High-dynamic digital image display enhancement method and system based on gamma correction

A digital image, high dynamic technology, applied in the field of image processing, can solve the problem that high dynamic digital image compression and enhancement methods are difficult to meet the requirements of high frame rate

Pending Publication Date: 2021-04-02
BEIJING INST OF ENVIRONMENTAL FEATURES
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  • Abstract
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Problems solved by technology

[0006] The purpose of the present invention is to provide a high dynamic digital image display enhancement method based on gamma correction to solve the technical problem that high dynamic digital image compression and enhancement methods are difficult to meet the high frame rate requirements

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Embodiment Construction

[0041]DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0042]According to an embodiment of the present invention, a high dynamic digital image display enhancement method based on GAMMA correction is provided to solve the technical problem of high-dynamic digital image compression and enhancement methods to meet high frame frequency requirements.

[0043](2) Technical program

[0044]The present invention provides a method of displaying enhancement based on GAMMA-corrected digital image display enhancement.figure 1 As shown, the method includes the following steps:

[0045]S1, enter a digital image of a high bit number;

[0046]S2, perform a histogram statistical diagram statistical image map to obtain a gray scale distribution function.

[0047]S3, set constant amin and bmax, and obtain the gradation value from 0 to increase the grayscale value a larger than the distribution function greater than Amin, and obtain the gradation value from the start cumulative to the distribution function greater th...

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Abstract

The invention discloses a high-dynamic digital image display enhancement method based on gamma correction. The method comprises the following steps: inputting a high-digit digital image original image; performing histogram statistics on the original digital image to obtain a gray level distribution function; setting constants ammin and bmax, calculating a gray value a corresponding to the gray value accumulatively increased from 0 to the gray value a corresponding to the distribution function greater than ammin, and calculating a gray value b corresponding to the gray value accumulatively decreased from 0 to the gray value b corresponding to the distribution function greater than bmax; linear mapping and gamma transformation are facilitated, and enhanced display mapping of the image from high digits to eight digits is realized. The invention further discloses a high-dynamic digital image display enhancement system based on gamma correction. The high-dynamic digital image display enhancement method based on gamma correction aims to solve the problem that the high-dynamic digital image compression and enhancement method is difficult to meet the requirement of high frame frequency.

Description

Technical field[0001]The present invention relates to the field of image processing, and more particularly to a GAMMA-based digital image display enhancement method and system.Background technique[0002]With the development of high-resolution infrared detectors, more and more occasions need to directly process the original digital image containing more details, more gray levels, which can extract more targets and background details in the back-end image processing algorithm. . However, high dynamic digital images have high grayscale numbers, which is not conducive to human eye, and it must be converted into a 0 ~ 255 grayscale range that facilitates visual observations.[0003]However, during the conversion process, if the maximum minimum linear mapping is directly utilized, there is a bad element, a dead or flash element, which generally causes the image bias, the target, and details of the object, and the target and detail. So many high dynamic digital image compression and enhanceme...

Claims

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Application Information

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IPC IPC(8): G06T5/00G06T5/40
CPCG06T5/40G06T2207/20208G06T5/92
Inventor 李晓平石春雷杨桦杨文佳
Owner BEIJING INST OF ENVIRONMENTAL FEATURES
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