元组和列表
a = (1, 2) # a is a tuple
b = list(a) # b is a list
c = tuple(b) # c is a tuple
元组列表转和ndarray 数组之间转换
a = (1, 2) # a is a tuple
b = np.array(a) # b is an numpy array
c = tuple(b) # c is a tuple
a = [1, 2] # a is a python array
b = np.array(a) # b is a numpy array
c = list(b) # c is a python list
OpenCV和PIL之间转换
1 from PIL import Image 2 import numpy as np 3 import cv2 4 img_cv=cv2.imread('C:/Users/dell/Desktop/1.jpg') 5 img_pil=Image.fromarray(cv2.cvtColor(img_cv,cv2.COLOR_BGR2RGB)) #opencv转为PIL
6 img_cv2=cv2.cvtColor(np.asarray(img_pil),cv2.COLOR_RGB2BGR)#PIL转为OpenCV
7 img_pil.show()
PIL，OpenCV和ndarray 数组之间转换
1 from PIL import Image 2 import numpy as np 3 import cv2 4 img_cv=cv2.imread('C:/Users/dell/Desktop/1.jpg')##opencv读取图像
5 img_pil=Image.open('C:/Users/dell/Desktop/2.jpg')##PIL读取图像
6 img_opencv_np=np.array(img_cv)#opencv转为ndarray数组
7 img_pil_np=np.array(img_pil)#PIL转为ndarray数组
8 img_pil.show() 9 cv2.imshow("cv",img_cv) 10 cv2.waitKey(0)