Remaps image values according to look up tables but instead of a single table like in LUT, the blackGammaLUT takes separate tables for each channel.
Function
CuviStatus blackGammaLUT(const CuviImage& src,
CuviImage& dst,
Cuvi16u* redLUT,
Cuvi16u* greenLUT,
Cuvi16u* blueLUT,
const CuviStream& stream = CuviStream());
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Parameters
| Name
|
Type
|
Description
|
| src
|
CuviImage&
|
Input Image
|
| dst
|
CuviImage&
|
Resultant Image
|
| redLUT
|
Cuvi16u*
|
The look-up table for red channel
|
| greenLUT
|
Cuvi16u*
|
The look-up table for green channel
|
| blueLUT
|
Cuvi16u*
|
The look-up table for blue channel
|
| stream
|
CuviStream&
|
GPU stream ID for execution
|
|
Image Type Support
Example
CuviImage input = cuvi::io::loadImage(path), output;
//blackGammaLUT Parameters
const int mappingSize = 256;
Cuvi16u redLUT[mappingSize], greenLUT[mappingSize], blueLUT[mappingSize];
for (int i = 0; i < mappingSize; i++) {
redLUT[i] = 255 - i;
greenLUT[i] = i;
blueLUT[i] = i;
}
//blackGammaLUT
CuviStatus status = cuvi::colorOperations::blackGammaLUT(input,
output,
redLUT,
greenLUT,
blueLUT);
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