mirror of
https://github.com/OpenSpace/OpenSpace.git
synced 2026-01-01 01:01:37 -06:00
89 lines
3.8 KiB
C++
89 lines
3.8 KiB
C++
/*****************************************************************************************
|
|
* *
|
|
* OpenSpace *
|
|
* *
|
|
* Copyright (c) 2014-2024 *
|
|
* *
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy of this *
|
|
* software and associated documentation files (the "Software"), to deal in the Software *
|
|
* without restriction, including without limitation the rights to use, copy, modify, *
|
|
* merge, publish, distribute, sublicense, and/or sell copies of the Software, and to *
|
|
* permit persons to whom the Software is furnished to do so, subject to the following *
|
|
* conditions: *
|
|
* *
|
|
* The above copyright notice and this permission notice shall be included in all copies *
|
|
* or substantial portions of the Software. *
|
|
* *
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, *
|
|
* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A *
|
|
* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT *
|
|
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF *
|
|
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE *
|
|
* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
|
|
****************************************************************************************/
|
|
|
|
#ifndef __OPENSPACE_CORE___HISTOGRAM___H__
|
|
#define __OPENSPACE_CORE___HISTOGRAM___H__
|
|
|
|
#include <vector>
|
|
|
|
namespace openspace {
|
|
|
|
class Histogram {
|
|
public:
|
|
Histogram() = default;
|
|
Histogram(float minValue, float maxValue, int numBins, float* data = nullptr);
|
|
Histogram(Histogram&& other) = default;
|
|
~Histogram();
|
|
|
|
Histogram& operator=(Histogram&& other) = default;
|
|
|
|
int numBins() const;
|
|
float minValue() const;
|
|
float maxValue() const;
|
|
bool isValid() const;
|
|
|
|
/**
|
|
* Enter value into the histogram. The add method takes the given value, works out
|
|
* which bin this corresponds to, and increments this bin by 'repeat'.
|
|
*
|
|
* \param value The Value to insert into the histogram
|
|
* \param repeat How many times you want to insert it
|
|
* \return Returns `true` if succesful insertion, otherwise return `false`
|
|
*/
|
|
bool add(float value, float repeat = 1.f);
|
|
bool add(const Histogram& histogram);
|
|
bool addRectangle(float lowBin, float highBin, float value);
|
|
|
|
float interpolate(float bin) const;
|
|
float sample(int binIndex) const;
|
|
const float* data() const;
|
|
std::vector<std::pair<float,float>> getDecimated(int numBins) const;
|
|
|
|
void normalize();
|
|
void print() const;
|
|
void generateEqualizer();
|
|
Histogram equalize();
|
|
float equalize(float) const;
|
|
float entropy();
|
|
std::vector<char> getBinaryData() const;
|
|
|
|
float highestBinValue(bool equalized, int overBins=0);
|
|
float binWidth() const;
|
|
|
|
void changeRange(float minValue, float maxValue);
|
|
|
|
private:
|
|
int _numBins = -1;
|
|
float _minValue = 0.f;
|
|
float _maxValue = 0.f;
|
|
|
|
float* _data = nullptr;
|
|
std::vector<float> _equalizer;
|
|
int _numValues = 0;
|
|
};
|
|
|
|
} // namespace openspace
|
|
|
|
#endif // __OPENSPACE_CORE___HISTOGRAM___H__
|