how to compare images in picture boxes

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Hi, I am using Visual Studio 2008. I have an issue I can't wrap my mind aroung on how to solve it and I can't find a solution anywhere.

I have 15 picture boxes on a form, but I want to know how to compare the images in the picture boxes to see if they are the same picture.

The pictures are loaded from my projects resources file, and according to research done on articles on the internet, I cannot use the pictureBox1.imageLocation, because the images are lying in the resources file.

I have tried to compare the images byte by byte, but this is not very efficient.

Is there any other way to solve this?

Posted 15-Dec-10 23:00pm

Andrew797

Updated 15-Dec-10 23:10pm

Manfred Rudolf Bihy

v2

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Manfred Rudolf Bihy 16-Dec-10 5:11am

Edited for spelling and grammar.

Manfred Rudolf Bihy 16-Dec-10 5:16am

How are the pictures loaded into the picture boxes? Are you doing this in your own code? Then it shouldn't be to hard to track which image was placed into which picture box.

Andrew797 16-Dec-10 6:03am

firstly i load the images out of the resources file into an Image array. then in the buttons click event i declared a random class which chooses a random picture out of the array and places it in an individual picturebox. this process happens for every picturebox on my form.

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Abhinav S · Answer 1 · 2010-12-15T23:04:00

Solution 1

See here[^].

Honestly speaking, I dont know if this would offer any more efficieny than your code though - you could try it out.

Posted 15-Dec-10 23:04pm

Abhinav S

Updated 15-Dec-10 23:06pm

v2

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Manfred Rudolf Bihy 16-Dec-10 5:14am

My first thought was also to build a hash MD5 or whatever, but I totally agree with you that this is no more efficient than comparing them byte by byte. Take a 5 anyway :)

Abhinav S 16-Dec-10 5:27am

Thanks for the 5. Sorry could not help much with this - at least the code would look cleaner. :)