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Image enhancement method and device

An image enhancement and image technology, applied in the field of image processing, can solve problems such as details, boundary contours, blurred lines, etc.

Inactive Publication Date: 2010-11-03
VIMICRO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the noise in the image is often intertwined with the signal, so the details, boundary contours, and lines of the image itself will be blurred during the smoothing process

Method used

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  • Image enhancement method and device
  • Image enhancement method and device

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Embodiment Construction

[0044] In order to better illustrate the present invention, the method and device of the present invention will be further described below in conjunction with specific embodiments.

[0045] In this example, if figure 1 Shown, an image enhancement device, the device includes the following modules:

[0046] Image acquisition module 11: collect images through a camera and digitize the images;

[0047] Image adaptive enhancement module 12: used to enhance the image through a piecewise linear function and a boundary elimination filter;

[0048] Image output module 13: used for outputting the enhanced image.

[0049] In the present embodiment, the following sub-modules are also provided in the described image adaptive enhancement module 12:

[0050] Segment weighted enhancement sub-module 14, used for smoothing and sharpening the local area of ​​the image;

[0051] The edge contour elimination sub-module 15 is used to detect and remove the pixel with the largest degree of differ...

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Abstract

The invention relates to an image enhancement method and an image enhancement device, and belongs to the field of image processing. The method comprises the following steps: acquiring an image by using a camera and then digitalizing the image; making full use of the related information of the gray-scale difference between pixels or the gray-scale difference of pixels in adjacent areas so as to effectively integrate mage smoothing and image sharpening by using a segment processing method; and finally, eliminating the image noise boundary by using a boundary suppressor so as to realize image enhancement processing. The image enhancement method and the image enhancement device are particularly suitable for enhancing noise images, and have the advantages of simple algorithm, high efficiency and high stability; and the enhancement techniques in the device are clear in structure, strong in independence and less in controllable parameters, so the user is facilitated to obtain expected output images after effect enhancement.

Description

technical field [0001] The present invention relates to the field of image processing, in particular to an image enhancement method and device. Background technique [0002] With the wide application and continuous development of multimedia technology, digital image processing becomes more and more important. In the process of image formation, transmission or transformation, due to the influence of various factors, such as system noise, underexposure or overexposure, etc., there is often a certain difference between the image and the original image, that is, image degradation or degradation. Therefore, in many applications, the obtained original image or video frame sequence must be processed again to make it have better visual effect or richer visual content. Wherein, in the prior art, commonly used image enhancement technologies are image sharpening processing and smoothing processing. [0003] As a kind of digital image enhancement technology, sharpening processing main...

Claims

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Application Information

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IPC IPC(8): G06T5/00
Inventor 卢晓鹏
Owner VIMICRO CORP
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