Method and device for scaling images

An image scaling and processing method technology, applied in the field of image processing, can solve the problems of complex hardware design, high power consumption, poor performance, etc., and achieve the effect of simplifying processing work, reducing area and power consumption, and reducing design complexity

Inactive Publication Date: 2012-07-11
深圳市海泰康微电子有限公司
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Problems solved by technology

[0003] The present invention provides an image scaling processing method and device, which solves the problem of poor performance caused by simply using software processing in the prior

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  • Method and device for scaling images
  • Method and device for scaling images
  • Method and device for scaling images

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[0022] In order to better understand the technical solutions of the present invention, the embodiments provided by the present invention will be described in detail below with reference to the accompanying drawings.

[0023] The embodiment of the present invention provides an image zoom processing method, such as figure 1 As shown, the method includes steps:

[0024] S110. The CPU first initializes the ASIC (application specific integrated circuit);

[0025] In other embodiments, the initialization process specifically includes: the CPU resets the ASIC, writes control information, and calculates a set of information for each pixel required for scaling the current image, and converts the The calculated pixel information is written into the first memory, and the set of each pixel information required for current scaling includes: information of each pixel in the horizontal direction of the current output image, information of each pixel in the vertical direction of the current output i...

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Abstract

The invention provides a method and a device for scaling images. The method comprises the following steps that: a central processing unit (CPU) initializes an application specific integrated circuit (ASIC); and the ASIC reads required pixels for scaling from an input image in a double data rate (DDR) memory according to the information of an image pixel information table in a first memory, filters read pixels and writes the pixels back to the DDR memory, and one frame of image is scaled. By the method and the device, the problem of poor performance caused by only adopting software processing in the prior art is solved, and problems of the complex design, inflexible processing, large area, high power consumption and the like of the ASIC caused by only adopting ASIC processing are solved simultaneously.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to an image scaling processing method and device. Background technique [0002] Existing image processing technology, the realization method can be classified into 2 kinds, and a kind of method is the processing method of pure software, sees and uses in DSP (data processor) and CPU processor more, and this method handles flexibly, but the shortcoming is The performance of the computing unit consumed is very high; the other method is the hardware processing method, which is also the mainstream method of image processing at present. The advantage of this method is that it does not occupy the performance of the computing unit and processes data quickly. The design is complicated, the processing is not flexible, and the hardware resources consumed are large and the area is large. Contents of the invention [0003] The present invention provides an image scaling proce...

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Application Information

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IPC IPC(8): G06T3/40
Inventor 杨开
Owner 深圳市海泰康微电子有限公司
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