// This file is part of OpenCV project.
|
// It is subject to the license terms in the LICENSE file found in the top-level directory
|
// of this distribution and at http://opencv.org/license.html.
|
|
#ifndef OPENCV_RADIAL_VARIANCE_HASH_HPP
|
#define OPENCV_RADIAL_VARIANCE_HASH_HPP
|
|
#include "img_hash_base.hpp"
|
|
namespace cv {
|
namespace img_hash {
|
|
//! @addtogroup img_hash
|
//! @{
|
|
|
/** @brief Image hash based on Radon transform.
|
|
See @cite tang2012perceptual for details.
|
*/
|
class CV_EXPORTS_W RadialVarianceHash : public ImgHashBase
|
{
|
public:
|
CV_WRAP static Ptr<RadialVarianceHash> create(double sigma = 1, int numOfAngleLine = 180);
|
|
CV_WRAP int getNumOfAngleLine() const;
|
CV_WRAP double getSigma() const;
|
|
CV_WRAP void setNumOfAngleLine(int value);
|
CV_WRAP void setSigma(double value);
|
|
// internals
|
std::vector<double> getFeatures();
|
cv::Mat getHash();
|
Mat getPixPerLine(Mat const &input);
|
Mat getProjection();
|
protected:
|
RadialVarianceHash() {}
|
};
|
|
/** @brief Computes radial variance hash of the input image
|
@param inputArr input image want to compute hash value,
|
type should be CV_8UC4, CV_8UC3, CV_8UC1.
|
@param outputArr Hash value of input
|
@param sigma Gaussian kernel standard deviation
|
@param numOfAngleLine The number of angles to consider
|
*/
|
CV_EXPORTS_W void radialVarianceHash(cv::InputArray inputArr,
|
cv::OutputArray outputArr,
|
double sigma = 1,
|
int numOfAngleLine = 180);
|
|
|
//! @}
|
|
}} // cv::img_hash::
|
|
#endif // OPENCV_RADIAL_VARIANCE_HASH_HPP
|
