Abstract: An image augmentation method for providing a modified display image to compensate for an oblique viewing angle by measuring a viewing position of a viewer relative to a display screen; calculating a three-dimensional position of the viewer relative to the display screen; calculating an angular position vector of the viewer relative to the display screen; generating a rotation matrix as a function of the angular position vector; calculating a set of perimeter points; generating a modified image as a function of a normal image and the previously calculated perimeter points; and rendering the modified image on the display screen.