private void RenderResult(string imageFilePath, YoloResponse parsedResponse)
{
var topObjectsFound = parsedResponse.GetTopObjectsDetected(20);
Image image = Image.FromFile(imageFilePath);
var builder = new StringBuilder();
var random = new Random();
using (Graphics g = Graphics.FromImage(image))
{
topObjectsFound
.ForEach(a =>
{
Color customColor = Color.FromArgb(random.Next(255), random.Next(255), random.Next(255));
var pen = new Pen(customColor, 2);
var x = a.X - a.Width / 2;
var y = a.Y - a.Height / 2;
builder.AppendLine($"{a.ObjectLabel} with confidence {a.Confidence:p}. Position : x = {a.X}, y = {a.Y}");
g.DrawRectangle(pen, x, y, a.Width, a.Height);
var brush = new SolidBrush(Color.Yellow);
var font = new Font(FontFamily.GenericSansSerif, 12, FontStyle.Bold);
g.DrawString(a.ObjectLabel, font, brush, x, y - 20);
g.DrawString("X", font, new SolidBrush(customColor), a.X, a.Y);
});
txtResults.Text = builder.ToString();
pictureBox.Image = image;
}
}
private void btnLoad_Click(object sender, EventArgs e)
{
var url = txtImageUrl.Text;
var imageFilePath = Path.GetTempFileName();
DownloadImage(url, imageFilePath);
ResizeImage(imageFilePath);
using (var bitmap = new Bitmap(imageFilePath))
{
var model = new Model();
var data = ExtractCHW(bitmap);
var result = model.Evaluate(new List <List <float> > {
data
})
.ToList()[0]
.ToList();
var parsedResponse = new YoloResponse(result);
RenderResult(imageFilePath, parsedResponse);
}
}
