IJ Plugins: Color

RGB to CIE L*a*b* stack - Converts image pixels from RGB color space to CIE L*a*b* color space. Uses fixed formulas described at http://www.brucelindbloom.com. The output is a stack of floating point images (GRAY32). L* band in in the range 0 to 100, a* from -100 to 100, and b* from -100 to 100.

CIE L*a*b* stack to RGB - Converts image pixels from CIE L*a*b* color space to RGB color space. Uses fixed formulas described at http://www.brucelindbloom.com. It assumes that the input is a stack of three floating point images (GRAY32), corressponding to L*, a*, and b*, respectively.

RGB to YCbCr stack and YCbCr stack to RGB - Conversion between RGB abd YCbCr color spaces http://en.wikipedia.org/wiki/YCbCr.

Multiband Sobel edges - Sobel edge detector that supports multiband and color images, also work on gray level images. A multiband image is understand as a stack of images in which each slice corresponds to different band. That is, each pixel is understand to have a vector of values (number of elements in the vector is equal to rack size or to 3 in case of RGB images). The operation is simillar to a typical Soble operator, however, the distances between pixel intensities in the origianal Sobel operator are interpreted as distances between pixel value vectors.

Intensity shift - Shifts (wraps around) GRAY8 image intensity. It is usefull, for instance, for 'shifting' the intensity in H band of an HSB stack.

k-means clustering plugin

3D Color Inspector plugin

Threshold_Colour plugin