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Photoshop CS3 Sharpening Images

Using Gaussian Blur to sharpen hair


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Photoshop CS3 Sharpening Images

with Deke McClelland

Video: Using Gaussian Blur to sharpen hair

Alright. We are going to end things by taking a look at how you go about sharpening for output, where a low frequency portrait shot is concerned. And the answer is it turns out to be the exact same way. You sharpen using the exact same settings and the exact same logic that we have discussed so far. But I just want to prove that it is true and I want you to see how the whole multi-pass sharpening process shakes out where a low frequency portrait shot is concerned. Actually, the image that we are going to be working with here includes both low frequency and high frequency details.
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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 Gaussian Blur to sharpen hair

Alright. We are going to end things by taking a look at how you go about sharpening for output, where a low frequency portrait shot is concerned. And the answer is it turns out to be the exact same way. You sharpen using the exact same settings and the exact same logic that we have discussed so far. But I just want to prove that it is true and I want you to see how the whole multi-pass sharpening process shakes out where a low frequency portrait shot is concerned. Actually, the image that we are going to be working with here includes both low frequency and high frequency details.

The name of the image is Facebook 2525.PSD. If man is still alive, if Facebook still survives. And you can see that she is a kind of poking us. She is giving us a little poke here if you know whats up with Facebook. In fact the name of this Smart Object is "I poke U". This image comes to us incidentally from photographer Eva Serrabassa of iStockphoto.com; beautiful image and it's beautifully sharpened I might say as well. I didnt bother to sharpen this one for source because it looked to me like it already had been sharpened for source.

So instead I decided to focus on sharpening for detail and effect where this particular image is concerned. So here is the sharpening for detail. We are going to see that I have, as I say, the "I poke U" Smart Object and then there is an Edge Mask and the Edge Mask is mitigating the behavior of this High Pass filter and if you double-click on the High Pass filter, you can see that I am using a high Radius value that's ideal for sharpening a low frequency image when we are trying to account for detail here. I am going with a very high Radius value because this is a high resolution image.

So I'll go ahead and click Cancel in order to accept that modification. You could also see that the blending option has been set to Overlay. Now I also decided that because she is a dark haired person and there is a lot of dark details going on inside of her sweater for example, then I wanted to make those edges as crisp as possible. So I went ahead and applied a pass of Density Mask sharpening and to get to that, you need to dig inside of the Smart Objects. So double click on it to open up the Smart Object which contains a second level Smart Object right here.

If you were to double click on it, you would just get the background layer. There is no Camera RAW object inside of this image. And I am going to go ahead and zoom in more closely on her and you can see that I have a radical Smart Sharpen effect going on here. An Amount value of 500% and the Radius value of 3.0 pixels, Remove is set to Lens Blur, More Accurate of course is turned off because this is the portrait shot. It results in a radical sharpening effect, way too much, which is why I have assigned a big heaping-helping of a Density Mask right here.

So it is an inverted version of the red channel of course and I have gone ahead and darkened up the shadows considerably in order to protect the areas that should be smooth, the smooth details inside the image. But notice that the hair detail, there's a lot of harsh transition is going on and inside of the asweater as well. I was worried that was going to end up creating overly harsh transitions inside of these areas. So I will show you what I did. I am just going to go ahead and Alt-click or Option-click once again on that Filter Mask, in order to display the full color image.

If you are working along with me, I want you to go ahead and apply this step as well. With the Filter Mask active, I went up to the Filter menu and I chose Blur and then I chose Gaussian Blur and I just ever so slightly softened the transitions inside of this filter mask by entering a Radius value of two pixels and then clicking OK. Notice that actually helps out the hair detail; not only does it smooth over some of the overly harsh transitions inside of the sweater, but notice this is before and this is after.

You see how the hair is brightening up, so we are actually seeing more detail inside the hair than we were seeing before. And to just give you a sense of what kind of difference the Smart Sharpen effect makes, I will go ahead and turn it off for a moment. That's the original hair. Very dark. We are not getting a lot of detail inside of the highlights. This is what the hair looks like after we sharpen it. So we are getting a lot more detail inside of the highlights inside of that hair. So it is making a big difference to the overall sharpness of this image. Again, a little farther out now at the 50% zoom level. This is without the application of the Smart Sharpen filter, modified by the density mask of course, and this is with that filter. It makes a huge contribution to the image.

We did make a change, of course; we applied the Gaussian Blur filter. So lets go ahead and close and update the Smart Object. I am going to go to the File menu and choose the Close command and Photoshop is going to ask if I want to save the changes; I would click Yes on the PC or the Save button on the Mac and then it will go ahead and update the larger composition. Just to give you a sense of what kind of contribution our change made to the overall composition, this is before and this is after. And that is just by virtue of the fact that we applied the Gaussian Blur filter.

So that is the craziness of this, is that we just applied Gaussian Blur. This is before- before we applied Gaussian Blur, we had less sharpness in this image. After we applied Gaussian Blur to the mask, we had more sharpening. The amazing irony of blurring and sharpening inside Photoshop. This is our use neutral composition. In the next exercise, we are going to prepare the image for print and then after that we are going to sharpen it both for commercial reproduction and for inkjet output. Please join me.

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