Title :
Photometric calibration for image enhancement of electrophoretic displays
Author :
Kao, Wen-Chung ; Liu, Jen-Jui ; Chu, Ming-I ; Wang, Yi-Kai ; Yang, Tsung- Hua
Author_Institution :
Dept. of Appl. Electron. Technol., Nat. Taiwan Normal Univ., Taipei, Taiwan
Abstract :
The electrophoretic display (EPD) has become the main solution to electronic paper, but it is temperature sensitive with only a few number of gray levels. In this paper, we present an integrated image tool to automatically estimate the reflectance function curves under different temperatures, perform adaptive image halftoning to improve visual quality, and calibrate the image to compensate the nonlinear response of EPD. The proposed approach has been verified on a practical EPD panel and promising results are achieved.
Keywords :
calibration; electronic paper; electrophoretic displays; image enhancement; EPD panel; adaptive image halftoning; electronic paper; electrophoretic displays; image enhancement; integrated image tool; photometric calibration; reflectance function curve; temperature sensitive; Calibration; Displays; Image enhancement; Nonlinear optics; Optical bistability; Optical signal processing; Optical variables control; Photometry; Reflectivity; Temperature; Electrophoretic display (EPD); image calibration; image halftoning; temperature compensation;
Conference_Titel :
Consumer Electronics (ISCE), 2010 IEEE 14th International Symposium on
Conference_Location :
Braunschweig
Print_ISBN :
978-1-4244-6671-9
DOI :
10.1109/ISCE.2010.5523253
