Bilateral Filtering for Gray and Color Images

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Bilateral Filtering for Gray and Color Images (1998)

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by C. Tomasi

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1127 - 2 self

BibTeX

@INPROCEEDINGS{Tomasi98bilateralfiltering,
    author = {C. Tomasi},
    title = {Bilateral Filtering for Gray and Color Images},
    booktitle = {},
    year = {1998},
    pages = {839--846}
}

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Abstract

tomasi @ cs.stanford.edu Bilateral filtering smooths images while preserving edges, by means of a nonlinear combination of nearby image values. The method is noniterative, local, and sim-ple. It combines gray levels or colors based on both their geometric closeness and their photometric similariv, and prefers near values to distant values in both domain and range. In contrast with filters that operate on the three bands of a color image separately, a bilateral filter can en-force the perceptual metric underlying the CIE-Lab color space, and smooth colors and preserve edges in a way that is tuned to human perception. Also, in contrast with standardjltering, bilateral filtering produces no phantom colors along edges in color images, and reduces phantom colors where they appear in the original image. 1

Keyphrases

color image bilateral filtering human perception cie-lab color space preserve edge tomasi c reduces phantom color nonlinear combination photometric similariv edu bilateral geometric closeness smooth color phantom color original image smooth image bilateral filter nearby image value gray level

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