Function:LUT

Remaps image values according to look up table.

Function

CuviStatus LUT(const CuviImage& src, const CuviImage& mapping, CuviImage& dst, const CuviStream& stream = CuviStream());

Parameters

Name	Type	Description
src	CuviImage&	Input Image
mapping	CuviImage&	The look-up table
dst	CuviImage&	Resultant Image
stream	CuviStream&	GPU stream ID for execution

Image Type Support

Input 1	Input 2	Output
8uC1	8uC1	8uC1
8uC3	8uC3	8uC3

Example

CuviImage input = cuvi::io::loadImage(path), output; //Create LUT on host const int mappingSize = 256; unsigned char mappingValues[mappingSize]; //Initialize LUT with values which invert the image values for(int i=0; i<mappingSize; i++) mappingValues[i] = 255 - i; //Create and upload LUT matrix on device CuviImage mapping(mappingSize,1, CUVI_8UC1); mapping.upload(mappingValues, sizeof(mappingValues)); cuvi::colorOperations::LUT( input, mapping, output );