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Proceedings Paper

New generation of image editing algorithms
Author(s): Sergey Bezryadin
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Paper Abstract

Any color image editing software has Brightness, Contrast, and Saturation controls. However, because it usually imitates corresponding adjusting knobs of a Color TV, and thus, corresponds to mid 20th century scope of engineering, adjusting one of the parameters affects all three parameters, and modification of Brightness or Contrast does not preserve chromatic coordinates. A person should be very experienced with the sequential control operations in order to get a result equivalent to a simple expocorrection. A set of new generation algorithms described in this paper is free from the above-mentioned defects and includes: Brightness and Contrast editing which does not affect chromatic coordinates; Local Contrast editing that causes only minor modification of Global Dynamic Range; Global Dynamic Range modification which affects neither chromatic coordinates, nor Local Dynamic Range; and Saturation modification which affects neither Brightness, nor Hue. The efficiency of color image editing software depends on the choice of a basic CCS (Color Coordinate System). A CCS that is effective for one editing procedure might be less effective for another. This paper presents a set of correlated CCSs with a specification of their preferable area of application.

Paper Details

Date Published: 20 February 2007
PDF: 10 pages
Proc. SPIE 6502, Digital Photography III, 65020P (20 February 2007); doi: 10.1117/12.704293
Show Author Affiliations
Sergey Bezryadin, KWE International, Inc. (United States)


Published in SPIE Proceedings Vol. 6502:
Digital Photography III
Russel A. Martin; Jeffrey M. DiCarlo; Nitin Sampat, Editor(s)

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