Invention Grant
- Patent Title: Apparatus and methods for two point tone reproduction curve calibration
- Patent Title (中): 两点色调再现曲线校准的装置和方法
-
Application No.: US11954385Application Date: 2007-12-12
-
Publication No.: US08009332B2Publication Date: 2011-08-30
- Inventor: Zhen He , Kuangti Ted Cheng
- Applicant: Zhen He , Kuangti Ted Cheng
- Applicant Address: US CT Norwalk
- Assignee: Xerox Corporation
- Current Assignee: Xerox Corporation
- Current Assignee Address: US CT Norwalk
- Agency: Oliff & Berridge, PLC
- Main IPC: H04N1/10
- IPC: H04N1/10
Abstract:
Systems and methods provide increased accuracy in recalibrating the tone reproduction curve (TRC) for a photoelectric image sensor that senses density values. The sensor outputs sensed density values for tone patches. A recalibrated TRC is calculated from the original TRC, the known densities of the tone patches, and the sensed density values of the tone patches.
Public/Granted literature
- US20090153911A1 Apparatus and Methods for Two Point Tone Reproduction Curve Calibration Public/Granted day:2009-06-18
Information query
