srcdir="C:\\drorbn\\BBS\\shots\\"

shot=Import[srcdir<>"Dror-170927-204747.jpg"]

RemoveBackground[shot]

RemoveBackground[shot, {"Background", "Dark"}]

RemoveBackground[shot//ColorNegate, {"Background", "Dark"}]

EdgeDetect[shot]

LocalAdaptiveBinarize[shot,300]

MorphologicalBinarize[shot]

MorphologicalBinarize[shot]//ColorNegate

ChanVeseBinarize[shot]

ColorQuantize[shot,4]

ColorQuantize[shot,2]