The disclosure provides an information processing method applied to an electronic device. The method comprises: performing edge detection on a first image to obtain edge strength values for respective pixels of the first image; determining, according to the edge strength values of the pixels, a main information region of the first image; cropping, according to the main information region, the first image to obtain a second image which includes the main information region; and setting the second image as a background image for a graphical interactive interface of the electronic device, wherein the graphical interactive interface includes N controls, N being a positive integer.