open cv 旋转图像

[zibuyu1995]

# coding=utf-8

import cv2
import numpy as np

in_image = cv2.imread('./image/image6.jpg')
h, w, ch = in_image.shape

forward_rotate = np.zeros((w, h, ch))
image_flip = np.fliplr(in_image)
for c in range(ch):
    for row in range(h):
        forward_rotate[:, row, c] = image_flip[row, :, c]

reverse_rotate = np.zeros((w, h, ch))
output = np.zeros((w, h, ch))
for c in range(ch):
    for row in range(h):
        output[:, h - 1 - row, c] = in_image[row, :, c]

cv2.imshow('in_image', in_image)
cv2.imshow('flip_image', image_flip)
cv2.imshow('forward_rotate', forward_rotate)
cv2.imshow('reverse_rotate', reverse_rotate)

# x86 cv2.waitKey(0) x64 cv2.waitKey(0) & 0xFF
key = cv2.waitKey(0) & 0xFF
if key == ord('q'):
    cv2.destroyAllWindows()