def transformations(src, choice):
if choice == 0:
# Rotate 90
src = cv2.rotate(src, rotateCode=cv2.ROTATE_90_CLOCKWISE)
if choice == 1:
# Rotate 90 and flip horizontally
src = cv2.rotate(src, rotateCode=cv2.ROTATE_90_CLOCKWISE)
src = cv2.flip(src, flipCode=1)
if choice == 2:
# Rotate 180
src = cv2.rotate(src, rotateCode=cv2.ROTATE_180)
if choice == 3:
# Rotate 180 and flip horizontally
src = cv2.rotate(src, rotateCode=cv2.ROTATE_180)
src = cv2.flip(src, flipCode=1)
if choice == 4:
# Rotate 90 counter-clockwise
src = cv2.rotate(src, rotateCode=cv2.ROTATE_90_COUNTERCLOCKWISE)
if choice == 5:
# Rotate 90 counter-clockwise and flip horizontally
src = cv2.rotate(src, rotateCode=cv2.ROTATE_90_COUNTERCLOCKWISE)
src = cv2.flip(src, flipCode=1)
return src
python类rotate()的实例源码
def rotating_example():
img = cv2.imread('./data/hi.jpg')
vwriter = VideoWriterRGB('hi-video.avi')
frames = 0
for angle in range(0, 360, 5):
rot = imutils.rotate(img, angle=angle)
cv2.imshow("Angle = %d" % (angle), rot)
vwriter.addFrame(rot)
frames += 1
for angle in range(360, 0, -5):
rot = imutils.rotate(img, angle=angle)
cv2.imshow("Angle = %d" % (angle), rot)
vwriter.addFrame(rot)
frames += 1
vwriter.finalise()
print("Created movie with %d frames" % frames)
def transformations2(src, choice):
mode = choice // 2
src = imutils.rotate(src, mode * 90)
if choice % 2 == 1:
src = cv2.flip(src, flipCode=1)
return src
