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Photoshop Elements 11 Essentials: 02 Editing and Retouching Photos
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Reducing noise


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Photoshop Elements 11 Essentials: 02 Editing and Retouching Photos

with Jan Kabili

Video: Reducing noise

When you shoot with a digital camera many of your photos will suffer from digital noise. There are two flavors of digital noise, as I explained in an earlier movie about reducing noise out in the Expert edit workspace using the Noise Reduction filter. The two kinds of digital noise are Color Noise, which looks like little specs of color, and Luminance Noise, which looks like little grayscale specs. You can reduce both kinds of noise here in the Camera Raw workspace in the Detail tab. And the advantage of doing it here as opposed to in the Expert Edit workspace is that everything you do here in Camera Raw is nondestructive of the original image, so you can always reopen a raw file and tweak your Noise Reduction sliders.
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  1. 6m 14s
    1. Welcome
      1m 10s
    2. Using the exercise files
      1m 30s
    3. Overview of the editing workspaces
      3m 34s
  2. 43m 14s
    1. Touring the interface
      4m 21s
    2. Making the most of the tools in Elements
      4m 6s
    3. Arranging the panels
      4m 32s
    4. Zooming and panning
      4m 3s
    5. Viewing multiple photos
      3m 51s
    6. Undoing
      5m 15s
    7. Cropping
      3m 46s
    8. Resizing
      7m 18s
    9. Saving images and examining formats
      6m 2s
  3. 19m 23s
    1. Understanding layers
      7m 59s
    2. Managing layers in the Layers panel
      4m 33s
    3. Creating new layers
      6m 51s
  4. 38m 28s
    1. Why use selections?
      4m 20s
    2. Selecting with the marquee tools
      3m 56s
    3. Selecting with the lasso tools
      6m 40s
    4. Selecting by color and tone
      6m 22s
    5. Refining a selection
      4m 51s
    6. Selecting hair
      5m 42s
    7. Hiding content with a layer mask
      6m 37s
  5. 46m 54s
    1. Why use adjustment layers?
      5m 15s
    2. Adjusting color with a Hue/Saturation adjustment layer
      4m 32s
    3. Correcting lighting with a Levels adjustment layer
      3m 32s
    4. Adjusting part of an image with an adjustment layer
      5m 19s
    5. Exploring auto adjustments
      3m 55s
    6. Improving shadows and highlights
      2m 14s
    7. Removing a color cast
      1m 47s
    8. Fine-tuning with Color Curves
      3m 16s
    9. Converting to black and white
      2m 26s
    10. Correcting camera distortion
      5m 32s
    11. Reducing noise
      2m 56s
    12. Sharpening
      6m 10s
  6. 20m 51s
    1. Creating a panorama
      5m 6s
    2. Merging bracketed exposures
      6m 0s
    3. Removing people from a scene
      5m 25s
    4. Combining group shots
      4m 20s
  7. 29m 24s
    1. Removing blemishes
      3m 42s
    2. Reducing wrinkles and circles
      4m 16s
    3. Enhancing eyes
      5m 19s
    4. Removing red-eye
      3m 15s
    5. Adjusting skin tone
      2m 21s
    6. Removing dust spots
      4m 7s
    7. Removing content
      6m 24s
  8. 52m 36s
    1. What is Camera Raw?
      5m 18s
    2. Using the latest Camera Raw controls
      3m 16s
    3. Camera Raw basics
      6m 22s
    4. Making use of the histogram
      3m 45s
    5. Setting white balance
      3m 44s
    6. Adjusting lighting
      4m 28s
    7. Adjusting color saturation
      2m 9s
    8. Cropping and straightening
      3m 58s
    9. Reducing noise
      3m 33s
    10. Sharpening
      3m 38s
    11. Synchronizing edits to multiple photos
      3m 36s
    12. Outputting from Camera Raw
      6m 14s
    13. Using Camera Raw with JPEGs
      2m 35s
  9. 48s
    1. Next steps
      48s

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Photoshop Elements 11 Essentials: 02 Editing and Retouching Photos
4h 17m Beginner Nov 07, 2012

Viewers: in countries Watching now:

Go beyond the automatic editing features in Adobe Photoshop Elements and find out how to make sophisticated edits using the Expert Edit mode. In this course, author, teacher, and photographer Jan Kabili explores the core features of the Expert Edit mode, from making exposure adjustments, retouching, and compositing images, to adding text. The course also takes a close look at adjusting photos with Adobe Camera Raw, included with Elements 11.

Topics include:
  • Arranging the panels and interface
  • Cropping and resizing photos
  • Creating new layers
  • Refining selections
  • Hiding content with a layer mask
  • Using adjustment layers
  • Correcting color, lighting, and contrast
  • Converting a color photo to black and white
  • Creating a panorama from multiple photos
  • Retouching blemishes and wrinkles
  • Making adjustments in Camera Raw
Subjects:
Photography Retouching
Software:
Photoshop Elements Elements
Author:
Jan Kabili

Reducing noise

When you shoot with a digital camera many of your photos will suffer from digital noise. There are two flavors of digital noise, as I explained in an earlier movie about reducing noise out in the Expert edit workspace using the Noise Reduction filter. The two kinds of digital noise are Color Noise, which looks like little specs of color, and Luminance Noise, which looks like little grayscale specs. You can reduce both kinds of noise here in the Camera Raw workspace in the Detail tab. And the advantage of doing it here as opposed to in the Expert Edit workspace is that everything you do here in Camera Raw is nondestructive of the original image, so you can always reopen a raw file and tweak your Noise Reduction sliders.

Let's take a look at the Detail panel by clicking the Detail tab at the top of the Basic panel. Down here are the Noise Reduction sliders. By default, the Color Noise Reduction slider is set to 25, since many digital photos have color noise and this automatically takes care of it in some instances. So that you can see the color noise in this image, go ahead and drag that Color slider over all the way to the left so it's at zero. And then go up to the Zoom Tool and double-click the Zoom Tool, which is the shortcut for zooming into a 100% view, because you really can not judge digital noise unless you're at 100% or one-to-one view.

Then I'll get my Hand Tool, right next to the Zoom Tool, and with that tool I'm going to click and drag in the image to an area where the digital noise is really obvious, like this windowsill. So to reduce this kind of color digital noise, I'll take the Color slider and I'll move it over to the right. And even before I get to the default of 25, I've almost eliminated the color noise. When I do drag the Color Noise slider over to the right, that can sometimes drain some of the color from the details in the image, and so the Color Detail slider automatically activates and goes to its default value of 50.

And of course you're free to move that Color Detail slider, too, if you need to bring even more color back into the details in the image. As you can see here there's still some noise in the image. This is luminance noise, grayscale noise. To reduce that I'll use the Luminance slider. I'll drag the Luminance slider to the right until I've reduced or eliminated some of that luminance noise. Now I'm never going to get it to go away altogether, because if I do the image will get just too smooth and it will start to look unnatural, like this. If I click and drag up to this area, I think you can better see what I mean, this just doesn't look real anymore.

So I'll take that Luminance slider and drag it back. I hardly ever drag Luminance past 50 or 60. Let's put it down maybe around here in this case, striking a compromise between the amount of luminance noise in the image and enough detail and contrast in the image to make it look believable. Now I do have a couple of other sliders here, the Luminance Detail slider and the Luminance Contrast slider, which I can use to try to bring back lost detail and contrast into the image. Both these sliders become activated as soon as you start moving the Luminance slider over to the right, and then you can take these sliders and drag them slightly to the right to try to recover some of the detail and contrast that you lose when you increase the Luminance slider.

Now remember you can't really judge the result unless you're looking at the image at 100% view. So at 100%, at this point, I would take the Hand Tool and I would just pan around in the image to make sure that everything looks good to me. And when I'm satisfied with my Noise Reduction compromise, then I'll take the image back to fit on the screen by double-clicking the Hand Tool. So that's how you can use the Noise Reduction sliders in the Camera Raw workspace to reduce some of the color and luminance noise that's a result of shooting digitally.

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