ppmwheel
Generate HSV color wheel image
TLDR
Generate color wheel
$ ppmwheel [diameter] > [output.ppm]
Create 200px color wheel$ ppmwheel 200 > [wheel.ppm]
SYNOPSIS
ppmwheel diameter
DESCRIPTION
ppmwheel generates a PPM image of an HSV color wheel with the specified diameter in pixels. The output is a square image with the color wheel centered. Hue varies around the circumference, saturation varies from center to edge, and value is constant at maximum.Part of the Netpbm suite of image manipulation tools.
PARAMETERS
DIAMETER
Wheel diameter in pixels.
INSTALL
sudo apt install netpbm
sudo dnf install netpbm
sudo pacman -S netpbm
sudo apk add netpbm
sudo zypper install netpbm
brew install netpbm
nix profile install nixpkgs#netpbm
CAVEATS
Output is always a square PPM image. Pipe through other Netpbm tools or ImageMagick to convert to other formats.
HISTORY
ppmwheel was created as part of Netpbm for color wheel generation.
SEE ALSO
ppm(5), ppmrainbow(1)
