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?

Best Answer

  • Try this
    % 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;