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Photoshop Elements 6 for Mac Essential Training
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Adjusting perspective and correcting camera distortion


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Photoshop Elements 6 for Mac Essential Training

with Ted LoCascio

Video: Adjusting perspective and correcting camera distortion

With this movie, I would like to show you how to change an image's perspective using the Correct Camera Distortion feature in Elements. I'm currently in the Bridge application and I'm viewing the exercise files folders. What I would like to do is scroll down in the Content panel to the Chapter 11 folder, double-click on that to open it up, then double-click on the camera distortion folder and double-click the Millennium Park image to open it up inside the Elements' Editing workspace. So here we're, we have an image of some buildings in Millennium Park in Chicago. So basically, when I took this picture I was pointing the camera upwards somewhat. We can see the stretch of the buildings here; they are going in slightly different direction because of the way I took the picture.
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  1. 2m 22s
    1. Welcome
      1m 2s
    2. Using the example files
      1m 20s
  2. 12m 1s
    1. Understanding Photoshop Elements
      2m 10s
    2. Using the Welcome screen
      2m 33s
    3. Importing photos from a digital camera
      7m 18s
  3. 1h 1m
    1. Viewing and selecting images
      2m 1s
    2. Creating and saving a custom workspace
      5m 29s
    3. Rotating images in Bridge
      3m 20s
    4. Renaming images in Bridge
      5m 34s
    5. Adding keywords to images
      7m 38s
    6. Applying ratings to images
      5m 17s
    7. Labeling images
      5m 17s
    8. Searching for images
      6m 38s
    9. Creating Collections
      2m 50s
    10. Sorting images with the Filter panel
      6m 36s
    11. Using image stacks
      7m 2s
    12. Hiding images
      4m 6s
  4. 31m 55s
    1. Opening images from Bridge
      2m 24s
    2. Working with palettes and the Palette Bin
      4m 53s
    3. Using the Project Bin
      6m 44s
    4. Zooming and scrolling
      8m 1s
    5. Fixing mistakes with Undo and Redo
      5m 3s
    6. Saving versions
      4m 50s
  5. 49m 38s
    1. Opening and viewing images in the Quick Fix mode
      6m 8s
    2. Understanding Auto Color and making tonal adjustments
      8m 50s
    3. Using the Lighting sliders
      5m 19s
    4. Using the Color sliders
      7m 1s
    5. Applying Auto Red Eye Fix
      3m 31s
    6. Applying Auto Sharpen
      4m 25s
    7. Using the Guided Edit mode
      6m 19s
    8. Processing multiple files
      8m 5s
  6. 10m 22s
    1. Understanding image resolution
      3m 23s
    2. Resizing images
      6m 59s
  7. 17m 8s
    1. Applying Auto Crop and Auto Straighten
      6m 22s
    2. Using the Straighten and Crop tools
      4m 10s
    3. Changing the canvas size
      6m 36s
  8. 30m 32s
    1. Why make selections?
      6m 3s
    2. Using the Quick Selection tool
      8m 37s
    3. Using Refine Edge
      7m 15s
    4. Saving and loading selections
      8m 37s
  9. 25m 58s
    1. Working with the Layers palette
      9m 45s
    2. Using adjustment layers and masks
      8m 37s
    3. Applying transparency and blend mode adjustments
      7m 36s
  10. 40m 56s
    1. Removing a color cast
      5m 53s
    2. Correcting skin tone
      3m 38s
    3. Enhancing color with Hue/Saturation adjustments
      6m 37s
    4. Balancing contrast and color with Levels adjustments
      7m 10s
    5. Correcting dark or light areas with Shadow/Highlight Adjustments
      5m 17s
    6. Improving images with Color Curves adjustments
      5m 55s
    7. Converting color images to black and white
      6m 26s
  11. 54m 14s
    1. Using the Red-Eye Removal tool
      8m 1s
    2. Using the healing tools
      7m 42s
    3. Whitening teeth and eyes
      6m 20s
    4. Cloning to remove contents
      8m 14s
    5. Adjusting perspective and correcting camera distortion
      6m 10s
    6. Using Photomerge Group Shot
      6m 17s
    7. Using Photomerge Faces
      6m 4s
    8. Using Photomerge Panorama
      5m 26s
  12. 16m 1s
    1. Creating a clipping mask
      7m 25s
    2. Creating collages with gradient blending
      8m 36s
  13. 22m 15s
    1. Reducing noise
      8m 7s
    2. Sharpening with Unsharp Mask
      7m 16s
    3. Sharpening with Adjust Sharpness
      6m 52s
  14. 17m 54s
    1. Understanding Camera Raw
      1m 46s
    2. Opening Camera Raw images from Bridge
      6m 37s
    3. Applying tonal and color adjustments in Camera Raw
      6m 23s
    4. Saving raw images
      3m 8s
  15. 40m 41s
    1. Painting with the Filter Gallery
      8m 7s
    2. Creating a pencil sketch
      7m 40s
    3. Customizing images
      7m 59s
    4. Adding artwork with the Content palette
      9m 39s
    5. Building and saving a multi-page photo creation
      7m 16s
  16. 37m 5s
    1. Creating a slideshow
      6m 58s
    2. Creating a photo book
      9m 1s
    3. Creating a photo collage
      6m 58s
    4. Creating a greeting card
      6m 31s
    5. Creating a web photo gallery
      7m 37s
  17. 31m 6s
    1. Choosing color settings
      7m 1s
    2. Printing to an inkjet printer
      8m 13s
    3. Using Picture Package
      4m 33s
    4. Saving for the web
      5m 55s
    5. Attaching images to emails
      3m 6s
    6. Burning to CDs and DVDs
      2m 18s
  18. 56s
    1. Goodbye
      56s

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Photoshop Elements 6 for Mac Essential Training
8h 22m Beginner Sep 29, 2008

Viewers: in countries Watching now:

In Photoshop Elements 6 for Mac Essential Training, Ted LoCascio teaches casual photographers how to organize, edit, and share their digital image libraries using this powerful software package from Adobe. He tours the included Adobe Bridge application, used for importing and organizing photographs, and explores every feature of Elements itself. He demonstrates how to navigate the Elements workspace, which is used to correct and improve images, combine them into projects, and produce slideshows, photo books, web galleries, and more. Ted also explains how to get the most out of each editing mode, and shares tips for correcting, retouching, and sharpening photographs. Example files accompany the course.

Topics include:
  • Identifying photos by name, keyword, rating, and label
  • Locating photos with searches, filters, collections, and stacks
  • Using automated red-eye correction and sharpening tools
  • Making detailed color and tone corrections
  • Using Photomerge on faces and groups
  • Working with filters, artwork, and other image customizations
  • Scrapbooking
Subject:
Photography
Software:
Photoshop Elements Elements
Author:
Ted LoCascio

Adjusting perspective and correcting camera distortion

With this movie, I would like to show you how to change an image's perspective using the Correct Camera Distortion feature in Elements. I'm currently in the Bridge application and I'm viewing the exercise files folders. What I would like to do is scroll down in the Content panel to the Chapter 11 folder, double-click on that to open it up, then double-click on the camera distortion folder and double-click the Millennium Park image to open it up inside the Elements' Editing workspace. So here we're, we have an image of some buildings in Millennium Park in Chicago. So basically, when I took this picture I was pointing the camera upwards somewhat. We can see the stretch of the buildings here; they are going in slightly different direction because of the way I took the picture.

I would like to change this perspective, make things look a little bit more head-on, a little bit more straight. We can do that using the Correct Camera Distortion feature. Let me show you where that's added. Under the Filter menu, if you go down and choose Correct Camera Distortion, that brings up a separate dialog box. It's very, very large, takes up your whole screen here. You can see you have your own Zoom tool and your own hand tool inside of this dialog box. So it's sort of like a mini interface of its own. By default, it shows the grid and I recommend that you keep the grid turned on, because you can use it as you start changing the perspectives in here.

Now you can also use this tool in order to correct camera distortion, maybe if you were to take a picture indoors and the room is starting to look bowed. If that happens you can use this Remove Distortion slider up at the top in order to bow the image out or in, in order to correct that and compensate for that mistake. We don't have that problem here though. This is a separate kind of problem. This is a kind of problem were we're dealing with the perspective of an image. Now the perspective isn't slightly off. I was pointing the camera up but I want to make it as though the camera wasn't pointing up, make it so that the buildings appear more straight. That's somewhat difficult to do, but you can accomplish it here using the controls in the Perspective area of the dialog box.

So what I would like to do is, looking at these buildings and using the grid. I would like to align these edges of the buildings up by moving the Vertical Perspective slider to the left. Notice what happens, it starts changing the perspective of the image, rotating it inside the dialog box and the edge of the building is starting to line up with that vertical line in the grid, right here. That's what I'm looking at and also over here. I'm not worrying so much over here, just over here for now. So things are starting to look a little bit more straight. That's exactly what I want. I could try and change the Horizontal Perspective, but that's really not going to do anything. That's going to rotate it on the opposite axis, as you can see, spinning it around that way. I don't necessarily need to do that in order to fix this image. So you can turn that back to zero.

We also have a rotation controller here, which can allow us to rotate the image either way if we need to. We don't need to do that either so I'm just going to go ahead and type in zero in here. We also have Edge Extension. When I change the perspective, it scales the image a bit. So what I want to do is scale it back down in order to see the entire top of the image as well. Do you see that there? All right. So now we're seeing the top of the image again. That looks good to me. There's also some vignetting controls in here. This is not something that I'm actually going to use at this point, but you can create a type of vignette here where you're darkening the edges of the photograph or lightening them. It's something like you might want to do if you're actually correcting camera distortion for an image that was taken indoors and using this control up here.

If you need to you can make it less obvious that you've corrected it. I'm not actually going to do that here. So I'm going to go ahead and click OK. I have successfully changed the perspective of this image using that feature, but I'm still not totally satisfied. Obviously, we have to do some more work here. We have these transparent edges. This is now a transparent layer; it's no longer a locked background layer. By applying that adjustment using Correct Camera Distortion we no longer have a flattened image, and that's all right. There is no problem with that. We can always finish fixing this up and then flat it later should we choose to or just keep it as a transparent layer like this, either one.

So now that I have gotten this far, the next thing I want to do is turn on the grid here in the Document window. So let's go under the View menu, choose Grid. There is our grid, similar to what we saw in the Correct Camera Distortion dialog box, but now we're working inside of the Document window. Next thing I want to do is Free Transform this guy in order to straighten out the edges over here on this side. We've already got these corrected for the most part. I'm not going to worry too much about this building over here, even though I used it for reference I'm probably going to wind up cropping it off, because as you can see here we're going to need to crop this area on the right side and on the left.

So what I want to do now is actually choose the Free Transform command, which is Command+T, to bring that up. What I want to do is hold down the Command key and move a corner node. That allows me to Free Transform this guy. If I don't hold down the Command key then when I move a corner node, it's going to scale the entire image overall. I don't want to do that. I want to do this in a free form manner, holding down the Command key and clicking and dragging this node in the lower left. Notice when I'm doing that I'm using the grid now to try and line up this edge and this edge, and it's starting to look a lot better. That's exactly what I wanted to do.

I'm going to go ahead and commit to that. I think something else that we might want to do. Actually I'm going to do this again, Command+T. We can also scale this up a bit, because when we use the Correct Camera Distortion feature, it scales the image down in order to change that perspective. So I'm going to shrink it up just a little bit, apply that, then hide the grid, switch to the Crop tool and create a new crop. We go ahead and crop off the areas that we're not going to use, somewhere around there. That actually looks good. I'll apply that crop and we have now successfully changed the perspective of this image using the Correct Camera Distortion feature and doing a little bit of Free Transform afterwards on our transparent layer.

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