Fixed memory leak in BinarizeOtsuAdaptiveThreshold (Issue #149).
Fixed memory leak in BinarizeOtsuAdaptiveThreshold (Issue #149).

nguyenq/tesseract,anshul1912/tesseract-1,charlesw/tesseract,Fabsky/tesseract,rmarinho/tesseract.net,akorentlab/tesseract,haf/tesseract.net,haf/tesseract.net,Capibara-/tesseract,bing6/tesseract,beni55/tesseract