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Photoshop Elements 8 for Windows Essential Training
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Reducing digital noise


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Photoshop Elements 8 for Windows Essential Training

with Jan Kabili

Video: Reducing digital noise

When you shoot with a digital camera, it's inevitable that you'll get some digital noise in your photographs. This is most likely to happen when you're shooting with a high ISO or when there are a lot of dark or shadow areas in your photographs. I am going to zoom into this image by selecting the Zoom tool in the toolbar and then clicking several times in the image so that you can see some of the digital noise here. These colored pixels represent color digital noise and then there can also be some black-and-white digital noise. I'm going to hold the Spacebar down to switch to the Hand tool temporarily and click-and-drag in the image to this area down here where you can see JPEG artifacts, squares of pixels, which are caused by compressing image as a JPEG in the camera.
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  1. 10m 20s
    1. Welcome
      1m 13s
    2. Using the exercise files
      1m 35s
    3. Launching the Welcome screen
      3m 12s
    4. Touring Elements
      4m 20s
  2. 29m 45s
    1. Working with catalogs
      3m 16s
    2. Getting photos from your hard drive
      2m 49s
    3. Changing thumbnail display options
      4m 35s
    4. Getting photos from a camera or card
      9m 43s
    5. Getting photos from a CD/DVD or an external drive
      4m 46s
    6. Getting photos from a scanner
      4m 36s
  3. 43m 15s
    1. Touring the Organizer interface
      5m 44s
    2. Viewing photos
      5m 11s
    3. Selecting photos
      2m 58s
    4. Rotating photos
      2m 39s
    5. Renaming photos
      2m 7s
    6. Fixing photo dates
      2m 0s
    7. Hiding and deleting photos
      5m 24s
    8. Stacking photos
      8m 9s
    9. Moving files
      4m 43s
    10. Backing up catalogs
      4m 20s
  4. 52m 4s
    1. Applying keyword tags
      8m 33s
    2. Finding photos by keyword tags
      3m 41s
    3. Finding photos with the Keyword Tag Cloud
      1m 56s
    4. Applying Smart Tags
      4m 29s
    5. Automatically tagging people in photos
      7m 54s
    6. Applying star ratings
      2m 48s
    7. Organizing photos in albums
      4m 10s
    8. Organizing photos in Smart Albums
      6m 44s
    9. Finding photos with Text Search
      4m 31s
    10. Finding photos from the Find menu
      5m 10s
    11. Finding photos in the Timeline
      2m 8s
  5. 29m 18s
    1. Working with photos in Full Screen view
      11m 12s
    2. Viewing slideshows in Full Screen view
      4m 10s
    3. Comparing photos
      5m 22s
    4. Using Date View
      3m 41s
    5. Mapping photos
      4m 53s
  6. 56m 46s
    1. Applying Photo Fix options in the Organizer
      8m 22s
    2. Touring the Quick Fix workspace in the Editor
      6m 12s
    3. Applying Quick Fix controls
      11m 10s
    4. Using Quick Fix tools
      11m 2s
    5. Working in Guided Edit in the Editor
      4m 45s
    6. Fixing group shots in Guided Edit
      5m 57s
    7. Applying the Scene Cleaner in Guided Edit
      9m 18s
  7. 1h 12m
    1. Touring the Full Edit interface
      5m 5s
    2. Opening files in Full Edit
      2m 13s
    3. Working with tabbed documents
      6m 57s
    4. Using tools
      6m 11s
    5. Setting editing preferences
      4m 22s
    6. Adjusting color settings
      4m 18s
    7. Using Undo History
      5m 56s
    8. Zooming and navigating
      6m 30s
    9. Creating a blank file
      5m 58s
    10. Photo resizing and resolution
      9m 59s
    11. Using the Recompose tool
      3m 8s
    12. Enlarging the canvas
      3m 49s
    13. Saving files
      7m 47s
  8. 17m 36s
    1. Understanding layers
      3m 28s
    2. Working in the Layers panel
      4m 51s
    3. Combining images with layer masks
      9m 17s
  9. 19m 54s
    1. Understanding selections
      2m 27s
    2. Manual selection tools
      7m 6s
    3. Automatic selection tools
      6m 27s
    4. Modifying and saving selections
      3m 54s
  10. 1h 0m
    1. Cropping and straightening
      3m 49s
    2. Applying a Shadows/Highlights adjustment
      2m 54s
    3. Applying adjustment layers
      7m 53s
    4. Adding a Levels adjustment layer
      4m 12s
    5. Merging multiple exposures
      6m 33s
    6. Adding a Hue/Saturation adjustment layer
      3m 54s
    7. Adjusting with Color Curves
      3m 39s
    8. Removing a color cast
      3m 21s
    9. Correcting skin tone
      2m 34s
    10. Reducing digital noise
      4m 4s
    11. Sharpening photos
      7m 42s
    12. Working with raw photos
      9m 52s
  11. 24m 50s
    1. Using the Smart Brush tool
      7m 52s
    2. Using the Detail Smart Brush tool
      4m 26s
    3. Dodging and burning
      2m 18s
    4. Healing wrinkles and blemishes
      5m 17s
    5. Removing content with the Clone Stamp tool
      3m 41s
    6. Removing red-eye
      1m 16s
  12. 31m 3s
    1. Applying filters
      5m 8s
    2. Adding effects
      3m 16s
    3. Running automated actions
      1m 51s
    4. Using layer styles
      6m 6s
    5. Using shapes
      8m 12s
    6. Using the Cookie Cutter tool
      3m 13s
    7. Converting color to black and white
      3m 17s
  13. 9m 29s
    1. Creating text
      5m 8s
    2. Editing text
      2m 59s
    3. Warping text
      1m 22s
  14. 38m 50s
    1. Making a photo book
      8m 26s
    2. Making a photo collage
      9m 0s
    3. Creating a slideshow
      11m 25s
    4. Stitching a photo panorama
      4m 3s
    5. Preparing images for the web
      5m 56s
  15. 33m 54s
    1. Printing photos
      2m 58s
    2. Printing contact sheets and picture packages
      4m 58s
    3. Sending photos by email and Photo Mail
      5m 57s
    4. Burning photos to CD/DVD
      1m 17s
    5. Ordering prints and books
      1m 59s
    6. Signing up for Photoshop.com
      3m 15s
    7. Sharing photos online at Photoshop.com
      7m 40s
    8. Backing up and synchronizing online
      3m 40s
    9. Getting inspiration from Adobe.com
      2m 10s
  16. 26s
    1. Goodbye
      26s

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Photoshop Elements 8 for Windows Essential Training
8h 50m Beginner Sep 23, 2009

Viewers: in countries Watching now:

Photoshop Elements 8 for Windows Essential Training highlights the important features of this comprehensive image organization and photo enhancement application. Photographer Jan Kabili shows how to use Photoshop Elements to organize and edit photos, build photos into projects like slideshows and photo books, and share photos with family and friends. Jan explains how to train Photoshop Elements 8 to recognize and tag faces, use the Smart Brush for targeted adjustments, and share photos using Adobe's online service, photoshop.com. She also dives deep into the application's editing tools, which rival those of the full product, Photoshop, in their ability to take snapshots and turn them into great photos. Exercise files accompany the course.

Topics include:
  • Finding photos by keywords, tags, and ratings
  • Mapping photos
  • Applying Photomerge Exposure in Guided Edit
  • Adding adjustment layers to correct a photo's tone and color
  • Reducing digital noise in photos
  • Creating a photo slideshow with audio and transitions
  • Preparing photos for the web
Subject:
Photography
Software:
Photoshop Elements Elements
Author:
Jan Kabili

Reducing digital noise

When you shoot with a digital camera, it's inevitable that you'll get some digital noise in your photographs. This is most likely to happen when you're shooting with a high ISO or when there are a lot of dark or shadow areas in your photographs. I am going to zoom into this image by selecting the Zoom tool in the toolbar and then clicking several times in the image so that you can see some of the digital noise here. These colored pixels represent color digital noise and then there can also be some black-and-white digital noise. I'm going to hold the Spacebar down to switch to the Hand tool temporarily and click-and-drag in the image to this area down here where you can see JPEG artifacts, squares of pixels, which are caused by compressing image as a JPEG in the camera.

The Reduce Noise filter can help with all of these problems. Color digital noise, black-and- white digital noise, and JPEG artifacts. I am going to go back to 100% view by double-clicking the Zoom tool in the toolbar, and then I'll apply the Reduce Noise filter, going up to the Filter menu, down to the Noise category and over to Reduce Noise. I'm going to move this dialog box over by clicking in its title bar and dragging to the right. And now I'll be able to see a preview of the image at 100% over here, as I choose settings here in the Reduce Noise dialog box.

I'll also be able see a preview here in this nice large preview area inside the dialog box itself. I'm going to zoom in on this image by clicking the plus sign underneath the preview and then I'll click in the image and drag until I see the seal. The way that the preview works is that when I have my mouse held down like this, I can see the noise and the artifacts in the image, but when I release my mouse Elements applies whatever settings are over here in the sliders, and by default those are already reducing some of the noise in the image.

But I'd like to make my own choices over here in the settings. So I'm going to start by dragging all these sliders back over to the left, to the defaults, and making sure Remove JPEG Artifact is unchecked. So now this is how the image looks without any noise reduction. Since there is a lot of color noise here, I'm going to start by dragging the Reduce Color Noise slider over to the right. And as I do, that color noise disappears out of the image. There is still noise here in the form of these gray and black pixels, but that I can reduce by going to the Strength slider and dragging it to the right.

If I want an even softer image with less noise, I can get the Preserve Details slider, which automatically moved over when I increase the Strength, and drag that to the left. I want to be careful not to make the image too soft or blurry by doing that, but I keep my eye not only on the zoomed in view here, but also on the 100% view over here. I think that looks pretty good right now. Finally I want to reduce these squares of JPEG artifacts here. So I'm going to check Remove JPEG Artifact. It didn't do a great job but it did reduce them slightly.

Now I'm going to take this preview back to 100% by clicking on the minus symbol here and to get a before and after view I'll move into the image, I'll click and hold and that's how things were and then I'll release my mouse and that's how they are now. It's a subtle difference, but I think it's one that makes the image look better. So then I'll click OK to accept those changes in the image here in the document window. If I want even more noise reduction at this point I can go back up to the Filter menu and notice that the first choice here is now the Reduce Noise Filter.

That's because the last filter that I used only shows up at the top of this list of filters. So I could choose Reduce Noise here and that would double the noise reduction effect in the image. I think that's a little bit much. It's making image too soft and I'm losing detail in the seals' faces. So I'm going to go up to the Undo button and click Undo, so I just have one level of noise reduction. So if you're shooting photos with a high ISO in your camera or in a dark environment when you're most likely to pick up digital noise, then give the Noise Reduction filter a try.

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