ICode9

精准搜索请尝试: 精确搜索
首页 > 编程语言> 文章详细

python numpy 图片 pad 参数详解

2022-05-15 20:00:24  阅读:250  来源: 互联网

标签:plt python pic value Pads vector pad along numpy


python numpy 图片 pad 参数详解 'constant', 'edge', 'linear_ramp', 'maximum', 'mean', 'median', 'minimum', 'reflect', 'symmetric', 'wrap', 'empty'   光看文档不太好理解,因为在网上找不到详细的例子,所以我就自己动手做了一个例子。   如果觉得有收获,欢迎收藏小店哦,感谢<||>    
为了更好的演示,我剪裁了原图右边和下边的留白区域。     mode : str or function, optional     One of the following string values or a user supplied function.
    'constant' (default)         Pads with a constant value.     'edge'         Pads with the edge values of array.     'linear_ramp'         Pads with the linear ramp between end_value and the array edge value.     'maximum'         Pads with the maximum value of all or part of the vector along each axis.     'mean'         Pads with the mean value of all or part of the vector along each axis.     'median'         Pads with the median value of all or part of the vector along each axis.     'minimum'         Pads with the minimum value of all or part of the vector along each axis.     'reflect'         Pads with the reflection of the vector mirrored on the first and last values of the vector along each axis.     'symmetric'         Pads with the reflection of the vector mirrored along the edge of the array.     'wrap'         Pads with the wrap of the vector along the axis. The first values are used to pad the end and the end values are used to pad the beginning.     'empty'         Pads with undefined values.
modes = ['constant', 'edge', 'linear_ramp', 'maximum', 'mean', 'median', 'minimum', 'reflect', 'symmetric', 'wrap', 'empty' ]
pic = cv2.imread('D:/share/QRcode/taobao.jpg') 
pic = cv2.cvtColor(pic, cv2.COLOR_BGR2RGB)
plt.figure(figsize=(500,120))
plt.subplot(12,1,1)
plt.title('Raw(Cut right and down side)')
plt.imshow(pic)
for index, mode in enumerate(modes):
    plt.subplot(12,1,index+2)
    pic_pad = np.pad(pic, ((100,100), (100,100), (0,0)) , mode)
    plt.title(mode)
    plt.imshow(pic_pad)

 

标签:plt,python,pic,value,Pads,vector,pad,along,numpy
来源: https://www.cnblogs.com/undefined-cloud/p/16274192.html

本站声明: 1. iCode9 技术分享网(下文简称本站)提供的所有内容,仅供技术学习、探讨和分享;
2. 关于本站的所有留言、评论、转载及引用,纯属内容发起人的个人观点,与本站观点和立场无关;
3. 关于本站的所有言论和文字,纯属内容发起人的个人观点,与本站观点和立场无关;
4. 本站文章均是网友提供,不完全保证技术分享内容的完整性、准确性、时效性、风险性和版权归属;如您发现该文章侵犯了您的权益,可联系我们第一时间进行删除;
5. 本站为非盈利性的个人网站,所有内容不会用来进行牟利,也不会利用任何形式的广告来间接获益,纯粹是为了广大技术爱好者提供技术内容和技术思想的分享性交流网站。

专注分享技术,共同学习,共同进步。侵权联系[81616952@qq.com]

Copyright (C)ICode9.com, All Rights Reserved.

ICode9版权所有