部分处理代码:   VB.NET code   ……   Dim ts2 As IThresholder = New GlobalMeanThreshold(inbmp)   Dim tsBMP As New Bitmap(PictureBox1.Width, PictureBox1.Height)   ts2.RenderToBitmap(tsBMP)   PictureBox6.Image = tsBMP   PictureBox6.Height = PictureBox1.Height   PictureBox6.Width = PictureBox1.Width   PictureBox6.Left = 0   PictureBox6.Top = 0   ……