How to understand the basic knowledge of photography

Histogram is a graphical representation of the number of pixels at each brightness level of an image, which shows the distribution of pixels in the image. It can help us to determine whether the image has enough details in shadows, midtones and highlights for good correction.

The classic introduction of histogram judgment exposure is:

A, the left foot can't be seen, and the dark details are lost;

B, the right foot can't be seen, and the details of the bright part are lost;

C, the foothills on both sides can't be seen, and the exposure is clear;

D, the peak on the right bright area is large, and the peak on the left shadow is more;

E. if the valley is in the middle, there are few details of the middle tone.

Histogram, in addition to directly looking at the histogram, when using color scales and curves, the histogram is actually displayed in the interface. Due to their different division of labor, there are still many differences in the display of other information.

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