Image Dynamic Range Compression For Law Enforcement

H. J. Caulfield; P. Mueller; J. Rozelle

doi:10.1117/12.933651

23 June 1983 Image Dynamic Range Compression For Law Enforcement

H. J. Caulfield, P. Mueller, J. Rozelle

Proceedings Volume 0339, Optics and Images in Law Enforcement II; (1983) https://doi.org/10.1117/12.933651
Event: 1982 Technical Symposium East, 1982, Arlington, United States

Abstract

Optical nondestructive readout of photographic film allows the forensic photographer to see image detail despite overexposure, underexposure, or both. The methods involve direct schlieren viewing of the surface relief image of the original negative. A "super camera" largely insensitive to range and brightness variations in the scene is described.

Citation Download Citation

H. J. Caulfield, P. Mueller, and J. Rozelle "Image Dynamic Range Compression For Law Enforcement", Proc. SPIE 0339, Optics and Images in Law Enforcement II, (23 June 1983); https://doi.org/10.1117/12.933651

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