Method and device for realizing image hiding

An image and image data technology, applied in the field of image masking, can solve the problems of high cost and complex implementation, and achieve the effect of low cost, simple implementation and good masking effect.
CN101022549AInactive Publication Date: 2007-08-22VIMICRO CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
VIMICRO CORP
Publication Date
2007-08-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

A method for covering image includes setting parameter of covering area, confirming image data of covering area to cover image data at covering area according to column / line control signal of image and set parameter of covering area in conversion process between line image data signal and block image data signal at image compression / decompression course. The device used for realizing said method is also disclosed.
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Description

technical field

[0001] The present invention relates to image processing technology, in particular to a method and device for realizing image masking. Background technique

[0002] Image processing usually includes compression and decompression. In the process of image compression, the compression algorithm often operates on block images, and the input image is often scanned in a progressive manner. Therefore, it is necessary to convert the image data input line by line into piece by piece image data and send them to the image compression unit for processing. compression. In the same way, in the process of image decompression, the decompression algorithm often operates on block images, and outputs them piece by piece after decompression, while the display device generally only receives image data input line by line, and performs progressive and interlaced scanning. Therefore, it is necessary to convert the decompressed block-by-block image data into line-by-line image data...

Claims

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