Image reading and writing method and device, electronic equipment and storage medium

The invention provides an image reading and writing method and device, a storage medium and electronic equipment. The method comprises the following steps: obtaining a first address parameter of a target sub-image which is a to-be-convolved sub-image in a plurality of sub-images contained in the target image, wherein the first address parameter is used for determining a first external storage address of the target sub-image in a target external storage; enabling an external memory to an internal memory to calculate a first external memory address of the target sub-image in the target externalmemory through an address calculator according to the first address parameter; and reading the target subimage from the target external memory according to the first external memory address, and writing the target subimage into the first memory address in the target memory. A large amount of CPU operation does not need to be consumed, and the technical effects of saving CPU resources and improvingthe execution efficiency