. Well, I think actually I'll go ahead and set it for an opacity value at 65%, and this is of course a subjective modification because were sharpening through detail inside the image.

So that takes care of that problem. In the next exercise, a fairly straightforward modification- oh! I should mention if you watched my Photoshop CS3 Channel & Masks series, you know that when editing masks, especially when applying a gradient to an existing mask, I typically prefer to work with the knockout layer, because that gives me a lot of flexibility, I can change my mind well into the future. Here I am actually changing the pixels inside of the masks, so it boils down to a permanent modification. So I don't like to work this way but I don't have any choice where Smart Filters are concerned.

When you're working with Smart Filters you can't use things like knockout layers and other fancy tricks, you have to just go in there and edit that Filter Mask directly. So that takes care of that problem. In the next exercise we're going to address the noise inside of the sky.

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This video is part of

Image for Photoshop CS3 Sharpening Images
Photoshop CS3 Sharpening Images

115 video lessons · 17003 viewers

Deke McClelland
Author

 
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  1. 50m 30s
    1. Why every image needs sharpening
      2m 38s
    2. Understanding the effects of sharpening
      5m 26s
    3. Understanding the mechanics of sharpening
      4m 19s
    4. Understanding sharpening and gradual transitions
      3m 21s
    5. Understanding sharpening and noise reduction
      4m 0s
    6. Understanding amount and radius
      7m 50s
    7. Measuring your screen resolution
      6m 19s
    8. Using reliable zoom ratios
      5m 30s
    9. Calculating the actual print size
      4m 54s
    10. Gauging the ideal sharpening settings
      6m 13s
  2. 59m 31s
    1. Everyone knows you sharpen last (and everyone is wrong)
      1m 8s
    2. Understanding the conventional sharpening workflow
      5m 4s
    3. Flattening and saving to TIFF
      6m 39s
    4. Downsampling (and why you shouldn't upsample)
      6m 8s
    5. Understanding last-step sharpening
      6m 44s
    6. Recognizing problems with the conventional workflow
      9m 38s
    7. Erasing sharpening with the history brush
      4m 30s
    8. Using alternative sharpening workflows
      2m 37s
    9. Sharpening a scanned photograph shot on film
      2m 45s
    10. Sharpening a digital photograph
      3m 6s
    11. Sharpening specific details
      3m 43s
    12. Finding broad workflow conclusions
      2m 49s
    13. Learning that technique trumps timing
      4m 40s
  3. 1h 27m
    1. Comparing and contrasting neighboring pixels
      1m 6s
    2. Using the Gaussian Blur filter
      4m 25s
    3. Using Gaussian luminance distribution
      4m 47s
    4. Using the Unsharp Mask filter
      4m 54s
    5. Understanding the history of Unsharp Mask
      3m 51s
    6. Building your own USM with Gaussian Blur
      7m 35s
    7. Using the Smart Sharpen filter
      7m 35s
    8. Compensating for camera shake
      8m 50s
    9. Building your own Smart Sharpen with Lens Blur
      6m 59s
    10. Using directional sharpening with Emboss
      9m 13s
    11. Using Smart Sharpen extras
      8m 56s
    12. Using Convolution Kernels for more accuracy
      7m 8s
    13. Using the High Pass filter
      7m 32s
    14. Using Luminance Sharpening
      5m 5s
  4. 2h 14m
    1. Smoothing filters, smart objects, and masks
      1m 25s
    2. Using the Median filter and Dust and Scratches
      7m 7s
    3. Using Smart Blur and Surface Blur
      6m 12s
    4. Using the Despeckle filter
      8m 17s
    5. Softening flesh tones selectively
      10m 15s
    6. Using the Reduce Noise filter
      7m 27s
    7. Combining smoothing and sharpening
      8m 24s
    8. Making an image into a smart object
      9m 24s
    9. Applying editable smart filters
      6m 8s
    10. Combining two smart filters
      8m 5s
    11. Assigning a filter mask
      5m 59s
    12. Nesting one smart object inside another
      10m 32s
    13. Employing a static High Pass layer
      8m 59s
    14. Matching static pixel-level edits
      4m 37s
    15. Avoiding clipping with luminance blending
      9m 7s
    16. Sharpening and smoothing
      6m 36s
    17. Making an edge mask
      8m 14s
    18. Making a non-edge mask
      7m 17s
  5. 1h 33m
    1. Sharpening with Adobe Camera Raw
      1m 29s
    2. Introducing Camera Raw (4.1 or later)
      8m 13s
    3. Understanding why to sharpen for source
      5m 14s
    4. Using Camera Raw’s sharpening control
      5m 52s
    5. Previewing limitations and tricks
      6m 45s
    6. Why downsampling doesn’t work
      3m 12s
    7. Reducing chromatic aberration
      7m 30s
    8. Using the Defringe option
      3m 32s
    9. Understanding high frequency, low radius
      5m 21s
    10. Raising the Detail value
      3m 6s
    11. Using on-the-fly edge masking
      5m 41s
    12. Sharpening a low-frequency portrait
      6m 36s
    13. Eliminating color noise
      4m 47s
    14. Reducing luminance noise
      4m 42s
    15. Correcting “false sharpening”
      7m 15s
    16. Reducing shadow noise
      5m 22s
    17. Approximating ACR sharpening in Photoshop
      8m 35s
  6. 59m 8s
    1. Gauging and exploiting luminance frequency
      1m 27s
    2. Using low-frequency source sharpening
      5m 53s
    3. Using High Pass for portraits
      4m 19s
    4. Actioning a low-frequency edge mask
      7m 42s
    5. Modifying the source sharpening
      5m 21s
    6. Using high-frequency source sharpening
      5m 26s
    7. Using Smart Sharpen for cityscapes
      3m 2s
    8. Actioning a high-frequency edge mask
      5m 4s
    9. Downplaying color artifacts and clipping
      4m 4s
    10. Sharpening a medium-frequency image
      5m 24s
    11. Sharpening a layered composition
      7m 16s
    12. Sharpening for multiple frequencies
      4m 10s
  7. 1h 8m
    1. Who needs dull when you have sharp?
      56s
    2. Focusing in on a person’s eyes
      4m 22s
    3. Blurring the area outside the eyes
      4m 22s
    4. Sharpening eyes and other details
      5m 38s
    5. Darkening the lashes and eyebrows
      7m 13s
    6. Sharpening dark-haired people
      5m 2s
    7. Edge mask and emphasize
      3m 39s
    8. Nesting a Smart Sharpen effect
      4m 48s
    9. Density mask sharpening
      5m 35s
    10. Adding depth of field
      4m 39s
    11. Sharpening a background
      4m 23s
    12. Masking background from foreground
      8m 51s
    13. Eliminating halos around a person
      5m 38s
    14. Deepening and warming a background
      3m 28s
  8. 1h 18m
    1. Reverting back to convention
      1m 37s
    2. Understanding the use-neutral composition
      4m 15s
    3. Restoring much-needed antialiasing
      4m 2s
    4. Reducing noise in a high-frequency image
      7m 24s
    5. Making a third-level smart object
      3m 55s
    6. Preparing an image for print
      5m 18s
    7. Using ideal settings for commercial reproduction
      5m 37s
    8. Calculating very large-format settings
      5m 11s
    9. Using ideal settings for inkjet output
      4m 26s
    10. Sharpening for commercial reproduction
      5m 45s
    11. Sharpening for inkjet output
      4m 58s
    12. Revealing high-frequency multipass sharpening
      5m 21s
    13. Using Gaussian Blur to sharpen hair
      5m 41s
    14. Flatten, Save As, Resample, and Sharpen
      5m 9s
    15. Revealing low-frequency multipass sharpening
      3m 30s
    16. Sharpening an image for web or screen
      6m 22s
  9. 1m 50s
    1. Goodbye
      1m 50s

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