opencv python用selectROI與12星座截圖

 

 python code如下：

print('利用cv2.selectROI來取圖')
 
import cv2
 
for i in range(1,13):
    im=cv2.imread('0.png')
#    print(im.shape)
    r=cv2.selectROI('roi', im )
#    print(r)
#    print(type(r))
    x,y,w,h=r
    im2=im[y:y+h, x:x+w]
    im2=cv2.resize(im2, (im2.shape[1]*2, im2.shape[0]*2), 4)
    cv2.imshow('select'+str(i), im2)
    cv2.imwrite(str(i)+'.png', im2)
    cv2.waitKey(0)
cv2.destroyAllWindows()