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Many thanks. &nbsp;Right on target. &nbsp;I think this solves my problem.
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Many thanks.  Right on target.  I think this solves my problem.

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Great. I hope it does the job. And thanks for the points and the &quot;A&quot;.<br />
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BTW, here's a site using the compare command to show differences between compression in JPG and PNG file formats, it illustrates what can be done: <a href="http://www.fractalus.com/info/png-jpeg.htm" rel="ugc">http://www.fractalus.com/info/png-jpeg.htm</a>
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Great. I hope it does the job. And thanks for the points and the "A".

BTW, here's a site using the compare command to show differences between compression in JPG and PNG file formats, it illustrates what can be done: http://www.fractalus.com/info/png-jpeg.htm [http://www.fractalus.com/info/png-jpeg.htm]

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I need a program that will tell me if two jpg photos are identical, and if not, how many pixels are different, and where those pixels are located. &nbsp;I assume that a program that could do this could work with various resolutions of jpg.
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I need a program that will tell me if two jpg photos are identical, and if not, how many pixels are different, and where those pixels are located.  I assume that a program that could do this could work with various resolutions of jpg.

Identical photos?

Websites use graphics to enhance information, assist navigation, and generally improve the user’s experience. To create those graphics, developers use any number of programs, like the Adobe Creative Suite (Photoshop and Flash have their own topics), the CorelDraw suite, Xara, Gimp, ACDSee, Serif, ULead and others.