Connected Component Labeling Algorithm for GPGPU

These are OpenCL, AVX2 and Java implementation of the algorithm explained in the following web page.

http://ito-lab.naist.jp/~n-sibata/cclarticle/index.xhtml

[1] Naoki Shibata, Shinya Yamamoto: GPGPU-Assisted Subpixel Tracking Method for Fiducial Markers, Journal of Information Processing, Vol.22(2014), No.1, pp.19-28, 2014-01.

[2] Naoki Shibata, Shinya Yamamoto: SumiTag : Inconspicuous Fiducial Marker and GPGPU-Assisted Tracking Method, IPSJ SIG Technical Reports, Nov. 17, 2011.