C# DeOldify 黑白照片 老照片上色

效果

项目

代码

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using static System.Windows.Forms.VisualStyles.VisualStyleElement;
using static System.Windows.Forms.VisualStyles.VisualStyleElement.TaskBand;
using static System.Windows.Forms.VisualStyles.VisualStyleElement.ToolBar;namespace DeOldify_黑白照片_老照片上色
{public partial class Form1 : Form{public Form1(){InitializeComponent();}string fileFilter = "Images (*.bmp; *.emf; *.exif; *.gif; *.ico; *.jpg; *.png; *.tiff; *.wmf)|*.bmp; *.emf; *.exif; *.gif; *.ico; *.jpg; *.png; *.tiff; *.wmf|All files|*.*";string image_path = "";DateTime dt1 = DateTime.Now;DateTime dt2 = DateTime.Now;string startupPath;string model;/// <summary>/// Input image./// </summary>private Bitmap __Input;/// <summary>/// Output image./// </summary>private Bitmap __Output;/// <summary>/// Normal output image./// </summary>private Bitmap __NormalOutput;/// <summary>/// Blurrified input image./// </summary>private Bitmap __BlurryInput;/// <summary>/// Blurrified output image./// </summary>private Bitmap __BlurryOutput;private void button1_Click(object sender, EventArgs e){OpenFileDialog ofd = new OpenFileDialog();ofd.Filter = fileFilter;if (ofd.ShowDialog() != DialogResult.OK) return;pictureBox1.Image = null;image_path = ofd.FileName;__Input = new Bitmap(image_path);//__BlurryInput = __Blurify(__Input);pictureBox1.Image = __Decolorize(__Input);textBox1.Text = "";pictureBox2.Image = null;}/// <summary>/// Converts the image to greyscale./// </summary>/// <param name="source">Input image.</param>/// <returns>Greyscale image.</returns>private static Bitmap __Decolorize(Bitmap source){var result = new Bitmap(source);for (int y = 0; y < result.Height; ++y){for (int x = 0; x < result.Width; ++x){var c = result.GetPixel(x, y);var l = (byte)((c.R + c.G + c.B) / 3);result.SetPixel(x, y, Color.FromArgb(c.A, l, l, l));}}return result;}/// <summary>/// Blurrifies the image./// </summary>/// <param name="source">Input image.</param>/// <returns>Blurrified image.</returns>private static Bitmap __Blurify(Bitmap source){var output = new Bitmap(source.Width, source.Height);for (int y = 0; y < output.Height; ++y){for (int x = 0; x < output.Width; ++x){var a = 0f;var r = 0f;var g = 0f;var b = 0f;for (int ky = 0; ky < 5; ++ky){var iy = y + ky - 2;if ((iy < 0) || (iy >= source.Height)){continue;}for (int kx = 0; kx < 5; ++kx){var ix = x + kx - 2;if ((ix < 0) || (ix >= source.Width)){continue;}var c = source.GetPixel(ix, iy);a += c.A;r += c.R;g += c.G;b += c.B;}}output.SetPixel(x, y, Color.FromArgb((byte)(a / 25), (byte)(r / 25), (byte)(g / 25), (byte)(b / 25)));}}return output;}private void button2_Click(object sender, EventArgs e){if (pictureBox1.Image == null){textBox1.Text = "请先选择图片";return;}button2.Enabled = false;pictureBox2.Image = null;textBox1.Text = "";Task task = new Task(() =>{dt1 = DateTime.Now;System.Threading.Thread.Sleep(2000);__Output = DeOldify.Colorize(__Input);//if (__Output.Height > __Output.Width)//{//    __NormalOutput = new Bitmap(__Output, (int)(256f / __Output.Height * __Output.Width), 256);//}//else//{//    __NormalOutput = new Bitmap(__Output, 256, (int)(256f / __Output.Width * __Output.Height));//}//__BlurryOutput = __Blurify(__NormalOutput);//__Output = __NormalOutput;pictureBox2.Image = __Output;dt2 = DateTime.Now;textBox1.Invoke(new Action(() =>{TimeSpan ts = dt2.Subtract(dt1);textBox1.Text = "耗时:" + ts.TotalSeconds + "s";}));button2.Invoke(new Action(() =>{button2.Enabled = true;}));//GC.Collect();});task.Start();}private void Form1_Load(object sender, EventArgs e){startupPath = System.Windows.Forms.Application.StartupPath;model = "Artistic.hmodel";//Artistic model with half-precision floating point weights. Less accurate than original float32 model, but requires 2 times less disk space.//Artistic.hmodel//Artistic model with single-precision floating point weights. More accurate than compressed float16 model.//Artistic.model//Stable model with single-precision floating point weights. Less accurate than original float32 model, but requires 2 times less disk space.//Stable.hmodel//Stable model with single-precision floating point weights. More accurate than compressed float16 model.//Stable.model";try{DeOldify.Initialize(model);textBox1.Text = "模型["+ model + "]初始化成功";DeOldify.Progress += (float Percent) =>{textBox1.Invoke(new Action(() =>{textBox1.Text = string.Format("完成进度：{0}%，请稍等……", Percent.ToString("f2"));}));};}catch (Exception ex){textBox1.Text = "模型初始化失败，异常信息：" + ex.Message;}}private void button3_Click(object sender, EventArgs e){if (pictureBox2.Image == null){return;}var SFD = new SaveFileDialog();SFD.Title = "保存";SFD.Filter = "Images (*.bmp)|*.bmp|Images (*.emf)|*.emf|Images (*.exif)|*.exif|Images (*.gif)|*.gif|Images (*.ico)|*.ico|Images (*.jpg)|*.jpg|Images (*.png)|*.png|Images (*.tiff)|*.tiff|Images (*.wmf)|*.wmf";if (SFD.ShowDialog() == DialogResult.OK){switch (SFD.FilterIndex){case 1:{__Output.Save(SFD.FileName, ImageFormat.Bmp);break;}case 2:{__Output.Save(SFD.FileName, ImageFormat.Emf);break;}case 3:{__Output.Save(SFD.FileName, ImageFormat.Exif);break;}case 4:{__Output.Save(SFD.FileName, ImageFormat.Gif);break;}case 5:{__Output.Save(SFD.FileName, ImageFormat.Icon);break;}case 6:{__Output.Save(SFD.FileName, ImageFormat.Jpeg);break;}case 7:{__Output.Save(SFD.FileName, ImageFormat.Png);break;}case 8:{__Output.Save(SFD.FileName, ImageFormat.Tiff);break;}case 9:{__Output.Save(SFD.FileName, ImageFormat.Wmf);break;}}MessageBox.Show("保存成功，位置："+SFD.FileName);}}}
}

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