public static Image ResizeBitmap(Image sourceBMP, int width, int height)
{
ResamplingService resamplingService = new ResamplingService();
resamplingService.Filter = ResamplingFilters.Box;
ushort[][,] input = ConvertBitmapToArray((Bitmap)sourceBMP);
ushort[][,] output = resamplingService.Resample(input, width, height);
Image imgCustom = (Image)ConvertArrayToBitmap(output);
return imgCustom;
}
public MainForm()
{
//
// load and show original image
//
Image imgInput = Image.FromFile(FILE_INPUT);
Image imgCheckerboard = Image.FromFile(FILE_CHECKERBOARD);
PictureBox pb1 = new PictureBox();
pb1.BackgroundImage = imgCheckerboard;
pb1.Image = imgInput;
pb1.Location = new Point(0, 0);
pb1.Parent = this;
pb1.Size = imgInput.Size;
//
// new image size
//
Size nSize = new Size(imgInput.Width * 4, imgInput.Height * 4);
//
// resample using GDI+
//
Image imgGdi = new Bitmap(nSize.Width, nSize.Height);
Graphics grfx = Graphics.FromImage(imgGdi);
grfx.InterpolationMode = InterpolationMode.HighQualityBicubic;
// necessary setting for proper work with image borders
grfx.PixelOffsetMode = PixelOffsetMode.HighQuality;
grfx.DrawImage(imgInput,
new Rectangle(new Point(0, 0), nSize), new Rectangle(new Point(0, 0), imgInput.Size),
GraphicsUnit.Pixel);
grfx.Dispose();
PictureBox pb2 = new PictureBox();
pb2.BackgroundImage = imgCheckerboard;
pb2.Image = imgGdi;
pb2.Location = new Point(imgInput.Width + SPACING, 0);
pb2.Parent = this;
pb2.Size = imgGdi.Size;
//
// resample using ResamplingService
//
ResamplingService resamplingService = new ResamplingService();
resamplingService.Filter = ResamplingFilters.CubicBSpline;
ushort[][,] input = ConvertBitmapToArray((Bitmap)imgInput);
ushort[][,] output = resamplingService.Resample(input, nSize.Width, nSize.Height);
Image imgCustom = (Image)ConvertArrayToBitmap(output);
PictureBox pb3 = new PictureBox();
pb3.BackgroundImage = imgCheckerboard;
pb3.Image = imgCustom;
pb3.Location = new Point(imgInput.Width + SPACING + imgGdi.Width + SPACING, 0);
pb3.Parent = this;
pb3.Size = nSize;
//
// set main form properties
//
this.ClientSize = new Size(
pb1.Width + SPACING + pb2.Width + SPACING + pb3.Width,
Math.Max(pb1.Height, pb2.Height));
this.Text = "Resampling Test";
}