Image processing method and device, computer readable storage medium and computer device

Abstract

The invention discloses an image processing method. The method comprises the steps of positioning all human faces in a preview image; calculating an area ratio of the human face in the preview image so as to obtain a largest human face area in which the human face with the largest area ratio is; calculating a first average brightness value FL of the largest human face area, a second average brightness value PL of the preview image and a light ratio FP, wherein a light ratio FP is a ratio of the first average brightness value FL to the second average brightness value PL; and regulating the brightness values of areas in which all human faces are according to the first average brightness value FL and the light ratio FP. The invention further discloses an image processing device, a non-volatile computer readable storage medium and a computer device. Through adoption of the image processing method, the image processing device, the non-volatile computer readable storage medium and the computer device, if the light ratio FP is low and the human face average brightness is low, the brightness values of all human faces are increased, so that the human face brightness in photographing is highenough, and the photographing effect is improved.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to an image processing method, an image processing device, a non-volatile computer-readable storage medium and computer equipment. Background technique [0002] When taking a selfie, when there is a large difference between the brightness of the scene and the brightness of the face (for example: backlight), often only images with better scene shooting effects or better face shooting effects can be obtained. The related technology uses 3HDR technology, through 4 The integrated sensor performs long, medium, and short exposures, and then synthesizes and outputs images under different exposure times. The image with good scene shooting effect and the image with good face shooting effect are synthesized, so as to obtain both face and scene effects. better image. However, in a scene where the brightness of the face is very different from the brightness of the scene, altho...

AI Technical Summary

Problems solved by technology

However, in the scene where the brightness of the face and the brightness of the scene are very different, although the face and the background can be seen clearly at the same time, the face is often not bright enough to look beautiful.

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