python+opencv实现堆叠图片

本文实例为大家分享了python+opencv实现堆叠图片的具体代码，供大家参考，具体内容如下

# import cv2
# import numpy as np
#
# img = cv2.imread('images/full.jpg')
#
# img_hor = np.hstack((img,img))
# img_ver = np.vstack((img,img))
#
# cv2.imshow('Horizontal',img_hor)
# cv2.imshow('Vertical',img_ver)
#
# cv2.waitKey(0)
?
import cv2
import numpy as np
?
?
def stackImages(scale,imgArray):
? ? rows = len(imgArray)
? ? cols = len(imgArray[0])
? ? rowsAvailable = isinstance(imgArray[0], list)
? ? width = imgArray[0][0].shape[1]
? ? height = imgArray[0][0].shape[0]
? ? if rowsAvailable:
? ? ? ? for x in range ( 0, rows):
? ? ? ? ? ? for y in range(0, cols):
? ? ? ? ? ? ? ? if imgArray[x][y].shape[:2] == imgArray[0][0].shape [:2]:
? ? ? ? ? ? ? ? ? ? imgArray[x][y] = cv2.resize(imgArray[x][y], (0, 0), None, scale, scale)
? ? ? ? ? ? ? ? else:
? ? ? ? ? ? ? ? ? ? imgArray[x][y] = cv2.resize(imgArray[x][y], (imgArray[0][0].shape[1], imgArray[0][0].shape[0]), None, scale, scale)
? ? ? ? ? ? ? ? if len(imgArray[x][y].shape) == 2: imgArray[x][y]= cv2.cvtColor( imgArray[x][y], cv2.COLOR_GRAY2BGR)
? ? ? ? imageBlank = np.zeros((height, width, 3), np.uint8)
? ? ? ? hor = [imageBlank]*rows
? ? ? ? hor_con = [imageBlank]*rows
? ? ? ? for x in range(0, rows):
? ? ? ? ? ? hor[x] = np.hstack(imgArray[x])
? ? ? ? ver = np.vstack(hor)
? ? else:
? ? ? ? for x in range(0, rows):
? ? ? ? ? ? if imgArray[x].shape[:2] == imgArray[0].shape[:2]:
? ? ? ? ? ? ? ? imgArray[x] = cv2.resize(imgArray[x], (0, 0), None, scale, scale)
? ? ? ? ? ? else:
? ? ? ? ? ? ? ? imgArray[x] = cv2.resize(imgArray[x], (imgArray[0].shape[1], imgArray[0].shape[0]), None,scale, scale)
? ? ? ? ? ? if len(imgArray[x].shape) == 2: imgArray[x] = cv2.cvtColor(imgArray[x], cv2.COLOR_GRAY2BGR)
? ? ? ? hor= np.hstack(imgArray)
? ? ? ? ver = hor
? ? return ver
?
img = cv2.imread('images/lanbojini.jpg')
imgGray = cv2.cvtColor(img,cv2.COLOR_BGR2GRAY)
?
imgStack = stackImages(0.5,([img,imgGray,img],[img,img,img]))
?
# imgStack = stackImages(0.5,([img,imgGray,img],[img,img,img]))
?
# imgHor = np.hstack((img,img))
# imgVer = np.vstack((img,img))
#
# cv2.imshow("Horizontal",imgHor)
# cv2.imshow("Vertical",imgVer)
cv2.imshow("ImageStack",imgStack)
?
cv2.waitKey(0)

效果：

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