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Image processing circuit and image processing method

A technology for image processing and processing circuits, which is used in image communication, television, electrical components, etc.

Inactive Publication Date: 2010-12-01
NOVATEK MICROELECTRONICS CORP
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  • Abstract
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Problems solved by technology

[0010] In addition to black borders, the video processed by the video processing device 100 may also have corresponding white borders on the display.

Method used

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  • Image processing circuit and image processing method
  • Image processing circuit and image processing method
  • Image processing circuit and image processing method

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Embodiment Construction

[0111] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings, which illustrate exemplary embodiments of the present invention, wherein like reference numerals indicate the same or similar elements.

[0112] Please refer to Figure 5 , Figure 5 It is a functional block diagram of the image processing circuit 200 according to an embodiment of the present invention. The image processing circuit 200 receives and processes an input image signal S IN , to generate an output image signal S OUT . Input image signal S IN Information of pixel values ​​of a plurality of pixels is loaded, so that the display can display corresponding images. Wherein the above load is applied to the input image signal S IN The pixel values ​​of are sequentially input to the image processing circuit 200 . Please refer to Image 6 , Image 6 In order to input image signal S according to an embodiment of the present invention IN Partial p...

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Abstract

The invention discloses an image processing circuit and an image processing method. A difference adapter of the image processing circuit generates a weight value and a value of statistical indicant corresponding to each pixel of an input image signal according to pixel difference corresponding to the pixel. The image processing circuit judges whether the pixel difference of each pixel falls on a first region, a second region or a third region according to the value of statistical indicant. The image processing circuit performs low-pass filtering on the pixel of which the pixel difference falls on the first region, performs high-pass filtering on the pixel of which the pixel difference falls on the second region and performs brightness transient improvement on the pixel of which the pixel difference falls on the third region.

Description

technical field [0001] The present invention relates to an image processing circuit and its image processing method, and in particular to an image processing circuit and its image processing method which perform adaptive processing according to image characteristics. Background technique [0002] When viewing an image, in addition to the color and tone of the image, the outline / edge of the object in the image also attracts the viewer's attention. Image processing is used to enhance the above-mentioned image features to improve or enhance the visual effect of the image. For example, an image obtained by a digital camera or a scanner can be processed to make the image clearer and brighter. [0003] Sharpening is one of the techniques of image processing. In the image, after the contour / edge of the image object is sharpened, a higher contrast can be presented to highlight the image object. The term "sharpness" is often used to indicate the degree to which an image is sharpen...

Claims

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Application Information

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IPC IPC(8): H04N5/14H04N5/21
Inventor 陈威甫郭志嘉
Owner NOVATEK MICROELECTRONICS CORP
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