초고속 메모리카피
http://opencvpython.blogspot.kr/2012/06/fast-array-manipulation-in-numpy.html
numpy data copy
x = np.random.randint(0,5,(2000,2000))
green = [0,255,0]
blue = [255,0,0]
red = [0,0,255]
white = [255,255,255]
black = [0,0,0]
color = [green,blue,red,white,black]
color = np.array(color,np.uint8)
y = color[x]
mulder@~/Project/mulder/ml$ python "/Users/mulder/Project/mulder/ml/OpenCV-Python/mulder/base01.py"
makeSimple S:18:28:40
makeSimple E:18:28:44
makeByPallete S:18:28:44
makeByPallete E:18:28:44
ms:58
mulder@~/Project/mulder/ml$