LBitmap::GetMinMaxBits
#include "ltwrappr.h"
virtual L_INT LBitmap::GetMinMaxBits(pnLowBit, pnHighBit)
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/* address of a variable to be updated */ | |
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/* address of a variable to be updated */ |
Returns the low and high bits of the values present in a 12 or 16-bit grayscale and 48 and 64-bit image. This function is available in Document/Medical toolkits only.
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Parameter |
Description |
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pnLowBit |
Address of a variable to be updated with the lowest bit set in the bitmap. |
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pnHighBit |
Address of a variable to be updated with the highest bit set in the bitmap. |
Returns
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SUCCESS |
The function was successful. |
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< 1 |
An error occurred. Refer to Return Codes. |
Comments
The minimum and maximum bit values can be used to specify the range of useful bits and to create a lookup table, for use in LBitmap::WindowLevel or LBitmap::WindowLevelBitmap.
This function supports 12 and 16-bit grayscale images. Support for 12 and 16-bit grayscale images is available only in the Document/Medical toolkits.
This function supports signed data images.
Required DLLs and Libraries
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LTDIS 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
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Functions: |
LBitmap::GetMinMaxVal, LBitmap::WindowLevel, LBitmap::WindowLevelBitmap, Class Members |
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Topics: |
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Raster Image Functions: Working with Color Halftones, Halftones, and Grayscale Images |
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Example
LBitmap LeadBitmap;
L_INT nLowBit, nHighBit;
L_TCHAR szDummyBuffer[50];
LeadBitmap.Load(TEXT("test16.tif"), 0,ORDER_BGR);
if(
((LeadBitmap.IsGrayScale()!=GRAY_NO)&&
((LeadBitmap.GetBitsPerPixel ()==12)||
(LeadBitmap.GetBitsPerPixel()==16)))
)
{
LeadBitmap.GetMinMaxBits(&nLowBit, &nHighBit);
wsprintf(szDummyBuffer, TEXT("LowBit= %d\tHighBit= %d"), nLowBit, nHighBit);
MessageBox(NULL, szDummyBuffer, TEXT("GetMinMaxBits"), MB_OK);
}
else
MessageBox(NULL, TEXT("Not a (12 or 16) gray scale image."), TEXT("GetMinMaxBits"), MB_OK);