Common Commands

Merge each row in an image with its two neighbours.See also: pamdeinterlace.

A simple command-line mixer for PulseAudio.

Apply a simple arithmetic function to a Netpbm image.

Flip or rotate a PAM or PNM image.

This command has been superseded by pamfix -truncate.

Fix errors in PAM, PBM, PGM and PPM files.See also: pamfile, pamvalidate.

Describe Netpbm (PAM or PNM) files.

Execute a shell command on each image in a Netpbm file.See also: pamfile, pampick, pamsplit.

Enlarge a PAM image by duplicating pixels.See also: pbmreduce, pamditherbw, pbmpscale.

Perform edge-detection on a Netpbm image.

Apply dithering to a greyscale image, i.e. turn it into a pattern of black and white pixels that look the same as the original greyscale.See also: pbmreduce.

Slice a Netpbm image vertically or horizontally.See also: pamundice.

Reduce the depth (i.e. color resolution) in an image.

Remove every other row in a Netpbm image.See also: pammixinterlace.

Cut out a rectangular region from a Netpbm image.See also: pamcrop, pamdice, pamcomp.

Create a PAM image of cratered terrain.See also: pamshadedrelief, ppmrelief.

Overlay two PAM images.

Change a PAM image's saturation and value.

Create a mask of the background in a PAM image.See also: pbmmask.

Apply a binary function on two Netpbm images.See also: pamfunc.