Patent ID: 8320703
Filing Date: 2012-11-27
Classification: G06T

Abstract:
1. A method of executing image processing to correct a non-uniform perceived resolution caused by image distortion correction with different magnification ratios in an image, thereby achieving a uniform perceived resolution over the image, the method comprising: adding a variable-frequency-band aperture compensation signal to a mainline signal at a stage prior to the image distortion correction, the variable-frequency-band aperture compensation signal corresponding to a frequency band in which an aperture compensation signal is lost by the image distortion correction; calculating distortion correcting data when a partial conversion of magnification ratio is applied to the image caused by the image distortion correction; and executing image processing on the image at a stage subsequent to the image distortion correction, using the aperture compensation signal generated on the basis of a step-valued aperture compensation gain calculated using the calculated distortion correcting data used in the image distortion correction, wherein,