# MATLAB: Image processing

digital image processingimage analysisMATLAB

how to find if the surrounding 3×3 pixels of a pixel is within the threshold of T=32 with respect the central pixel?

% Get the 3x3 window around the pixel.window3x3 = fullImageArray(row-1:row+1, col-1:col+1);% Compare it to the center pixel.withinT = abs(window3x3 - fullImageArray(row, col)) <= T;