Simple GDI + processing image size (C # code)

/// <Summary>
/// Scale the image
/// </Summary>
/// <Param name = "IMG"> original image </param>
/// <Param name = "xwith"> zoom in/out ratio. The image size is smaller than 100. </param>
/// <Param name = "yheight"> proportional scaling </param>
/// <Returns> return the processed image </returns>
Public Image scaleimg (system. Drawing. Image IMG, int xwith, int yheight)
{
// Calculate the image width after processing
Int I = convert. toint32 (IMG. Width * xwith/100 );
// The Image Height after computing and Processing
Int J = convert. toint32 (IMG. Height * yheight/100 );
// Format the image
System. Drawing. Image imgscale = new system. Drawing. Bitmap (I, j, system. Drawing. imaging. pixelformat. format24bpprgb );
System. Drawing. Graphics G = system. Drawing. Graphics. fromimage (imgscale );
System. Drawing. Rectangle srcrect = new system. Drawing. rectangle (0, 0, IMG. Width, IMG. Height );
System. Drawing. Rectangle desrect = new system. Drawing. rectangle (0, 0, imgscale. Width, imgscale. Height );
G. Clear (system. Drawing. color. White );
G. drawimage (IMG, desrect, srcrect, system. Drawing. graphicsunit. pixel );
// Save the processed image as another one
Imgscale. Save ("E: \ 1111.jpg", system. Drawing. imaging. imageformat. GIF );
G. Dispose ();
Return imgscale;
}