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Method and device for image enlargement or reduction by shared hardware

A technology for sharing hardware and images, which is applied in image data processing, graphics and image conversion, cathode ray tube indicators, etc., and can solve problems such as complex hardware architecture, increased cost, and failure to meet the actual needs of the industry

Active Publication Date: 2011-12-21
HUIGUO SHANGHAI SOFTWARE TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this can obtain optimized images, it will greatly increase the cost and does not meet the actual needs of the industry
In addition, the industry has different approaches to image scaling, and some even assign image reduction and enlargement to different hardware, which often makes the hardware architecture quite complicated and inefficient.

Method used

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  • Method and device for image enlargement or reduction by shared hardware
  • Method and device for image enlargement or reduction by shared hardware
  • Method and device for image enlargement or reduction by shared hardware

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Embodiment Construction

[0034] In order to make the purpose, features, and advantages of the present invention more comprehensible, preferred embodiments are specifically cited below and described in detail with accompanying drawings. The description of the present invention provides different examples to illustrate the technical features of different implementations of the present invention.

[0035] figure 1 It is a structural diagram of the image processing system 100 according to the present invention. The image source 101 in the figure provides an image having a plurality of pixels corresponding to a two-dimensional array having a plurality of columns and a plurality of rows (in this embodiment, for example, having M columns and N rows), and The format of these pixels can be classified into YUV pixel format and RGB format to express the color density and information in the video image. The image processor 103 receives data from the image source 101 and performs various image processing functio...

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PUM

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Abstract

The invention provides an image processing method and device, which can share hardware for image enlargement or reduction. The apparatus of the present invention includes a column buffer, a first variable, a second variable and a scaler. The scaler is used to cooperate with the column buffer and the first and second variables to enlarge or reduce the image. The scaler executes a reduction procedure to reduce the image, or executes an enlargement procedure to enlarge the image.

Description

technical field [0001] The present invention relates to an image processing method, in particular to a method for image enlargement or reduction by shared hardware. Background technique [0002] With the development of multimedia, people's demand for image processing has increased dramatically. Image processing includes multiple aspects, one of which is scaling down or scaling up the input image (referred to as image scaling), and the hardware performing this function is a scaler. [0003] For image scaling applications, such as image scaling of network maps, both speed and accuracy are often required. Therefore, how to perform image scaling and achieve real-time and undistorted requirements as much as possible is an important issue. [0004] However, one of the methods for image scaling, for example, is to completely store all pixel data in the image in a high-capacity memory, and then cooperate with a high-speed processor to perform calculations. Although this move can o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G5/00G09G5/02G09G5/373G06T3/40
Inventor 陈永纬
Owner HUIGUO SHANGHAI SOFTWARE TECH