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If h(rk) = nk, rk the kth gray level and nk total pixels with gray level rk, is a histogram in gray level range [0, L – 1]. Then how can we normalize a histogram?

mhmadesk

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2022-06-04

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If h(rk) = nk, rk the kth gray level and nk total pixels with gray level rk, is a histogram in gray level range [0, L – 1]. Then how can we normalize a histogram?

If each value of histogram is added by total number of pixels in image, say n, p(rk)=nk+n
If each value of histogram is subtracted by total number of pixels in image, say n, p(rk)=nk-n
If each value of histogram is multiplied by total number of pixels in image, say n, p(rk)=nk * n
If each value of histogram is divided by total number of pixels in image, say n, p(rk)=nk / n

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mhmadesk

2022-06-04

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(d).If each value of histogram is divided by total number of pixels in image, say n, p(rk)=nk / n

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