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Image processing help

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Jerry James
Jerry James 2011-2-7
关闭： MATLAB Answer Bot 2021-8-20
How to compare two images ?
  1 个评论
Andreas Goser
Andreas Goser 2011-2-7
Image comparison is a very wide field and to answer the question one needs two example pictures.

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回答（2 个）

Arturo Moncada-Torres
Indeed, I agree with Andreas Goser: image comparison is a very wide field. However, as a first approach, a very simple but always useful and powerful way of comparing two images is comparing their histograms.
doc imhist
Just remember that for a B&W image, you will get the histogram of the levels of gray. If you have an RGB image, you need to decompose it in each of the three layers (red, green, and blue) and obtain the histogram of each of them.
Hope it helps!
Harsha Vardhan Rao Avunoori
Well you have asked a real broad question :)
Arturo has mentioned you a good way of comparing two images.
You can also try correlation approach to compare two images.

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