private void ShowYolo(YoloCoords yoloCoords)
{
MouseHelper.SetWaitCursor();
try
{
var img = _viewModel.CurrentBitmap;
if (img == null)
{
return;
}
if (yoloCoords.Height <= double.Epsilon || yoloCoords.Width <= double.Epsilon)
{
imgPreview.Source = null;
txtCoords.Text = "";
return;
}
// render how translating back from yolo coords will look
var rwidth = (int)(yoloCoords.Width * img.Width);
var rheight = (int)(yoloCoords.Height * img.Height);
var imgx = (int)(yoloCoords.X * img.Width - rwidth / 2.0);
var imgy = (int)(yoloCoords.Y * img.Height - rheight / 2.0);
if (imgy + rheight > img.Height)
{
rheight = img.Height - imgy;
}
if (imgx + rwidth > img.Width)
{
rwidth = img.Width - imgx;
}
var rect = new Rectangle(imgx, imgy, rwidth, rheight);
var newImg = img.Clone(rect, img.PixelFormat);
var hbitmap = newImg.GetHbitmap();
var bmpsource = Imaging.CreateBitmapSourceFromHBitmap(
hbitmap,
IntPtr.Zero,
Int32Rect.Empty,
BitmapSizeOptions.FromWidthAndHeight(rwidth, rheight)
);
BitmapCloner.DeleteObject(hbitmap);
newImg.Dispose();
txtCoords.Text = $"x: {imgx} y: {imgy} w: {rwidth}px h: {rheight}px";
imgPreview.Source = bmpsource;
}
finally
{
MouseHelper.ResetCursor();
}
}
public void CloneTest1()
{
BitmapCloner target = new BitmapCloner();
var width = 2;
var height = 2;
using (var bitmap = new Bitmap(width, height))
{
long distance = long.MaxValue;
var actual = target.Clone(bitmap, distance, 1);
Assert.IsTrue(actual.Vectors.Any());
}
}
public void CloneTest2()
{
BitmapCloner target = new BitmapCloner();
var width = 2;
var height = 2;
using (var bitmap = new Bitmap(width, height))
{
long expectedDistance = 0L;
var actual = target.Clone(bitmap, expectedDistance, 1);
var actualDistance = VectorDrawingGenetics.Instance.CalculateFitness(actual, bitmap);
Assert.IsTrue(actualDistance <= expectedDistance);
}
}
public void CloneTest3()
{
BitmapCloner target = new BitmapCloner();
var width = 2;
var height = 2;
using (var bitmap = new Bitmap(width, height))
{
using (var graphics = Graphics.FromImage(bitmap))
{
graphics.DrawLine(Pens.Orange, new Point(0, 0), new Point(1, 1));
}
long expectedDistance = 512;
var actual = target.Clone(bitmap, expectedDistance, 1);
var actualDistance = VectorDrawingGenetics.Instance.CalculateFitness(actual, bitmap);
Assert.IsTrue(actualDistance <= expectedDistance);
}
}
public void CloneTest5()
{
BitmapCloner target = new BitmapCloner();
var fileName = Path.Combine(testContextInstance.TestDeploymentDir, "smile.png");
using (var bitmap = new Bitmap(fileName))
{
long expectedDistance = 1024 * 32;
var stopwatch = Stopwatch.StartNew();
var actual = target.Clone(bitmap, expectedDistance, 2);
stopwatch.Stop();
var actualDistance = VectorDrawingGenetics.Instance.CalculateFitness(actual, bitmap);
Assert.IsTrue(actualDistance <= expectedDistance);
using (var cloneBitmap = new Bitmap(bitmap.Width, bitmap.Height))
{
using (var graphics = Graphics.FromImage(cloneBitmap))
{
GraphicsExtensions.RasterizeVectorDrawing(graphics, actual);
}
cloneBitmap.Save("smile.bmp", ImageFormat.Bmp);
}
}
}
public void BitmapClonerConstructorTest()
{
BitmapCloner target = new BitmapCloner();
}
