An Encryption and Decryption Method of Image Sequence
A technology of image sequence and pixel value sequence block, which is applied in the field of decryption and image sequence encryption, which can solve the problems of reducing the encoding compression rate, the encryption algorithm has a small space occupation, and the calculation amount is large, so as to solve the encoding compression rate and avoid security. Insufficient performance and small amount of data processing
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Embodiment 1
[0063] like image 3 As shown, an image sequence encryption and decryption method is to concatenate pixel values with the same pixel bit order in an image sequence with an arbitrary length of frames to form a pixel value sequence block.
[0064] Specifically: in the image sequence, the positions of the first pixel position, the second pixel position, the third pixel position, and the nth pixel position in each frame of the image are positioned and expressed sequentially through coordinates, according to the frame The bit order information of the inner image pixels is the bit order information formed by the known bit order information existing in the image sequence. For the description of the target result example, let the vector Z be the time vector of the demonstration image sequence, and at the same time be the expression of the image sequence The frame sequence vector of , taking six pixel positions for each frame of image as an example, the pixel bit sequence is WX1, WX2...
Embodiment 2
[0084] As shown in 6, an image sequence encryption / decryption method is to concatenate pixel values with the same pixel bit sequence in consecutive frames of images in the image sequence to form a "pixel value sequence block".
[0085] Specifically: in the image sequence, the positions of the first pixel position, the second pixel position, the third pixel position, and the nth pixel position in each frame of the image are positioned and expressed sequentially through coordinates, according to the frame The bit order information of the inner image pixels is the bit order information formed by the known bit order information existing in the image sequence. For the description of the target result example, let the vector Z be the time vector of the demonstration image sequence, and at the same time be the expression of the image sequence The frame sequence vector of , taking six pixel positions for each frame of image as an example, the pixel bit sequence is WX1, WX2, WX3, WX4,...
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