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Method for improving false contour of plasma image

A pseudo-contour and plasma technology, applied in the field of image processing, can solve problems such as displaying dynamic image interference

Inactive Publication Date: 2008-09-17
四川世纪双虹显示器件份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to achieve 256-level grayscale display, in the 8 sub-fields, the display period of each sub-field is divided on the time axis according to the binary weight, which is prone to interference when displaying dynamic images

Method used

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  • Method for improving false contour of plasma image
  • Method for improving false contour of plasma image

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Embodiment Construction

[0277] refer to figure 1 As shown, for the 42-inch PDP in the embodiment, its data processing process is as follows: firstly, the data signal is received from the interface, and then after the inverse gamma transformation, the error diffusion process is performed according to the classic FloydSteinberg error diffusion method, as described below The error diffusion method is the classic Floyd Steinberg error diffusion method: the subfield changes the number of subfields, and the number of subfields is selected as 12, and then the data is separated by subfield according to the driving requirements of the ADS driving method. The data is stored in the frame memory and sent to the addressing drive circuit.

[0278] In this implementation, the codes are first selected from the 256-level gray scale codes according to the principle that the human eye stimulation integral does not produce false contours, and this group of codes is used to represent the 0-255 gray scale levels. Then th...

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Abstract

The invention discloses a method for improving false configuration of plasma image which comprises steps of: receiving other pixels diffusion errors by current pixel, getting new gray grad value bye adding other pixel diffusion errors on current pixel gray grade value, taking the integer part of the new gray grade value as a middle gray grade value and taking the decimal part of the new gray grade value as middle error; getting the gray grade for displaying by the middle gray grade value looking up table, taking the difference of the middle gray grade value and the display gray grade as middle compensating error, adding the compensating error with the middle error to get error of the pixel point; diffusing the error to adjacent pixels with Floyd Steinberg method.

Description

technical field [0001] The invention relates to an image processing method for improving the image quality of a plasma display, in particular to a method for improving the plasma image false contour. Background technique [0002] The AC-PDP includes a plurality of address electrodes and a plurality of sustain and scan electrodes arranged perpendicular to the address electrodes. The addressing, sustaining and scanning electrodes are covered with an insulating layer to separate them from the discharge space, and the discharge cells corresponding to the pixels are formed at the intersections of the addressing electrodes and the sustaining and scanning electrodes. [0003] According to the visual physiology of the human eye, when the repetition frequency of light pulses is higher than the critical flicker frequency, different brightness can be displayed by controlling the number of light pulses. AC-PDP uses the sub-field method to divide a field period into N sub-fields. In eac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/288G09G3/28G09G3/20H01J17/49G09F9/313
Inventor 徐曼
Owner 四川世纪双虹显示器件份有限公司