window fixing

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javeed miyandad
javeed miyandad on 10 Apr 2011
sir i have a image of size(mXn),i need to count black pixel from pixel(i j) with window size(32X64)
i am not geting how to fix window of(32X64) sir plz help me in coading
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Walter Roberson
Walter Roberson on 10 Apr 2011
Do you mean go 16 pixels above to 16 below, and 32 pixels left to 32 right, and count the black pixels in that block?
If so then I note those are even numbers on each side, so there is no natural "central" pixel. How exactly do you want this window positioned with respect to a particular pixel ?

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Answers (1)

the cyclist
the cyclist on 10 Apr 2011
It is not clear to me what you want, but to get a section 32x64 from coordinates i,j use:
pixel(i:i+31,j:j+63)

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