Image coding and decoding methods and devices, electronic equipment and computer readable medium

Abstract

The invention provides image coding and decoding methods and devices, electronic equipment and a computer readable medium. The image coding method comprises the steps that an image coder processes a target image by utilizing a first convolutional neural network to obtain high-dimensional features of the target image, wherein network structure parameters of the first convolutional neural network are randomly generated in advance; and the high-dimensional features are sent to an image decoder. The technical effects, that only the high-dimensional features are transmitted in the process of transmitting the image to the image decoder by the image coder, the image decoder can reconstruct the target image based on the high-dimensional features only by using a second convolutional neural networkconfigured according to the network structure parameters sent by the image encoder, a third party cannot reconstruct the target image even if part or all of the high-dimensional features are capturedin the image transmission process, and encrypted transmission of the image is realized, are achieved.

Description

technical field [0001] The present invention relates to the technical field of image information processing, in particular to an image encoding and decoding method, device, electronic equipment and computer-readable medium. Background technique [0002] Digital image is one of the most popular forms of multimedia at present, and it is widely used in politics, economy, national defense, education and so on. For some special fields, such as military, commercial and medical, digital images generally have high confidentiality requirements. [0003] In order to realize the security of digital images, in practical applications, the sender generally encodes the input image according to the preset encoding rules, and after the receiver receives the encoded image, the receiver then encodes the encoded image according to the decoding rule corresponding to the encoding rule. Decode to get the input image. [0004] However, when encoding and decoding images, the encoding rules and dec...

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Problems solved by technology

[0005] In view of this, the purpose of the present invention is to provide an image encoding and decoding method, device, electronic equipment and computer-readable medium, so as to alleviate the problems existing in the prior art that the encoded image is easily decoded by a third party during the transmission process, resulting in image Technical issues with low security

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