Image skin color beautifying method and system under any lighting conditions

Abstract

The present invention discloses an image skin color beautifying method and system under any lighting conditions. An input image is obtained by a mobile client; the brightness transition of the input image is adjusted, and a transition image is obtained; the transition image is subjected to skin color detection, and a skin color probability map is obtained; the transition image is subjected to human face detection, and a detection image is obtained; according to the skin color probability map, the highest brightness value of the skin color part in the detection image is calculated; the transition image is subjected to exposure adjustment according to the highest brightness value, and an exposure image is obtained; the exposure image is used to carry out skin color cast correction of the transition image, and a correction image is obtained; the skin color probability map is used to carry out permeability adjustment of the correction image, and a permeability image is obtained; the permeability image is subjected to saturation and contrast adjustment, and a final image is obtained; and the final image is outputted to a client. According to the method and system, the portrait skin color under various light environments can be rapidly and automatically adjusted to be natural and permeable.

Description

technical field [0001] The invention belongs to the technical field of image processing, and in particular relates to a method and system for beautifying image skin color under any light environment. Background technique [0002] In recent years, mobile devices such as smartphones and tablets have become entertainment tools that people carry with them. People can easily use these devices to record and share their lives through photos, and many of them are selfies or party photos with people as the main body. Moreover, the location and environment of taking pictures are very different, especially in the case of insufficient light at night, street lights, KTV, bars and other environments with complex lighting, the skin color of the portraits in the photos taken is usually difficult to achieve the ideal state. [0003] However, when current image processing technologies deal with image light problems, most of them smooth the skin of the image, and rarely correct the color of th...

AI Technical Summary

Problems solved by technology

[0002] In recent years, mobile devices such as smartphones and tablets have become entertainment tools that people carry with them. People can easily use these devices to record and share their lives through photos, and many of them are selfies or party photos with people as the main body. And the location and environment of taking pictures are very different, especially in the case of insufficient light at night, street lights, KTV, bars and other environments with complex light, the skin color of the portraits in the photos taken is usually difficult to achieve the ideal state

[0003] However, when the current image processing technology deals with image light problems, most of them smooth the skin of the image, and rarely correct the skin color.

But even if the skin color is corrected, more of it is pure whitening, which is not universal for image beautification in various complex lighting environments and it is difficult to make the skin natural and transparent

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