python-opencv图像裁剪

在Python中使用OpenCV库进行图像裁剪非常简单，可以按照以下步骤进行操作： 1. 导入OpenCV库 ```python import cv2 2. 读取图像文件 ```python img = cv2.imread('path_to_image') 3. 设置裁剪区域 ```python # 设置裁剪区域的左上角和右下角坐标 x1, y1 = 100, 100 x2, y2 = 200, 200 # 获取裁剪区域 crop_img = img[y1:y2, x1:x2] 4. [显示](https://geek.csdn.net/educolumn/103ca72607c717122e068b9f06a24df6?spm=1055.2569.3001.10083)裁剪后的图像 ```python cv2.imshow('Cropped Image', crop_img) cv2.waitKey(0) cv2.destroyAll[window](https://geek.csdn.net/educolumn/03e5a5a554174a38fdfeb8376bd685e2?spm=1055.2569.3001.10083)s() 完整的[代码](https://geek.csdn.net/educolumn/1572ef9b473b4e00f6b2bf6d428b7c27?spm=1055.2569.3001.10083)示例： ```python import cv2 # 读取图像文件 img = cv2.imread('path_to_image') # 设置裁剪区域的左上角和右下角坐标 x1, y1 = 100, 100 x2, y2 = 200, 200 # 获取裁剪区域 crop_img = img[y1:y2, x1:x2] # [显示](https://geek.csdn.net/educolumn/103ca72607c717122e068b9f06a24df6?spm=1055.2569.3001.10083)裁剪后的图像 cv2.imshow('Cropped Image', crop_img) cv2.waitKey(0) cv2.destroyAll[window](https://geek.csdn.net/educolumn/03e5a5a554174a38fdfeb8376bd685e2?spm=1055.2569.3001.10083)s() ```