Image processing method and image display device

An image display device, comprising:

• a body;
• a display screen disposed on the body;
• a lens disposed on the body, wherein the lens is closer to a human eye than the display screen when the image display device is worn, and the lens has a plurality of distortion coefficients;
• and
• an image processor disposed on the body, wherein the image processor is coupled to the display screen, and the image processor is configured to:
• divide a display region of the display screen into a plurality of image regions according to the plurality of distortion coefficients of the lens, so that an outer boundary line of each image region encloses a polygon, a geometric center of the polygon enclosed by the outer boundary line of the image region coincides with a geometric center of the lens, and distortion coefficients of positions of the lens on which vertexes of the polygon enclosed by the outer boundary line of the image region are mapped are the same;
• and perform anti-distortion processing on coordinates of vertexes of the image region according to a distortion coefficient corresponding to the vertexes of the image region, so as to obtain texture coordinates of the vertexes of the image region.