Patent ID: 8208760

Claim:
An image resolution adjustment method, for receiving a source resolution Vi from a source image and a display resolution Vo, comprising the steps of: performing a predetermined selection rule in a scaling phase to generate a scaling value set based on said source resolution Vi and said display resolution Vo for outputting a scaled image; and determining whether or not said scaled image is smoothed based on a variety of application requirements of display in a smoothing phase; wherein said predetermined selection rule comprises: a first decision to determine whether or not a first scaling mode is selected based on said source resolution Vi and said display resolution Vo; a second decision to determine whether or not a second scaling mode is selected based on said source resolution Vi and said display resolution Vo; and a third decision to determine whether or not a third scaling mode is selected based on said source resolution Vi and said display resolution Vo; wherein said first decision is set to TRUE if both conditions below are satisfied ( Vo−Vi )<=(2* Vi ), and ( Vo/Vi )= n , where n is not an integer; wherein said second decision is set to TRUE if three conditions below are satisfied ( Vo−Vi )>(2* Vi ), ( Vo/Vi )= n , where n is not an integer, and (7* Vi )>(2* Vo ); and wherein said third decision is set to TRUE if three conditions below are satisfied ( Vo−Vi )>(2* Vi ), ( Vo/Vi )= n , where n is not an integer, and (7* Vi )<=(2* Vo ).