目录
效果
模型信息
项目
代码
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效果
图片源自网络侵删
模型信息
Inputs
-------------------------
name:x
tensor:Float[1, 3, 192, 192]
---------------------------------------------------------------
Outputs
-------------------------
name:tf.identity
tensor:Float[1, 192, 192, 2]
---------------------------------------------------------------
项目
VS2022
.net framework 4.8
OpenCvSharp 4.8
Microsoft.ML.OnnxRuntime 1.16.2
代码
using Microsoft.ML.OnnxRuntime.Tensors;
using Microsoft.ML.OnnxRuntime;
using OpenCvSharp;
using System;
using System.Collections.Generic;
using System.Windows.Forms;
using System.Linq;
using System.Drawing;
namespace Onnx_Demo
{
public partial class frmMain : Form
{
public frmMain()
{
InitializeComponent();
}
string fileFilter = "*.*|*.bmp;*.jpg;*.jpeg;*.tiff;*.tiff;*.png";
string image_path = "";
DateTime dt1 = DateTime.Now;
DateTime dt2 = DateTime.Now;
float conf_threshold = 0.9f;
int inpWidth;
int inpHeight;
int outHeight, outWidth;
Mat image;
string model_path = "";
SessionOptions options;
InferenceSession onnx_session;
Tensor<float> input_tensor;
List<NamedOnnxValue> input_ontainer;
IDisposableReadOnlyCollection<DisposableNamedOnnxValue> result_infer;
DisposableNamedOnnxValue[] results_onnxvalue;
private void button1_Click(object sender, EventArgs e)
{
OpenFileDialog ofd = new OpenFileDialog();
ofd.Filter = fileFilter;
if (ofd.ShowDialog() != DialogResult.OK) return;
pictureBox1.Image = null;
pictureBox2.Image = null;
textBox1.Text = "";
image_path = ofd.FileName;
pictureBox1.Image = new System.Drawing.Bitmap(image_path);
image = new Mat(image_path);
}
private void Form1_Load(object sender, EventArgs e)
{
// 创建输入容器
input_ontainer = new List<NamedOnnxValue>();
// 创建输出会话
options = new SessionOptions();
options.LogSeverityLevel = OrtLoggingLevel.ORT_LOGGING_LEVEL_INFO;
options.AppendExecutionProvider_CPU(0);// 设置为CPU上运行
// 创建推理模型类,读取本地模型文件
model_path = "model/model_float32.onnx";
inpHeight = 192;
inpWidth = 192;
outHeight = 192;
outWidth = 192;
onnx_session = new InferenceSession(model_path, options);
// 创建输入容器
input_ontainer = new List<NamedOnnxValue>();
image_path = "test_img/1.jpg";
pictureBox1.Image = new Bitmap(image_path);
}
private unsafe void button2_Click(object sender, EventArgs e)
{
if (image_path == "")
{
return;
}
textBox1.Text = "检测中,请稍等……";
pictureBox2.Image = null;
System.Windows.Forms.Application.DoEvents();
image = new Mat(image_path);
Mat resize_image = new Mat();
Cv2.Resize(image, resize_image, new OpenCvSharp.Size(inpWidth, inpHeight));
float[] input_tensor_data = new float[1 * 3 * inpWidth * inpHeight];
int row = resize_image.Rows;
int col = resize_image.Cols;
for (int c = 0; c < 3; c++)
{
for (int i = 0; i < inpHeight; i++)
{
for (int j = 0; j < inpWidth; j++)
{
byte pix = ((byte*)(resize_image.Ptr(i).ToPointer()))[j * 3 + c];
input_tensor_data[c * row * col + i * col + j] = (float)((pix / 255.0-0.5)/0.5);
}
}
}
input_tensor = new DenseTensor<float>(input_tensor_data, new[] { 1, 3, inpHeight, inpWidth });
//将 input_tensor 放入一个输入参数的容器,并指定名称
input_ontainer.Add(NamedOnnxValue.CreateFromTensor("x", input_tensor));
dt1 = DateTime.Now;
//运行 Inference 并获取结果
result_infer = onnx_session.Run(input_ontainer);
dt2 = DateTime.Now;
//将输出结果转为DisposableNamedOnnxValue数组
results_onnxvalue = result_infer.ToArray();
float[] mask = results_onnxvalue[0].AsTensor<float>().ToArray();
Mat mask_out = new Mat(outHeight, outWidth, MatType.CV_32FC2, mask);
Cv2.Resize(mask_out, mask_out, new OpenCvSharp.Size(image.Cols, image.Rows));
Mat result_image = image.Clone();
for (int h = 0; h < result_image.Rows; h++)
{
for (int w = 0; w < result_image.Cols; w++)
{
float pix = mask_out.At<float>(h, w);
if (pix > conf_threshold)
{
Vec3b vec3B = result_image.At<Vec3b>(h, w);
vec3B.Item0 = 0;
vec3B.Item1 = 255;
vec3B.Item2 = 0;
result_image.Set<Vec3b>(h, w, vec3B);
}
}
}
if (pictureBox2.Image != null)
{
pictureBox2.Image.Dispose();
}
pictureBox2.Image = new System.Drawing.Bitmap(result_image.ToMemoryStream());
textBox1.Text = "推理耗时:" + (dt2 - dt1).TotalMilliseconds + "ms";
mask_out.Dispose();
image.Dispose();
resize_image.Dispose();
result_image.Dispose();
}
private void pictureBox2_DoubleClick(object sender, EventArgs e)
{
Common.ShowNormalImg(pictureBox2.Image);
}
private void pictureBox1_DoubleClick(object sender, EventArgs e)
{
Common.ShowNormalImg(pictureBox1.Image);
}
}
}
using Microsoft.ML.OnnxRuntime.Tensors;
using Microsoft.ML.OnnxRuntime;
using OpenCvSharp;
using System;
using System.Collections.Generic;
using System.Windows.Forms;
using System.Linq;
using System.Drawing;namespace Onnx_Demo
{public partial class frmMain : Form{public frmMain(){InitializeComponent();}string fileFilter = "*.*|*.bmp;*.jpg;*.jpeg;*.tiff;*.tiff;*.png";string image_path = "";DateTime dt1 = DateTime.Now;DateTime dt2 = DateTime.Now;float conf_threshold = 0.9f;int inpWidth;int inpHeight;int outHeight, outWidth;Mat image;string model_path = "";SessionOptions options;InferenceSession onnx_session;Tensor<float> input_tensor;List<NamedOnnxValue> input_ontainer;IDisposableReadOnlyCollection<DisposableNamedOnnxValue> result_infer;DisposableNamedOnnxValue[] results_onnxvalue;private void button1_Click(object sender, EventArgs e){OpenFileDialog ofd = new OpenFileDialog();ofd.Filter = fileFilter;if (ofd.ShowDialog() != DialogResult.OK) return;pictureBox1.Image = null;pictureBox2.Image = null;textBox1.Text = "";image_path = ofd.FileName;pictureBox1.Image = new System.Drawing.Bitmap(image_path);image = new Mat(image_path);}private void Form1_Load(object sender, EventArgs e){// 创建输入容器input_ontainer = new List<NamedOnnxValue>();// 创建输出会话options = new SessionOptions();options.LogSeverityLevel = OrtLoggingLevel.ORT_LOGGING_LEVEL_INFO;options.AppendExecutionProvider_CPU(0);// 设置为CPU上运行// 创建推理模型类,读取本地模型文件model_path = "model/model_float32.onnx";inpHeight = 192;inpWidth = 192;outHeight = 192;outWidth = 192;onnx_session = new InferenceSession(model_path, options);// 创建输入容器input_ontainer = new List<NamedOnnxValue>();image_path = "test_img/1.jpg";pictureBox1.Image = new Bitmap(image_path);}private unsafe void button2_Click(object sender, EventArgs e){if (image_path == ""){return;}textBox1.Text = "检测中,请稍等……";pictureBox2.Image = null;System.Windows.Forms.Application.DoEvents();image = new Mat(image_path);Mat resize_image = new Mat();Cv2.Resize(image, resize_image, new OpenCvSharp.Size(inpWidth, inpHeight));float[] input_tensor_data = new float[1 * 3 * inpWidth * inpHeight];int row = resize_image.Rows;int col = resize_image.Cols;for (int c = 0; c < 3; c++){for (int i = 0; i < inpHeight; i++){for (int j = 0; j < inpWidth; j++){byte pix = ((byte*)(resize_image.Ptr(i).ToPointer()))[j * 3 + c];input_tensor_data[c * row * col + i * col + j] = (float)((pix / 255.0-0.5)/0.5);}}}input_tensor = new DenseTensor<float>(input_tensor_data, new[] { 1, 3, inpHeight, inpWidth });//将 input_tensor 放入一个输入参数的容器,并指定名称input_ontainer.Add(NamedOnnxValue.CreateFromTensor("x", input_tensor));dt1 = DateTime.Now;//运行 Inference 并获取结果result_infer = onnx_session.Run(input_ontainer);dt2 = DateTime.Now;//将输出结果转为DisposableNamedOnnxValue数组results_onnxvalue = result_infer.ToArray();float[] mask = results_onnxvalue[0].AsTensor<float>().ToArray();Mat mask_out = new Mat(outHeight, outWidth, MatType.CV_32FC2, mask);Cv2.Resize(mask_out, mask_out, new OpenCvSharp.Size(image.Cols, image.Rows));Mat result_image = image.Clone();for (int h = 0; h < result_image.Rows; h++){for (int w = 0; w < result_image.Cols; w++){float pix = mask_out.At<float>(h, w);if (pix > conf_threshold){Vec3b vec3B = result_image.At<Vec3b>(h, w);vec3B.Item0 = 0;vec3B.Item1 = 255;vec3B.Item2 = 0;result_image.Set<Vec3b>(h, w, vec3B);}}}if (pictureBox2.Image != null){pictureBox2.Image.Dispose();}pictureBox2.Image = new System.Drawing.Bitmap(result_image.ToMemoryStream());textBox1.Text = "推理耗时:" + (dt2 - dt1).TotalMilliseconds + "ms";mask_out.Dispose();image.Dispose();resize_image.Dispose();result_image.Dispose();}private void pictureBox2_DoubleClick(object sender, EventArgs e){Common.ShowNormalImg(pictureBox2.Image);}private void pictureBox1_DoubleClick(object sender, EventArgs e){Common.ShowNormalImg(pictureBox1.Image);}}
}
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