Patent ID: 6256112
Filing Date: 2001-07-03
Classification: H04N

Abstract:
A color type determining device which receives read data made up of a plurality of color components read from an original, and determines, based on the read data, whether the original is a color original including colored information, or a black-and-white original made up solely of non-colored information, comprising:color density detecting means, which, from the read data, quantify and detect color density of each pixel;density distribution determining means, which, from the color density found by said color density detecting means, find a color density distribution for each line, and determine from the color density distribution for each line whether the line is a color line including colored information;color line counting means, which count a total number of lines determined to be color lines by said density distribution determining means; andoriginal color type determining means, which determine that the original is a color original including colored information when the total number of color lines counted by said color line counting means exceeds a certain previously set threshold value.