Image processing equipment and image data interpolating method

A technology for image data and image processing, applied in image communication, television, standard conversion, etc., can solve problems such as blurred edges, inability to reflect maximum or minimum values, poor display results, etc.

Inactive Publication Date: 2008-12-03
AU OPTRONICS CORP
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Problems solved by technology

However, in the above method, only the difference between pixel values ​​is used as the judgment condition, which cannot reflect the situation that one of the pixels between the adjacent pixels of the interpolation point has a maximum value or a minimum value, nor can it be used for interpolation. Consider the distance

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  • Image processing equipment and image data interpolating method
  • Image processing equipment and image data interpolating method
  • Image processing equipment and image data interpolating method

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Embodiment Construction

[0027] Please refer to figure 1 , is a block diagram of an image processing device 1 according to the first embodiment of the present invention. The image processing device 1 includes: a receiving module 100, an edge pixel point judgment module 102, an interpolation point position generation module 104, an edge judgment module 106, a position judgment module 108, an interpolation point pixel value generation module 110 and A selection module 112 . The receiving module 100 is used to receive an image data 101, the image data 101 includes pixel point data 103 of a plurality of pixels; the edge pixel point judging module 102 is used to judge whether a pixel value of each pixel point is an edge according to the pixel point data 103 pixels to generate an edge pixel judgment result 105 . Please refer to figure 2 , is a schematic diagram of a range of pixel values. The range of pixel values ​​can be divided into a minimum range of pixel values ​​between 0-16, an intermediate ran...

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Abstract

The invention provides an image processing device and an image data interpolating method. The image processing device comprises a receiving module, an edge pixel point judging module, an interpolation point position generating module, an edge judging module, a position judging module and an interpolation point pixel value generating module. The receiving module is used for receiving the image data including a plurality of pixel points; the edge pixel point judging module is used for judging whether the pixel value of each pixel point belongs to an edge pixel point; the interpolation point position generating module is used for generating a plurality of interpolation point positions so as to produce position relation data between each interpolation point position and four neighboring pixel points; the edge judging module is used for judging whether each interpolation point and the four neighboring pixel points have edges so as to generate edge relation data; the position judging module is used for judging whether each interpolation point is positioned in a central area according to the position relation data; the interpolation point pixel value generating module is used for generating a pixel value for each interpolation point according to the position relation data and the edge relation data so as to finish generating each interpolation point. The method of the invention takes advantages of the edge relation data and the position relation data, considers the happening status of an extremum point and chooses different algorithms according to the position to adjust the pixel value of the interpolation point, thereby maintaining the image sharpness after interpolation.

Description

technical field [0001] The present invention relates to an image processing device, and in particular to an image processing device and an image data interpolation method. Background technique [0002] In various technologies in the field of image processing, in order to increase the frame rate, it is often necessary to interpolate the image data to further improve the frame quality. The so-called interpolation is to insert new pixels between the pixels of the original image, that is, interpolation points. In the image interpolation method in the prior art, the edge portion in the image is determined by judging whether the difference between the pixel values ​​of each other is greater than a critical value between the pixels of the original image. Whether the edge part can be completely displayed on the display frame determines the sharpness of the display frame. The determination of the pixel of the interpolation point is based on whether the adjacent pixels around the po...

Claims

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Application Information

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IPC IPC(8): H04N5/44H04N7/01
Inventor 黄世雄
Owner AU OPTRONICS CORP
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