Difference of Gaussians

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High Quality Content by WIKIPEDIA articles! In computer vision, Difference of Gaussians is a grayscale image enhancement algorithm that involves the subtraction of one blurred version of an original grayscale image from another, less blurred version of the original. The blurred images are obtained by convolving the original grayscale image with Gaussian kernels having differing standard deviations. Blurring an image using a Gaussian kernel suppresses only high-frequency spatial information. Subtracting one image from the other preserves spatial information that lies between the range of frequencies that are preserved in the two blurred images. Thus, the difference of Gaussians is similar to a band-pass filter that discards all but a handful of spatial frequencies that are present in the original grayscale image.

Weitere Informationen

  • Allgemeine Informationen
    • GTIN 09786131387982
    • Editor Lambert M. Surhone, Mariam T. Tennoe, Susan F. Henssonow
    • EAN 9786131387982
    • Titel Difference of Gaussians
    • Herausgeber Betascript Publishing
    • Anzahl Seiten 108
    • Genre Informatik

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