Title:
METHOD FOR CORRECTION OF COLOR OF COLOR RECORDER AND APPARATUS FOR CORRECTION OF COLOR IN COLOR RECORDER
Document Type and Number:
Japanese Patent JPH06133333
Kind Code:
A
Abstract:
PURPOSE: To make accurate high-resolution color reproduction possible by providing a shadow test pattern for color and correcting a signal indicating the color of a color recorder by comparing a signal indicating the reference shadow of the pattern with a signal indicating a recorded actual shadow. CONSTITUTION: A test pattern video is generated on a CRT 22 by generating one set of test pattern signals indicating the plurality of shadows of a color and a recording medium 12 is exposed to the video. When the test pattern is developed on the medium 12, a photodetector 52 detects signals respectively indicating an unexposed background and the luminance of each shadow of each color and supplies the signals to a microcomputer 70. Then one set of measured reflectance values is obtained by adjusting the detected color value of each color against a dark current and a background value. Thereafter, the microcomputer 70 can find a generated corrected signal by obtaining one set of values of a relevant density from the test pattern by converting each reflectance value into a density value.
Inventors:
JIYON SHII UITSUTENBAAGAA
KERII ERU SHIEIKURII
KERII ERU SHIEIKURII
Application Number:
JP12459191A
Publication Date:
May 13, 1994
Filing Date:
April 30, 1991
Export Citation:
Assignee:
ALLIANT TECHSYSTEMS INC
International Classes:
B41J2/525; H04N1/407; H04N1/60; H04N9/79; (IPC1-7): H04N9/79; B41J2/525
Attorney, Agent or Firm:
Masaki Yamakawa