High-resolution movie-film digitization: color scanner calibration

Bruce B. Glasgow; Thomas P. McElwain; Lon N. Pringle

doi:10.1117/12.206537

10 April 1995 High-resolution movie-film digitization: color scanner calibration

Bruce B. Glasgow, Thomas P. McElwain, Lon N. Pringle

Proceedings Volume 2414, Device-Independent Color Imaging II; (1995) https://doi.org/10.1117/12.206537
Event: IS&T/SPIE's Symposium on Electronic Imaging: Science and Technology, 1995, San Jose, CA, United States

Abstract

This paper introduced a novel system concept for high color/spatial resolution movie film electronic capture. The camera system scans each frame of movie film to the full spatial/spectral resolution of the film. The image detector output is digitized to a unique color space that involves the dye density of each of the film's three color layers (discussed in a different paper at this conference). This paper briefly discusses the system concept. A side topic of this paper is to present the camera color calibration methodology that ensures accurate color capture and storage. From the spectrophotometer output of the scanned image, the XYZ values of each color sample can be calculated. The traditional method applies a global transformation matrix to translate the scanned RGB values into the XYZ space. In its simplest form the transformation matrix is a 3 X 3 matrix translating RGB into XYZ. Other approaches have considered various linear combinations of RGB (e.g. R^*G, R²) with some success. Our approach is to consider local regions of RGB color space and determine the transformation matrix based only on those local RGB and measured XYZ values.

Citation Download Citation

Bruce B. Glasgow, Thomas P. McElwain, and Lon N. Pringle "High-resolution movie-film digitization: color scanner calibration", Proc. SPIE 2414, Device-Independent Color Imaging II, (10 April 1995); https://doi.org/10.1117/12.206537

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available