Patent ID: 6094502
Filing Date: 2000-07-25
Classification: H04N

Abstract:
An image formation apparatus comprising:a density detection means for detecting a density of each pixel of an original,data generation means for generating image density data of each pixel of said original according to a detected result of said density detection means,.gamma. correction means for correcting image density data generated by said data generation means so as to obtain desired gradation characteristic according to .gamma. correction data,image forming means for generating a copy of said original on a recording medium according to said image density data corrected by said .gamma. correction means,mode setting means for setting a correction mode to correct said .gamma. correction data, andcorrection mode execution means for detecting by said density detection means density of a plurality of pixels of a copy of a test pattern original generated by said image forming means to correct said .gamma. correction data according to a detected result in response to said correction mode being set by said mode setting means.