Old Hat (horse) of Flowers, and Venture were also competing. Among this company, she was voted Champion Female Handicap Horse by the Thoroughbred Racing Association in 1964, although the rival "Daily Racing Form" chose the three-year-old Tosmah. Old Hat won both awards in her best season, 1965, when she was six years old. Old Hat raced for six years, starting in 80 races. She won 35 times, placed 18 times, and came in third 9 times. All in all, she was in the money 62 times. Old Hat (horse) Old Hat (foaled in Kentucky in 1959), was an American Thoroughbred racing mare by
Adaptive histogram equalization Adaptive histogram equalization Adaptive histogram equalization (AHE) is a computer image processing technique used to improve contrast in images. It differs from ordinary histogram equalization in the respect that the adaptive method computes several histograms, each corresponding to a distinct section of the image, and uses them to redistribute the lightness values of the image. It is therefore suitable for improving the local contrast and enhancing the definitions of edges in each region of an image. However, AHE has a tendency to overamplify noise in relatively homogeneous regions of an image. A variant of adaptive histogram equalization called contrast limited