PPMA_IO
Portable Pixel Map (ASCII) Files
Read and Write Utilities

PPMA_IO is a C library which reads and writes files in the ASCII PPM (Portable Pixel Map) format for 2D color graphics information.

There are many graphics programs, such as XV and GIMP, that can display images in this format, or translate them to other formats such as BMP, GIF, JPEG, MacPaint, X Window, and so on.

Licensing:

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

Languages:

PPMA_IO is available in a C version and a C++ version and a FORTRAN90 version and a MATLAB version and a Python version.

Related Data and Programs:

MANDELBROT, a C program which generates an ASCII Portable Pixel Map (PPM) image of the Mandelbrot fractal set;

PBMA_IO, a C library which handles the ASCII Portable Bit Map (PBM) format.

PGMA_IO, a C library which handles the ASCII Portable Gray Map (PGM) format.

1. the PPMA Data page.
2. the NETPBM homepage.

Source Code:

• ppma_io.c, the source code;
• ppma_io.h, the include file;

Examples and Tests:

• ppma_io_test.c, the sample calling program.
• ppma_io_test.txt, the output file.
• test01.ascii.ppm, the ASCII PPM file from test 1.
• test01.png, a PNG version of the file.
• test02.ascii.ppm, the ASCII PPM file from test 2.
• test02.png, a PNG version of the file.

List of Routines:

• PPMA_CHECK_DATA checks the data for an ASCII portable pixel map file.
• PPMA_EXAMPLE sets up some PPM data.
• PPMA_READ reads the header and data from an ASCII portable pixel map file.
• PPMA_READ_DATA reads the data in an ASCII portable pixel map file.
• PPMA_READ_HEADER reads the header of an ASCII portable pixel map file.
• PPMA_READ_TEST tests the ASCII portable pixel map read routines.
• PPMA_WRITE writes the header and data for an ASCII portable pixel map file.
• PPMA_WRITE_DATA writes the data for an ASCII portable pixel map file.
• PPMA_WRITE_HEADER writes the header of an ASCII portable pixel map file.
• PPMA_WRITE_TEST tests the ASCII portable pixel map write routines.
• TIMESTAMP prints the YMDHMS date as a timestamp.

You can go up one level to the C source codes.