Patent ID: 7551226

Claim:
An image signal conversion apparatus for converting a first image signal including a plurality of pixel data into a second image signal including a plurality of pixel data, said image signal conversion apparatus comprising: first data selection means for selecting, from said first image signal, a plurality of first pixel data adjacent to a subject pixel of said second image signal; class detection means for detecting a class of said subject pixel based on a plurality of said first pixel data selected by said first data selection means, wherein said class detection means detects a level distribution pattern of a plurality of said first pixel data and detects said class of said subject pixel based on said level distribution pattern; resolution selection means for selecting a resolution of an image formed from said second image signal, wherein the resolution selected by a particular user corresponds to the particular user's identification information; and pixel data generation means for generating pixel data of said subject pixel corresponding to said class detected by said class detection means and said resolution selected by said resolution selection means.