Delphi and C# (ActiveX) sample code.
You can resize the image or crop it the way you like. These operations are performed in real time and use almost no CPU.
Enable resizing or cropping.
VideoCapture1.Video_ResizeOrCrop_Enabled := true;
VideoCapture1.Video_ResizeOrCrop_Enabled = true;
VideoCapture1.Video_Resize_NewWidth := StrToInt(edResizeWidth.Text); VideoCapture1.Video_Resize_NewHeight := StrToInt(edResizeHeight.Text);
VideoCapture1.Video_Resize_NewWidth = Convert.ToInt32(edResizeWidth.Text); VideoCapture1.Video_Resize_NewHeight = Convert.ToInt32(edResizeHeight.Text);
The image aspect ratio change mode – letterbox (add black margins to the edges) or stretch.
VideoCapture1.Video_Resize_LetterBox := cbResizeLetterbox.Checked;
VideoCapture1.Video_Resize_LetterBox = cbResizeLetterbox.Checked;
case cbResizeMode.ItemIndex of 0: VideoCapture1.Video_Resize_Mode := rm_NearestNeighbor; 1: VideoCapture1.Video_Resize_Mode := rm_Bilinear; 2: VideoCapture1.Video_Resize_Mode := rm_Bilinear_HQ; 3: VideoCapture1.Video_Resize_Mode := rm_Bicubic; 4: VideoCapture1.Video_Resize_Mode := rm_Bicubic_HQ; end;
switch (cbResizeMode.SelectedIndex) { case 0: VideoCapture1.Video_Resize_Mode = VisioForge_Video_Capture_3.TxVFResizeMode.rm_NearestNeighbor; break; case 1: VideoCapture1.Video_Resize_Mode = VisioForge_Video_Capture_3.TxVFResizeMode. rm_Bilinear; break; case 2: VideoCapture1.Video_Resize_Mode = VisioForge_Video_Capture_3.TxVFResizeMode.rm_Bilinear_HQ; break; case 3: VideoCapture1.Video_Resize_Mode = VisioForge_Video_Capture_3.TxVFResizeMode.rm_Bicubic; break; case 4: VideoCapture1.Video_Resize_Mode = VisioForge_Video_Capture_3.TxVFResizeMode.rm_Bicubic_HQ; break; };
VideoCapture1.Video_ResizeOrCrop_Enabled := true;
VideoCapture1.Video_ResizeOrCrop_Enabled = true;
VideoCapture1.Video_Crop_Left := StrToInt(edCropLeft.Text); VideoCapture1.Video_Crop_Top := StrToInt(edCropTop.Text); VideoCapture1.Video_Crop_Right := StrToInt(edCropRight.Text); VideoCapture1.Video_Crop_Bottom := StrToInt(edCropBottom.Text);
VideoCapture1.Video_Crop_Left = Convert.ToInt32(edCropLeft.Text); VideoCapture1.Video_Crop_Top = Convert.ToInt32(edCropTop.Text); VideoCapture1.Video_Crop_Right = Convert.ToInt32(edCropRight.Text); VideoCapture1.Video_Crop_Bottom = Convert.ToInt32(edCropBottom.Text);