Sets the JPEG 2000 compression options.
#include "ltdic.h"
L_LTDIC_API L_UINT16 L_DicomSetJ2KOptions(hDS, pOptions)
A DICOM handle.
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.
Value | Meaning |
---|---|
DICOM_SUCCESS | The function was successful. |
>0 | An error occurred. Refer to Return Codes. |
The nSize member of the FILEJ2KOPTIONS structure must be set before calling this function.
Win32, x64, Linux.
This example inserts an image in a Data Set
Using the JPEG 2000 compression with a 100:1
compression ratio
L_INT DicomSetJ2KOptionsExample(HDICOMDS hDS, pBITMAPHANDLE pBitmap)
{
L_UINT16 nRet;
if(hDS && pBitmap)
{
pDICOMELEMENT pElement;
FILEJ2KOPTIONS J2KOptions;
// Get the current JPEG 2000 compression options.
nRet = L_DicomGetJ2KOptions(hDS, &J2KOptions, sizeof(FILEJ2KOPTIONS));
if (nRet != DICOM_SUCCESS)
return nRet;
J2KOptions.uCompressionControl = J2K_COMPRESSION_RATIO;
// set the compression ratio to 100
J2KOptions.fCompressionRatio = 100.0f;
// Update the JPEG 2000 compression options.
nRet = L_DicomSetJ2KOptions(hDS, &J2KOptions);
if (nRet != DICOM_SUCCESS)
return nRet;
pElement = L_DicomFindFirstElement(hDS, NULL, TAG_PIXEL_DATA, FALSE);
if (pElement != NULL)
{
nRet = L_DicomInsertImage(hDS,
pElement,
pBitmap,
1,
IMAGE_COMPRESSION_J2K_LOSSY,
IMAGE_PHOTOMETRIC_MONOCHROME2,
0,
25,
DICOM_SETIMAGE_AUTO_SET_VOI_LUT,
NULL,
NULL);
if (nRet != DICOM_SUCCESS)
return nRet;
}
}
return DICOM_SUCCESS;
}
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