L_DicomSetJ2KOptions

#include "ltdic.h"

L_UINT16 EXT_FUNCTION L_DicomSetJ2KOptions(hDS, pOptions)

HDICOMDS hDS;	/* a DICOM handle */
pFILEJ2KOPTIONS pOptions;	/* pointer to a structure */

Sets the JPEG 2000 compression options.

Parameter	Description
hDS	A DICOM handle.
pOptions	Pointer to a structure that contains the options to use when compressing the image(s) in a Pixel Data element using the JPEG 2000 compression.

Returns

0	SUCCESS
>0	An error occurred. Refer to Return Codes.

Comments

The nSize member of the FILEJ2KOPTIONS structure must be set before calling this function.

Required DLLs and Libraries

LTDIC

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application

See Also

Functions:	L_DicomInsertImage, L_DicomInsertImageList, L_DicomSetImage, L_DicomSetImageList, L_DicomGetJ2KOptions, L_DicomGetDefaultJ2KOptions
Topics:	Working with Data Sets
	Implementing JPEG 2000 Plug in Features

Example

/* This example inserts an image in a Data Set
   Using the JPEG 2000 compression with a 100:1
   compression ratio
*/

L_VOID MyInsertImage(HDICOMDS hDS,pBITMAPHANDLE pBitmap)
{
   if(hDS && pBitmap)
   {
      pDICOMELEMENT pElement;
      FILEJ2KOPTIONS J2KOptions;

      // Get the current JPEG 2000 compression options.
      L_DicomGetJ2KOptions(   hDS,
                              &J2KOptions,
                              sizeof(FILEJ2KOPTIONS));
      J2KOptions.uCompressionControl = J2K_COMPRESSION_RATIO;
      // set the compression ratio to 100
      J2KOptions.fCompressionRatio = 100.0f;
      // Update the JPEG 2000 compression options.
      L_DicomSetJ2KOptions(hDS,
                           &J2KOptions);
      pElement = L_DicomFindFirstElement(hDS,
                                          NULL,
                                          TAG_PIXEL_DATA,
                                          FALSE);
      if (pElement != NULL)
      {
         L_DicomInsertImage(  hDS,
                              pElement,
                              pBitmap,
                              1,
                              IMAGE_COMPRESSION_J2K_LOSSY,
                              IMAGE_PHOTOMETRIC_MONOCHROME2,
                              0,
                              25,
                              DICOM_SETIMAGE_AUTO_SET_VOI_LUT,
                              NULL,
                              NULL);
      }
   }
}