Beyond Linux® From Scratch (systemd Edition) - Version 12.2

Chapter 10. Graphics and Font Libraries

libraw-0.21.2

Introduction to libraw

Libraw is a library for reading RAW files obtained from digital cameras (CRW/CR2, NEF, RAF, DNG, and others).

This package is known to build and work properly using an LFS 12.2 platform.

Package Information

libraw Dependencies

Recommended

libjpeg-turbo-3.0.1, JasPer-4.2.4, and Little CMS-2.16

Installation of libraw

Install libraw by running the following commands: 

autoreconf -fiv              &&
./configure --prefix=/usr    \
            --enable-jpeg    \
            --enable-jasper  \
            --enable-lcms    \
            --disable-static \
            --docdir=/usr/share/doc/libraw-0.21.2 &&
make

This package does not come with a test suite.

Now, as the root user: 

make install

Command Explanations

--enable-jpeg: This switch enables support for JPEG images. Remove it if you don't have libjpeg-turbo-3.0.1 installed.

--enable-jasper: This switch enables support for JPEG2000 images. Remove it if you don't have JasPer-4.2.4 installed.

--enable-lcms: This switch enables support for color management. Remove it if you don't have Little CMS-2.16 installed.

--disable-static: This switch prevents installation of static versions of the libraries.

Contents

[Note]

Note

All of the installed programs are examples of using libraw.

Installed Programs: 4channels, dcraw_emu, dcraw_half, half_mt, mem_image, multirender_test, postprocessing_benchmark, raw-identify, simple_dcraw, and unprocessed_raw
Installed Library: libraw.so and libraw_r.so
Installed Directories: /usr/include/libraw and /usr/share/doc/libraw-0.21.2

Short Descriptions

4channels

generates four TIFF files from RAW data, with one file per channel

dcraw_half

emulates running "dcraw -h" (see DCRAW manpage)

mem_image

emulates running "dcraw [-4] [-6] [-e]" (see DCRAW manpage)

postprocessing_benchmark

creates eight different renderings from one source file. The first and fourth one should be identical

simple_dcraw

emulates running "dcraw [-D] [-T] [-v] [-e] [-4]" (see DCRAW manpage)

dcraw_emu

is an almost complete dcraw emulator (see DCRAW manpage)

half_mt

emulates running "dcraw -h [-w] [-a] [-v]" (see DCRAW manpage)

multirender_test

creates eight different renderings from one source file. The first and fourth one should be identical

raw-identify

emulates running "dcraw -i [-v]" (see DCRAW manpage)

unprocessed_raw

generates an unprocessed raw image (with masked pixels and without black subtraction)

libraw.so

contains functions used for parsing, editing, and saving RAW image data.