cv2.read 与cv2.imread的区别_vc泡腾片不能和什么一起吃

import matplotlib.pyplot as plt
import cv2

# cv2.imread()接口读图像，读进来直接是BGR 格式数据格式在 0~255，通道格式为(W,H,C)
img_BGR = cv2.imread('D:/Desktop/lena.jpg')
plt.subplot(2,2,1)
plt.imshow(img_BGR)
plt.axis('off')
plt.title('BGR')


img_RGB = cv2.cvtColor(img_BGR, cv2.COLOR_BGR2RGB)
plt.subplot(2,2,2)
plt.imshow(img_RGB)
plt.axis('off')
plt.title('RGB')

img_GRAY = cv2.cvtColor(img_BGR, cv2.COLOR_BGR2GRAY)
print(img_BGR.shape)
print(img_GRAY.shape)
print(type(img_GRAY))
print(img_GRAY.astype)

print(img_GRAY.dtype.name, img_BGR .dtype.name)

from skimage import io,data
img=data.chelsea()
print(img.dtype.name)

plt.subplot(2,2,3); plt.imshow(img_GRAY);plt.axis('off');plt.title('GRAY')

img_HSV = cv2.cvtColor(img_BGR, cv2.COLOR_BGR2HSV)
plt.subplot(2,2,4); plt.imshow(img_HSV);plt.axis('off');plt.title('HSV')

plt.show()