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A Method of Quadratic Histogram Equalization for Dynamic Images

A histogram equalization and dynamic image technology, which is applied in the field of image processing, can solve the problems of long time consumption and achieve the effect of preventing gray level swallowing and enhancing images

Active Publication Date: 2022-03-08
SHIJIAZHUANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a dynamic image method for quadratic histogram equalization, aiming to solve the problem that it takes a long time to process all images with histogram equalization method

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  • A Method of Quadratic Histogram Equalization for Dynamic Images
  • A Method of Quadratic Histogram Equalization for Dynamic Images
  • A Method of Quadratic Histogram Equalization for Dynamic Images

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specific Embodiment approach

[0054] As a specific implementation of the method for the secondary histogram equalization dynamic image provided by the present invention, combining the image to be processed and the image at the second moment to determine the target image includes:

[0055] The image to be processed and the static image in the image at the second moment are stitched together to determine the target image.

[0056] Since the dynamic image can be processed through a series of processing such as calculating the grayscale image, the image grayscale phagocytosis can be placed under the condition of keeping the image entropy value unchanged, and the image can be effectively enhanced while retaining the detailed information in the image. Make dynamic parts stand out. Combine the graphics to be processed and the static image, so that a complete image that highlights the dynamic area can be output, and for devices with strong computing power, it can output a relatively continuous continuous video tha...

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Abstract

The invention provides a method for equalizing a dynamic image with a secondary histogram, which belongs to the technical field of image processing. The method for equalizing a dynamic image with a secondary histogram includes the following steps: acquiring a grayscale image of the dynamic image, counting the histogram of the grayscale image and obtaining array H I , for array H I Perform scaling processing to get the array H J ;Set threshold Y, set H J The elements smaller than the threshold Y are recorded as the elements to be replaced, and the elements to be replaced are converted to the m power of the current element to be replaced, and the array H is obtained M ; in the array H M Build an array H based on N , and by the array H M with array H N Construct a new new histogram array H' I ; pair array H' I Carry out cumulative summation, construct the image to be processed by the new gray scale k "; the image to be processed and the second moment image are stitched together to determine the target image. The secondary histogram equalization dynamic image method provided by the present invention can effectively improve The calculation speed takes less time.

Description

technical field [0001] The invention belongs to the technical field of image processing, and more specifically relates to a method for quadratic histogram equalization of a dynamic image. Background technique [0002] Histogram equalization method has become a common method of image enhancement because of its effectiveness and ease of use. The basic idea is to determine the corresponding grayscale output value of the image according to the grayscale probability distribution of the input image, and improve the visual effect of the image by expanding the dynamic range of the grayscale distribution of the image, so as to achieve the purpose of improving the contrast of the image. Since the histogram equalization method performs multi-step processing on the basis of the original image, its calculation process is relatively cumbersome, and the image contains non-important information, and it takes a long time to process all of them. Contents of the invention [0003] The objec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/40G06T5/50
CPCG06T5/40G06T5/50
Inventor 唐加冕
Owner SHIJIAZHUANG UNIVERSITY