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I used to read an image using BuffereedImage method
int pixel=im.getRGB(j,i))&0xFF;
and I think it is queit ok; however, after somedays (ok years..... )
I WAS WRONG !!!!
OMG the pixel value is not accurate and this is a very serious problem when reading a image
and mulipalating the values .
The more correct way to read the 8 bit grayscale image would be
int p=im.getRaster().getSample(j, i, 0);
using method : getRaster()
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