opencv - Histogram comparision -


is possible compare 2 intensity histograms (derived gray-scale images) , obtain likeness factor? in other words, i'm trying detect presence or absence of soccer ball in image. i've tried feature detection algorithms (such sift/surf) not reliable enough application. need reliable , robust.

many thoughts everyone.

this answer (comparing 2 histograms) might you. generally, intensity comparisons quite sensitive e.g. white during day time different white during night time.

i think should able derive comparehist() in opencv (http://docs.opencv.org/doc/tutorials/imgproc/histograms/histogram_comparison/histogram_comparison.html) suit needs if comparehist() fit purpose.

if not, paper http://www.researchgate.net/publication/222417618_tracking_the_soccer_ball_using_multiple_fixed_cameras/file/32bfe512f7e5c13133.pdf tracks ball multiple cameras , might more ideas though might not using multiple cameras.


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