public void Redraw( )
{
var img = input.Get2DImageFrom4DArray(0, 0);
Bitmap bmp = new Bitmap(pictureBox1.Width, pictureBox1.Height);
var gr = Graphics.FromImage(bmp);
gr.Clear(Color.White);
int ww = int.Parse(textBox1.Text);
for (int i = 0; i < img.Shape[0]; i++)
{
for (int j = 0; j < img.Shape[1]; j++)
{
gr.DrawRectangle(Pens.Black, j * ww, i * ww, ww, ww);
gr.DrawString(Math.Round(img.Get2D(i, j), 3) + "", new Font("Consolas", 10), Brushes.Black, j * ww, i * ww);
}
}
pictureBox1.Image = bmp;
MaxPool2d pool = new MaxPool2d(2, 2);
var res = pool.Forward(input);
var img2 = res.Get2DImageFrom4DArray(0, 0);
Bitmap bmp2 = new Bitmap(pictureBox2.Width, pictureBox2.Height);
var gr2 = Graphics.FromImage(bmp2);
gr2.Clear(Color.White);
for (int i = 0; i < img2.Shape[0]; i++)
{
for (int j = 0; j < img2.Shape[1]; j++)
{
gr2.DrawRectangle(Pens.Black, j * ww, i * ww, ww, ww);
gr2.DrawString(Math.Round(img2.Get2D(i, j), 3) + "", new Font("Consolas", 10), Brushes.Black, j * ww, i * ww);
}
}
pictureBox2.Image = bmp2;
}
/// <summary>
/// stride=1, kernel=1,padding=0
/// </summary>
/// <param name="ar"></param>
/// <param name="hout"></param>
/// <param name="wout"></param>
/// <param name="c"></param>
/// <param name="hin"></param>
/// <param name="win"></param>
/// <returns></returns>
public InternalArray ProcessImageOptimizedNoPaddingKernel1(InternalArray ar, int hout, int wout, int c, int hin, int win)
{
InternalArray ret = new InternalArray(new int[] { outChannels, hout, wout });
InternalArray[,] filters = new InternalArray[outChannels, c];
for (int ch = 0; ch < outChannels; ch++)
{
for (int zz = 0; zz < c; zz++)
{
var kernel = Weight.Get2DImageFrom4DArray(ch, zz);
filters[ch, zz] = kernel;
}
}
Parallel.For(0, hout, (i) =>
{
for (int j = 0; j < wout; j++)
{
var index2 = i * ret.offsets[1] + j;
for (int ch = 0; ch < outChannels; ch++)
{
float val = 0;
var index = i * ar.offsets[1] + j;
for (int zz = 0; zz < c; zz++)
{
var kernel = filters[ch, zz];
val += kernel.Data[0] * ar.Data[index];
index += ar.offsets[0];
}
//ret.Data[ch * ret.offsets[0] + i * ret.offsets[1] + j] = val;
ret.Data[index2] = val;
index2 += ret.offsets[0];
}
}
});
return(ret);
}
