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crimp_ppm(n) 0.2 doc "C Raster Image Manipulation Package"


crimp_ppm - CRIMP - PPM handling, NetPBM

Table Of Contents



This package provides commands for the conversion of CRIMP images to Portable Pixmaps (PPM) and vice versa.

For a basic introduction of the whole CRIMP eco-system please read the CRIMP - Introduction to CRIMP (sic!). The basic concepts used here, like images, image types, etc. are described in the reference manpage for the CRIMP - Foundation. We will not repeat them here, but assume that the reader knows them already.

In the overall architecture this package resides in the middle layer of the system's architecture, between core and applications, as shown at


The commands it provides all fall into the I/O category of the general design.


::crimp read ppm string

This method extends the ::crimp read ensemble. It takes the (possibly binary) string holding an image in the PPM format and returns an image of type rgb containing it.

::crimp write 2string format image
::crimp write 2chan format chan image
::crimp write 2file format path image

The package extends the above ensemble with support for the following formats


The plain ASCII format of portable pix maps, as per http://en.wikipedia.org/wiki/Netpbm_format.


The raw binary format of portable pix maps, as per http://en.wikipedia.org/wiki/Netpbm_format.

The supported image types are grey8, rgb, rgba, and hsv.


  1. http://en.wikipedia.org/wiki/Netpbm_format


Export PPM image, Export image, PPM, Import PPM image, Import image, PPM, PPM, PPM image export, PPM image import, computer vision, document processing, image, matrix, photo, vector