A method for image processing, comprising: determining one or more protected areas in an original picture to be processed; protecting image data of the one or more protected areas by adding access rights, so as to obtain one or more independent sub-image data corresponding to the one or more protected areas; shielding the one or more protected areas in the original picture to obtain main image data, wherein shielding is changing the original image data to make it inaccessible; and associatively storing the one or more obtained independent sub-image data and the obtained main image data; wherein protecting image data of the one or more protected areas by adding access rights comprises: determining access rights for the one or more protected areas, and extracting image data of each protected area from the original picture; and coding the image data of each protected area by adding access right according to the access right for each protected area, so as to obtain independent sub-image data corresponding to each protected area; and before the image data of each protected area is protected by adding the access right, the method further comprises: determining at least one sub-protected area in the one or more protected areas, wherein in the process of protecting the image data of the one or more protected areas by adding the access rights, the step of determining the access rights for the one or more protected areas comprises a step of determining an access right for at least one sub-protected area in the one or more protected areas; and the step of coding the one or more protected areas by adding access right comprises a step of independently coding image data of the at least one sub-protected area by adding access right according to the access right for the at least one sub-protected area. determining one or more protected areas in an original picture to be processed; protecting image data of the one or more protected areas by adding access rights, so as to obtain one or more independent sub-image data corresponding to the one or more protected areas; shielding the one or more protected areas in the original picture to obtain main image data, wherein shielding is changing the original image data to make it inaccessible; and associatively storing the one or more obtained independent sub-image data and the obtained main image data; wherein protecting image data of the one or more protected areas by adding access rights comprises: determining access rights for the one or more protected areas, and extracting image data of each protected area from the original picture; and coding the image data of each protected area by adding access right according to the access right for each protected area, so as to obtain independent sub-image data corresponding to each protected area; and before the image data of each protected area is protected by adding the access right, the method further comprises: determining at least one sub-protected area in the one or more protected areas, wherein in the process of protecting the image data of the one or more protected areas by adding the access rights, the step of determining the access rights for the one or more protected areas comprises a step of determining an access right for at least one sub-protected area in the one or more protected areas; and the step of coding the one or more protected areas by adding access right comprises a step of independently coding image data of the at least one sub-protected area by adding access right according to the access right for the at least one sub-protected area. determining access rights for the one or more protected areas, and extracting image data of each protected area from the original picture; and coding the image data of each protected area by adding access right according to the access right for each protected area, so as to obtain independent sub-image data corresponding to each protected area; and before the image data of each protected area is protected by adding the access right, the method further comprises: determining at least one sub-protected area in the one or more protected areas, wherein in the process of protecting the image data of the one or more protected areas by adding the access rights, the step of determining the access rights for the one or more protected areas comprises a step of determining an access right for at least one sub-protected area in the one or more protected areas; and the step of coding the one or more protected areas by adding access right comprises a step of independently coding image data of the at least one sub-protected area by adding access right according to the access right for the at least one sub-protected area.