Python OpenCV 图片简单拆分与拼接
本文主要实现图片的简单拼接与拆分
一、拆分
示例图片:
拆分代码如下:
主要思路:读取图片后拆分为两个矩阵,再显示即可
import cv2
path3 = '/home/cdyuyanpeng/Documents/ceshi/test.png'
img3 = cv2.imread(path3)
# the image height
sum_rows = img3.shape[0]
# the image length
sum_cols = img3.shape[1]
part1 = img3[0:sum_rows, 0:sum_cols/2]
part2 = img3[0:sum_rows, sum_cols/2:sum_cols]
cv2.imshow('part1', part1)
cv2.imshow('part2', part2)
cv2.waitKey()
拆分结果如下:
二、图片拼接
主要思路:分别读取图片,新建一个目标像素大小的0矩阵,最后将读取的图片替换新建矩阵中目标位置上的元素即可。
拼接代码如下:
import cv2
import numpy as np
path1 = '/home/cdyuyanpeng/Documents/ceshi/part1.png'
path2 = '/home/cdyuyanpeng/Documents/ceshi/part2.png'
img1 = cv2.imread(path1)
img2 = cv2.imread(path2)
# new image
final_matrix = np.zeros((280, 510, 3), np.uint8)
# change
final_matrix[0:280, 0:255] = img1
final_matrix[0:280, 255:510] = img2
# cv2.imshow('img1', img1)
# cv2.imshow('img2', img2)
cv2.imshow('image', final_matrix)
cv2.waitKey()
ALL DOWN!