denoise.hpp

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// toolboxes/wavelet/include/nk/wavelet/denoise/denoise.hpp
//
// Wavelet-domain denoising: thresholding rules (wthresh), noise σ
// estimation (wnoisest), and the composite VisuShrink-style
// denoiser (wdenoise).
 
#pragma once
 
#include <memory_resource>
#include <nk/value/value.hpp>
#include <string>
 
namespace nk::wavelet {

 

Value wthresh(const Value &X, const std::string &sorh, double T,
              std::pmr::memory_resource *mr = nullptr);

Value wnoisest(const Value &C, const Value &L, const Value &S,
               std::pmr::memory_resource *mr = nullptr);

Value wdenoise(const Value &x, int level, const std::string &wname,
               std::pmr::memory_resource *mr = nullptr);

Value wentropy(const Value &X, const std::string &type, double param = 0.0,
               std::pmr::memory_resource *mr = nullptr);

struct DdencmpResult {
    Value thr;       
    Value sorh;      
    Value keepapp;   
};

DdencmpResult ddencmp(const std::string &opt, const std::string &type,
                      const Value &x, std::pmr::memory_resource *mr = nullptr);
 

} // namespace nk::wavelet