LBitmap::GetMinMaxVal
#include "ltwrappr.h"
virtual L_INT LBitmap::GetMinMaxVal(puMinVal, puMaxVal)
|
/* address of the variable to be updated */ | |
|
/* address of the variable to be updated */ |
Returns the minimum and maximum intensity values present in a 12 or 16-bit grayscale or a 48 or 64-bit color image. This function is available in Document/Medical toolkits only.
|
Parameter |
Description |
|
puMinVal |
Address of a variable to be updated with the minimum intensity value present in the bitmap. |
|
puMaxVal |
Address of a variable to be updated with the maximum intensity value present in the bitmap. |
Returns
|
SUCCESS |
The function was successful. |
|
< 1 |
An error occurred. Refer to Return Codes. |
Comments
The minimum and maximum values can be used 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
|
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
|
Functions: |
LBitmap::GetMinMaxBits, LBitmap::WindowLevel, LBitmap::WindowLevelBitmap, Class Members |
|
Topics: |
|
|
|
|
|
|
|
|
|
Raster Image Functions: Working with Color Halftones, Halftones, and Grayscale Images |
|
|
Example
LBitmap LeadBitmap;
L_INT nLowBit, nHighBit;
L_TCHAR szDummyBuffer[50];
LeadBitmap.Load(TEXT("image1.cmp "), 0,ORDER_BGR);
if(
((LeadBitmap.IsGrayScale()!=GRAY_NO)&&
((LeadBitmap.LBitmapBase::GetBitsPerPixel()==12)||
(LeadBitmap.LBitmapBase::GetBitsPerPixel()==16)))
)
{
LeadBitmap.GetMinMaxVal(&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);