pgmenhance
Edge-enhance a PGM grayscale image
TLDR
Enhance image sharpness with default intensity (9)
$ pgmenhance [input.pgm] > [output.pgm]
Enhance with custom intensity (1 = lowest, 9 = highest)$ pgmenhance -[3] [input.pgm] > [output.pgm]
Read from stdin$ cat [input.pgm] | pgmenhance -[5] > [output.pgm]
SYNOPSIS
pgmenhance [-N] [pgmfile]
DESCRIPTION
pgmenhance reads a PGM image as input, enhances the edges, and writes a PGM image as output. The enhancement technique is derived from Philip R. Thompson's xim program. Part of the Netpbm toolkit.
PARAMETERS
- N
Enhancement intensity from 1 (lowest) to 9 (highest). Default is 9.
