librpigrafx

librpigrafx is a graphic library for Raspberry Pi.

What does it do?

• Get image from camera in any size.
  • Resizing is done in GPU.
• Draw boxes and images on console.

Installation

You need to install librpicam and librpiraw to use rawcam (described below).

$ autoreconf -i -m
$ PKG_CONFIG_PATH=/opt/vc/lib/pkgconfig ./configure
$ make
$ make check
$ sudo make install

How to run

$ sudo ./test/test_capture_render_seq

sudo is needed here because it uses qmkl, which uses /dev/mem to communicate with GPU, for testing of resource confliction.

Using rawcam

The official IMX219 camera module is protected by a cryptographic chip ATSHA204A not to let users to use their ISP (image signal processor) and algorithms fully for processing raw image from camera.

This library supports rawcam, which is a framework provided by the Raspberry Pi firmware. rawcam enables to receive raw image from MIPI/CSI-2 image sensor directly. With it, you can use non-official cameras i.e. without cryptographic chips. In addition, this library implements raw image processing, AWB, etc. so you can use it without much configurations.

Currently, our rawcam support is limited to IMX219. How to run:

$ ./prepare_rawcam.sh
$ sudo reboot
$ ./test/test_rawcam_imx219