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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.

Inactive Publication Date: 2007-08-22
VIMICRO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of shading processing requires an additional processing unit, which is complex and costly to implement

Method used

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  • Method and device for realizing image hiding
  • Method and device for realizing image hiding
  • Method and device for realizing image hiding

Examples

Experimental program
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Embodiment 1

[0050] In Embodiment 1 and Embodiment 2, the masking of the image is realized by the out-of-order method, and an embodiment of realizing the masking of the image by the method of data replacement is given below.

[0051] FIG. 6 is a structural diagram of a device for implementing masking processing in Embodiment 3. FIG. Based on the structure shown in Figure 1, the device further includes a masking parameter setting unit and a data replacement circuit in the row image data storage unit. The parameters of the masked area are set in the masking parameter setting unit. The data replacement circuit receives the position information of each image data in the image from the input image row and column counter, and determines the current row input image that needs to be stored in the memory according to the position information of each image data and the parameters of the masking area set by the masking parameter setting unit Whether the data signal is the image data in the shaded ar...

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/24H04N7/26H04N19/20
Inventor 周天夷
Owner VIMICRO CORP
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