Difference between revisions of "Function:Lowlight"

From CUVI Wiki
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CuviImage input("D:/bayer.tif", CUVI_LOAD_IMAGE_GRAYSCALE_KEEP_DEPTH), output;
CuviImage input("D:/lowlight.jpg", CUVI_LOAD_IMAGE_COLOR_KEEP_DEPTH), output;
   
   
cuvi::colorOperations::demosaicDFPD(input, output, CUVI_BAYER_RGGB);
//Perform low-light enhancement
cuvi::colorOperations::lowlight(input, output);


// Or this to further refine the results
//Save Output to file
cuvi::colorOperations::demosaicDFPD(input, output, CUVI_BAYER_RGGB, true);
cuvi::io::saveImage(output, "D:/enhanced.jpg");
cuvi::io::saveImage(output, "D:/debayered.png");


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Revision as of 18:46, 27 March 2018

Enhances the low intensity colors in a dark photo taken from a general purpose mobile, CCTV or DSLR camera. Our technique restores most of the hidden features in a low light image making it suitable for enhancing security footage in real-time at dawn, dusk and other low light conditions.

Function

CuviStatus cuvi::colorOperations::lowlight(const CuviImage& src,
                                           CuviImage& dst,
                                           const CuviStream& stream = CuviStream());

Parameters

Name Type Description
src const CuviImage& Input Image
dst CuviImage& Output Image
stream const CuviStream& GPU stream ID for execution

Image Type Support

Input Output
8uC3 8uC3
16uC3 16uC3

Sample

Error creating thumbnail: Unable to save thumbnail to destination
Input
Error creating thumbnail: Unable to save thumbnail to destination
Output

Example

CuviImage input("D:/lowlight.jpg", CUVI_LOAD_IMAGE_COLOR_KEEP_DEPTH), output;
 
//Perform low-light enhancement
cuvi::colorOperations::lowlight(input, output);

//Save Output to file
cuvi::io::saveImage(output, "D:/enhanced.jpg");
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