#include "ltdic.h"
L_UINT16 LDicomDS::SetPaletteColorLUTData(pLUTData, uDataSize, PaletteColorLUTType, uFlags)
Sets red, green or blue "Palette Color Lookup Table" data.
Pointer to the buffer that holds the "Palette Color Lookup Table Data" to set.
Size of the buffer pointed to by pLUTData.
Type of palette color lookup table data to set. The following are possible values:
Value | Meaning |
---|---|
DICOMPALETTECOLORLUTTYPE_RED | Set "Red Palette Color Lookup Table Data" (0028,1201) |
DICOMPALETTECOLORLUTTYPE_GREEN | Set "Green Palette Color Lookup Table Data" (0028,1202) |
DICOMPALETTECOLORLUTTYPE_BLUE | Set "Blue Color Lookup Table Data" (0028,1203) |
Reserved for future use. Pass 0.
Value | Meaning |
---|---|
0 | The function was successful. |
> 0 | An error occurred. Refer to Return Codes. |
Before calling this function you must call LDicomDS::SetPaletteColorLUTAttributes to set the attributes of the "Palette Color Lookup Table", otherwise this function will fail and return DICOM_ERROR_LUT_DESCRIPTOR_MISSING.
Required DLLs and Libraries
Win32, x64
This example will set the attributes and the date for a Palette Color Lookup Table
//#define SET_SIZE(PSTRUCTPTR) (PSTRUCTPTR)->uStructSize = sizeof(*PSTRUCTPTR)
L_INT LDicomDS_SetPaletteColorLUTDataExample(LDicomDS &InDS)
{
L_INT nRet;
L_INT nLUTIndex;
L_UINT16 * pRedLUTData = NULL;
L_UINT16 * pGreenLUTData = NULL;
L_UINT16 * pBlueLUTData = NULL;
DICOMPALCOLORLUTATTRIBS PaletteColorLUTAttributes = {0} ;
// Remember to set the size for each structure
PaletteColorLUTAttributes.uStructSize = sizeof(DICOMPALCOLORLUTATTRIBS);
PaletteColorLUTAttributes.RedLUTDescriptor.uStructSize = sizeof(DICOMLUTDESCRIPTOR);
PaletteColorLUTAttributes.GreenLUTDescriptor.uStructSize = sizeof(DICOMLUTDESCRIPTOR);
PaletteColorLUTAttributes.BlueLUTDescriptor.uStructSize = sizeof(DICOMLUTDESCRIPTOR);
// Initialize Red Palette Color Lookup Table Descriptor (0028,1101)
PaletteColorLUTAttributes.RedLUTDescriptor.nFirstStoredPixelValueMapped = 0;
PaletteColorLUTAttributes.RedLUTDescriptor.uEntryBits = 16;
PaletteColorLUTAttributes.RedLUTDescriptor.uNumberOfEntries = 0x10000;
// Initialize Green Palette Color Lookup Table Descriptor (0028,1102)
PaletteColorLUTAttributes.GreenLUTDescriptor.nFirstStoredPixelValueMapped = 0;
PaletteColorLUTAttributes.GreenLUTDescriptor.uEntryBits = 16;
PaletteColorLUTAttributes.GreenLUTDescriptor.uNumberOfEntries = 0x10000;
// Initialize Blue Palette Color Lookup Table Descriptor (0028,1103)
PaletteColorLUTAttributes.BlueLUTDescriptor.nFirstStoredPixelValueMapped = 0;
PaletteColorLUTAttributes.BlueLUTDescriptor.uEntryBits = 16;
PaletteColorLUTAttributes.BlueLUTDescriptor.uNumberOfEntries = 0x10000;
// Allocate a buffer to hold Red Palette Color Lookup Table Data
pRedLUTData = (L_UINT16*)malloc(0x10000 * sizeof(L_UINT16));
if(!pRedLUTData)
{
return DICOM_ERROR_MEMORY;
}
// Allocate a buffer to hold Green Palette Color Lookup Table Data
pGreenLUTData = (L_UINT16*)malloc(0x10000 * sizeof(L_UINT16));
if(!pGreenLUTData)
{
free(pRedLUTData);
return DICOM_ERROR_MEMORY;
}
// Allocate a buffer to hold Blue Palette Color Lookup Table Data
pBlueLUTData = (L_UINT16*)malloc(0x10000 * sizeof(L_UINT16));
if(!pBlueLUTData)
{
free(pRedLUTData);
free(pGreenLUTData);
return DICOM_ERROR_MEMORY;
}
for(nLUTIndex = 0; nLUTIndex <= 0xFFFF; nLUTIndex++)
{
pRedLUTData [nLUTIndex] = (L_UINT16) nLUTIndex ;
pGreenLUTData [nLUTIndex] = (L_UINT16) nLUTIndex/2;
pBlueLUTData [nLUTIndex] = (L_UINT16) nLUTIndex/4;
}
// Delete all the elements that describe the "Palette Color Lookup Table".
nRet = InDS.DeletePaletteColorLUT (0);
if(nRet != DICOM_SUCCESS)
{
free(pRedLUTData);
free(pGreenLUTData);
free(pBlueLUTData);
return nRet;
}
// Set the new "Palette Color Lookup Table" attributes
nRet = InDS.SetPaletteColorLUTAttributes (&PaletteColorLUTAttributes, 0);
if(nRet != DICOM_SUCCESS)
{
free(pRedLUTData);
free(pGreenLUTData);
free(pBlueLUTData);
return nRet;
}
// Set Red Palette Color Lookup Table Data
nRet = InDS.SetPaletteColorLUTData (pRedLUTData,0x10000,DICOMPALETTECOLORLUTTYPE_RED,0);
if(nRet != DICOM_SUCCESS)
{
free(pRedLUTData);
free(pGreenLUTData);
free(pBlueLUTData);
return nRet;
}
// Set Green Palette Color Lookup Table Data
nRet = InDS.SetPaletteColorLUTData (pGreenLUTData,0x10000,DICOMPALETTECOLORLUTTYPE_GREEN,0);
if(nRet != DICOM_SUCCESS)
{
free(pRedLUTData);
free(pGreenLUTData);
free(pBlueLUTData);
return nRet;
}
// Set Blue Palette Color Lookup Table Data
nRet = InDS.SetPaletteColorLUTData (pBlueLUTData,0x10000,DICOMPALETTECOLORLUTTYPE_BLUE,0);
if(nRet != DICOM_SUCCESS)
{
free(pRedLUTData);
free(pGreenLUTData);
free(pBlueLUTData);
return nRet;
}
free(pRedLUTData);
free(pGreenLUTData);
free(pBlueLUTData);
return DICOM_SUCCESS;
}