Special Section on Retinex at 40

Simple spatial processing for color mappings

[+] Author Affiliations
Reiner Eschbach, Raja Bala

Xerox Imaging Solutions Technology Center, 800 Phillips Road, MS 128-27E, Webster, New York?14580

Ricardo de Queiroz

Universidade de Brasi´lia, Departamento de Engenharia Ele´trica, CP 04591, Brasi´lia, DF, 70910-900, Brazil

J. Electron. Imaging. 13(1), 120-125 (Jan 01, 2004). doi:10.1117/1.1636184
History: Received Nov. 28, 2002; Revised Jul. 22, 2003; Accepted Aug. 27, 2003; Online March 01, 2004
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In image processing, color is generally treated as an autonomous entity that is separate from spatial dimensions. Consequently, color processing and color mapping are predominantly done as point operations, linking one color to another, without considering spatially neighboring colors. It is well known that this point-wise approach does not capture the spatial dependencies of color that we humans experience in everyday life. More precise mathematical models of color vision that take into account spatial dependencies are generally computationally expensive. This leads to a continuing predominance of point-wise color processing. We introduce some simple spatially dependent processing techniques and demonstrate the potential advantages of even such simple schemes. The underlying assumption is that simple spatial operations allow the “hiding” of artifacts and errors in a way that is less objectionable to a human observer. © 2004 SPIE and IS&T.

© 2004 SPIE and IS&T

Citation

Reiner Eschbach ; Raja Bala and Ricardo de Queiroz
"Simple spatial processing for color mappings", J. Electron. Imaging. 13(1), 120-125 (Jan 01, 2004). ; http://dx.doi.org/10.1117/1.1636184


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