Cross Reference: /external/opencv3/doc/tutorials/imgproc/histograms

`Name`	`Date`	`Size`
Up to higher level directory
`back_projection/`	21-Oct-2016
`histogram_calculation/`	21-Oct-2016
`histogram_comparison/`	21-Oct-2016
`histogram_equalization/`	21-Oct-2016
`template_matching/`	21-Oct-2016