Patent ID: 7463785
Filing Date: 2008-12-09
Classification: G06T

Abstract:
1. An image processing system which comprises an object pixel detecting processor which determines whether relevant pixels in the character image information obtained by reading an original on which characters have been recorded are object pixels to be subjected to enhancement processing, and carries out enhancement processing on pixels determined to be object pixels, thereby carrying out edge enhancement processing on the character image information, the object pixel detecting processor comprising: a density judgment section that determines the relevant pixel to be a prospective object pixel when the density of the relevant pixel is higher than a first threshold value, which is higher than the density of a background of the border of the original and not higher than the density of a thinnest line from among lines that form said characters, and when the density of the relevant pixel is not higher than a second threshold value, which is not lower than the density of the thinnest line from among lines that form said characters; and a thin line image detecting section which determines the relevant pixel to be a thin line pixel forming a part of a thin line image, wherein the object pixel detecting processor determines that the relevant pixel is an object pixel when the density judgment section determines the relevant pixel to be a prospective object pixel, and the thin line image detecting section determines the relevant pixel to be a thin line pixel.