Files
HawkeyeVision/Hawkeye.VisionBuilder.Workflow/Operations/AI/OnnxModelOperation.cs
2025-09-16 10:42:43 +02:00

135 lines
4.2 KiB
C#

using Hawkeye.VisionBuilder.Workflow.Datatypes;
using Hawkeye.VisionBuilder.Workflow.Operations.Attributes;
using ILGPU.Runtime.Cuda;
using Microsoft.ML.OnnxRuntime;
using Microsoft.ML.OnnxRuntime.Tensors;
using Microsoft.Scripting.Runtime;
using OpenCvSharp;
namespace Hawkeye.VisionBuilder.Workflow.Operations.AI;
[Category("AI")]
public class OnnxModelOperation:BaseOperation
{
private FilePath _modelFilePath = new FilePath(){Format = "ONNX file(*.onnx)|*.onnx" };
public FilePath ModelFilePath
{
get => _modelFilePath;
set
{
_modelFilePath = value;
_initialized = false;
}
}
private bool _initialized = false;
private InferenceSession _AIsession;
private string _inputName;
private int[] _dimensions;
protected override void InterpretInternal(Context context)
{
if (!CheckImageExists(context)) return;
if (!CheckColorful(context)) return;
if (!_initialized)
{
if (!File.Exists(ModelFilePath?.Path))
{
this.SetError($"Model file \"{ModelFilePath?.Path}\" not found");
return;
}
var opts = new SessionOptions();
_AIsession = new InferenceSession(ModelFilePath?.Path, opts);
_inputName = _AIsession.InputMetadata.First().Key;
_dimensions = _AIsession.InputMetadata.First().Value.Dimensions;
foreach (var input in _AIsession.InputMetadata)
{
Console.WriteLine($"Name: {input.Key}");
Console.WriteLine($" Type: {input.Value.ElementType}");
Console.WriteLine($" Shape: [{string.Join(", ", input.Value.Dimensions)}]");
}
_initialized = true;
}
var currentImage = context.ActiveImage;
var rightColor = currentImage.ImageData.CvtColor(ColorConversionCodes.BGR2RGB);
// convert to float32
var floatImage = new Mat();
rightColor.ConvertTo(floatImage, MatType.CV_32FC3, 1.0 / 255);
// to array
var width = _dimensions[1];
var height = _dimensions[2];
// check if need resize
if (floatImage.Width != width || floatImage.Height != height)
Cv2.Resize(floatImage, floatImage, new OpenCvSharp.Size(width, height));
float[] data = new float[3 * width * height];
int idx = 0;
var rows = floatImage.Rows;
var cols = floatImage.Cols;
for (int y = 0; y < rows; y++)
{
for (int x = 0; x < cols; x++)
{
Vec3f pixel = floatImage.At<Vec3f>(y, x);
for (int c = 0; c < 3; c++) // channels
{
data[idx++] = pixel[c]; // width*height*channel
}
}
}
var inputTensor = new DenseTensor<float>(
data,
new int[] { 1, floatImage.Width, floatImage.Height, 3 }
);
var inputs = new List<NamedOnnxValue> {
NamedOnnxValue.CreateFromTensor("input", inputTensor)
};
var sw = System.Diagnostics.Stopwatch.StartNew();
using var results = _AIsession.Run(inputs);
sw.Stop();
Console.WriteLine($"Inference time: {sw.ElapsedMilliseconds} ms");
var output = results.First().AsEnumerable<float>().ToArray();
// convert output to Mat and normalize to 0-255
var outputMat = new Mat(new OpenCvSharp.Size(width, height), MatType.CV_32FC1);
outputMat.SetArray<float>(output);
outputMat.ConvertTo(outputMat, MatType.CV_8UC1, 255);
// resize back to original size
Cv2.Resize(outputMat, outputMat, new OpenCvSharp.Size(currentImage.ImageData.Width, currentImage.ImageData.Height));
context.ActiveImage = new HawkeyeImage()
{
ImageData = outputMat
};
}
public override void Save(Dictionary<string, object> dict)
{
base.Save(dict);
dict[nameof(ModelFilePath)] = ModelFilePath?.Path;
}
public override void Load(Dictionary<string, object> dict)
{
base.Load(dict);
if (dict.ContainsKey(nameof(ModelFilePath)))
ModelFilePath.Path = dict[nameof(ModelFilePath)].ToString();
}
}