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Mosaic

A real time interactive mosaic made by combining a live video feed with still imagery from social networks.

GPU based background/foreground segmentation with sparse blob detection is used to activate the mirror, allowing for interactive changing of individual tile scale on movement.

Applications

This project contains several applications which are meant to be run together, but can run standalone. The project can be separated into two main parts two. First there is a node js based administration panel that retrieves instagram images in realtime. Using the administration panel one can approve or decline an instagram image as part of the mosaic. Secondly there are a couple of standalone, (Mac only, tested on 10.9.3) application that analyze the instagram images, create the mosaic and the smoothly scrolling grids.

Application Info Directory
AppMosaic Generates a mosaic in real time from a video stream projects/mosaic
AppGridLeft A smooth scrolling grid of images projects/grid
AppGridRight Same as AppGridLeft, other scrolling direction projects/grid
AppImageProcessor Performs image analysis projects/topshop
AppPolaroid Generates the polaroid style images projects/polaroid
Image Downloaded Downloads approved images from instagran (node.js) projects/admin/apps/image_downloader
Administrion Panel Approve / decline instagram images (node.js) projects/admin/apps/instagram_admin

Installation

Compile App{Mosaic,GridLeft,GridRight,ImageProcessor}

We created a scripted build process for compiling the Apps* which makes compiling the applications fairly simple. The App* do need a couple of external libraries which may run fine now, but they can/will change in the future so refer to the versions of the list of dependencies when you get into trouble. Note that at this time, the application will only run on Mac 10.9.

mkdir Mosaic
cd Mosaic
git clone https://github.com/HellicarAndLewis/Mosaic.git .
cd build
./build_mac_dependencies.sh
./release.sh

When you get into trouble with compiling, please get in touch with roxlu

Administration Panel and Image Downloader

For more information about how to install the administration panel and the image downloader see the README in projects/admin/apps/instagram_admin.

Dependencies

Library Version Download URL or GIT
libuv a4f03504ceb7c7db6f05cc176bb37cd4b632bda3 libuv
libpng 1.2.51 png
libjpeg v9a jpg
libz 1.2.8 libz
glfw3 a5281df501926ab8d9af99c5ea2af7fb87e3b505 glfw
libav 749b1f1359b5af0a08221923b016551b18ab6171 libav
librxp_player ccd77f4302ecf315bff7ba8b66f593fa42fb38bf rxp_player
libtheora r19181 libtheora svn
libvorbis 1.3.3 libvorbis
libogg 1.3.1 libogg
libcurl 7.37.1 libcurl
yasm 1.3.0 yasm
libjansson 2.6 jansson
libcairo 29a8b4e970379ca04a7db8e63c71bb34c0e349ce cairo
pixman 0.32.6 pixman
freetype 336735d8de0bc5f9ef8018ae11d322cb6e59fa4a freetype
opencv 3.0.0-alpha opencv
rapidxml 1.13 rapidxml
glad ada89398e8b7b4af64648e328347b70d48600a2a glad
imagemagick 6.8.9 imagemagick
gettext 0.19.2 gettext
libtracker 75814ff80f5f32f9b4e633b525072d178f3957f6 tracker

We're using the following working set

Application Version
autoconf 2.69
libtool 2.4.2
automake 1.14
pkgconfig 0.28

We're using the following Mac 10.9 frameworks

Framework & system libs
CoreFoundation
AVFoundation
CoreMedia
Cocoa
OpenGL
IOKit
CoreVideo
OpenCL
AudioUnit
CoreAudio
AudioToolbox
ssl
crypto
ldap
bz1

Authors

Martin Bartels Diederick Huijbers (roxlu)

Thanks

Huge thanks to Max Rupp for his advise and code examples on high performance openGL and James Acres & Victor Martin for their listening ears and especially Victor for testing super smooth scrolling.

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A real time interactive mosaic made by combining a live video feed with still imagery from social networks.

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