An image displaying method including: obtaining an image to be displayed, dividing equally the image into a plurality of first sub-images along a first reference direction, and then obtaining position information of a view point relative to the display device, an angle of sight line and parameter information of a first virtual section line segment of the display device, and then calculating a compensation ratio along the first reference direction for each first sub-image of the image, and then compensating each first sub-image along the first reference direction according to the compensation ratio, and displaying the image on the display device, so that the compensated first sub-images are viewed at the view point as having the same size along the first reference direction.