/// <summary>
/// use c# to do preprocess, the result will a little different from others
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void classifyPreBtn_Click(object sender, EventArgs e)
{
if (!netInited)
{
MessageBox.Show("Network is not inited");
return;
}
if (pictureBox1.Image == null)
{
MessageBox.Show("there is no pic in picBox!");
return;
}
MsnhnetDef.Dim dim = net.GetInputDim();
Bitmap bitmap = (Bitmap)pictureBox1.Image;//image转bitmap
Bitmap outBitmap;
ImgPro.ReSize(bitmap, dim.width, dim.height, out outBitmap, true);// a little different from opencv
bitmap = ImgPro.ConvertTo24bpp(outBitmap);
Rectangle rect = new Rectangle(0, 0, bitmap.Width, bitmap.Height);
BitmapData bmpData = bitmap.LockBits(rect, ImageLockMode.ReadWrite, bitmap.PixelFormat);
float[] inputData = new float[3 * bmpData.Width * bmpData.Height];
unsafe
{
byte *ptr = (byte *)(bmpData.Scan0);
for (int i = 0; i < bmpData.Height; i++)
{
for (int k = 0; k < 3; ++k)
{
for (int j = 0; j < bmpData.Width; j++)
{
inputData[(k * bmpData.Width * bmpData.Height + i * bmpData.Width + j)] = ptr[i * 3 * bmpData.Width + j * 3 + k] / 255.0f;
}
}
}
}
bitmap.UnlockBits(bmpData);
int best = net.RunClassifyNoPred(inputData, false);
string[] labelList = labels.Split('\n');
// actually time need to add preprocess time , you can do it by your self
float time = net.GetCpuForwardTime();
richTextBox1.AppendText("CPU inference time:" + time.ToString() + " ms\n");
richTextBox1.AppendText("CPU inferece result: " + labelList[best] + "\n");
}
private void resetImgBtn_Click(object sender, EventArgs e)
{
try
{
pictureBox1.Image = Image.FromFile(savedImagePath);
pictureBox1.Image = ImgPro.ConvertTo24bpp(pictureBox1.Image);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
private void readImgBtn_Click(object sender, EventArgs e)
{
OpenFileDialog of = new OpenFileDialog();
of.Filter = picOpenFilter;
if (of.ShowDialog() == DialogResult.OK)
{
string temp = of.FileName;
savedImagePath = temp;
resetImgBtn.Enabled = true;
try
{
pictureBox1.Image = Image.FromFile(temp);
pictureBox1.Image = ImgPro.ConvertTo24bpp(pictureBox1.Image);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
}