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Method for improving quality of enlarged image

A technology for magnifying images and quality, applied in image enhancement, graphic image conversion, image data processing, etc.

Active Publication Date: 2019-06-21
VIEWSIL MICROELECTRONICS KUSN
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  • Claims
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Problems solved by technology

[0003] The purpose of this disclosure is to propose a method for improving the quality of the enlarged image, which overcomes the blurred edge of the enlarged image in the traditional image enlargement method by improving the sharpness of the edge of the enlarged image Defects

Method used

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  • Method for improving quality of enlarged image
  • Method for improving quality of enlarged image

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Embodiment Construction

[0041] Embodiments of the invention are discussed in detail below. It should be appreciated, however, that the embodiments provide many applicable concepts that can be implemented in a wide variety of specific contexts. The discussed and disclosed embodiments are for illustration only and are not intended to limit the scope of the present invention.

[0042] In an embodiment of the present disclosure, an original image including a plurality of original pixels is enlarged into an enlarged image including a plurality of new pixels. For example, suppose there is an original image containing 3×3 original pixels, and it is enlarged by 4 / 3 times to become an enlarged image containing 4×4 new pixels. A relatively easy-to-understand image enlargement concept is: place a fictitious 4×4 grid on the original image; then, use a certain method to assign all the values ​​of each grid; finally, expand these grids to the size of the enlarged image . In this way, the enlarging operation of ...

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Abstract

The invention relates to a method for improving enlarged image quality. The method is used for improving the edge definition of an enlarged image enlarged from an original image, wherein the originalimage comprises a plurality of original pixels, the enlarged image comprises a plurality of new pixels, and the method for improving the quality of the enlarged image comprises the following steps: carrying out image edge detection on a target pixel region in the original image so as to judge whether the target pixel region comprises an image edge or not; and when the target pixel region comprisesthe image edge, carrying out image definition adjustment on a plurality of new pixels corresponding to the target pixel area and in three adjacent pixel areas partially overlapped with the target pixel area in the enlarged image, wherein the target pixel area and the adjacent pixel area are the same in size, and each of the target pixel area and the adjacent pixel area comprises one of a plurality of identical original pixels.

Description

technical field [0001] Embodiments of the present disclosure relate to a method for improving the quality of an enlarged image, and in particular to a method for improving the edge definition of the enlarged image. Background technique [0002] In order to enlarge an image with a smaller size to an image with a larger size, you can first find the position of a new pixel according to the magnification factor based on the pixel position of the original image, and then based on multiple adjacent pixels of the original image The color value of the new pixel is estimated and filled, that is, pixel interpolation (Interpolation). There are many different algorithms for the above-mentioned pixel interpolation, among which the most commonly used are the nearest neighbor interpolation algorithm and the bilinear interpolation algorithm. The nearest neighbor interpolation algorithm is the simplest and fastest algorithm, but the resulting zoomed-in images exhibit obvious artifacts such ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00G06T3/40
Inventor 张殿胜周彤尧
Owner VIEWSIL MICROELECTRONICS KUSN
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