Query: lum
OS: plan9
Section: 9
Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar
LUM(9.1) LUM(9.1)NAMElum - compute luminanceSYNOPSISfb/lum [ input ]DESCRIPTIONLum computes the luminance of the input picture using the NTSC formula L=.299R+.587G+.114B. Pixel values are mapped through the input image's color map, if any. The resulting image is written to standard output.SOURCE/sys/src/fb/lum.cSEE ALSOpicfile(9.6) LUM(9.1)
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