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Simple Comparing of Images

Adam Dockter
Guest
 
Posts: n/a
#1: Nov 16 '05
I have a couple questions about comparing images. I notice the imagelist
collection of images doesn't provide any comparison of images, and the
System.Drawing.Image.Equal function will not compare if two images are the
same.

Is there a simple and efficient way to compare if two images are the same?
This is all I want to do. I just want to add image objects to a collection
and make sure I am not adding any duplicate images. Is this possible with
standard C# functions and how big of a performance hit is it, if it is
possible?

Any information on this is appreciated.

Thanks,
Adam Dockter



John Wood
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Posts: n/a
#2: Nov 16 '05

re: Simple Comparing of Images


Perhaps you should think about how you're keying the images. You should
probably key your images by their original filename or something, that would
be easier and much much faster than comparing the images pixel for pixel.

--
John Wood
Blog: http://spaces.msn.com/members/johnwood


"Adam Dockter" <adam@cu.net> wrote in message
news:uuBPp%2364EHA.924@TK2MSFTNGP14.phx.gbl...[color=blue]
>I have a couple questions about comparing images. I notice the imagelist
> collection of images doesn't provide any comparison of images, and the
> System.Drawing.Image.Equal function will not compare if two images are the
> same.
>
> Is there a simple and efficient way to compare if two images are the same?
> This is all I want to do. I just want to add image objects to a
> collection
> and make sure I am not adding any duplicate images. Is this possible with
> standard C# functions and how big of a performance hit is it, if it is
> possible?
>
> Any information on this is appreciated.
>
> Thanks,
> Adam Dockter
>
>[/color]


Closed Thread