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The histogram of oriented gradients (HOG) is a feature descriptor used in computer vision and image processing for the purpose of object detection.The technique counts occurrences of gradient orientation in localized portions of an image.
The pygmy hog (Porcula salvania) is a very small and endangered species of pig and the only species in the genus Porcula.Endemic to India, the pygmy hog is a suid native of the alluvial grasslands in the foothills of the Himalayas, at elevations of up to 300 m (980 ft).
Groundhog Day (Pennsylvania German: Grund'sau dåk, Grundsaudaag, Grundsow Dawg, Murmeltiertag; Nova Scotia: Daks Day) [1] [2] [3] is a tradition observed regionally in the United States and Canada on February 2 of every year.