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111 lines
3.1 KiB
C
111 lines
3.1 KiB
C
4 years ago
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/*!
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* \file SampleInstance.h
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* \date 2019/12/17
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*
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* \author Lin, Chi
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* Contact: lin.chi@hzleaper.com
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*
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*
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* \note
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*/
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#ifndef __SampleInstance_h_
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#define __SampleInstance_h_
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#include "StdUtils.h"
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#include "DetectRoi.h"
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#include <unordered_map>
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/*! \brief Define a sample instance used for training or test, organized and stored by SampleDBManager
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*/
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struct SampleInstance
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{
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/*! filename(or rather relative path to root folder) */
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std::string name;
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/*! original image, could be empty if the instance is unloaded */
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Mat img;
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/*! original mask, generated by detection roi */
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Mat mask;
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/*! detect roi on original image, could be empty if the instance is unloaded */
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DetectRoi droi;
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/*! cached size-uniformed image */
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Mat simg;
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/*! cached size-uniformed mask */
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Mat smask;
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/*! cached feature vector */
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Mat fv;
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/*! User-defined properties. */
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typedef std::map<int, Mat> UserDataMap;
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UserDataMap userData;
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SampleInstance() : rootFolder("") {}
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SampleInstance(const std::string& dir, const std::string& n) : rootFolder(dir), name(n) {}
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/*! load image and roi from disk
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* @forceReload whether to always reload sample image from disk
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* @size resize sample image to provided size, do nothing for null size
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* @return true if already loaded or successfully loaded
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*/
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virtual bool load(bool forceReload = false, const Size& size = Size());
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/** @overload */
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virtual bool load(const Mat& sampleImg, DetectRoi& roi, const Size& size = Size());
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/** @overload */
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virtual bool load(const Mat& sampleImg, const Size& size = Size());
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/*! cleanup loaded image and roi */
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virtual void unload();
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/*! save sample image and roi to disk */
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virtual bool save();
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/*! get thumbnail for preview */
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virtual Mat getThumb();
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/*! get full path to the sample file */
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std::string getFullPath() const { return rootFolder + name; }
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/*! clean up cached feature vector */
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void cleanup() { fv = Mat(); }
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/*! check whether the sample instance is located in provided folder */
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bool isInFolder(const string& folderPath) const { return rootFolder == folderPath; }
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/*! get where the sample instance is located */
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const std::string& getFolder() const { return rootFolder; }
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/*! query user data */
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Mat getUserData(int idx) const {
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auto it = userData.find(idx);
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if (it == userData.end()) return Mat();
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else return it->second;
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}
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/*! generate a new sample instance after apply transformation(shift, scale, rotate) */
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virtual bool convert(double alpha, double beta, double dx, double dy,
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std::shared_ptr<SampleInstance>& siPtr);
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/*! whether this is a generated sample */
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virtual bool isGenerated() const { return generated; }
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private:
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void refreshImgCache(const Size& size = Size());
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Mat resizeImg(const Mat& src, const Size& size, int interFlag);
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private:
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const std::string& rootFolder; // root folder
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bool generated = false;
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};
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typedef std::shared_ptr<SampleInstance> SampleInstPtr;
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typedef std::vector<SampleInstPtr> SampleInstVec;
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typedef std::unordered_map<std::string, SampleInstPtr> SampleInstMap;
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typedef ObjectVectorIterator<SampleInstPtr> SampleInstIterator;
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#endif // SampleInstance_h_
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