Question: In c++ I am trying to process an image to binarization and it can be done by comparing each pixel within the input image against

In c++

I am trying to process an image to binarization and it can be done by comparing each pixel within the input image against a predefined threshold T, and deciding whether each individual pixel gets turned white or black. Pixels whose intensity is less than T become black, all others become white. In order to find the threshold I must come up with a formula to figure out the median/intensity of all pixels.

How to calculate the average intensity, or the median of all pixels? Write a formula to figure this out and explain how you did it.

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