routine

np/test2.py

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+import numpy as np
+from PIL import Image
+
+file = Image.open('dog.png')
+file.show()
+
+image = np.array(file)
+
+print(image.shape)
+
+# 直接访问像素点颜色
+print(image[100, 100])
+
+red = image[:, :, 0]
+green = image[:, :, 1]
+blue = image[:, :, 2]
+
+Image.fromarray(red).show()
+Image.fromarray(green).show()
+Image.fromarray(blue).show()
+
+# 直接混合图片
+# conbine = a1 * 0.2 + a2 * 0.8
+# 显示图片需要换为unit8
+# combine.astype(np.unit8)
+