Image processing device and method

An image processing and image technology, applied in image data processing, image enhancement, instruments, etc., can solve problems such as image inconsistency, noise, and serious overall image noise, and achieve the effect of improving quality

Inactive Publication Date: 2010-12-22
华映视讯(吴江)有限公司 +1
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  • Abstract
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Problems solved by technology

[0004] Taking the image of a moving vehicle as an example, using the known sharpening technology to sharpen the overall image, although the blur problem of the vehicle can be improved, the noise of the overall image will also become more serious
It is worth mentioning that if the background of the vehicle is already a clear picture, the sharpening process will make the background of the vehicle over-sharpened, resulting in a quite uncoordinated picture and generating noise that the human eye cannot bear

Method used

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Embodiment Construction

[0020] The sharpening processing technology in the known technology is to perform sharpening processing on the overall image, and the image blocks that do not need to be sharpened will also be forced to be sharpened, so it is easy to generate noise that cannot be tolerated by human eyes.

[0021] In view of this, an embodiment of the present invention provides an image processing technology. Each block of the current image can be judged as a dynamic image or a static image. Then, the sharpening effect is enhanced for the dynamic image part in the image, thereby improving the problem of motion blur. In addition, for the static part of the image, the sharpening effect is reduced (or even no sharpening processing is required), so the generation of noise can be avoided. In this way, the current image can be adjusted dynamically and adaptively, and the quality of the output image can be improved accordingly. Embodiments of the present invention will be described in detail below w...

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Abstract

The invention provides an image processing device and method. The method comprises the following steps: computing the adjusted value according to the pixel of the current image and a plurality of neighboring reference pixels; computing the weight coefficient according to the gray-scale value difference between the pixel of the current image and the pixel of the previous image; computing the weighted adjusted value according to the adjusted value and the weight coefficient; and adjusting the pixel of the current image according to the weighted adjusted value and further producing the pixel of the output image. The invention can adaptively adjust the current image and elevate the quality of the output image.

Description

technical field [0001] The present invention relates to an image processing technology, and in particular to an image processing technology capable of dynamically and adaptively adjusting images. Background technique [0002] With the development of multimedia technology, people's requirements for high-quality images are increasing day by day. However, under the fast dynamic picture of the liquid crystal display, because the response speed of the liquid crystal (Liquid Crystal, LC) is not fast enough (generally 1ms ~ 16ms), and the backlight system adopts a steady-state (Holding Type) driving method, In this way, there will be a problem of image afterimage due to the persistence of vision of the human eye, and this is the so-called motion blur (Motion Blur) phenomenon. [0003] In view of this, the known technology often uses sharpening processing technology to improve the problem of image blur. The known sharpening processing technology is to perform sharpening processing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00G09G3/36
Inventor 高盟超曹国隆
Owner 华映视讯(吴江)有限公司
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