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I need to develop a video generator that takes in a set of images, music files and outputs mp4 videos. The platform is linux. Was wondering if there are any existing libraries that can do this job ?
Thanks
I believe Processing can do what you want.
you can use ImageMagick for video part. It has both good graphics/video library and corresponding console application. For sound embedding use gstreamer.
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For a more complex project, I need to compute the approximate, relative distances of objects from two images (from stereo-cameras). Practically what this neat tutorial explains: https://chrisjmccormick.wordpress.com/2014/01/10/stereo-vision-tutorial-part-i/ and with a result like that
Think I shouldn't be reinventing the wheel for this project and since speed is very important (realtime from two videostreams) I'm looking for a native library (preferably in C++ where the whole project is written in) for this task.
Does anyone have a suggestion?
Open source would be greatest but not mandatory.
Huge thanks in advance!
try with LIBELAS library (Library for Efficient Large-scale Stereo Matching).
Best!
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I need a library for mostly color manipulation, I want to make a image become black and white, and augment the contrast, so that Tesseract (Google OCR library) can read better the images that I throw at it.
Or if someone has a better idea on how to improve Tesseract results, I am all for it.
Try OpenCV
http://sourceforge.net/projects/opencv/
Or imagemagick
http://www.imagemagick.org/script/magick++.php
or CImg, probably the easiest to use: no install it's just a header file.
If you do not want to use a big library you can code the algorithm yourself:
https://web.archive.org/web/20140825114946/http://bobpowell.net/image_contrast.aspx
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I am looking for an open source C/C++ image/video thumbnail generation libraries.
(other than ffmpeg or DevIL)
Will Image Magick work? It is quite a capable library with C++ (and C) bindings. It does support grabbing still frames from some video formats, see here. It's a command-line example, but should work from the API as well.
Try ffmpegthumbnailer:
This thumbnailer was designed to be as fast and lightweight as possible. The only dependencies are ffmpeg, libpng and libjpeg.
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Can you recommend an open source library (C or C++) to convert MS Office files into a set of images?
I am evaluating ImageMagick and while it does support PDF files, it does not work with MS Office files.
This library is quite popular and used by abiword (gnome) and kword (kde): wvWare
Hm I've seen that OpenOffice does a good job on "translating" Word to whatever, so how about installing OpenOffice and maybe using it's UNO model from C++ to solve that problem?
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We want to include data visualization in our desktop GUI (mostly timelines and graphs; clickable, draggable). We want to restrict to open-source, non-copyleft C++ libraries that allow commercial use and are portable across many platforms. Which library can I use? Our GUI is based on WxWidgets.
there is VTK.
And if data visualization is your thing, have a look at opendx too.
I think this question would be easier to answer if you also stated which other GUI components you use. Perhaps that limits the choice of available libraries. Since you're C++ and cross-platform, maybe wxWindows? Would be good not to have to guess.