Question

C#编程实现图像处理

毕业设计做的是C#实现图像处理，平台是Microsoft visual studio 2008，我已实现了大部分功能，现在缺少的是以下几个功能：
1、拖动鼠标选中一块矩形区域
2、将鼠标选中的区域的像素值改成与背景相同的。
3、修改完毕的部分图像和整体图像合并保存。
哪位高手能给点建议？代码算法都行。多谢。

Answer 1

给你点思路
1.当鼠标点击图像时记录鼠标在图像出的坐标,
然后患处一个矩形框做为选择矩形区域，
记录鼠标松开的坐标，
任何根据刚才记录的坐标找到这个矩形，
获取背景像素，画到刚才那个矩形框内（坐标已有了，就像画水印一样简单）
最好Save图片即可

很简单的，都在graphics方法中

Answer 2

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Drawing.Imaging;

namespace WindowsFormsApplication17
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();

}
public int RD;
public Color C;
public int D_M_X;
public int D_M_Y;

public int U_M_X;
public int U_M_Y;

private void button1_Click(object sender, EventArgs e)
{
Bitmap T_C = (Bitmap)pictureBox1.Image;
for (int a = D_M_X; a <= U_M_X - D_M_Y; a++)
{
for (int b = D_M_Y; b <= U_M_Y - D_M_Y; a++)
{
T_C.SetPixel(a,b,C);
}
}

pictureBox1.Image = T_C;
}

private void radioButton1_CheckedChanged(object sender, EventArgs e)
{
RD = 1;
pictureBox1.MouseDown += new MouseEventHandler(pictureBox1_MouseDown);

}

private void radioButton2_CheckedChanged(object sender, EventArgs e)
{
RD = 2;

pictureBox1.MouseDown += new MouseEventHandler(pictureBox11_MouseDown);

}

private void pictureBox1_MouseDown(object sender, MouseEventArgs e)
{
Bitmap bit = (Bitmap)pictureBox1.Image;
Color C = bit.GetPixel(e.X, e.Y);

Bitmap T_C = new Bitmap(pictureBox2.Width, pictureBox2.Height);
for (int a = 0; a <= T_C.Width - 1; a++)
{
for (int b = 0; b <= T_C.Height - 1; b++)
{
T_C.SetPixel(a, b, Color.FromArgb(C.R, C.G, C.B));
}

}
pictureBox2.Image = T_C;
button1.Text = C.R.ToString();
}

private void pictureBox11_MouseDown(object sender, MouseEventArgs e)
{
D_M_X = e.X;
D_M_Y = e.Y;

pictureBox1.MouseMove += new MouseEventHandler(pictureBox1_MouseMove);

}

private void pictureBox1_MouseMove(object sender, MouseEventArgs e)
{

pictureBox1.MouseUp+=new MouseEventHandler(pictureBox1_MouseUP);

}

private void pictureBox1_MouseUP(object sender,MouseEventArgs e)
{
D_M_X = e.X;
D_M_Y = e.Y;

}
}

}

只是一个思路 你看下 程序不好 只是一个思路。。