C# 证件照替换底色与设置背景图---PaddleSegSharp

PaddleSegSharp 是一个基于百度飞桨PaddleSeg项目的人像分割模块而开发的.NET的工具类库。

PaddleSegSharp 中PaddleSeg.dll文件是基于开源项目最新发布版本PaddleSeg PaddleSeg的版本修改而成的C++动态库，基于opencv的x64编译而成的。

PaddleSeg是基于飞桨PaddlePaddle的端到端图像分割套件，内置45+模型算法及140+预训练模型，支持配置化驱动和API调用开发方式，打通数据标注、模型开发、训练、压缩、部署的全流程，提供语义分割、交互式分割、Matting、全景分割四大分割能力，助力算法在医疗、工业、遥感、娱乐等场景落地应用。

本项目只能在X64的CPU上编译和使用，只能在avx指令集上的CPU上使用，目前仅支持windows平台。

PaddleSegSharp 支持飞桨人像抠图的所有模型。PP-MattingV2-512、PP-Matting-512、PP-Matting-1024、PP-HumanMatting、MODNet-MobileNetV2。 默认使用MODNet-MobileNetV2模型。

1、新建winform项目

2、添加引用PaddleSegSharp ，使用NuGet 搜索添加PaddleSegSharp 

3、窗体上添加图片显示控件以及按钮

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.IO;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using PaddleSegSharp;namespace WindowsFormzhengjian
{public partial class Form1 : Form{#region 字段private string[] bmpFilters = new string[] { ".bmp", ".jpg", ".jpeg", ".tiff", ".tif", ".png" };private string fileFilter = "*.*|*.bmp;*.jpg;*.jpeg;*.tiff;*.tiff;*.png";private PaddleSegMattingEngine engine;MattingParameter parameter;string modelPath = null;string path = Environment.CurrentDirectory + @"\out\";/// <summary>/// 创建画布的画板背景/// </summary>Bitmap backgroundImage = null;#endregionpublic Form1(){InitializeComponent();}private void Form1_Load(object sender, EventArgs e){//初始化 引擎engine = new PaddleSegMattingEngine();//参数parameter = new MattingParameter();//parameter.outbgfile = true;//输出mask图//parameter.bgtransparent = true;//背景透明engine.Init(modelPath, parameter);if (!Directory.Exists(path)){Directory.CreateDirectory(path);}}/// <summary>/// 选择图片/// </summary>/// <param name="sender"></param>/// <param name="e"></param>private void btnSelectPic_Click(object sender, EventArgs e){OpenFileDialog ofd = new OpenFileDialog();ofd.Filter = fileFilter;if (ofd.ShowDialog() == DialogResult.OK){//pictureBox1.Image = new Bitmap(ofd.FileName);using (FileStream ms = File.OpenRead(ofd.FileName)){//解决内存异常问题，以及this.pbx.BackgroundImage = System.Drawing.Image.FromStream(ms)导致的一般性gdi+ 问题using (Bitmap bt = new Bitmap(ms)){#region MyRegion//backgroundImage = new Bitmap(bt.Width, bt.Height);Graphics g = pbx.CreateGraphics();//Graphics g = Graphics.FromImage(backgroundImage);g.DrawLine(Pens.Black, startPoint, e.Location);g.Clear(Color.White);Pen myPen = new Pen(Color.Black, int.TryParse(ConfigurationManager.AppSettings["penwidth"], out int penwidth) ? penwidth : 3);//g.SmoothingMode = SmoothingMode.AntiAlias;//g.CompositingQuality = CompositingQuality.HighQuality;//g.CompositingMode = CompositingMode.SourceOver;//g.DrawImage(bt, bt.Width, bt.Height);PointF pointFstart = PointToPointF(startPoint);PointF pointFend = PointToPointF(e.Location);g.DrawBeziers(myPen, new PointF[] { pointFstart, pointFend });//pbx.BackgroundImage = backgroundImage;//g.Dispose();bt.Save("Fingerprint.jpg");this.pbx.BackgroundImage = System.Drawing.Image.FromStream(ms); #endregionbackgroundImage = new Bitmap(bt.Width, bt.Height, bt.PixelFormat);Graphics g = Graphics.FromImage(backgroundImage);g.SmoothingMode = SmoothingMode.AntiAlias;g.CompositingQuality = CompositingQuality.HighQuality;g.CompositingMode = CompositingMode.SourceOver;g.DrawImage(bt, 0, 0);backgroundImage.Save("Fingerprint11.jpg");//pictureBox1.Image = Image.FromHbitmap(backgroundImage.GetHbitmap());pictureBox1.Image = backgroundImage;g.Dispose();pictureBox1.Refresh();}}#region ok参数//MattingParameter parameter = new MattingParameter();初始化引擎//PaddleSegMattingEngine engine = new PaddleSegMattingEngine();//engine.Init(modelPath, parameter);设置背景颜色//engine.Setbackground(45, 145, 255);分割后的文件//string outfile = Guid.NewGuid().ToString() + ".png";//string outbgfile = Path.GetFileNameWithoutExtension(outfile) + "_bg.png";//engine.Seg(ofd.FileName, outfile, outbgfile); #endregion}this.Refresh();}/// <summary>/// 替换背景色/// </summary>/// <param name="sender"></param>/// <param name="e"></param>private void btnReplaceBackground_Click(object sender, EventArgs e){if (pictureBox1.Image != null){参数ok//MattingParameter parameter = new MattingParameter();初始化引擎//PaddleSegMattingEngine engine = new PaddleSegMattingEngine();//engine.Init(modelPath, parameter);设置背景颜色//Color bgcolor = Color.White;//ColorDialog colorDialog = new ColorDialog();//colorDialog.Color = bgcolor;//if (colorDialog.ShowDialog() != DialogResult.OK) return;//bgcolor = colorDialog.Color;//engine.Setbackground(bgcolor.R, bgcolor.G, bgcolor.B);engine.Setbackground(45, 145, 255);分割后的文件//string outfile = Guid.NewGuid().ToString() + ".png";//string outbgfile = Path.GetFileNameWithoutExtension(outfile) + "_bg.png";engine.Seg("小一寸.png", outfile, outbgfile);engine.Seg(new Bitmap("小一寸.png"), outfile, outbgfile);//engine.Seg(pictureBox1.Image, outfile, outbgfile);engine = new PaddleSegMattingEngine();engine.Init(modelPath, parameter);Color bgcolor = Color.White;ColorDialog colorDialog = new ColorDialog();colorDialog.Color = bgcolor;if (colorDialog.ShowDialog() != DialogResult.OK) return;bgcolor = colorDialog.Color;engine.Setbackground(bgcolor.R, bgcolor.G, bgcolor.B);//engine.SetbackgroundFile("");string outfile = path + Guid.NewGuid().ToString() + ".png";string outbgfile = path + Path.GetFileNameWithoutExtension(outfile) + "_bg.png";engine.Seg(pictureBox1.Image, outfile, outbgfile);//engine.Setbackground(45, 145, 255);分割后的文件//string outfile = "C:\\" + Guid.NewGuid().ToString() + ".bmp";//engine.Seg("C:\\Users\\Administrator\\Desktop\\1.jpg", outfile, "mask图路径");pictureBox2.Image = new Bitmap(outfile);}}/// <summary>/// 替换背景图/// </summary>/// <param name="sender"></param>/// <param name="e"></param>private void btnSetBackground_Click(object sender, EventArgs e){if (pictureBox1.Image != null){engine = new PaddleSegMattingEngine();engine.Init(modelPath, parameter);OpenFileDialog ofd = new OpenFileDialog();ofd.Filter = fileFilter;if (ofd.ShowDialog() != DialogResult.OK)return;engine.SetbackgroundFile(ofd.FileName);string outfile = path + Guid.NewGuid().ToString() + ".png";string outbgfile = path + Path.GetFileNameWithoutExtension(outfile) + "_bg.png";//string outfile = path + "1.png";//string outbgfile = path + "1_bg.png";engine.Seg(pictureBox1.Image, outfile, outbgfile);pictureBox2.Image = new Bitmap(outfile);}}private void btnSave_Click(object sender, EventArgs e){if (pictureBox2.Image != null){SaveFileDialog fileDialog = new SaveFileDialog();fileDialog.Filter = "Image files (JPeg, Gif, Bmp, etc.)|*.jpg;*.jpeg;*.gif;*.bmp;*.tif; *.tiff; *.png|" +"JPeg files (*.jpg;*.jpeg)|*.jpg;*.jpeg |GIF files (*.gif)|*.gif |BMP files (*.b" +"mp)|*.bmp|Tiff files (*.tif;*.tiff)|*.tif;*.tiff|Png files (*.png)| *.png |All f" +"iles (*.*)|*.*";if ((fileDialog.ShowDialog() == System.Windows.Forms.DialogResult.OK)){string path = fileDialog.FileName.ToString();pictureBox2.Image.Save(path);}}}private void btnOCR_Click(object sender, EventArgs e){//OpenFileDialog ofd = new OpenFileDialog();//ofd.Filter = "*.*|*.bmp;*.jpg;*.jpeg;*.tiff;*.tiff;*.png";//if (ofd.ShowDialog() != DialogResult.OK)//    return;//var imagebyte = File.ReadAllBytes(ofd.FileName);//Bitmap bitmap = new Bitmap(new MemoryStream(imagebyte));//OCRModelConfig config = null;//OCRParameter oCRParameter = new OCRParameter();//OCRResult ocrResult = new OCRResult();//using (PaddleOCREngineengine = new PaddleOCREngine(config, oCRParameter))//{//    ocrResult = engine.DetectText(bitmap);//}//if (ocrResult != null)//{//    MessageBox.Show(ocrResult.Text, "识别结果");//}}}
}