bmptopnm
Convert BMP images to PNM format
TLDR
Convert a BMP image to PNM format
$ bmptopnm [image.bmp] > [output.pnm]
Convert from stdin to stdout$ cat [image.bmp] | bmptopnm > [output.pnm]
Convert BMP to PNG via pipe$ bmptopnm [image.bmp] | pnmtopng > [output.png]
SYNOPSIS
bmptopnm [-verbose] [bmpfile]
DESCRIPTION
bmptopnm reads a Microsoft Windows or OS/2 BMP file as input and produces a PNM (Portable aNyMap) image as output. The output format (PBM, PGM, or PPM) depends on the input: grayscale images produce PGM, color images produce PPM, and monochrome images produce PBM.This is part of the Netpbm package of image manipulation utilities. Input can be from a file or standard input; output is to standard output.
PARAMETERS
-verbose
Print additional information about the input file.
INSTALL
sudo apt install netpbm
sudo dnf install netpbm
sudo pacman -S netpbm
sudo apk add netpbm
sudo zypper install netpbm
brew install netpbm
nix profile install nixpkgs#netpbm
CAVEATS
Some BMP variants may not be fully supported. For compressed BMP files, decompression is handled automatically for RLE-encoded images. Very old or non-standard BMP formats may cause errors.