Image processing method and device

An image processing and image data technology, applied in image data processing, image data processing, instruments, etc., can solve problems such as loss of color information, lost lines, poor image quality, etc., to ensure image quality and reduce image quality.

Inactive Publication Date: 2004-11-17
VIA TECH INC
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Problems solved by technology

[0006] But because the number of horizontal scanning lines of the computer display frame is increasing, such as 768, 864, 1024 or even 1200, the vertical reduction degree required by the above-mentioned picture size adjuster 1231 will be greatly increased, and when When the scaling factor (scaling factor) is less than about 0.7, line loss may occur, that is, a certain horizontal scan line will not be referenced by any redefined new scan line, as shown in Figure 2(b) Pixels are used to illustrate, where P12 will not be referenced by the redefined P21 and P22, so the color information of P12 will be lost due to resizing, resulting in poor image quality after reduction

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Embodiment Construction

[0034] Fig. 3 (a) is a functional block schematic diagram of a preferred embodiment of the present invention, wherein a progressive scanning display image data input by a color space converter 322 is first received and processed by a fuzzy filter device 323, its main The color value of each pixel in the progressive scan display image data is replaced by a combined value of the pixel and its adjacent pixel color values, and then a progressive scan display image processed by a blur filter is obtained. Afterwards, the frame size adjuster 324 re-adjusts the frame size of the progressive scan display image data processed by the blurring filter, and finally converts it into the interlaced scan display image data for output.

[0035]FIG. 3(b) is a functional block diagram of a preferred embodiment of the above-mentioned blur filter device 323, which is mainly composed of two line buffers 3231, 3232, which are used to store the progressive scan display image data respectively. Two hor...

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Abstract

The image processing method and device is used to convert progressive scanned and displayed image data into interlaced scanned and displayed image data. The device includes a fuzzy filter lens unit, a scanning size regulator and a converter. The method includes the following steps: receiving progressive scanned and displayed image data; substituting the color value of each pixel with a combined value of the color values of the said pixel and adjacent pixels so as to obtain fuzzy filter lens processed progressive scanned and displayed image data; regulating the picture size to obtain new progressive scanned and displayed image data; and converting the new progressive scanned and displayed image data into interlaced scanned and displayed image data for output.

Description

technical field [0001] The present invention relates to an image processing method and device, in particular to an image processing method and device used in the process of converting a progressive scan display image data into an interlaced scan display image data. Background technique [0002] With the rapid development of manufacturing technology, the personal computer has become a necessary product for people's life. It has powerful computing power, and users can use it to complete the functions of many other electronic products. Utilizing a personal computer to play laser video discs such as VCD and DVD is an example, but usually because the size of the display screen of the personal computer is too small, it is inconvenient to watch in practice. Important function of graphics cards in personal computers. [0003] FIG. 1(a) is a partial functional block diagram of a display adapter, wherein a graphic chip (graphic chip) 10 outputs a parallel digital signal of pixel data...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T1/00
Inventor 李娟祯戴嘉良黄逸杰
Owner VIA TECH INC
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