#include "l_bitmap.h"
L_LTIMGCOR_API L_INT L_GetMinMaxBits(pBitmap, pLowBit, pHighBit, uFlags)
Returns the low and high bits of the values present in a 12 or 16-bit grayscale and 48 and 64-bit image.
Pointer to the bitmap handle of a 12-bit or 16-bit grayscale and 48 and 64-bit bitmap.
Address of a variable that will be updated with the lowest bit set in the bitmap.
Address of a variable that will be updated with the highest bit set in the bitmap.
Reserved for future use. Must be 0.
Value | Meaning |
---|---|
SUCCESS | The function was successful. |
< 1 | An error occurred. Refer to Return Codes. |
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 L_WindowLevel or L_WindowLevelBitmap.
This function supports 12 and 16-bit grayscale. Support for 12 and 16-bit grayscaleimages is available in the Document and Medical Imaging toolkits.
This function does not support 32-bit grayscale images. It returns the error code ERROR_GRAY32_UNSUPPORTED if a 32-bit grayscale image is passed to this function.
Required DLLs and Libraries
Win32, x64, Linux.
This example gets the minimum and maximum bits for an image.
L_INT GetMinMaxBitsExample(L_VOID)
{
L_INT nRet;
BITMAPHANDLE LeadBitmap; /* Bitmap handle of the image. */
L_INT nLowBit; /* the low bit variable */
L_INT nHighBit; /* the high bit variable */
/* Load the bitmap, keeping the bits per pixel of the file */
nRet = L_LoadBitmap (MAKE_IMAGE_PATH(TEXT("ImageProcessingDemo\\brain.tif")), &LeadBitmap, sizeof(BITMAPHANDLE), 0, ORDER_BGRORGRAY, NULL, NULL);
if(nRet !=SUCCESS)
return nRet;
/* get min/max bits */
nRet = L_GetMinMaxBits(&LeadBitmap, &nLowBit, &nHighBit, 0);
if(nRet !=SUCCESS)
return nRet;
nRet = L_SaveBitmap(MAKE_IMAGE_PATH(TEXT("Result.BMP")), &LeadBitmap, FILE_BMP, 24, 0, NULL);
if(nRet !=SUCCESS)
return nRet;
//free Bitmap
if(LeadBitmap.Flags.Allocated)
L_FreeBitmap(&LeadBitmap);
return SUCCESS;
}
Help Collections
Raster .NET | C API | C++ Class Library | HTML5 JavaScript
Document .NET | C API | C++ Class Library | HTML5 JavaScript
Medical .NET | C API | C++ Class Library | HTML5 JavaScript
Medical Web Viewer .NET
Multimedia
Direct Show .NET | C API | Filters
Media Foundation .NET | C API | Transforms
Supported Platforms
.NET, Java, Android, and iOS/macOS Assemblies
Imaging, Medical, and Document
C API/C++ Class Libraries
Imaging, Medical, and Document
HTML5 JavaScript Libraries
Imaging, Medical, and Document