如何使用c#在特定文件夹中反转所有Jpg图像? [英] How Can I Invert All Jpg Images In A Specific Folder with using c#?
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问题描述
嘿伙计们;
首先,我是关于c#的新手,我发现了一些用于反转互联网文件的jpg图像颜色的代码。 br />
但是我只需要一个exe文件来反转特定文件夹中的所有jpg图像
你能来吗请帮帮我吧?我正在使用VS2013终极...
Hey guys;
First of all i'm new about c# and i found some codes for inverting colors of jpg images for a file around the internet.
But all i need is a exe file that inverting all jpg images in a specific folder
Can you help me about it please? I'm using VS2013 ultimate...
推荐答案
如果你有代码来反转特定的图像,那么你可以简单地将调用包装在一些简单的路径操作中。这样的事情可能是合适的:
If you have code to invert a particular image, then you can simply wrap the calls to this in some simple path operations. Something like this might be appropriate:
public void InvertAllImagesInFolder(string folderName)
{
if (string.IsNullOrWhitespace(folderName)) throw new ArgumentException("You must supply the folder name");
if (!Directory.Exists(folderName)) return; // Don't bother going any further - the folder doesn't exists.
string[] files = Directory.GetFiles(folderName, "*.jpg")
foreach (string file in files)
{
ProcessImage(file); // Call the image invert method.
}
}
我希望这会有所帮助。
I hope this helps.
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO;
using System.Drawing.Imaging;
namespace Test_Image1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
// image folder
string path = @"d:\tmp\16";
// for all files
foreach (var f in Directory.GetFiles(path, "*.jpg"))
{
// read bitmap
using (Bitmap b = Bitmap.FromFile(f) as Bitmap)
{
// process bitmap
using (Bitmap b2 = this.ProcessBitmap(b))
{
// save new bitmap
b2.Save(Path.Combine(path, "pp_" + Path.GetFileName(f)), ImageFormat.Jpeg);
}
}
}
foreach (var f in Directory.GetFiles(path, "pp_*.jpg"))
{
string fn = f.Replace("pp_", "");
File.Delete(fn);
File.Move(f, fn);
}
}
// some operation
private Bitmap ProcessBitmap(Bitmap b)
{
// new bitmap
Bitmap b2 = new Bitmap(b);
// traverse all pixels
for (int i = 0; i < b2.Width; i++)
{
for (int j = 0; j < b2.Height; j++)
{
// get original color
Color c = b2.GetPixel(i, j);
// modify pixel
b2.SetPixel(i, j, Color.FromArgb(c.A, 255 - c.R, 255 - c.G, 255 - c.B));
}
}
return b2;
}
}
}
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