Method and apparatus for adjusting image distortion

摘要

A method and apparatus for adjusting image distortion is disclosed. In the adjustment process: a test pattern image is first output to a display device; the test pattern image appearing on the screen of the display device is captured by a image-capturing device; the image signal is output to a computer to calculate the distortion factor in relation to a display device, based on which a compensation factor is derived from its inverse relation; and the compensation factor is added to the actual image signal and output to the display device. The image output on the screen of the display will be a distortion-free image, due to the canceling of the deflection tendency on the display device by the compensated image signals.