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Interpolation processing method for digital image

A technology for interpolation processing and digital images, which is applied in the field of compressed storage of digital image interpolation parameters, can solve the problems of large amount of computation, large storage space, time-consuming, etc., and achieve the effect of increasing interpolation processing speed and reducing storage space

Inactive Publication Date: 2006-03-22
PRIMAX ELECTRONICS LTD
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Problems solved by technology

[0004] Although the effect of these two algorithms is good, they are the most time-consuming. They belong to regional calculations, and the amount of calculation is relatively large. When image scaling requires interpolation, the processing speed is relatively low, and usually the number of parameters is relatively large, and the storage space occupied during storage is very large.

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  • Interpolation processing method for digital image
  • Interpolation processing method for digital image
  • Interpolation processing method for digital image

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Embodiment Construction

[0038] see first figure 1 , is an overall flowchart of the digital image interpolation processing method of the present invention. As shown in the figure, the present invention adopts a high-speed interpolation algorithm. In step 110, the blank area of ​​the original pixel is first divided into multiple squares. In step 120, according to the position of the square, the center point corresponding to the square is calculated in advance. the interpolation parameters, use the interpolation parameters as the interpolation parameters of all points in the grid, step 130, then compress and store these interpolation parameters, step 140, when interpolating, only need to judge the grid where the interpolation points fall into, step 150. After decompressing the interpolation parameters of the grid, step 160, perform interpolation calculation according to the interpolation parameters and the luminance value of the sampling point, so as to improve the interpolation speed and reduce the sto...

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Abstract

The interpolation treating process for digital image includes the following steps: separating the blank area between pixels into even checkers, determining the interpolation parameters of sampling points according to the position of the current checker, compressing and storing all the interpolation parameters of the checkers relatively to the sampling point, zooming image to determining the target checker the interpolation point falls in, decompressing the interpolation parameter based on the position of the target checker to calculate the checker corresponded interpolation parameter, and calculating the brightness value based on the interpolation parameter and the brightness value of the sampling point. The present invention can raise interpolation treating speed, and compress interpolation parameter before storing for less storing space.

Description

technical field [0001] The invention relates to a compression storage method, in particular to a compression storage method of digital image interpolation parameters. Background technique [0002] Interpolation is to determine the information of gap points between known points in the image. We all know that an image is composed of pixels. When we zoom in, zoom out or rotate an image, the original pixels will be rearranged and some new pixels will be generated. Therefore, interpolation is needed to reduce the damage to the original image after geometric transformation of the image. The interpolation method is the method used when the image redistributes pixels, and the purpose is to determine the information of the gap points between the known points in the image. [0003] There are many traditional digital image interpolation methods, and the two most common high-resolution interpolation methods are Bicubic calculation method (bicubic interpolation) and Bilinear calculatio...

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Application Information

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IPC IPC(8): G06T3/40
CPCG06T3/4007
Inventor 高月
Owner PRIMAX ELECTRONICS LTD
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