extra white region in Image convolution with first order guassian derivative

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nimai

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Hi all,

My image process work steps involves downsampling, despeckling and Image convolution with first order guassian derivative.While doing convolution i get extra white space region at the higher row index values..it may cause error in my work as the next step is intensity plot against row index...So can anybody help me in avoiding this extra whites spaces.

Nimai
 

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