Pseudocolor as a Means of Image Enhancement.

Joseph J. Sheppard, R. H. Stratton, Carl Gazley

Expert InsightsPublished 1969

A description of two methods for enhancing perception of detail in black-and-white images. Image enhancement by pseudocolor involves the problem of specification of chromaticities and luminances. Two techniques of producing color by three-primary mixtures are discussed: a computer-based approach (with considerable versatility), and a relatively simple process of photographic transformation. The first technique is limited only by the sophistication of the image-processing program and the data handling capacity of the computer. It is a costly approach requiring appropriate scanning of the original black-and-white image for input. Attractions of the photographic technique include the low cost factor, flexibility in type of color renditions possible, and the availability of processing equipment to medical personnel for clinical tasks. Pseudocolor techniques are being used to design psychophysical experiments in pattern recognition and may be applied to chromosome photomicrographs, X-ray films, and pathological specimens. 33 pp. Ref.

Document Details

  • Copyright: RAND Corporation
  • Availability: Web Only
  • Year: 1969
  • Pages: 33
  • Document Number: P-3988

Citation

Chicago Manual of Style

Sheppard, Joseph J., R. H. Stratton, and Carl Gazley, Pseudocolor as a Means of Image Enhancement. Santa Monica, CA: RAND Corporation, 1969. https://www.rand.org/pubs/papers/P3988.html.
BibTeX RIS

This publication is part of the RAND paper series. The paper series was a product of RAND 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.

RAND 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.