Method and shooting cell phone capable of skin color change of photos through PCA linear transformation

Abstract

The invention discloses method capable of skin color change of photos through PCA linear transformation, comprising the steps that before shooting, the color parameter is detected by means of PCA, andcolor saturation, chroma and gray scale; during shooting, the skin color parameter can be selected at random, or the skin color can be selected by users at will; S3 based on different color skins, different color saturation, chroma and gray scale can be selected accordingly, and the effect of skin color change can be achieved through adjusting the parameter of corresponding skin color in PCA. Theinvention is advantageous in that a plurality of parameters are customized through PCA to make different skin colors, and thereby skin colors can be flexibly changed based on client demand when an interest self-timer camera is in use; as an effective major constituent analysis method, PCA can conveniently extract the effective feature of the target and reduce the complexity of data processing, which is suitable for cell phone applications.

Description

technical field [0001] The invention relates to the field of image processing, which is applied in the processing of photos taken by mobile phones, and specifically refers to a method for realizing the skin color change of photos through linear transformation, and a camera phone. Background technique [0002] The emergence of mobile phones has changed people's way of life. At present, the mobile phone industry is developing rapidly, and a variety of functions have entered people's field of vision. It is no longer just a communication tool that can make calls and send text messages. People's requirements for it are getting higher and higher. Nowadays, mobile phone photography has become the mainstream, and people like to share their photos on social networks to show their lives. For those who like to take pictures, beauty is something that cannot be settled at all. More and more photo enthusiasts are keen to take fun photos to show different styles and reflect their own per...

AI Technical Summary

Problems solved by technology

[0017] In the above prior art, the method of image post-processing has a large amount of computation and high implementation complexity, which can be implemented in computer equipment. Although the processing capability of mobile phones has been greatly improved, this method still cannot be implemented; and adjustment The method of ambient light has higher requirements to the illuminating lamp (such as flashlight) that mobile phone is equipped with, and should be able to send out the light of multiple colors, intensity, and existing mobile phone does not have the condition yet, and the controllability of method is low, Relies on manual adjustments by the operator and is therefore not popular with users

[0018] In short, there is still a lack of innovative technology for changing skin color in mobile phone photography in the prior art

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