public void GenerateBitmap(int imageSize)
{
this.Bitmap = DrawStrokes(this.Strokes, imageSize, imageSize, this.InkCanvasSize.Width, this.InkCanvasSize.Height);
this.BitmapColors = UtilityWPF.ConvertToColorArray(this.Bitmap, true, Colors.Transparent);
this.NNInput = this.BitmapColors.GetColors(0, 0, imageSize, imageSize).
Select(o => (o.A / 255d) * (255d - Math1D.Avg(o.R, o.G, o.B)) / 255d). // 0 should be 1d, 255 should be 0d
ToArray();
}
/// <summary>
/// Converts the original image into a grayscale
/// </summary>
private Convolution2D GetOriginalImageGrays()
{
if (originalImage.Source == null)
{
return(null);
}
int?limit = null;
int limitInt;
if (chkLimitImageSize.IsChecked.Value && int.TryParse(txtSizeLimit.Text, out limitInt))
{
limit = limitInt;
}
bool shouldBuild = false;
if (_origImageGrays == null)
{
shouldBuild = true;
}
else if (limit != null && (_origImageGrays.Width > limit.Value || _origImageGrays.Height > limit.Value))
{
// The current one is the wrong size
shouldBuild = true;
}
if (shouldBuild)
{
BitmapSource bitmap = (BitmapSource)originalImage.Source;
BitmapCustomCachedBytes colors = null;
if (limit != null)
{
bitmap = UtilityWPF.ResizeImage(bitmap, limit.Value); // this will only resize if it's too big
}
colors = (BitmapCustomCachedBytes)UtilityWPF.ConvertToColorArray(bitmap, false, Colors.Transparent);
_origImageGrays = colors.ToConvolution();
}
return(_origImageGrays);
}