A NEW METHOD OF MEASURING OPTICAL DENSITY WITH CCD TECHNOLOGY

doi:10.7517/j.issn.1674-0475.2004.02.145

Imaging Science and Photochemistry ›› 2004, Vol. 22 ›› Issue (2): 145-153.DOI: 10.7517/j.issn.1674-0475.2004.02.145

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A NEW METHOD OF MEASURING OPTICAL DENSITY WITH CCD TECHNOLOGY

XING Gang¹, ZHU Rui-lin², NI Hong¹, CHEN Rong-gang³

1. Hefei Apollo Digital Science and Technology Ltd., Hefei 230031, P.R. China;
2. Beijing Remote Sensing Information Institute, Beijing 100011, P.R. China;
3. Precision Machinery and Instrument Department of USTC, Hefei 230026, P.R. China

Received:2003-08-29 Revised:2003-12-02 Online:2004-03-23 Published:2004-03-23

Abstract

Abstract: A new method of measuring optical density with CCD technology is introduced.The basic principle is that for exposure changing the transmissivity τ is equal to changing the exposure time t.If the method is used, the calibration of the standard gray scale is not need and the object transmission density on large area can be measured accurately.

Key words: CCD, exposure time, transmissivity, transmission density, diffuse and transimission density, dual diffuse density

CLC Number:

TQ57

XING Gang, ZHU Rui-lin, NI Hong, CHEN Rong-gang. A NEW METHOD OF MEASURING OPTICAL DENSITY WITH CCD TECHNOLOGY[J]. Imaging Science and Photochemistry, 2004, 22(2): 145-153.

[1]	WANG Yu, LI Ping, WU Hou-ping, LIU Zi-long, FENG Guo-jin, ZHENG Chun-di, ZHANG Qiao-xiang. Exposure Time Calibration of Digital Still Camera [J]. Imaging Science and Photochemistry, 2007, 25(4): 306-310.
[2]	Tadaaki Tani . ANALYSIS OF EFFICIENCY OF IMAGE FORMATION AND PREDICTION OF FUTURE OF COLOR FILM AND DIGITAL STILL CAMERA [J]. Imaging Science and Photochemistry, 2001, 19(1): 48-71.
[3]	Xu Jingkun, Chen Ping, Zhang Li, Zheng Deshui, Qiu Yong, Song Xinqi. THE MONITORING FOR PHYSICAL DEVELOPING PROCESS WITH A LINEAR CCD [J]. Imaging Science and Photochemistry, 1996, 14(2): 101-107.

A NEW METHOD OF MEASURING OPTICAL DENSITY WITH CCD TECHNOLOGY

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