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Histogram image contrast enhancement method and display device

A contrast enhancement and display device technology, which is applied in image enhancement, image analysis, image data processing, etc., can solve the problems of unsatisfactory image processing effect and inability to realize self-adaptive adjustment, etc., and achieve the best display effect

Active Publication Date: 2017-03-08
SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for pictures with different characteristics, parameters need to be adjusted, and adaptive adjustment cannot be realized, and the picture processing effect is not ideal

Method used

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  • Histogram image contrast enhancement method and display device
  • Histogram image contrast enhancement method and display device
  • Histogram image contrast enhancement method and display device

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Embodiment Construction

[0049] In the following description, specific details are set forth in order to provide a thorough understanding of the invention. However, the present invention can be implemented in many other ways other than those described here, and those skilled in the art can make similar extensions without departing from the connotation of the present invention. Accordingly, the present invention is not limited to the specific embodiments disclosed below.

[0050] In view of the defects mentioned in the background art, the present invention provides a method for image contrast enhancement of a histogram. The present invention will be further described in detail with reference to the accompanying drawings and embodiments.

[0051] see figure 1 , the present invention provides a histogram image contrast enhancement method, comprising:

[0052] Step S101, acquiring an input image.

[0053] In step S102, the input image is divided into multiple sub-blocks, and a histogram of each sub-bl...

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Abstract

The present invention discloses a histogram image contrast enhancement method. The method comprises: acquiring an input image; dividing the input image into a plurality of sub blocks, and obtaining a histogram of each sub block; carrying out feature analysis on the input image to obtain corresponding extreme contrast values; according to the extreme contrast values, carrying out equalization processing on the histogram of each sub block to obtain a new grayscale histogram for each sub block; mapping the obtained new grayscale histogram to the input image by using a mapping table; carrying out interpolation processing on the adjacent sub blocks of the input image to obtain a result image; and outputting the result image. The present invention also provides a display device. According to the histogram image contrast enhancement method provided by the present invention, by adding the adaptive parameter adjustment mechanism, the image is dynamically adjusted to the optimal parameter according to the image features, so that display quality of the image is improved.

Description

technical field [0001] The invention relates to the technical field of display devices, in particular to a histogram image contrast enhancement method and a display device. Background technique [0002] With the development of monitors, consumers pay more and more attention to image quality, so various algorithms to improve the display effect through image algorithms are widely used, but many of the algorithms have various parameter adjustments, and have different optimal results for different pictures. parameters to match. Among them, the existing contrast-limited local histogram equalization (CLAHE) algorithm adopts partition processing, which can perform local enhancement, and adopts bilinear difference, which can make partition edges smooth. However, the parameters need to be adjusted for pictures with different characteristics, and adaptive adjustment cannot be realized, and the picture processing effect is not ideal. Contents of the invention [0003] The technical...

Claims

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Application Information

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IPC IPC(8): G06T5/40G06T7/11G06T7/187
CPCG06T5/40
Inventor 金羽锋
Owner SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD