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توضیحات

CAmera MOtion COMPensation using image stiching techniques to generate stabilized videos

ویژگی	مقدار
سیستم عامل	-
نام فایل	camocomp-0.1
نام	camocomp
نسخه کتابخانه	0.1
نگهدارنده	[]
ایمیل نگهدارنده	[]
نویسنده	Adrien Gaidon
ایمیل نویسنده	easy_to_guess@googleme.com
آدرس صفحه اصلی	http://pypi.python.org/pypi/camocomp/
آدرس اینترنتی	https://pypi.org/project/camocomp/
مجوز	New BSD License

========================== CAmera MOtion COMPensation ========================== What is it ========== **camocomp** is a Python package that can stabilize videos, i.e. generate a video copy in which the camera motion is compensated. This results in a video where the fixed background (e.g. buildings, roads) appears to be static. What can it be used for ======================= Camera motion compensation is useful for a variety of tasks, including - **stabilizing camera shake** - recovering the **camera motion** for video and scene analysis - differentiating between the **foreground motion** (e.g. of actors) and the motion caused by the moving camera (for **motion analysis**) Where to get it =============== The source code is currently hosted on GitHub at: http://github.com/daien/camocomp Binary installers for the latest released version are available at the Python Package Index:: http://pypi.python.org/pypi/camocomp/ And via ``easy_install`` or ``pip``:: easy_install camocomp pip install camocomp Dependencies ============ - `Numpy <http://www.numpy.org>`__: 1.6.1 or higher - `Hugin <http://hugin.sourceforge.net>`__: a recent version (around 2012) - `FFmpeg <http://ffmpeg.org/download.html>`__: a recent version (around 2012) - `OpenCV <http://opencv.willowgarage.com/wiki/>`__: version 2.4.1 or higher (fixes a bug of the ffmpeg wrapper) Note: this package relies on Hugin's python scripting interface (HSI): http://wiki.panotools.org/Hugin_Scripting_Interface Installation from sources ========================= In the ``camocomp`` directory (same one where you found this file), execute:: python setup.py install Note: this only works on Unix-like platforms. License ======= New BSD License How to use it ============= We provide a utility script called ``camocomp_video`` that can generate a stabilized copy of a video. The video ``example_mocomp.avi`` in the ``example`` directory contains a stabilized video obtained with the command:: camocomp_video -o example_mocomp.avi -c -v p_y -f 40 example.avi Depending on your input videos, you might need to play around with the input field of view parameter (`-f` option) and/or the variables to optimize ('v'iewpoint, 'p'itch, 'y'aw, and 'r'oll). How does it work ================ It relies on image stitching techniques similar to the ones used to create panoramas from multiple photos. This allows to compensate for a vast array of time-varying camera motions (e.g. camera shake, pan, zoom, tilt). Limitations =========== The stitching approach faces the following limitations: - it assumes that a large part of each frame is the background; - it also assumes that the background is textured (in order to detect ``control points`` on the background); - the spatial extent of the camera motion must be rather limited (i.e. restricted panning or translation, such that the background covered is limited) in order to avoid an extravagantly large output resolution; - some camera motions are problematic (e.g. rotation around the subject); - finding the correct input field of view parameter might require some trial and error; - the stitching optimization step (using hugin's autooptimizer) is VERY slow.

نحوه نصب

نصب پکیج whl camocomp-0.1:

pip install camocomp-0.1.whl

نصب پکیج tar.gz camocomp-0.1:

pip install camocomp-0.1.tar.gz