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这篇文章主要介绍“C#怎么改变图片大小并且重命名”，在日常操作中，相信很多人在C#怎么改变图片大小并且重命名问题上存在疑惑，小编查阅了各式资料，整理出简单好用的操作方法，希望对大家解答”C#怎么改变图片大小并且重命名”的疑惑有所帮助！接下来，请跟着小编一起来学习吧！
添加NuGet包
选择新版就好了
安装完成后右键项目重新生成方案
使用OpenCvSharp.CPlusPlus命名空间
using OpenCvSharp.CPlusPlus;
写一个函数用来改变图片大小并且重新命名
read_path是存储图片的文件夹的路径，write_path是改变后图片存储的文件夹路径，filename是图片重命名，width和height分别为图片修改后的宽和高
public static void ResizeImg(String read_path,String write_path,String filename,double width,double height) { Mat img1 = new Mat(read_path); Mat img2 = img1; OpenCvSharp.CPlusPlus.Size size = new OpenCvSharp.CPlusPlus.Size(width, height); Cv2.Resize(img1, img2, size, 0, 0); Cv2.ImWrite(write_path+"\\"+ filename, img2); }
在Main函数中使用该函数
static void Main(string[] args) { string dir_path = @"G:\TestImg";//读取路径 String write_path = "G:\\TestImg2";//存储路径 String[] filenames=Directory.GetFiles(dir_path); for (int i = 0; i < filenames.Length; i++) { ResizeImg(filenames[i], write_path, i + ".png", 200, 300); } Console.ReadKey(); }
运行结果
完整代码
using System;using System.Collections.Generic;using System.Drawing;using System.Linq;using System.Text;using System.Threading.Tasks;using OpenCvSharp;using OpenCvSharp.CPlusPlus;using System.Runtime.InteropServices;using System.IO;namespace ResizeTest{ class Program { static void Main(string[] args) { string dir_path = @"G:\TestImg";//读取路径 String write_path = "G:\\TestImg2";//存储路径 String[] filenames=Directory.GetFiles(dir_path); for (int i = 0; i < filenames.Length; i++) { ResizeImg(filenames[i], write_path, i + ".png", 200, 300); } Console.ReadKey(); } public static void ResizeImg(String read_path,String write_path,String filename,double width,double height) { Mat img1 = new Mat(read_path); Mat img2 = img1; OpenCvSharp.CPlusPlus.Size size = new OpenCvSharp.CPlusPlus.Size(width, height); Cv2.Resize(img1, img2, size, 0, 0); Cv2.ImWrite(write_path+"\\"+ filename, img2); } } }
到此，关于“C#怎么改变图片大小并且重命名”的学习就结束了，希望能够解决大家的疑惑。理论与实践的搭配能更好的帮助大家学习，快去试试吧！若想继续学习更多相关知识，请继续关注创新互联网站，小编会继续努力为大家带来更多实用的文章！
