What do you think of the photo histogram?

1. Open a picture. In ps, we can see its histogram on the right, or we can watch the histogram directly in the camera.

2. The horizontal direction of the histogram represents brightness, the vertical direction represents pixels, the horizontal left side is bright, and there are many vertical directions.

3. There are many ways to display the histogram. Generally speaking, we all choose rgb mode.

4. When the mouse stays below a certain position, the information will change. Color code: brightness level; Quantity: the quantity value under this brightness; Percentage: the relative position of the mouse position in the whole histogram.

Generally speaking, the peak and trough of the histogram of normal exposure should be concentrated in the middle.

6. But it is not a work that is not concentrated in the middle peak and valley, such as a silhouette with a large backlight. The peaks and valleys are distributed on both sides, but it is still a masterpiece.

On photographic histogram

Histogram was originally a chart in statistics. It is divided into horizontal axis and vertical axis, with the horizontal axis representing data type and the vertical axis representing distribution. In photography, the horizontal axis of this icon is used to represent brightness, and the vertical axis is used to represent the number of pixels in a certain area on the horizontal axis. On the horizontal axis, the dark part on the left is called dark tone, the bright part on the right is called bright tone, and the middle part is called middle tone.

Through the histogram of a photo, we can intuitively observe the light and dark changes of a photo. Later, the brightness of the picture can be adjusted according to this histogram.