Accession Number:

AD0729754

Title:

A Photographic Technique for Image Enhancement: Pseudocolor Two-Separation Process,

Descriptive Note:

Corporate Author:

RAND CORP SANTA MONICA CALIF

Personal Author(s):

Report Date:

1971-07-01

Pagination or Media Count:

44.0

Abstract:

A method for transforming each tone of gray in a black-and-white image into a different color, enabling viewers to extract more information. Using only two intermediate separations, red and blue, the process is even simpler and faster than the redgreenblue process reported in AD-717 143. It also gives a more evenly spaced range of hues. However, with the improveents described in the report, the three-separation technique has the greater flexibility. In the two-separation process One separation is made from the original positive and developed Another is contact-printed from the first--not emulsion-to-emulsion--and developed The first is contact printed, emulsion-to-emulsion, on color film, using a red light source With careful image registration, the second is contact-printed, emulsion-to-emulsion, on the same material under a blue light The print is processed. Examples are included. Author

Subject Categories:

  • Cartography and Aerial Photography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE