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Image processing method and system for exposing images

An image processing and image technology, applied in the field of image processing, can solve the problems of long processing time and high algorithm complexity, and achieve the effect of enhancing brightness components, reducing the amount of calculation, and retaining detailed information

Active Publication Date: 2019-06-21
SHENZHEN TCL NEW-TECH CO LTD
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Problems solved by technology

[0003] The purpose of the embodiments of the present invention is to provide an image processing method and system for exposure images, aiming at solving the need to use different algorithms for processing exposure images of different degrees in the prior art, resulting in long processing time and poor algorithm performance. more complex problems

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  • Image processing method and system for exposing images
  • Image processing method and system for exposing images

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Embodiment Construction

[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0030] The image processing method and system for exposing images provided by the embodiments of the present invention convert the initial RGB space image into two different color space images, namely XYZ space image and YCbCr space image, and the two color space images Carry out different processing to synthesize enhanced brightness components, and finally adjust the brightness of the three-component images in the initial RGB image, and finally output the enhanced RGB space image. The image processing method and system for exposing images provided in this embodiment can effectively extract the det...

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Abstract

The invention relates to an image processing method and apparatus for exposing images. The method includes the following steps: acquiring an initial RGB spatial image, separately transforming the initial RGB spatial image to an XYZ spatial image and a YCbCr spatial image; extracting a first texture characteristic of a luminance component in the XYZ spatial image and a second texture characteristic of a luminance component in the YCbCr spatial image, and superposing the first texture characteristic and the second texture characteristic to obtain an enhanced luminance component; and obtaining a transformation coefficient from the enhanced luminance component, and based on the transformation coefficient, obtaining an enhanced RGB spatial image. According to the invention, the method and the system can process images with different exposure, reduce computing complexity, and is conducive to saving detailed information of exposed images.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to an image processing method and system for exposing images. Background technique [0002] During the image capture process, due to the high intensity of sunlight and the randomness of the occasion, there may be insufficient time to adjust the exposure of the capture device when capturing some wonderful moments, resulting in overexposure or overexposure of the image during the capture process. Underexposure of the image leads to low content of image information and loss of some important image information. At present, the processing method of the exposed image is generally a histogram transformation algorithm, that is, the exposed image is obtained by extracting the histogram of the exposed image, processing the histogram and then outputting it. However, although the above method performs histogram equalization on the exposed image, an image with rich gray levels ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/50
CPCG06T5/50G06T2207/20028
Inventor 王甜甜
Owner SHENZHEN TCL NEW-TECH CO LTD
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