pnmalias
Apply antialiasing onto a PNM image. tldr-pages
On several platforms
Several platforms
Perform antialiasing on a PNM image, taking black pixels as background and white pixels as foreground
pnmalias path/to/input.pnm >path/to/output.ppmIdentifyExplicitly specify the background and foreground color
pnmalias -bcolor background_color -fcolor foreground_color path/to/input.pnm >path/to/output.ppmIdentifyApply altialiasing to foreground pixels only
pnmalias -fonly path/to/input.pnm >path/to/output.ppmIdentifyApply antialiasing to all surrounding pixels of background pixels
pnmalias -balias path/to/input.pnm >path/to/output.ppmIdentify