Method and apparatus for enhancing image
An image enhancement and image technology, applied in the field of image processing, can solve the problem that the local area is not enhanced, and achieve the effect of good image processing effect.
Active Publication Date: 2009-08-19
VIMICRO ELECTRONICS CORP
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[0003] The problem with the image enhancement technology in the prior art is that although there are many image enhancement methods at present, they are all image enhancement for the entire image. Although they have the effect of enhancing the entire image, many local areas in the image area is not enhanced due to
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[0067] 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 of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0068] An image enhancement method is provided in the present invention, such as figure 1 shown, including the following steps:
[0069] Step s101, selecting several center points in the image to be processed.
[0070] Step s102 , taking each selected center point as the center, performing region diffusion around the center point, and dividing the image to be processed into multiple non-overlapping regions according to the brightness information...
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The invention discloses an image enhancement method and a device. The method comprises the steps as follows: a plurality of central points are selected from an image to be processed; each of the selected central point is taken as a center, and area diffusion is carried out to the surrounding of the selected center; according to the luminance information of the diffused area, the image to be processed is segmented into a plurality of areas which are not overlapped; and the images in the non-overlapped areas are respectively enhanced. In the method and device, a plurality of central points are selected from the image to be processed; then area diffusion is carried out to the surrounding of the selected center; after that, the image to be processed is divided into areas according to the luminance information of the diffused area; and finally the image in each area is respectively subjected to image enhancement processing. Compared with the traditional image enhancement method, the local information of the image can be enhanced more effectively and better image processing effect is achieved.
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] In the field of image processing, computers or optical equipment are mainly used to process images to improve the visual effect of images. The processing model used in the processing is determined according to the characteristics of the human eye on brightness observation, and the purpose is to improve the readability of the image. Image enhancement is one of the contents involved in image processing. It refers to the use of corresponding technical means to emphasize certain feature information in the image and suppress other information according to specific needs, so that the processed image is more suitable for subsequent image processing or other specific applications. Image enhancement mainly includes edge enhancement, texture enhancement, target area enhancement and contrast enhancement. In the e...
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IPC IPC(8): G06T5/00G06T5/20
Inventor 王俊艳黄英
Owner VIMICRO ELECTRONICS CORP