LDicomDS::SetJ2KOptions

#include "ltdic.h"

L_UINT16 LDicomDS::SetJ2KOptions(pOptions)

/* pointer to a structure */

Sets the JPEG 2000 compression options.

Parameter	Description
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:	LDicomDS::InsertImage, LDicomDS::InsertImageList, LDicomDS::SetImage, LDicomDS::SetImageList, LDicomDS::GetJ2KOptions, LDicomDS::GetDefaultJ2KOptions
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(LDicomDS *pDS ,pBITMAPHANDLE pBitmap)
{
   if(pDS && pBitmap)
   {
      pDICOMELEMENT  pElement;
      FILEJ2KOPTIONS J2KOptions;

      // Get the current JPEG 2000 compression options.
      pDS->GetJ2KOptions(  &J2KOptions,
                           sizeof(FILEJ2KOPTIONS));
      J2KOptions.uCompressionControl = J2K_COMPRESSION_RATIO;
      // set the compression ratio to 100
      J2KOptions.fCompressionRatio = 100.0f;
      // Update the JPEG 2000 compression options.
      pDS->SetJ2KOptions(&J2KOptions);

      pElement = pDS->FindFirstElement(NULL, TAG_PIXEL_DATA, FALSE);
      if (pElement != NULL)
      {
         pDS->InsertImage( pElement,
                           pBitmap,
                           1,
                           IMAGE_COMPRESSION_J2K_LOSSY,
                           IMAGE_PHOTOMETRIC_MONOCHROME2,
                           0,
                           25,
                           0,
                           NULL,
                           NULL);
      }
   }
}