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Photoshop CS3 Sharpening Images
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Using high-frequency source sharpening


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Photoshop CS3 Sharpening Images

with Deke McClelland

Video: Using high-frequency source sharpening

Alright, now lets talk about sharpening a high frequency image, and once again we are going to take the image into Camera RAW to sharpen for the source, and then we are going to take it into Photoshop to sharpen for the detail. Now I have got the Bridge once again trained on the 06_for_detail folder, that's inside the exercise files folder. I would like you to go ahead and select the Cabs and buildings.jpg image. This image comes to us from Damir Spanic, once again of iStockphoto.com. By the way, if you scroll down your list a little bit here, you will see the original Coffee to go.jpg image that we opened a few exercises back, notice it has a little settings icon in the upper right hand corner of the thumbnail. That indicates that now the Bridge considers this to be a Camera RAW file, and it has some Camera RAW settings saved along with it.
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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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Photoshop CS3 Sharpening Images
10h 33m Intermediate Feb 15, 2008

Viewers: in countries Watching now:

Real focus happens inside the camera's lens element. The sharpening features in Photoshop CS3 exaggerate the contrast along edges in a photograph to transform a well-focused image into an outstanding image. In Photoshop CS3 Sharpening Images, Deke McClelland teaches a host of sharpening and noise reduction techniques, including using filters such as Unsharp Mask, Smart Sharpen, High Pass, and Reduce Noise. The training teaches the essentials of sharpening, including what it does, why it's important, and how the filters function. Plus, the training covers Deke's recommended best practices, including the four distinct varieties of sharpening, which can be used independently or in combination with each other. Photoshop CS3 Sharpening Images is about how to transform images from looking good to looking their absolute best. Exercise files accompany the course.

Topics include:
  • Understanding the effects of sharpening
  • In-depth examinations of Unsharp Mask, Smart Sharpen, Emboss, and High Pass
  • Smoothing an image with the Surface Blur, Despeckle, and Reduce Noise features
  • Working with smart objects and smart filters
  • Creating edge masks and non-edge masks
  • Sharpening for digital-image capture using Camera Raw
  • Gauging and exploiting luminance frequency
  • Exploring creative applications of sharpening
  • Sharpening a multilayer composition
  • Sharpening eyes, hair, and out-of-focus backgrounds
  • Reducing noise in a high-frequency image
  • Determining ideal settings for commercial and inkjet output
  • Sharpening very large-format images
  • Sharpening an image for the web or screen output
Subjects:
Photography Sharpening
Software:
Photoshop
Author:
Deke McClelland

Using high-frequency source sharpening

Alright, now lets talk about sharpening a high frequency image, and once again we are going to take the image into Camera RAW to sharpen for the source, and then we are going to take it into Photoshop to sharpen for the detail. Now I have got the Bridge once again trained on the 06_for_detail folder, that's inside the exercise files folder. I would like you to go ahead and select the Cabs and buildings.jpg image. This image comes to us from Damir Spanic, once again of iStockphoto.com. By the way, if you scroll down your list a little bit here, you will see the original Coffee to go.jpg image that we opened a few exercises back, notice it has a little settings icon in the upper right hand corner of the thumbnail. That indicates that now the Bridge considers this to be a Camera RAW file, and it has some Camera RAW settings saved along with it.

If you don't want those Camera RAW settings to be assigned to the JPEG file anymore, which I suggest you don't, then go ahead and right click on the thumbnail, choose Develop Settings. Then choose Clear Settings, like so and that will get rid of those settings, and now that will open as a normal JPEG file in the future, because after all you have already got some PSD versions of the file, if you want to revisit those Camera RAW settings. Aright, I am going to go ahead and select Cabs and buildings.jpg once again, and I am going to go to the File menu and choose Open in Camera RAW or press Crtl+R, Command+R in the Mac, in order to open up the Camera RAW interface here.

I will go ahead and fill the screen with the interface once again. Now this is a high frequency image, meaning that there are a lot of rapid luminance variations inside the image. So we are switching from highlights to shadows, back to highlights very quickly, all over the place. There are all kinds of fine details inside of the image as well, and a cityscape is a very typical kind of high frequency image, just as things likes trees and plants and landscapes end up being high frequency images as well; basically distant shots which are taking in a lot of objects at once.

Now I am going to go ahead and switch over to the Detail panel. I want to be able to see the grill of this taxi cab here at the 100% zoom ratio. I am going to crank up that Amount value once again, so I can keep track of what's going on. Now I know in advance this time, I know that in a second pass I am going to be sharpening the detail inside the image inside Photoshop, so as long as I am in Camera RAW, I just want to sharpen for the digital photography process and nothing more. So I am going to enter those same settings I showed you in a previous exercise, which are 0.6 for the Radius, lets go ahead and take the Detail value down to 0, so that we are not bringing up much noise inside the image.

I am going to take the Masking value up to 30 once again. Now this image does actually have some weird stuff going on inside of it. If I zoom in very closely on the windshield, for example, you can see that we have some weird colors that are showing up around the edges of the windshield, and this is happening in other places inside of the image as well. Part of what I think might have happened here is that when this image was originally either converted from the RAW file format to JPEG, or when it was photographed as a JPEG file, the converter didnt end up running any kind of color noise reductions.

So I am going ahead and apply the standard 25 value here, the standard 25 color value. That does take some of the color out of that windshield. Now I am going to go ahead and scroll upward towards the top of the image. You can see in the top right corner of the image, let me go ahead and move up here, we don't have scrollbars inside of Camera RAW, so it does takes some time to get to different locations when we are working at the 400% zoom ratio. You might be able to make out that we have a little bit of magenta going along the top of these windows, and once again, we are in the upper right hand corner of the image, and we have some cyan that's outlining the other portion of the windows as well.

We can get rid of that by switching over to the Lens Corrections panel, and I could fool around with the Chromatic Aberrations slider bars, they don't turn out to do that much good where this image is concerned. What does a fair amount of good, it's subtle once again, but it does work, is to switch Defringe from Off to All Edges. And did you see that? We just got rid of a lot of coloring that's going on inside of those windows. If we zoom out a little bit, I think that's a better idea to zoom out and then scroll down here to the cab, and then of course zoom back in, you will see that we have taken some of the color out of the edges of that windshield as well.

Its not completely remedied, we still have a few color artifacts going on, but its much better than it was before. Alright, so those are the settings I am going to apply. Once again, set defringe to all edges, and then inside of the Detail panel we have got Radius-0.6, Detail-0, Masking-30, Color-25. One change that I do suggest you make, I think the Amount value is a little too high here, lets go ahead and knock that down to about 60, its going to do better where this image is concerned. Then I want you to press the Shift key and click on the Open Object button, down there at the bottom of the dialog box, in order to open the image as a Camera RAW Smart Object inside Photoshop.

Alright, so we have now successfully sharpened for the source, I believe anyway, and we are now going to move on to sharpening for the detail inside of this high frequency image in the next exercise.

There are currently no FAQs about Photoshop CS3 Sharpening Images.

 
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