how to average image pixels without taking black color pixels (pixel=0)

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关闭： MATLAB Answer Bot 2021-8-20

i'm using m= mean2 (current_image);

mean2 takes all pixels ,the balckpixel=0 do not have value but they are counted in total number of pixels ( n )

mean2= h1+h2+....+h10+....+hn / n

if h1 = 0 ,so it is not counted in numerator but it is counted in the denominator

i wantn't count them in denominator

thanks in advance

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