Python 图像处理库(PIL)--Image学习

imlist = imtools.get_imlist(filename)

img = Image.open(filename)

immatrix = array([array(Image.open(im)).flatten() for im in imlist], 'f')

img = Image.open(filename)
out = img.resize((50, 50))      #修改尺寸
img = array(out,'f')

R = img[:, :, 0]               #各个通道的值
G = img[:, :, 1]
B = img[:, :, 2]
features = []
#imshow(img)
for i in range(img.shape[0]):
for j in range(img.shape[1]):
features.append([R[i][j], G[i][j], B[i][j]])  #每个像素点，对应三个值