private Bitmap resizeBitmap(Bitmap b, ResizingMethod resizingMethod)
{
Bitmap resizedBmp = new Bitmap(inputSize[1], inputSize[0], PixelFormat.Format24bppRgb);
Graphics gr = Graphics.FromImage(resizedBmp);
if (resizingMethod == ResizingMethod.Stretch)
{
gr.DrawImage(b, 0, 0, inputSize[1], inputSize[0]);
}
else
{
float inputAspRatio = inputSize[0] / inputSize[1];
int newHeight, newWidth;
float multiplier = (float)b.Width / b.Height;
if (multiplier > inputAspRatio)
{
multiplier = inputAspRatio / multiplier;
newWidth = inputSize[1];
newHeight = (int)(newWidth * multiplier);
}
else
{
newHeight = inputSize[0];
newWidth = (int)(newHeight * multiplier);
}
gr.DrawImage(b, (inputSize[1] - newWidth) / 2.0f, (inputSize[0] - newHeight) / 2.0f, newWidth, newHeight);
}
gr.Dispose();
return(resizedBmp);
}
public void setInput(Bitmap input, ResizingMethod resizingMethod)
{
outputTensorMemAlloc();
Bitmap iBitmap = (Bitmap)input.Clone();
resizedInputBmp = resizeBitmap(iBitmap, resizingMethod);
iBitmap.Dispose();
}
