The present invention provides a method for encoding an image and corresponding terminals. The method includes steps of: determine the related coding information of the raw image to be processed according to the feature information of the raw image to be processed; and encode the raw image to be processed according to the related coding information. In the present invention, the encoded raw image is transmitted to a cloud server via network, and the decoded and reconstructed raw image is optimized by the ISP module in the cloud server. Compared with the prior art where complex algorithms cannot be implemented by the ISP module in the terminal due to the limitation of its computing capacity, the present invention significantly improves the perceptual quality of the user viewing image by adopting more sophisticated image processing algorithms, while increasing the image compression ratio.