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Method for implementing image copyright control

An image and copyright technology, applied in image data processing, image data processing, instruments, etc., can solve problems such as inability to solve images

Inactive Publication Date: 2005-11-02
YINGHUADA (SHANGHAI) ELECTRONIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If it is an unauthorized user, the correct image cannot be decoded after downloading

Method used

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  • Method for implementing image copyright control
  • Method for implementing image copyright control
  • Method for implementing image copyright control

Examples

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Embodiment Construction

[0012] In order to make the purpose, features and advantages of the present invention more comprehensible, a preferred embodiment is listed in the following text, together with the accompanying drawings, and described in detail as follows.

[0013] The preferred embodiment of the present invention discloses a method of image copyright control, please refer to Figure 1a , which shows a schematic diagram of the encryption process of a preferred embodiment of the present invention. Then please refer to Figure 1b , which shows a schematic diagram of the decryption process in a preferred embodiment of the present invention. and figure 2 A schematic diagram of the encryption and decryption process of the preferred embodiment of the present invention is shown. The preferred embodiment of the present invention encrypts the image so that only authorized users can decrypt it correctly.

[0014] The encryption algorithm of encryption step comprises five functions: an initial conver...

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Abstract

The present invention relates to method to realize control for image copyright. During making process for image standard, on the condition that not add data quantity and change image quality, use key and enciphered function to encipher the image; the user with authorization that is with key then can use the key to decipher the image to show accurately image; for user without authority, they have not key to decipher and can not show and use the image; thereby, it comes to the purpose of copyright control.

Description

technical field [0001] The invention relates to a method for realizing image copyright control, in particular to an image encryption and decryption method. Background technique [0002] Along with the popularization of network and computer, image downloading function is also favored by the majority of users. An image is a digital product, and it also has copyright. When the finished image is transmitted on the network, the producer cannot prevent unauthorized users from reading and modifying the image arbitrarily, which makes the image can be downloaded, copied and distributed arbitrarily. use. For example, images are elaborately produced and placed on websites as products for downloading, and through downloading, the images will be read and copied arbitrarily, so the copyright of the images cannot be effectively protected. [0003] If the image can be encrypted by an algorithm in the form of a data stream during the production process, and the image is placed on an author...

Claims

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Application Information

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IPC IPC(8): G06T1/00
Inventor 史新轲任真何代水
Owner YINGHUADA (SHANGHAI) ELECTRONIC CO LTD
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