Auto align/rotate scanned images in Photoshop?

Question

Is there a way to automatically rotate/align scanned images so they are perfect 90 degrees.

For instance, you scan an image it's slightly crooked, like 88 degrees but the image is rectangular, so you have to modify it manually. Does Photoshop have inherent intelligence to auto-correct? Snap to perfect 90 degree fit?

Answer 1

I suspect this will actually be very difficult to achieve because unless you are taking photographs of static objects where very little changes (for example in a Photo Tent) the images you will then ultimately be scanning will be too varied to apply any sort of firm rules of how they should be aligned.

However, there is a sort of Macro / Action function in Photoshop that will allow you to perform an automated task. This may help in some way.

Check out:

http://www.websitetemplatedesign.com/oscommerce_tutorials/tutorial_260.shtml

Answer 2

Yes. Use the ruler tool, then choose Rotate Image... Arbitrary. The correct rotation will automatically be entered.

Got this from: http://graphicssoft.about.com/cs/photoshop/qt/straighten.htm