Object detection in docker

[horan74]

Hello there!
I have minimal API (.Net10) (Hier is the key method):

using SkiaSharp;
using YoloDotNet;
using YoloDotNet.Enums;
using YoloDotNet.Extensions;
using YoloDotNet.Models;
using System.Net.Mime;

namespace Object.Detection.API.Detection;

public class Detector
{
    public static byte[] Detect(
        IFormFile formFile,
        DetectionOptions detectOptions,
        DetectionDrawingOptions drawingOptions,
        string onnxModel)
    {
        using var yolo = new Yolo(GetYoloOptions(onnxModel));

        using var image = SKBitmap.Decode(formFile.OpenReadStream());

        var results = yolo.RunObjectDetection(image, detectOptions.Confidence, detectOptions.IoU);

        image.Draw(results, drawingOptions);
        var skEncodedImageFormat = MediaTypeNameToSKEncodedImageFormat(formFile.ContentType);
        image.Save("1.jpg");
        
        return image.Encode(skEncodedImageFormat, 100).ToArray();
    }

    private static YoloOptions GetYoloOptions(string onnxModel) => new()
    {
        OnnxModel = Path.Combine("OnnxModels", onnxModel),
        ImageResize = ImageResize.Proportional,
    };

    private static SKEncodedImageFormat MediaTypeNameToSKEncodedImageFormat(string mediaTypeName)
    {
        return mediaTypeName switch
        {
            MediaTypeNames.Image.Bmp => SKEncodedImageFormat.Bmp,
            MediaTypeNames.Image.Jpeg => SKEncodedImageFormat.Jpeg,
            MediaTypeNames.Image.Png => SKEncodedImageFormat.Png,
            _ => throw new Exception("Unknown image format!")
        };
    }
}

The detected image (if I start the project local) is:

If I start this project in a docker container the output is:

Why? Thanks in advance!

[runxc1]

Do you have a minimal reproduction with the Dockerfile?

[horan74]

Hier is:

FROM mcr.microsoft.com/dotnet/sdk:10.0 AS build
WORKDIR /src
COPY . .
RUN dotnet publish "Object.Detection.API.csproj" -c Release -o /published

FROM mcr.microsoft.com/dotnet/aspnet:10.0 AS runtime
WORKDIR /app
COPY --from=build /published .
ENTRYPOINT ["dotnet", "Object.Detection.API.dll"]