TIOMultiParams.DuplicateCompressionInfo

Declaration

procedure DuplicateCompressionInfo(IncludePDFInfo: Boolean = False);

Description

Clone the compression information from idx 0 to all frames of the current image.
If IncludePDFInfo=True, PDF page properties are also duplicated.

The following properties are duplicated:

General
- BitsPerSample
- SamplesPerPixel

TIFF
- TIFF_Compression
- TIFF_PhotometInterpret
- TIFF_PlanarConf
- TIFF_Orientation
- TIFF_EnableAdjustOrientation
- TIFF_JPEGQuality
- TIFF_JPEGColorSpace
- TIFF_FillOrder
- TIFF_ZIPCompression
- TIFF_StripCount
- TIFF_Normalize32fImages

GIF
-GIF_Interlaced

ICO
- ICO_Format

PS
- PS_Compression

PDF
- PDF_Compression
- PDF_PaperWidth (if IncludePDFInfo=True)
- PDF_PaperHeight (if IncludePDFInfo=True)
- PDF_PageMargin (if IncludePDFInfo=True)
- PDF_ImageOptions (if IncludePDFInfo=True)

DICOM
- DICOM_Range
- DICOM_Compression
- DICOM_JPEGQuality
- DICOM_J2000Rate

Some other compression properties are also duplicated (though not used by multi-frame formats):
JPEG_ColorSpace, JPEG_Quality, JPEG_DCTMethod, JPEG_CromaSubsampling, JPEG_OptimalHuffman, JPEG_Smooth, JPEG_Progressive,
J2000_ColorSpace, J2000_Rate, J2000_ScalableBy, J2000_SubSamplingH, J2000_SubSamplingV, J2000_Reduce, J2000_Quality,
PNG_Interlaced, PNG_Filter, PNG_Compression,
TGA_Compressed, TGA_GrayLevel,
PCX_Version, PCX_Compression,
BMP_Version, BMP_Compression, BMP_HandleTransparency,
HDP_ImageQuality, HDP_Lossless
IEN_Compression, SVG_ImageCompression, PSD_LargeDocumentFormat

Examples

// Change the compression method for a TIFF file
MBitmap := TIEMultiBitmap.create;
MBitmap.ParamsEnabled := True;
MBitmap.Read( 'C:\MyImage.tiff' );
MBitmap.Params[ 0 ].TIFF_Compression := ioTIFF_G4FAX;
MBitmap.DuplicateCompressionInfo();
MBitmap.Write( 'C:\OutImage.tiff' );
MBitmap.Free;


// Create a multi-frame DICOM image from a source file list
procedure TForm1.CreateMultiDicom(sl: TStrings; SaveFilename: string);
var
  mbmp: TIEMultiBitmap;
  bmp : TIEBitmap;
  i: Integer;
begin
  mbmp := TIEMultiBitmap.Create;

  for i := 0 to sl.count-1 do
  begin
    bmp := TIEBitmap.Create();
    bmp.ParamsEnabled := True;
    bmp.Read(sl[i]);
    mbmp.AppendImage(bmp);
    bmp.Free;
  end;

  // Ensure all frames of DICOM are same size
  for I := 1 to mbmp.Count - 1 do
  begin
    bmp := mbmp.GetTIEBitmap( I );
    bmp.Resample( mbmp.ImageWidth[0], mbmp.ImageHeight[0], rfFastLinear );
    mbmp.ReleaseBitmap( I, True );
  end;

  // Ensure all frames of DICOM have same duplication and pixel format info
  mbmp.DuplicateCompressionInfo();

  mbmp.Write( SaveFilename, ioDICOM );
  mbmp.free;
end;

// Save all pages to PDF (A4) with centered images (and no scaling of small images)
ImageEnMView1.MIO.Params[0].PDF_PaperSize := iepA4;
ImageEnMView1.MIO.Params[0].PDF_PageMargin := Round( 0.25 * 72 ); // 1/4 inch
ImageEnMView1.MIO.Params[0].PDF_ImageOptions := [iepioShrinkOnly, iepioCentered];
ImageEnMView1.MIO.DuplicateCompressionInfo(TRUE);
ImageEnMView1.MIO.SaveToFilePDF('d:\test.pdf');

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