Remaps image values according to look up table.
Function
CuviStatus LUT(const CuviImage& src,
const CuviImage& mapping,
CuviImage& dst,
const CuviStream& stream = CuviStream());
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Parameters
| Name
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Type
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Description
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| src
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CuviImage&
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Input Image
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| mapping
|
CuviImage&
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The look-up table
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| dst
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CuviImage&
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Resultant Image
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| stream
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CuviStream&
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GPU stream ID for execution
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Image Type Support
| Input 1
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Input 2
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Output
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| 8u
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8u
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8u
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Sample
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 );
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