GPU-based mobile terminal high-quality beauty real-time processing method

A real-time processing, high-quality technology, applied in image data processing, instruments, calculations, etc., can solve problems such as low efficiency, and achieve the effect of ensuring real-time efficiency

Active Publication Date: 2016-09-28
CHENGDU SOBEY DIGITAL TECH CO LTD
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Problems solved by technology

[0008] The purpose of the present invention is to overcome the deficiencies in the prior art, and provide a real-time processing method for high-quality beautification at the mobile terminal based on GPU. With the help of the hardware acceleration characteristics of GPU, the problem of low efficiency when using CPU can be solved. At the same time, the method proposes And each sub-step used can be well applied to GPU accelerated processing, while ensuring real-time efficiency, real-time effect presentation can be obtained

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Embodiment Construction

[0062] Describe technical scheme of the present invention in further detail below in conjunction with accompanying drawing: as figure 1 Shown, a kind of real-time processing method of high-quality beautification of mobile end based on GPU, it comprises image acquisition step, image processing step and image fusion step;

[0063] The image acquisition step includes: inputting a pair of RGB color images;

[0064] The image processing step comprises three sub-steps independently executed pixel by pixel based on GPU hardware acceleration: the overall beautification sub-step of the image, the enhancement processing sub-step of the image and the mask processing sub-step of the skin area of ​​the generated image;

[0065] The overall beautification sub-step mainly includes smoothing the human skin area, such as the erasure of spots and moles on the face and other skin areas that affect the appearance, and the environmental noise introduced by the overall lighting such as underexposur...

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Abstract

The invention discloses a GPU-based mobile terminal high-quality beauty real-time processing method, which comprises an image acquisition step, an image processing step and an image fusion step. With the help of hardware acceleration characteristics of the GPU, multiple sub steps in the method are processed, and the problem of low efficiency when the GPU is used can be solved. Each sub step disclosed and used in the method can be well applied to GPU acceleration processing, immediate effect presentation can be obtained while the real-time efficiency is ensured, and the method is applied to special effect processing of a single image. In addition, the invention provides an image denoising algorithm processing framework which is easy to understand and excellent in performance, a quick image denoising scheme based on an image integral graph is used, the calculation speed is ensured not to be related with the size of a sampling window, and while image noise such as spots is well removed, details are kept.

Description

technical field [0001] The invention relates to a real-time processing method for high-quality beautification at a mobile terminal based on GPU. Background technique [0002] The beauty method usually consists of multiple basic steps, including the removal of noise such as external light and human skin in the image, human skin detection, face detection, freckle removal, skin whitening, image fusion, etc. [0003] As the most basic and important part of image denoising, it plays a vital role in subsequent algorithm processing. At present, there are many denoising algorithms, usually including Gaussian smoothing, bilinear filter smoothing, average filter smoothing, and block-based smoothing. Algorithms such as matching 3D denoising, in which the performance and effect of each algorithm have different degrees of difference, and each has different degrees of limitations, which has a greater impact on the selection of algorithms for application scenarios. For example, the averag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T3/00
CPCG06T3/0012
Inventor 赖守波韩志宏余刚
Owner CHENGDU SOBEY DIGITAL TECH CO LTD
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