private void transform_Click(object sender, RoutedEventArgs e)
{
Bitmap img = new Bitmap(System.Drawing.Image.FromFile(openFile.FileName));
image.ToMainColors(img);
imgview.Source = image.Convert(img);
}
public void ConvertTests()
{
// Arrange
var img = new ImgViewModel();
Bitmap image = new Bitmap(@"zielone.jpg");
var expected = typeof(BitmapImage);
// Act
var actual = img.Convert(image);
//Assert
Assert.IsType(expected, actual);
}