Pseudocolor Image Enhancement by a Two-Separation Photographic Process.
Purchase Print Copy
|Add to Cart||Paperback6 pages||$20.00||$16.00 20% Web Discount|
A black-and-white photograph contains, in its varying intensities of gray, much more information than can be extracted by the human eye, which can distinguish only 15 to 20 gray shades. Transforming the gray scale into a chromatic scale in which each intensity level is presented as a different color makes it possible to transmit more of the image information--a possibility being investigated for use in medicine, criminology, and aerial reconnaissance. This paper describes a method that requires only two separation steps (red and blue) and can be handled by a modestly equipped photo laboratory. This pseudocolor process produces a continuous line through color space from adjacent densities in the original. If desired, it can be transformed in various ways by changes in photographic materials, filters, and exposures. (Presented at the 15th Annual Symposium of the Society of Photo-Optical Instrumentation Engineers, Anaheim, September 1970.) 6 pp. Ref.
This report is part of the RAND Corporation Paper series. The paper was a product of the RAND Corporation from 1948 to 2003 that captured speeches, memorials, and derivative research, usually prepared on authors' own time and meant to be the scholarly or scientific contribution of individual authors to their professional fields. Papers were less formal than reports and did not require rigorous peer review.
This document and trademark(s) contained herein are protected by law. This representation of RAND intellectual property is provided for noncommercial use only. Unauthorized posting of this publication online is prohibited; linking directly to this product page is encouraged. Permission is required from RAND to reproduce, or reuse in another form, any of its research documents for commercial purposes. For information on reprint and reuse permissions, please visit www.rand.org/pubs/permissions.
The RAND Corporation is a nonprofit institution that helps improve policy and decisionmaking through research and analysis. RAND's publications do not necessarily reflect the opinions of its research clients and sponsors.