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Image process device and method for selecting image color graded

An image and dithering technology, applied in the field of image processing, can solve the problem that the image dithering method can no longer be adjusted

Inactive Publication Date: 2010-03-17
NOVATEK MICROELECTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the product is shipped, the image dithering method of the monitor can no longer be adjusted
It means that all images received by the monitor can only be processed with the same image dithering method, but currently there is no image dithering method that can make all images have the best visual effect

Method used

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  • Image process device and method for selecting image color graded
  • Image process device and method for selecting image color graded
  • Image process device and method for selecting image color graded

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Embodiment Construction

[0021] The present invention firstly calculates the general appearance of the gray scale of each color sub-pixel in the input image, so as to select a suitable image dithering program, so as to display an image with a higher color depth on a display with a lower bit depth.

[0022] see figure 1 , figure 1 It is a functional block diagram of the image processing device 10 of the present invention. The judging unit 12 of the image processing device 10 receives an input image, and calculates the general law of the gray scale of each color sub-pixel in the multiple pixel data in the input image, so as to select an image dithering suitable for the input image program. The dithering processing unit 14 of the image processing device 10 selects the corresponding image dithering program from the image dithering programs 22 - 28 according to the control signal of the judging unit 12 .

[0023] see figure 2 and image 3 ; figure 2 is a schematic diagram of the input image for seg...

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Abstract

This invention selects a corresponding image successive color program based on the rule of the gray scale of sub-pixels of each color of an input image to display the input image on a display with lowbit depth.

Description

technical field [0001] The invention relates to an image processing method, in particular to a method for selecting image dithering. Background technique [0002] The color depth of an image is determined by the number of bits used to express each pixel in the image, that is, the bit depth of the pixel. In general, the higher the color depth of an image, the more detailed it will be. [0003] Generally, a display (such as a computer screen or a display panel of a PDA, etc.) can handle a limited bit depth. When the bit depth that the display can handle is lower than the color depth of the image to be displayed, for example, when a 6-bit display is used to display an 8-bit image, a technique called image dithering is often applied. , to display an image with a higher color depth on a monitor with a lower bit depth. [0004] However, at the application level, after the display is manufactured, an image dithering method is selected. After the product is shipped, the display'...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N9/64G09G5/02
Inventor 刘铭昌张瑞鸿
Owner NOVATEK MICROELECTRONICS CORP