CmdID / Commands
pamdeinterlace
Remove every other row in a Netpbm image. tldr-pages
On several platforms
Produce an image consisting of the input's even-numbered rows
pamdeinterlace path/to/image.ppm >path/to/output.ppmIdentify
Produce an image consisting of the input's odd-numbered rows
pamdeinterlace -takeodd path/to/image.ppm >path/to/output.ppmIdentify