Image privacy protection method, apparatus and device

An image privacy protection apparatus, comprising:

• a content recognition module, configured to perform privacy content recognition on an original image;
• a region determining module, configured to, in response to a privacy content being recognized, determine a local region including the privacy content from the original image;
• an image processing module, configured to perform privacy protection processing on image data for the local region;
• and
• an image compression module, configured to perform image compression processing on the data of the privacy-protected original image to generate data of a compressed image, and use the compressed image as image data to be transmitted or stored,
• wherein the privacy protection processing on the image data for the local region includes at least one of:
• encrypting the image data for the local region by using a nonlinear hyperchaotic system to obtain first encrypted image data, superimposing the first encrypted image data and the image data for the local region to obtain first scrambled image data, and rearranging a data order of the first scrambled image data to obtain first obfuscated image data;
• or
• rearranging a data order of the image data for the local region to obtain second obfuscated image data, encrypting the second obfuscated image data by using a nonlinear hyperchaotic system to obtain second encrypted image data, and superimposing the second encrypted image data and the image data for the local region to obtain second scrambled image data.

An image privacy protection device, comprising:

• a processor;
• and
• a memory storing computer-executable instructions that, when executed by the processor, enable the processor to implement acts including:
• performing privacy content recognition on an original image;
• in response to a privacy content being recognized, determining a local region including the privacy content from the original image;
• performing privacy protection processing on image data for the local region to generate data of a privacy-protected original image;
• and
• performing image compression processing on the data of the privacy-protected original image to generate data of a compressed image, and using the data of the compressed image as image data to be transmitted or stored,
• wherein the performing the privacy protection processing on the image data for the localregion includes at least one of:
• encrypting the image data for the local region by using a nonlinear hyperchaotic system to obtain first encrypted image data, superimposing the first encrypted image data and the image data for the local region to obtain first scrambled image data, and rearranging a data order of the first scrambled image data to obtain first obfuscated image data;
• or
• rearranging a data order of the image data for the local region to obtain second obfuscated image data, encrypting the second obfuscated image data by using a nonlinear hyperchaotic system to obtain second encrypted image data, and superimposing the second encrypted image data and the image data for the local region to obtain second scrambled image data.

A non-transitory storage medium having computer-executable instructions stored thereon that, when executed by a processor, configure the processor to implement acts including:

• performing privacy content recognition on an original image;
• in response to a privacy content being recognized, determining a local region including the privacy content from the original image;
• performing privacy protection processing on image data for the local region to generate data of a privacy-protected original image;
• and
• performing image compression processing on the data of the privacy-protected original image to generate data of a compressed image, and using the compressed image as image data to be transmitted or stored,
• wherein the performing the privacy protection processing on the image data for the localregion includes at least one of:
• encrypting the image data for the local region by using a nonlinear hyperchaotic system to obtain first encrypted image data, superimposing the first encrypted image data and the image data for the local region to obtain first scrambled image data, and rearranging a data order of the first scrambled image data to obtain first obfuscated image data;
• or
• rearranging a data order of the image data for the local region to obtain second obfuscated image data, encrypting the second obfuscated image data by using a nonlinear hyperchaotic system to obtain second encrypted image data, and superimposing the second encrypted image data and the image data for the local region to obtain second scrambled image data.