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Chapter 3. Darkroom rTechniques with Pho... >  Automatically Crop and Straighten P...

Automatically Crop and Straighten Photos

Photoshop CS added a great automation tool called Crop and Straighten, which can be a lifesaver if you capture a photo with your scanner and then discover that the picture wasn’t squarely lined up on the scanner bed. You can also use this tool to fix digital photos you might have taken with the camera held askew. This one’s so easy that I’ll simply provide a list of the steps to carry out. There are no dialog boxes to mess with, or any other parameters to choose. Just follow these steps:

  1. Load the image you want to realign into Photoshop. I used the portrait shown at left in Figure 3.48. The feature works best with images that have clearly defined horizontal and vertical lines at the edges.

    Figure 3.48. At left, a slightly skewed photograph. At right, Photoshop CS has straightened the image out and cropped it to fit.

  2. Use Image > Canvas Size and add some space around the photo to give Photoshop some working room.

  3. Choose File > Automate > Crop and Straighten. Photoshop rotates your image to straighten it, then crops around the vertical and horizontal borders it used to align the image. What could be simpler?


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