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Photoshop CS3 Sharpening Images

Sharpening a background


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Photoshop CS3 Sharpening Images

with Deke McClelland

Video: Sharpening a background

Alright. So the first step in adding depth of field to an image is to select the background. Presumably, the image was shot properly and it's the background tha'ts out of focus. So you want to select the background and sharpen the background using in our case Unsharp Mask. Now I am using Unsharp Mask just because its the simpler approach; you could use Smart Sharpen set to Lens Blur, but in my experience it really doesn't make much difference. Alright. So here's what I want to do. We are working inside the Man with columns.PSD document that's found inside at the 07_For_Effect folder and I am going to go to the Channels palette and I am going to load- notice that I have gone ahead and created a mask in advance. That maska the foreground away from the background.
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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

Sharpening a background

Alright. So the first step in adding depth of field to an image is to select the background. Presumably, the image was shot properly and it's the background tha'ts out of focus. So you want to select the background and sharpen the background using in our case Unsharp Mask. Now I am using Unsharp Mask just because its the simpler approach; you could use Smart Sharpen set to Lens Blur, but in my experience it really doesn't make much difference. Alright. So here's what I want to do. We are working inside the Man with columns.PSD document that's found inside at the 07_For_Effect folder and I am going to go to the Channels palette and I am going to load- notice that I have gone ahead and created a mask in advance. That maska the foreground away from the background.

Now I am going to tell you two things about this mask. First of all, I will show you how to make it in the next exercise, if you are interested, but if you really want to know how to make professional quality masks inside Photoshop then checkout my Photoshop CS3 Channels and Masks series, which tells you in more detail then you would ever imagine how to go about making very accurate masks inside the Photoshop. Alright. Lets return to the RGB image and we will load the mask for now by pressing the Ctrl key or the Command key on the Mac and clicking on the Mask channel in order to load it as a selection outline.

Now I'll go to the Layers palette and what I want to do is go up to the Filter menu and choose Sharpen and then choose Unsharp Mask and these are the settings that I want you to apply. Once again, they seem like completely over the top settings, but we are going to go ahead and dial them back later. For now we want to keep them at their maximum values so that we have the opportunity to dial them back. So enter an Amount value of 500%, a Radius value of 4.0 pixels for this specific image. Once again this is a resolution dependent value. If you have a high resolution image, you want to use a higher Radius value.

In my case, I am working with about 4 to 5 mega pixel image if you are working with a 10 mega pixel image, an original digital photograph from a modern camera, then you do the math. It would be more like a Radius value of 8 pixels and then Threshold definitely leave it set to 0 and click OK in order to accept that modification. Now that's obviously over the top; we need to mix this effect with the underlying original and we are going to do that by adjusting the blend settings right here. So double click on the Blending icon to the right of the words Unsharp Mask and I want you to change the mode as always to Luminosity and I want you to reduce the Opacity value to 33%.

Now I am using 33%, not because its a wildly magical number. First of all it's very easy to enter. You just hit 33 in a row, but also it's about a 3rd of the original effect and you have the option of bumping it up, if you decide you need more sharpening or taking it down if you need less, but roughly a third of that original sharpening pass works out pretty nicely for a lot of images actually. I wont go so far as to say most, but a lot of images. And you will want to modify that to taste of course. Click OK in order to accept that modification and there we go.

Now there is a problem at this point, I am going to go ahead and zoom on into this image. The problem that I have, lets zoom even further, is that we have a obvious halo around this gentleman's shoulder and around his head as well. Anything basically. Notice at the top of his head over here in the upper right portion of the image. We have got quite the halo around his ear, around his other shoulder and we don't want that halo. I don't want this big terrific halo around the guy because the whole idea here at this point, is that I am trying to merge him with his background a little more, so that the background and foreground look a little more uniform.

This halo that's circling him makes him look more distant from the background. So I need to get rid of that halo. So here's how this is going to work. In the next exercise, I am going to show you how I made this mask in the first place, the mask that we just loaded a moment ago. In the exercise after that I am going to show you how to get rid of this halo around the gentleman here. If you care about how I created this original mask then stay tuned for the next exercise. If you don't and you just want to get through this project, then skip ahead an exercise. Either way I will see you shortly.

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