How do you determine which is the origin of a 4×4 kernel? In a 3×3, its easy since its the center. But 4×4 are not, do I need to modify the kernel to make it symmetric?
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How do you determine which is the origin of a 4×4 kernel? In a 3×3, its easy since its the center. But 4×4 are not, do I need to modify the kernel to make it symmetric?
Your output would just not be aligned with the original pixels. It would be aligned half a pixel off from the orignal pixels. You could then interpolate values for the original pixel positions if you wanted.