Bitmap bmp;
/// <summary>
/// 绘制图像
/// </summary>
/// <param name="g">Graphics</param>
/// <param name="Width">图像宽</param>
/// <param name="Height">图像高</param>
/// <param name="ScaleX">缩放X</param>
/// <param name="ScaleY">缩放Y</param>
public void DrawImage(Graphics g,Bitmap bitmap, int Width, int Height, float ScaleX = 1, float ScaleY = 1)
{
if (bitmap != null)
{
if (bmp == null)
{
bmp = new Bitmap(Width, Height);
}
g = Graphics.FromImage(bmp);
picturebox.BeginInvoke(new Action(() =>
{
this.picturebox.Image = bmp;
}));
g.DrawImage(bitmap, 0, 0, Width * ScaleX, Height * ScaleY);
}
}
C#使用GDI+同时绘制图像和ROI在picturebox上的相关教程结束。
