pamstretch
Scale up a PAM image by interpolating between pixels. See also:
pamstretch-gen,pamenlarge,pamscale. More information: https://netpbm.sourceforge.net/doc/pamstretch.html.
- Scale up a PAM image by an integer factor:
pamstretch {{N}} {{path/to/image.pam}} > {{path/to/output.pam}}
- Scale up a PAM image by the specified factors in the horizontal and vertical directions:
pamstretch -xscale {{XN}} -yscale {{YN}} {{path/to/image.pam}} > {{path/to/output.pam}}
