42 lines
1.7 KiB
Plaintext
42 lines
1.7 KiB
Plaintext
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# **************************************************
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# NOTE : This README is obsolete. We strongly
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# recommend using the cmake tool (see README.cmake)
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# to build openJPEG.
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# **************************************************
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Release Notes
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--------------
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This version of the library has been tested under the following OS:
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- RedHat Linux 9.0
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You should be able to link progams with the -lopenjpeg option after the library is compiled and installed.
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You can also statically link with libopenjpeg.a.
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If you use a really old version of gcc and it chokes on the CRs in the file, you can type 'make dos2unix'
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to run all of the files through dos2unix which converts CRLF to LF. This no longer appears to be required
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for RedHat 7.3 or 9.
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Please let us know how this works for you under other Linux distributions or any other *nix.
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Installation
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------------
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Note: You will need to have root privileges in order to install the library in
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/usr/include and /usr/lib directories.
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The installation process is as simple as this :
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1) Enter the OpenJPEG directory
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2) Build the distribution :
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make
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make install
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3) Clean all files produced during the build process
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make clean
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Simple codec compilation
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------------------------
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Once you've built the library, you might want to test it with a basic codec. To do this, go to the codec directory and use one of the following commands to build an encoder and decoder respectively:
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gcc convert.c image_to_j2k.c -o image_to_j2k -lopenjpeg -I ../libopenjpeg/ -lm -ltiff
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gcc convert.c j2k_to_image.c -o j2k_to_image -lopenjpeg -I ../libopenjpeg/ -lm -ltiff
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You should add '-L..' to those lines if you did not use the 'install' target (and the 'clean' target neither...).
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