Patents Examined by Kim Ven Yu
  • Shading correcting method and shading correcting apparatus
    Patent number: 5572337
    Abstract: Data ID obtained by making analog-to-digital conversion of an output of an image sensor or the like is subjected to shading correction, to obtain correction data SOUT. The correction data SOUT is found by the following equation using white reference data WST and black reference data BST: ##EQU1## where K is a coefficient.
    Type: Grant
    Filed: December 14, 1992
    Date of Patent: November 5, 1996
    Assignee: Mita Industrial, Co., Ltd.
    Inventors: Tetsuji Kajitani, Ariyoshi Hikosaka, Hideo Azumai, Satoshi Iwatsubo