nuttx/Documentation/applications/graphics/libjpeg/index.rst

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``libjpeg`` JPEG image encoding library
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``libjpeg`` is an open-source library that provides functionality for encoding and decoding images in the JPEG format.  
It implements the baseline JPEG standard and is commonly used in image-related applications and utilities.

Including the library
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To use ``libjpeg`` in a C program, include the main header:

.. code-block:: c

   #include <jpeglib.h>

Configuration
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Support for ``libjpeg`` must be enabled in Kconfig:

  CONFIG_LIBJPEG=y

Example
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NuttX provides an example application that demonstrates how to encode, decode, and resize JPEG images using ``libjpeg``.  
It can be found under:

``apps/graphics/jpgresizetool``