目录
介绍
效果
模型信息
项目
代码
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C# RAM Stable Diffusion 提示词反推 Onnx Demo
介绍
github地址：GitHub - xinyu1205/recognize-anything: Open-source and strong foundation image recognition models.
Open-source and strong foundation image recognition models.
效果
模型信息
Model Properties
-------------------------
---------------------------------------------------------------
Inputs
-------------------------
name：input
tensor：Float[1, 3, 384, 384]
---------------------------------------------------------------
Outputs
-------------------------
name：output
tensor：Float[1, 4585]
---------------------------------------------------------------
项目
代码
using Microsoft.ML.OnnxRuntime;
using Microsoft.ML.OnnxRuntime.Tensors;
using OpenCvSharp;
using System;
using System.Collections.Generic;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Windows.Forms;
namespace Onnx_Demo
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
string fileFilter = "*.*|*.bmp;*.jpg;*.jpeg;*.tiff;*.tiff;*.png";
string image_path = "";
DateTime dt1 = DateTime.Now;
DateTime dt2 = DateTime.Now;
string model_path;
Mat image;
SessionOptions options;
InferenceSession onnx_session;
Tensor<float> input_tensor;
List<NamedOnnxValue> input_container;
IDisposableReadOnlyCollection<DisposableNamedOnnxValue> result_infer;
DisposableNamedOnnxValue[] results_onnxvalue;
Tensor<float> result_tensors;
StringBuilder sbTags = new StringBuilder();
StringBuilder sbTagsCN = new StringBuilder();
StringBuilder sb = new StringBuilder();
public string[] class_names;
List<Tag> ltTag = new List<Tag>();
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;
pictureBox1.Image = new Bitmap(image_path);
textBox1.Text = "";
image = new Mat(image_path);
}
float[] mean = { 0.485f, 0.456f, 0.406f };
float[] std = { 0.229f, 0.224f, 0.225f };
public void Normalize(Mat src)
{
src.ConvertTo(src, MatType.CV_32FC3, 1.0 / 255);
Mat[] bgr = src.Split();
for (int i = 0; i < bgr.Length; ++i)
{
bgr[i].ConvertTo(bgr[i], MatType.CV_32FC1, 1 / std[i], (0.0 - mean[i]) / std[i]);
}
Cv2.Merge(bgr, src);
foreach (Mat channel in bgr)
{
channel.Dispose();
}
}
public float[] ExtractMat(Mat src)
{
OpenCvSharp.Size size = src.Size();
int channels = src.Channels();
float[] result = new float[size.Width * size.Height * channels];
GCHandle resultHandle = default;
try
{
resultHandle = GCHandle.Alloc(result, GCHandleType.Pinned);
IntPtr resultPtr = resultHandle.AddrOfPinnedObject();
for (int i = 0; i < channels; ++i)
{
Mat cmat = new Mat(
src.Height, src.Width,
MatType.CV_32FC1,
resultPtr + i * size.Width * size.Height * sizeof(float));
Cv2.ExtractChannel(src, cmat, i);
cmat.Dispose();
}
}
finally
{
resultHandle.Free();
}
return result;
}
private void button2_Click(object sender, EventArgs e)
{
if (image_path == "")
{
return;
}
button2.Enabled = false;
textBox1.Text = "";
sb.Clear();
sbTagsCN.Clear();
sbTags.Clear();
Application.DoEvents();
image = new Mat(image_path);
//图片缩放
Mat resize_image = new Mat();
Cv2.Resize(image, resize_image, new OpenCvSharp.Size(384, 384));
Normalize(resize_image);
var data = ExtractMat(resize_image);
resize_image.Dispose();
image.Dispose();
// 输入Tensor
input_tensor = new DenseTensor<float>(data, new[] { 1, 3, 384, 384 });
//将 input_tensor 放入一个输入参数的容器，并指定名称
input_container.Add(NamedOnnxValue.CreateFromTensor("input", input_tensor));
dt1 = DateTime.Now;
//运行 Inference 并获取结果
result_infer = onnx_session.Run(input_container);
dt2 = DateTime.Now;
// 将输出结果转为DisposableNamedOnnxValue数组
results_onnxvalue = result_infer.ToArray();
// 读取第一个节点输出并转为Tensor数据
result_tensors = results_onnxvalue[0].AsTensor<float>();
var result_array = result_tensors.ToArray();
double[] scores = new double[result_array.Length];
for (int i = 0; i < result_array.Length; i++)
{
double score = 1 / (1 + Math.Exp(result_array[i] * -1));
scores[i] = score;
}
List<Tag> tags = new List<Tag>(ltTag);
List<Tag> topTags = new List<Tag>();
for (int i = 0; i < scores.Length; i++)
{
if (scores[i] > tags[i].Threshold)
{
tags[i].Score = scores[i];
topTags.Add(tags[i]);
}
}
topTags.OrderByDescending(x => x.Score).ToList();
foreach (var item in topTags)
{
sbTagsCN.Append(item.NameCN + ",");
sbTags.Append(item.Name + ",");
}
sbTagsCN.Length--;
sbTags.Length--;
sb.AppendLine("Tags:" + sbTags.ToString());
sb.AppendLine("标签:" + sbTagsCN.ToString());
sb.AppendLine("------------------");
sb.AppendLine("推理耗时:" + (dt2 - dt1).TotalMilliseconds + "ms");
textBox1.Text = sb.ToString();
button2.Enabled = true;
}
private void Form1_Load(object sender, EventArgs e)
{
model_path = "model/ram.onnx";
// 创建输出会话，用于输出模型读取信息
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
onnx_session = new InferenceSession(model_path, options);//model_path 为onnx模型文件的路径
// 创建输入容器
input_container = new List<NamedOnnxValue>();
image_path = "test_img/1.jpg";
pictureBox1.Image = new Bitmap(image_path);
image = new Mat(image_path);
string[] thresholdLines = File.ReadAllLines("model/ram_tag_list_threshold.txt");
string[] tagChineseLines = File.ReadAllLines("model/ram_tag_list_chinese.txt");
string[] tagLines = File.ReadAllLines("model/ram_tag_list.txt");
for (int i = 0; i < tagLines.Length; i++)
{
ltTag.Add(new Tag { NameCN = tagChineseLines[i], Name = tagLines[i], Threshold = double.Parse(thresholdLines[i]) });
}
}
}
}
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