锐化效果显示图像 例子

 

锐化以后

 

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;

namespace AcuteImage
{
    public partial class Frm_Main : Form
    {
        public Frm_Main()
        {
            InitializeComponent();
        }

        public Image AcuteEffect(PictureBox Pict)
        {
            int Var_W = Pict.Width;										//获取图片的宽度
            int Var_H = Pict.Height;										//获取图片的高度
            Bitmap Var_bmp = new Bitmap(Var_W, Var_H);					//根据图片的大小实例化Bitmap类
            Bitmap Var_SaveBmp = (Bitmap)Pict.Image;						//根据图片实例化Bitmap类
            int[] Laplacian = { -1, -1, -1, -1, 9, -1, -1, -1, -1 };					//拉普拉斯模板
            //遍历图象中的各象素
            for (int i = 1; i < Var_W - 1; i  )
                for (int j = 1; j < Var_H - 1; j  )
                {
                    int tem_r = 0, tem_g = 0, tem_b = 0, tem_index = 0;				//定义变量
                    for (int c = -1; c <= 1; c  )
                        for (int r = -1; r <= 1; r  )
                        {
                            Color tem_color = Var_SaveBmp.GetPixel(i   r, j   c);		//获取指定象素的颜色值
                            tem_r  = tem_color.R * Laplacian[tem_index];			//设置R色值
                            tem_g  = tem_color.G * Laplacian[tem_index];			//设置G色值
                            tem_b  = tem_color.B * Laplacian[tem_index];			//设置B色值
                            tem_index  ;
                        }
                    tem_r = tem_r > 255 ? 255 : tem_r;	//如果R色值大于255，将R色值设为255，否则不变
                    tem_r = tem_r < 0 ? 0 : tem_r;		//如果R色值小于0，将R色值设为0，否则不变
                    tem_g = tem_g > 255 ? 255 : tem_g;	//如果G色值大于255，将R色值设为255，否则不变
                    tem_g = tem_g < 0 ? 0 : tem_g;		//如果G色值小于0，将R色值设为0，否则不变
                    tem_b = tem_b > 255 ? 255 : tem_b;	//如果B色值大于255，将R色值设为255，否则不变
                    tem_b = tem_b < 0 ? 0 : tem_b;		//如果B色值小于0，将R色值设为0，否则不变
                    Var_bmp.SetPixel(i - 1, j - 1, Color.FromArgb(tem_r, tem_g, tem_b));	//设置指定象素的颜色
                }
            return Var_bmp;
        }

        private void button1_Click(object sender, EventArgs e)
        {
            pictureBox1.Image = AcuteEffect(pictureBox1);
        }
    }
}

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资源文件列表

AcuteImage.sln , 920
AcuteImage.suo , 27136
AcuteImage/AcuteImage.csproj , 4024
AcuteImage/bin/Debug/AcuteImage.exe , 2104320
AcuteImage/bin/Debug/AcuteImage.pdb , 24064
AcuteImage/Frm_Main.cs , 2723
AcuteImage/Frm_Main.designer.cs , 3096
AcuteImage/Frm_Main.resx , 3147807
AcuteImage/obj/Debug/AcuteImage.csproj.FileListAbsolute.txt , 3677
AcuteImage/obj/Debug/AcuteImage.csproj.GenerateResource.Cache , 850
AcuteImage/obj/Debug/AcuteImage.csprojResolveAssemblyReference.cache , 1757
AcuteImage/obj/Debug/AcuteImage.exe , 2104320
AcuteImage/obj/Debug/AcuteImage.Frm_Main.resources , 2094948
AcuteImage/obj/Debug/AcuteImage.pdb , 24064
AcuteImage/obj/Debug/AcuteImage.Properties.Resources.resources , 180
AcuteImage/obj/Debug/DesignTimeResolveAssemblyReferencesInput.cache , 7152
AcuteImage/obj/Debug/TempPE/Properties.Resources.Designer.cs.dll , 4608
AcuteImage/Program.cs , 494
AcuteImage/Properties/AssemblyInfo.cs , 1352
AcuteImage/Properties/Resources.Designer.cs , 2860
AcuteImage/Properties/Resources.resx , 5612
AcuteImage/Properties/Settings.Designer.cs , 1110
AcuteImage/Properties/Settings.settings , 249