图像拼接-np方法-hstcak/vstack

本文详细介绍了使用Python的OpenCV库和NumPy库实现图像拼接的方法。通过调整图像大小并利用np.hstack和np.vstack函数,可以轻松地将两张图片进行水平或垂直拼接。文章提供了完整的代码示例,展示了如何读取图像、调整尺寸以及拼接和显示结果。

目标:将两个图像进行拼接,并显示
方法:numpy的np.hstcak和np.vstack

import cv2
import numpy as np
imgA = cv2.imread('dog0.jpg')
imgB = cv2.imread('dog1.jpg')
#在进行拼接之前,必须将两个img resize成同一个size,
#因为np.hstack和np.vstack实际上是堆叠数组,不过按照列和行进行堆叠数组
size = (300, 300)
imgA = cv2.resize(imgA, size)
imgB = cv2.resize(imgB, size)
#水平拼接
splice0 = np.hstack((imgA, imgB![)]
#垂直拼接
splice1 = np.vstack((imgA, imgB))
cv2.imshow('splice0', splice)
cv2.imshow('splice1', splice)
cv2.waitKey()
cv2.destroyAllWindows()

splice0
splice1
np.vstack
numpy.hstack
详细参数看链接

Traceback (most recent call last): File "/home/ma-user/modelarts/user-job-dir/code/tasks/bev_task/uvp_module/datasets_v2/load_planningv2.py", line 94, in load train_dic, label_dic, extra_dic = self.load_impl(ctx) File "/home/ma-user/modelarts/user-job-dir/code/tasks/bev_task/uvp_module/datasets_v2/data_utils.py", line 224, in worker_func val = origin_func(self, ctx, *args, **kwargs) File "/home/ma-user/modelarts/user-job-dir/code/tasks/bev_task/uvp_module/datasets_v2/load_planningv2.py", line 80, in load_impl plan_data = self.plan_data_generator.generate_data(ctx) File "/home/ma-user/modelarts/user-job-dir/code/tasks/bev_task/uvp_module/datasets_v2/e2e_plan_loader/data_generator/plan_data_generator.py", line 2015, in generate_data results, is_intersection = label_steering(pkl) File "/home/ma-user/modelarts/user-job-dir/code/tasks/bev_task/uvp_module/datasets_v2/label_steering.py", line 772, in label_steering ego_traj = concatenate_ego_traj_with_p2p( File "/home/ma-user/modelarts/user-job-dir/code/tasks/bev_task/uvp_module/datasets_v2/label_steering.py", line 425, in concatenate_ego_traj_with_p2p return np.vstack([head_path, ego_traj, tail_path]) File "<__array_function__ internals>", line 200, in vstack File "/home/ma-user/miniconda3/envs/PyTorch-2.3.1/lib/python3.9/site-packages/numpy/core/shape_base.py", line 296, in vstack return _nx.concatenate(arrs, 0, dtype=dtype, casting=casting) File "<__array_function__ internals>", line 200, in concatenate ValueError: all the input array dimensions except for the concatenation axis must match exactly, but along dimension 1, the array at index 0 has size 0 and the array at index 1 has size 2 list index out of range
最新发布
09-11
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