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Cropping to a specific size and resolution using Canvas Size

From: Inkjet Printing for Photographers

Video: Cropping to a specific size and resolution using Canvas Size

In the last movie, you saw me trying to size this image to 8 x 10 and running into the problem of the image's aspect ratio. This image does not actually scale to a perfect 8 x 10 because it's too wide. This is a 3:2 aspect ratio, so it doesn't fit into a perfect 8 x 10 inch size. If I go here and set my Width to 10, my Height drops to 6.6. If you are building a custom mat, that's fine, but if you're trying to fit an image to a prebuilt frame or a prebuilt matte size, then you may want to go to a very, very specific size, and that might mean that you have to crop your image.

Cropping to a specific size and resolution using Canvas Size

In the last movie, you saw me trying to size this image to 8 x 10 and running into the problem of the image's aspect ratio. This image does not actually scale to a perfect 8 x 10 because it's too wide. This is a 3:2 aspect ratio, so it doesn't fit into a perfect 8 x 10 inch size. If I go here and set my Width to 10, my Height drops to 6.6. If you are building a custom mat, that's fine, but if you're trying to fit an image to a prebuilt frame or a prebuilt matte size, then you may want to go to a very, very specific size, and that might mean that you have to crop your image.

That's the only way we are going to get this image to fit in the size that we want is to drop some off the edges. There are a lot of different ways of doing this. The Crop tool is probably the one that immediately comes to your mind, but in this movie I want to show you a different way. Before we get to cropping though, I want to set my size properly. If I have my image set to 10 x 6, that's going to complicate things a little bit in my cropping operation, because my height is already too small. So I am going to go ahead and just put the smallest dimension at the size that I want. So we are going to make sure that Height is set to 8, so I can see that where I am probably going to want to crop is off of my Width.

Now I could do a more complicated crop. I could actually come in here and crop whatever I wanted out of the middle, but my goal here is to take just as little as possible out of the image. I want to preserve as much of the image as I can. So I am going to keep the full height and take some off of the edges. This is also a case where I can afford to lose some things off the edges because there's not as much interesting or relevant image data. There might be other times when you need to crop differently, crop the tops and bottoms or crop maybe in an L-shaped, take some off the top and some off of one side and leave the other edges alone.

I am going to say OK and go up here to Image > Canvas Size. Canvas Size gives you a way of cropping, and what I like about it is its kind of an automatic way of cropping. If you're needing to very quickly go through a bunch of images and chop them down to a particular size, Canvas Size is probably a faster way of doing that than the Crop tool. What I can see here is the size of the total canvas that I've got here. In this case, it matches the image size. So I am just going to knock width down to 10 inches. The question is, where is it going to chop those extra 2 inches off of? That's controlled by this Anchor mechanism here.

Right now, it's saying that it's going to anchor the image at the center and take off space around the edges to get my canvas down to the size that I want. So let's just watch what happens if I hit OK. It's warning me that the canvas size is smaller than where I'm starting, so clipping, or in this case, cropping, will occur. I am going to tell it not to show that to me again. And there, you can see what happened. Let me undo that. Before, after. So it's taken it just right off the edges. Again, this is a really quick way of just getting a center crop.

You can even store this is an action and batch process it on images if you needed to. But let's consider something here. This is just black over here. This is actually some wood texture over here. I am losing equal amounts of both. But I wonder if maybe the wood texture is a little bit more interesting. Maybe I should try and preserve and just lose some of this empty black that I have got over here. So I am going to up here to Image > Canvas Size. I am going to set my Canvas Size back to 10, but this time I am going to anchor over here.

So this is telling me that all of the information that's going to be lost is going to be coming from the left side, so when I hit OK, aha! Now I get this. Before, after. If you watch this space in here--take note of all this detail here--you can see I haven't lost any. Over here, you can see there is this curtain and a little bit of window. That's all going away. It's taking a full 2 inches off of there. So that has done what I was hoping would happen. It preserved this at the expense of the stuff that was over here. But I think I actually like the center crop better because it left the hands in the middle of the image, and this image was composed around the hands being a strong central element.

So I think if I was going to crop this way, I would keep my center anchor point, dial in my final print size, and hit OK. Again, not a tremendous amount of cropping control here, but it's fast. If you know that all you need is to crop, say, a square out of the center of a bunch of images, Canvas Size is a great way to do it. Canvas Size is also a way that you can enlarge the canvas beyond the original size of your image, and we'll see some uses for that later in this chapter.

Show transcript

This video is part of

Image for Inkjet Printing for Photographers
Inkjet Printing for Photographers

68 video lessons · 13369 viewers

Ben Long
Author

 
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  1. 9m 18s
    1. Welcome
      1m 50s
    2. Exploring why we print
      4m 3s
    3. Understanding what you need for this course
      3m 25s
  2. 13m 29s
    1. Why inkjet printing?
      4m 36s
    2. Understanding ink types: Dye vs. pigment
      4m 26s
    3. Discussing considerations for black and white
      1m 48s
    4. Reviewing the features
      2m 39s
  3. 1h 1m
    1. Printing and your workflow
      3m 3s
    2. Printing black-and-white photos
      6m 49s
    3. Understanding the histogram
      7m 37s
    4. Understanding what localized adjustments are used for
      2m 38s
    5. Explaining the histogram with a practical example
      6m 51s
    6. Making a localized adjustment in a practical example
      5m 30s
    7. Evaluating a localized adjustment in a practical example
      2m 29s
    8. Refining a localized adjustment for effect
      13m 36s
    9. Making a gradient adjustment
      6m 47s
    10. Paying attention to viewing conditions
      4m 49s
    11. Summing up
      1m 50s
  4. 54m 36s
    1. Understanding pixels, printer dots, and resolution
      2m 44s
    2. Understanding resolution
      2m 33s
    3. Defining resampling and interpolation
      3m 41s
    4. Understanding where resizing fits into your workflow
      2m 12s
    5. Defining native printer resolution
      2m 39s
    6. Understanding the relationship between viewing distance and print size
      2m 1s
    7. Reducing image size in Photoshop
      9m 11s
    8. Cropping to a specific size and resolution using Canvas Size
      4m 34s
    9. Cropping to a specific size and resolution using the Crop tool
      5m 15s
    10. Enlarging an image in Photoshop
      7m 7s
    11. Creating a triptych
      3m 55s
    12. Creating a triptych using Automator on a Mac
      4m 5s
    13. Exploring the aesthetics of print size
      4m 39s
  5. 1h 17m
    1. Understanding how sharpening works
      3m 18s
    2. Sharpening in JPEG mode
      1m 26s
    3. Exploring sharpening workflows
      3m 47s
    4. Sharpening in Camera Raw
      6m 17s
    5. Looking at noise reduction
      1m 46s
    6. Sharpening output with Smart Sharpen
      11m 52s
    7. Understanding selective sharpening
      4m 25s
    8. Sharpening through an edge mask
      7m 17s
    9. Reviewing high-pass sharpening
      4m 30s
    10. Applying aggressive sharpening
      8m 53s
    11. Exploring advanced sharpening techniques
      9m 7s
    12. Exploring the Print dialog
      11m 35s
    13. Proofing at smaller sizes
      3m 3s
  6. 53m 9s
    1. Exploring how color works
      2m 5s
    2. Reviewing color models
      2m 56s
    3. Defining gamut and color space
      9m 55s
    4. Reviewing when colors go out of gamut
      4m 54s
    5. Configuring Photoshop's color settings
      5m 47s
    6. Changing color space in Camera Raw
      4m 7s
    7. Working in an advanced color space
      6m 13s
    8. Assigning a color space in Photoshop
      2m 20s
    9. Correcting a color image
      9m 17s
    10. Printing a color image
      3m 30s
    11. Evaluating the print
      2m 5s
  7. 34m 46s
    1. What is color management?
      4m 16s
    2. Profiling a monitor
      8m 45s
    3. Evaluating a monitor profile
      4m 37s
    4. Exploring paper profiles
      5m 17s
    5. Understanding soft proofing
      11m 51s
  8. 24m 33s
    1. Understanding how paper quality affects the appearance of black in prints
      3m 26s
    2. Looking at third-party papers
      3m 46s
    3. Looking at paper finish
      3m 44s
    4. Understanding paper traits
      6m 31s
    5. Discussing paper choice and presentation
      7m 6s
  9. 23m 18s
    1. Printing a black-and-white image
      11m 45s
    2. Printing a color image
      11m 33s
  10. 1m 16s
    1. Goodbye
      1m 16s

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