Image digital compressing and amplifying system

An image scaling and image technology, applied in image communication, static cameras, electrical components, etc., can solve the problems of not supporting image digital scaling, etc., and achieve the effects of easy hardware implementation, strong practicality, and low cost

Inactive Publication Date: 2006-08-02
VIMICRO CORP
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent CN2736865 discloses a digital image zoom-in or zoom-out method, and this method is applied to an image photographing system, which can zoom the image and perform display processing and compression storage processing, which can meet some requirements of digital image photographing Basic applications, such as taking pictures, displaying, etc.; but it does not support digital scaling of images. The present invention expands on the basis of the above-mentioned patents, and provides a low-cost, easy-to-hardware WYSIWYG digital image scaling system

Method used

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  • Image digital compressing and amplifying system
  • Image digital compressing and amplifying system
  • Image digital compressing and amplifying system

Examples

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Embodiment Construction

[0025] like figure 1 As shown, when digitally scaled, the original image changes from figure 2 The image sensor 1 in the input is converted into YUV422 data through modules such as interpolation and color space conversion, and the digital scaling is processed in the color space of YUV422. first in figure 1 Take a window (source window) from the input image (input image), only process the image in the window, use two image size converters to enlarge or reduce the input image in the window, and send the output image to the Display it on the LCD screen, or send it to the capture module for capture.

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Abstract

An enlargement and contraction system of image digit comprises image transducer, image pretreatment unit, control unit of image enlargement and contraction, enlargement and contraction unit of display image, image display unit, enlargement and contraction unit of compressed image and image compression storage. It is featured as using display image pantograph to enlarge or contract image from image enlargement and contraction controller then outputting it to display unit, using enlargement and contraction unit of compressed image to enlarge or contract image from said controller then outputting it to said storage.

Description

technical field [0001] The invention relates to the field of image processing, in particular to the field of image digital scaling. Background technique [0002] When taking pictures, we usually need to adjust the size of the image in the viewfinder by adjusting the lens; when the user selects an image with a suitable size, he can take the current image. This method of zooming in or out of an image through a lens is called "optical zooming." However, for low-cost or miniature camera devices, such as mobile phones, which usually do not have an optical lens, digital zooming technology must be used at this time. The so-called "digital zoom" means that when taking digital images, instead of reducing or enlarging the size of the photographed object by changing the lens, the image in the viewfinder and the captured image are enlarged or reduced by digital processing. Chinese patent CN2736865 discloses a method for enlarging or reducing a digital image, and this method is applied...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N1/387H04N1/41H04N101/00
Inventor 李国新腰建勋俞青
Owner VIMICRO CORP
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