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Online-Imageprocessing

Institute for Neurophysics How to use

Principal Component Analysis

Using Principal Component Analysis, the red, green and blue color channels of an image can be transformed into three different, de-correlated channels.

Usually, most of the image variation is contained in one channel which is similar to a grayscale image; the remaining two other channels mimic (for almost all color images) the red-green and blue-yellow color channels found in the human visual system.


URL for input picture:

Type of output:

original channels, with amplitude information

channels retransformed into RGB-space




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