What do you think of photographic color histogram?

Histogram is a graphical representation of the number of pixels in each brightness level or color in an image, which shows the distribution of pixels in the image. It can help us to determine whether the brightness or red, green and blue of an image have enough details in shadows, midtones and highlights.

Many cameras can display color histograms at the same time when looking back at images. Different camera calling methods and display interfaces are different, but they can generally be set in "Settings Menu/Image Review". The picture below shows the interface of a camera, in which the histogram is a histogram, which can be divided into brightness and color (RGB). You can choose according to your own needs.

The following figure shows how the manual treats RGB histogram (i.e. color histogram).

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