FreeBSD Manual Pages
BLIND-SET-LUMA(1) General Commands Manual BLIND-SET-LUMA(1) NAME blind-set-luma - Multiply the luminosity of a video SYNOPSIS blind-set-luma luma-stream DESCRIPTION blind-set-luma reads a video from stdin and a mask video from luma-stream. The video is printed to stdout, with the luminosity of each pixel multi- plied by the product of the luminosity and the alpha value of the corre- sponding pixel and frame in the mask video. If stdin is longer than luma-stream, the remainder of stdin is printed without any changes. If stdin is shorter than luma-stream, the remainder of luma-stream is ignored but may be partially read. NOTES In most cases, this is not what you want to use, instead you probably want to use blind-arithm(1) to multiple the X, Y and Z values on one value. This produces the same affect as reducing the intensity of the light sources, which is not what blind-set-luma does. SEE ALSO blind(7), blind-single-colour(1), blind-arithm(1), blind-set-alpha(1), blind-invert-luma(1), blind-set-saturation(1) AUTHORS Mattias AndrA(C)e <maandree@kth.se> blind 1.1 BLIND-SET-LUMA(1)
NAME | SYNOPSIS | DESCRIPTION | NOTES | SEE ALSO | AUTHORS
Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=blind-set-luma&sektion=1&manpath=FreeBSD+Ports+15.1.quarterly>