You can resize the image or crop it the way you like. These operations are performed in real time and use almost no CPU.

 

Resize

Enable resizing or cropping

Delphi	VideoCapture1.Video_ResizeOrCrop_Enabled := true;
C++/C#	VideoCapture1.Video_ResizeOrCrop_Enabled = true;

 

Set width and height

Delphi	VideoCapture1.Video_Resize_NewWidth := StrToInt(edResizeWidth.Text); VideoCapture1.Video_Resize_NewHeight := StrToInt(edResizeHeight.Text);
C++/C#	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.

Delphi	VideoCapture1.Video_Resize_LetterBox := cbResizeLetterbox.Checked;
C++/C#	VideoCapture1.Video_Resize_LetterBox = cbResizeLetterbox.Checked;

 

You can also select one of several resizing algorithms. They differ in quality and CPU usage.

Delphi

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;

C++/C#

switch (cbResizeMode.SelectedIndex) { case 0: VideoCapture1.Video_Resize_Mode = VisioForge_Video_Capture_4.TxVFResizeMode.rm_NearestNeighbor; break; case 1: VideoCapture1.Video_Resize_Mode = VisioForge_Video_Capture_4.TxVFResizeMode. rm_Bilinear; break; case 2: VideoCapture1.Video_Resize_Mode = VisioForge_Video_Capture_4.TxVFResizeMode.rm_Bilinear_HQ; break; case 3: VideoCapture1.Video_Resize_Mode = VisioForge_Video_Capture_4.TxVFResizeMode.rm_Bicubic; break; case 4: VideoCapture1.Video_Resize_Mode = VisioForge_Video_Capture_4.TxVFResizeMode.rm_Bicubic_HQ; break; };

 

Crop

Enable resizing or cropping

Delphi	VideoCapture1.Video_ResizeOrCrop_Enabled := true;
C++/C#	VideoCapture1.Video_ResizeOrCrop_Enabled = true;

 

Set area

Delphi	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);
C++/C#	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);