PPMB_IO
binary Portable Pixel Map (PPM) Files
Read and Write Utilities

PPMB_IO is a C++ library which reads and writes files in the binary Portable Pixel Map (PPM) 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:

PPMB_IO is available in a C version and a C++ version.

Related Data and Programs:

BMP_TO_PPMB, a C++ program which converts BMP files to binary Portable Pixel Map (PPM) files.

PBMB_IO, a C++ library which can read or write binary Portable Bit Map (PBM) files.

PGMB_IO, a C++ library which can read or write binary Portable Gray Map (PGM) files.

PPMA_IO, a C++ library which can read or write ASCII Portable Pixel Map (PPM) files.

PPMA_TO_PPMB, a C++ program which converts ASCII Portable Pixel Map (PPM) files to binary PPM files.

PPMB_TO_BMP, a C++ program which converts binary Portable Pixel Map (PPM) files to BMP files.

PPMB_TO_PPMA, a C++ program which converts binary Portable Pixel Map (PPM) files to ASCII PPM files.

Reference:

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

Source Code:

• ppmb_io.cpp, the source code;
• ppmb_io.hpp, the include file;
• ppmb_io.sh, commands to compile the source code;

Examples and Tests:

• ppmb_io_prb.cpp, the sample calling program.
• ppmb_io_prb.sh, commands to compile, link and run the sample calling program.
• ppmb_io_prb_output.txt, the output file.
• ppmb_io_prb.ppm, a binary PPM file created by the program.

List of Routines:

• I4_MAX returns the maximum of two integers.
• PPMB_CHECK_DATA checks the data for a binary portable pixel map file.
• PPMB_EXAMPLE sets up some RGB data.
• PPMB_READ reads the header and data from a binary portable pixel map file.
• PPMB_READ_DATA reads the data in a binary portable pixel map file.
• PPMB_READ_HEADER reads the header of a binary portable pixel map file.
• PPMB_READ_TEST tests the binary portable pixel map read routines.
• PPMB_WRITE writes the header and data for a binary portable pixel map file.
• PPMB_WRITE_DATA writes the data for a binary portable pixel map file.
• PPMB_WRITE_HEADER writes the header of a binary portable pixel map file.
• PPMB_WRITE_TEST tests the binary portable pixel map write routines.

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