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An image enhancement method and device

A technology of image enhancement and pixel value, which is applied in the field of image processing and can solve problems such as image roughness

Inactive Publication Date: 2017-11-17
珠海百思迪软件科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Since the above technology only performs a simple power transformation on the input image, it can only adjust the overall brightness of the image, and the enhanced image is relatively rough.

Method used

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  • An image enhancement method and device
  • An image enhancement method and device

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0032] figure 1 is a schematic flow chart of an image enhancement method provided by an embodiment of the present invention, such as figure 1 shown, including:

[0033] 101. Calculate the central response value of the target pixel based on the original pixel value of the target pixel, where the central response value is greater than the original pixel value;

[0034] 102. Calculate the first total suppression value of the target pixel, the first total suppression...

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Abstract

An embodiment of the present invention discloses an image enhancement method, which includes: calculating the center response value of the target pixel based on the original pixel value of the target pixel; calculating the first total suppression value of the target pixel, where the first total suppression value is the target pixel The sum of the suppression values ​​of all neighboring pixels on the target pixel. Neighboring pixels are neighborhood pixels pre-specified as target pixels. The suppression value of a neighborhood pixel on the target pixel refers to the neighborhood The value representing the inhibitory effect of the pixel on the target pixel; when the center response value is greater than the first total suppression value, the center response value is subtracted from the first total suppression value to obtain the difference, and the difference is used as the image after enhancement. The pixel value of the target pixel; when the center response value is less than the first total suppression value, the 0 value is used as the pixel value of the target pixel after image enhancement. Correspondingly, an embodiment of the present invention also discloses an image enhancement device. Embodiments of the present invention can achieve more detailed enhanced images.

Description

technical field [0001] The invention relates to the field of image processing, in particular to an image enhancement method and equipment. Background technique [0002] Image enhancement technology is one of the key technologies in the field of image processing. This technology is used to improve and enhance the quality of the original image, and even reveal the hidden information in the original image, making it more suitable for the observation of the human visual system or the subsequent processing of other functional modules. . And image enhancement technology has important applications in remote sensing, dynamic scene analysis, automatic navigation, medical image analysis and other fields. [0003] At present, the most commonly used image enhancement technology is to achieve image enhancement through gamma correction. The principle is to use a power transformation for the grayscale of the input image pixel, as shown in the official form: [0004] s=cr γ [0005] Amo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/00
CPCG06T5/20G06T7/90G06T5/73G06T5/90G06T5/40G06T2207/20192
Inventor 杜馨瑜王栋
Owner 珠海百思迪软件科技有限公司