Function:FocusStack

Stacks multiple images into a single image. Images need to be aligned.

Function

CuviStatus focusStack(const CuviImage* ImgArr,
                  const int numImages
                  CuviImage& sharpImage,
                  CuviFilter denoiseFilter
                  const CuviStream& stream = CuviStream());

Parameters

Name	Type	Description
ImgArr	const CuviImage*	Input images array
numImages	const int	Number of images
sharpImage	CuviImage&	Resultant image
denoiseFilter	CuviFilter	Filter to remove noise
stream	const CuviStream&	GPU stream ID for execution

Image Type Support

Input	Output
8uC3 x N	8uC3
16uC3 x N	16uC3

Samples

Input image with foreground focused	Input image with background focused
Focus-Stacked Image

Example

std::string path = "D:/dataset/fs/imageFolder/"; std::string result = "D:/dataset/fs/focused.png"; for (const auto& entry : fs::directory_iterator(path)) { if (entry.path().has_extension() && isSupportedExtension(entry.path().extension().string())) vec.push_back(entry.path().string()); } int numImages = vec.size(); vector<CuviImage> ImgArr(numImages); //Sort filesnames to read in order. THIS IS VERY IMPORTANT FOR FOCUS STACKING sort(vec.begin(), vec.end(), lessFirst); for (int i = 0; i < numImages; i++) { ImgArr[i].create(vec[i], CUVI_LOAD_IMAGE_COLOR_KEEP_DEPTH); cout << vec[i]<< std::endl; } CuviImage focusImage; CuviFilter denoiseFilter = CuviSpecialFilters::gaussian(CuviSize(11, 11), 15.0f); cuvi::computerVision::focusStack(ImgArr.data(), numImages, focusImage, denoiseFilter); printf("\nSaving to disk.."); cuvi::io::saveImage(focusImage, result);