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Image Processiong using Java

Amol Pingate
Greenhorn

Joined: Oct 02, 2008
Posts: 14
Hello Frirnds,

Is it possible to identify that two image files like .JPEG or .BMP are equal by checking them pixel by pixel.


Rob Spoor
Sheriff

Joined: Oct 27, 2005
Posts: 19697
    
  20

Check out java.awt.image.BufferedImage and javax.imageio.ImageIO.


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William Brogden
Author and all-around good cowpoke
Rancher

Joined: Mar 22, 2000
Posts: 12792
    
    5
I doubt very much that they would ever be equal since JPG is inherently lossy while BMP is not.

Bill
Rob Spoor
Sheriff

Joined: Oct 27, 2005
Posts: 19697
    
  20

But once loaded in memory, you can still compare the two. The results may not be what you expect, but you can still compare pixels (as ARGB values).
 
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subject: Image Processiong using Java