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diff --git a/thirdparty/linux/include/opencv2/bioinspired/retina.hpp b/thirdparty/linux/include/opencv2/bioinspired/retina.hpp new file mode 100644 index 0000000..583599c --- /dev/null +++ b/thirdparty/linux/include/opencv2/bioinspired/retina.hpp @@ -0,0 +1,456 @@ +/*#****************************************************************************** + ** IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING. + ** + ** By downloading, copying, installing or using the software you agree to this license. + ** If you do not agree to this license, do not download, install, + ** copy or use the software. + ** + ** + ** bioinspired : interfaces allowing OpenCV users to integrate Human Vision System models. Presented models originate from Jeanny Herault's original research and have been reused and adapted by the author&collaborators for computed vision applications since his thesis with Alice Caplier at Gipsa-Lab. + ** Use: extract still images & image sequences features, from contours details to motion spatio-temporal features, etc. for high level visual scene analysis. Also contribute to image enhancement/compression such as tone mapping. + ** + ** Maintainers : Listic lab (code author current affiliation & applications) and Gipsa Lab (original research origins & applications) + ** + ** Creation - enhancement process 2007-2015 + ** Author: Alexandre Benoit (benoit.alexandre.vision@gmail.com), LISTIC lab, Annecy le vieux, France + ** + ** Theses algorithm have been developped by Alexandre BENOIT since his thesis with Alice Caplier at Gipsa-Lab (www.gipsa-lab.inpg.fr) and the research he pursues at LISTIC Lab (www.listic.univ-savoie.fr). + ** Refer to the following research paper for more information: + ** Benoit A., Caplier A., Durette B., Herault, J., "USING HUMAN VISUAL SYSTEM MODELING FOR BIO-INSPIRED LOW LEVEL IMAGE PROCESSING", Elsevier, Computer Vision and Image Understanding 114 (2010), pp. 758-773, DOI: http://dx.doi.org/10.1016/j.cviu.2010.01.011 + ** This work have been carried out thanks to Jeanny Herault who's research and great discussions are the basis of all this work, please take a look at his book: + ** Vision: Images, Signals and Neural Networks: Models of Neural Processing in Visual Perception (Progress in Neural Processing),By: Jeanny Herault, ISBN: 9814273686. WAPI (Tower ID): 113266891. + ** + ** The retina filter includes the research contributions of phd/research collegues from which code has been redrawn by the author : + ** _take a look at the retinacolor.hpp module to discover Brice Chaix de Lavarene color mosaicing/demosaicing and the reference paper: + ** ====> B. Chaix de Lavarene, D. Alleysson, B. Durette, J. Herault (2007). "Efficient demosaicing through recursive filtering", IEEE International Conference on Image Processing ICIP 2007 + ** _take a look at imagelogpolprojection.hpp to discover retina spatial log sampling which originates from Barthelemy Durette phd with Jeanny Herault. A Retina / V1 cortex projection is also proposed and originates from Jeanny's discussions. + ** ====> more informations in the above cited Jeanny Heraults's book. + ** + ** License Agreement + ** For Open Source Computer Vision Library + ** + ** Copyright (C) 2000-2008, Intel Corporation, all rights reserved. + ** Copyright (C) 2008-2011, Willow Garage Inc., all rights reserved. + ** + ** For Human Visual System tools (bioinspired) + ** Copyright (C) 2007-2015, LISTIC Lab, Annecy le Vieux and GIPSA Lab, Grenoble, France, all rights reserved. + ** + ** Third party copyrights are property of their respective owners. + ** + ** Redistribution and use in source and binary forms, with or without modification, + ** are permitted provided that the following conditions are met: + ** + ** * Redistributions of source code must retain the above copyright notice, + ** this list of conditions and the following disclaimer. + ** + ** * Redistributions in binary form must reproduce the above copyright notice, + ** this list of conditions and the following disclaimer in the documentation + ** and/or other materials provided with the distribution. + ** + ** * The name of the copyright holders may not be used to endorse or promote products + ** derived from this software without specific prior written permission. + ** + ** This software is provided by the copyright holders and contributors "as is" and + ** any express or implied warranties, including, but not limited to, the implied + ** warranties of merchantability and fitness for a particular purpose are disclaimed. + ** In no event shall the Intel Corporation or contributors be liable for any direct, + ** indirect, incidental, special, exemplary, or consequential damages + ** (including, but not limited to, procurement of substitute goods or services; + ** loss of use, data, or profits; or business interruption) however caused + ** and on any theory of liability, whether in contract, strict liability, + ** or tort (including negligence or otherwise) arising in any way out of + ** the use of this software, even if advised of the possibility of such damage. + *******************************************************************************/ + +#ifndef __OPENCV_BIOINSPIRED_RETINA_HPP__ +#define __OPENCV_BIOINSPIRED_RETINA_HPP__ + +/** +@file +@date Jul 19, 2011 +@author Alexandre Benoit +*/ + +#include "opencv2/core.hpp" // for all OpenCV core functionalities access, including cv::Exception support + + +namespace cv{ +namespace bioinspired{ + +//! @addtogroup bioinspired +//! @{ + +enum { + RETINA_COLOR_RANDOM, //!< each pixel position is either R, G or B in a random choice + RETINA_COLOR_DIAGONAL,//!< color sampling is RGBRGBRGB..., line 2 BRGBRGBRG..., line 3, GBRGBRGBR... + RETINA_COLOR_BAYER//!< standard bayer sampling +}; + + +/** @brief retina model parameters structure + + For better clarity, check explenations on the comments of methods : setupOPLandIPLParvoChannel and setupIPLMagnoChannel + + Here is the default configuration file of the retina module. It gives results such as the first + retina output shown on the top of this page. + + @code{xml} + <?xml version="1.0"?> + <opencv_storage> + <OPLandIPLparvo> + <colorMode>1</colorMode> + <normaliseOutput>1</normaliseOutput> + <photoreceptorsLocalAdaptationSensitivity>7.5e-01</photoreceptorsLocalAdaptationSensitivity> + <photoreceptorsTemporalConstant>9.0e-01</photoreceptorsTemporalConstant> + <photoreceptorsSpatialConstant>5.3e-01</photoreceptorsSpatialConstant> + <horizontalCellsGain>0.01</horizontalCellsGain> + <hcellsTemporalConstant>0.5</hcellsTemporalConstant> + <hcellsSpatialConstant>7.</hcellsSpatialConstant> + <ganglionCellsSensitivity>7.5e-01</ganglionCellsSensitivity></OPLandIPLparvo> + <IPLmagno> + <normaliseOutput>1</normaliseOutput> + <parasolCells_beta>0.</parasolCells_beta> + <parasolCells_tau>0.</parasolCells_tau> + <parasolCells_k>7.</parasolCells_k> + <amacrinCellsTemporalCutFrequency>2.0e+00</amacrinCellsTemporalCutFrequency> + <V0CompressionParameter>9.5e-01</V0CompressionParameter> + <localAdaptintegration_tau>0.</localAdaptintegration_tau> + <localAdaptintegration_k>7.</localAdaptintegration_k></IPLmagno> + </opencv_storage> + @endcode + + Here is the 'realistic" setup used to obtain the second retina output shown on the top of this page. + + @code{xml} + <?xml version="1.0"?> + <opencv_storage> + <OPLandIPLparvo> + <colorMode>1</colorMode> + <normaliseOutput>1</normaliseOutput> + <photoreceptorsLocalAdaptationSensitivity>8.9e-01</photoreceptorsLocalAdaptationSensitivity> + <photoreceptorsTemporalConstant>9.0e-01</photoreceptorsTemporalConstant> + <photoreceptorsSpatialConstant>5.3e-01</photoreceptorsSpatialConstant> + <horizontalCellsGain>0.3</horizontalCellsGain> + <hcellsTemporalConstant>0.5</hcellsTemporalConstant> + <hcellsSpatialConstant>7.</hcellsSpatialConstant> + <ganglionCellsSensitivity>8.9e-01</ganglionCellsSensitivity></OPLandIPLparvo> + <IPLmagno> + <normaliseOutput>1</normaliseOutput> + <parasolCells_beta>0.</parasolCells_beta> + <parasolCells_tau>0.</parasolCells_tau> + <parasolCells_k>7.</parasolCells_k> + <amacrinCellsTemporalCutFrequency>2.0e+00</amacrinCellsTemporalCutFrequency> + <V0CompressionParameter>9.5e-01</V0CompressionParameter> + <localAdaptintegration_tau>0.</localAdaptintegration_tau> + <localAdaptintegration_k>7.</localAdaptintegration_k></IPLmagno> + </opencv_storage> + @endcode + */ + struct RetinaParameters{ + //! Outer Plexiform Layer (OPL) and Inner Plexiform Layer Parvocellular (IplParvo) parameters + struct OPLandIplParvoParameters{ + OPLandIplParvoParameters():colorMode(true), + normaliseOutput(true), + photoreceptorsLocalAdaptationSensitivity(0.75f), + photoreceptorsTemporalConstant(0.9f), + photoreceptorsSpatialConstant(0.53f), + horizontalCellsGain(0.01f), + hcellsTemporalConstant(0.5f), + hcellsSpatialConstant(7.f), + ganglionCellsSensitivity(0.75f) { } // default setup + bool colorMode, normaliseOutput; + float photoreceptorsLocalAdaptationSensitivity, photoreceptorsTemporalConstant, photoreceptorsSpatialConstant, horizontalCellsGain, hcellsTemporalConstant, hcellsSpatialConstant, ganglionCellsSensitivity; + }; + //! Inner Plexiform Layer Magnocellular channel (IplMagno) + struct IplMagnoParameters{ + IplMagnoParameters(): + normaliseOutput(true), + parasolCells_beta(0.f), + parasolCells_tau(0.f), + parasolCells_k(7.f), + amacrinCellsTemporalCutFrequency(2.0f), + V0CompressionParameter(0.95f), + localAdaptintegration_tau(0.f), + localAdaptintegration_k(7.f) { } // default setup + bool normaliseOutput; + float parasolCells_beta, parasolCells_tau, parasolCells_k, amacrinCellsTemporalCutFrequency, V0CompressionParameter, localAdaptintegration_tau, localAdaptintegration_k; + }; + OPLandIplParvoParameters OPLandIplParvo; + IplMagnoParameters IplMagno; + }; + + + +/** @brief class which allows the Gipsa/Listic Labs model to be used with OpenCV. + +This retina model allows spatio-temporal image processing (applied on still images, video sequences). +As a summary, these are the retina model properties: +- It applies a spectral whithening (mid-frequency details enhancement) +- high frequency spatio-temporal noise reduction +- low frequency luminance to be reduced (luminance range compression) +- local logarithmic luminance compression allows details to be enhanced in low light conditions + +USE : this model can be used basically for spatio-temporal video effects but also for : + _using the getParvo method output matrix : texture analysiswith enhanced signal to noise ratio and enhanced details robust against input images luminance ranges + _using the getMagno method output matrix : motion analysis also with the previously cited properties + +for more information, reer to the following papers : +Benoit A., Caplier A., Durette B., Herault, J., "USING HUMAN VISUAL SYSTEM MODELING FOR BIO-INSPIRED LOW LEVEL IMAGE PROCESSING", Elsevier, Computer Vision and Image Understanding 114 (2010), pp. 758-773, DOI: http://dx.doi.org/10.1016/j.cviu.2010.01.011 +Vision: Images, Signals and Neural Networks: Models of Neural Processing in Visual Perception (Progress in Neural Processing),By: Jeanny Herault, ISBN: 9814273686. WAPI (Tower ID): 113266891. + +The retina filter includes the research contributions of phd/research collegues from which code has been redrawn by the author : +take a look at the retinacolor.hpp module to discover Brice Chaix de Lavarene color mosaicing/demosaicing and the reference paper: +B. Chaix de Lavarene, D. Alleysson, B. Durette, J. Herault (2007). "Efficient demosaicing through recursive filtering", IEEE International Conference on Image Processing ICIP 2007 +take a look at imagelogpolprojection.hpp to discover retina spatial log sampling which originates from Barthelemy Durette phd with Jeanny Herault. A Retina / V1 cortex projection is also proposed and originates from Jeanny's discussions. +more informations in the above cited Jeanny Heraults's book. + */ +class CV_EXPORTS_W Retina : public Algorithm { + +public: + + + /** @brief Retreive retina input buffer size + @return the retina input buffer size + */ + CV_WRAP virtual Size getInputSize()=0; + + /** @brief Retreive retina output buffer size that can be different from the input if a spatial log + transformation is applied + @return the retina output buffer size + */ + CV_WRAP virtual Size getOutputSize()=0; + + /** @brief Try to open an XML retina parameters file to adjust current retina instance setup + + - if the xml file does not exist, then default setup is applied + - warning, Exceptions are thrown if read XML file is not valid + @param retinaParameterFile the parameters filename + @param applyDefaultSetupOnFailure set to true if an error must be thrown on error + + You can retrieve the current parameters structure using the method Retina::getParameters and update + it before running method Retina::setup. + */ + CV_WRAP virtual void setup(String retinaParameterFile="", const bool applyDefaultSetupOnFailure=true)=0; + + /** @overload + @param fs the open Filestorage which contains retina parameters + @param applyDefaultSetupOnFailure set to true if an error must be thrown on error + */ + virtual void setup(cv::FileStorage &fs, const bool applyDefaultSetupOnFailure=true)=0; + + /** @overload + @param newParameters a parameters structures updated with the new target configuration. + */ + virtual void setup(RetinaParameters newParameters)=0; + + /** + @return the current parameters setup + */ + virtual RetinaParameters getParameters()=0; + + /** @brief Outputs a string showing the used parameters setup + @return a string which contains formated parameters information + */ + CV_WRAP virtual const String printSetup()=0; + + /** @brief Write xml/yml formated parameters information + @param fs the filename of the xml file that will be open and writen with formatted parameters + information + */ + CV_WRAP virtual void write( String fs ) const=0; + + /** @overload */ + virtual void write( FileStorage& fs ) const=0; + + /** @brief Setup the OPL and IPL parvo channels (see biologocal model) + + OPL is referred as Outer Plexiform Layer of the retina, it allows the spatio-temporal filtering + which withens the spectrum and reduces spatio-temporal noise while attenuating global luminance + (low frequency energy) IPL parvo is the OPL next processing stage, it refers to a part of the + Inner Plexiform layer of the retina, it allows high contours sensitivity in foveal vision. See + reference papers for more informations. + for more informations, please have a look at the paper Benoit A., Caplier A., Durette B., Herault, J., "USING HUMAN VISUAL SYSTEM MODELING FOR BIO-INSPIRED LOW LEVEL IMAGE PROCESSING", Elsevier, Computer Vision and Image Understanding 114 (2010), pp. 758-773, DOI: http://dx.doi.org/10.1016/j.cviu.2010.01.011 + @param colorMode specifies if (true) color is processed of not (false) to then processing gray + level image + @param normaliseOutput specifies if (true) output is rescaled between 0 and 255 of not (false) + @param photoreceptorsLocalAdaptationSensitivity the photoreceptors sensitivity renage is 0-1 + (more log compression effect when value increases) + @param photoreceptorsTemporalConstant the time constant of the first order low pass filter of + the photoreceptors, use it to cut high temporal frequencies (noise or fast motion), unit is + frames, typical value is 1 frame + @param photoreceptorsSpatialConstant the spatial constant of the first order low pass filter of + the photoreceptors, use it to cut high spatial frequencies (noise or thick contours), unit is + pixels, typical value is 1 pixel + @param horizontalCellsGain gain of the horizontal cells network, if 0, then the mean value of + the output is zero, if the parameter is near 1, then, the luminance is not filtered and is + still reachable at the output, typicall value is 0 + @param HcellsTemporalConstant the time constant of the first order low pass filter of the + horizontal cells, use it to cut low temporal frequencies (local luminance variations), unit is + frames, typical value is 1 frame, as the photoreceptors + @param HcellsSpatialConstant the spatial constant of the first order low pass filter of the + horizontal cells, use it to cut low spatial frequencies (local luminance), unit is pixels, + typical value is 5 pixel, this value is also used for local contrast computing when computing + the local contrast adaptation at the ganglion cells level (Inner Plexiform Layer parvocellular + channel model) + @param ganglionCellsSensitivity the compression strengh of the ganglion cells local adaptation + output, set a value between 0.6 and 1 for best results, a high value increases more the low + value sensitivity... and the output saturates faster, recommended value: 0.7 + */ + CV_WRAP virtual void setupOPLandIPLParvoChannel(const bool colorMode=true, const bool normaliseOutput = true, const float photoreceptorsLocalAdaptationSensitivity=0.7f, const float photoreceptorsTemporalConstant=0.5f, const float photoreceptorsSpatialConstant=0.53f, const float horizontalCellsGain=0.f, const float HcellsTemporalConstant=1.f, const float HcellsSpatialConstant=7.f, const float ganglionCellsSensitivity=0.7f)=0; + + /** @brief Set parameters values for the Inner Plexiform Layer (IPL) magnocellular channel + + this channel processes signals output from OPL processing stage in peripheral vision, it allows + motion information enhancement. It is decorrelated from the details channel. See reference + papers for more details. + + @param normaliseOutput specifies if (true) output is rescaled between 0 and 255 of not (false) + @param parasolCells_beta the low pass filter gain used for local contrast adaptation at the + IPL level of the retina (for ganglion cells local adaptation), typical value is 0 + @param parasolCells_tau the low pass filter time constant used for local contrast adaptation + at the IPL level of the retina (for ganglion cells local adaptation), unit is frame, typical + value is 0 (immediate response) + @param parasolCells_k the low pass filter spatial constant used for local contrast adaptation + at the IPL level of the retina (for ganglion cells local adaptation), unit is pixels, typical + value is 5 + @param amacrinCellsTemporalCutFrequency the time constant of the first order high pass fiter of + the magnocellular way (motion information channel), unit is frames, typical value is 1.2 + @param V0CompressionParameter the compression strengh of the ganglion cells local adaptation + output, set a value between 0.6 and 1 for best results, a high value increases more the low + value sensitivity... and the output saturates faster, recommended value: 0.95 + @param localAdaptintegration_tau specifies the temporal constant of the low pas filter + involved in the computation of the local "motion mean" for the local adaptation computation + @param localAdaptintegration_k specifies the spatial constant of the low pas filter involved + in the computation of the local "motion mean" for the local adaptation computation + */ + CV_WRAP virtual void setupIPLMagnoChannel(const bool normaliseOutput = true, const float parasolCells_beta=0.f, const float parasolCells_tau=0.f, const float parasolCells_k=7.f, const float amacrinCellsTemporalCutFrequency=1.2f, const float V0CompressionParameter=0.95f, const float localAdaptintegration_tau=0.f, const float localAdaptintegration_k=7.f)=0; + + /** @brief Method which allows retina to be applied on an input image, + + after run, encapsulated retina module is ready to deliver its outputs using dedicated + acccessors, see getParvo and getMagno methods + @param inputImage the input Mat image to be processed, can be gray level or BGR coded in any + format (from 8bit to 16bits) + */ + CV_WRAP virtual void run(InputArray inputImage)=0; + + /** @brief Method which processes an image in the aim to correct its luminance correct + backlight problems, enhance details in shadows. + + This method is designed to perform High Dynamic Range image tone mapping (compress \>8bit/pixel + images to 8bit/pixel). This is a simplified version of the Retina Parvocellular model + (simplified version of the run/getParvo methods call) since it does not include the + spatio-temporal filter modelling the Outer Plexiform Layer of the retina that performs spectral + whitening and many other stuff. However, it works great for tone mapping and in a faster way. + + Check the demos and experiments section to see examples and the way to perform tone mapping + using the original retina model and the method. + + @param inputImage the input image to process (should be coded in float format : CV_32F, + CV_32FC1, CV_32F_C3, CV_32F_C4, the 4th channel won't be considered). + @param outputToneMappedImage the output 8bit/channel tone mapped image (CV_8U or CV_8UC3 format). + */ + CV_WRAP virtual void applyFastToneMapping(InputArray inputImage, OutputArray outputToneMappedImage)=0; + + /** @brief Accessor of the details channel of the retina (models foveal vision). + + Warning, getParvoRAW methods return buffers that are not rescaled within range [0;255] while + the non RAW method allows a normalized matrix to be retrieved. + + @param retinaOutput_parvo the output buffer (reallocated if necessary), format can be : + - a Mat, this output is rescaled for standard 8bits image processing use in OpenCV + - RAW methods actually return a 1D matrix (encoding is R1, R2, ... Rn, G1, G2, ..., Gn, B1, + B2, ...Bn), this output is the original retina filter model output, without any + quantification or rescaling. + @see getParvoRAW + */ + CV_WRAP virtual void getParvo(OutputArray retinaOutput_parvo)=0; + + /** @brief Accessor of the details channel of the retina (models foveal vision). + @see getParvo + */ + CV_WRAP virtual void getParvoRAW(OutputArray retinaOutput_parvo)=0; + + /** @brief Accessor of the motion channel of the retina (models peripheral vision). + + Warning, getMagnoRAW methods return buffers that are not rescaled within range [0;255] while + the non RAW method allows a normalized matrix to be retrieved. + @param retinaOutput_magno the output buffer (reallocated if necessary), format can be : + - a Mat, this output is rescaled for standard 8bits image processing use in OpenCV + - RAW methods actually return a 1D matrix (encoding is M1, M2,... Mn), this output is the + original retina filter model output, without any quantification or rescaling. + @see getMagnoRAW + */ + CV_WRAP virtual void getMagno(OutputArray retinaOutput_magno)=0; + + /** @brief Accessor of the motion channel of the retina (models peripheral vision). + @see getMagno + */ + CV_WRAP virtual void getMagnoRAW(OutputArray retinaOutput_magno)=0; + + /** @overload */ + CV_WRAP virtual const Mat getMagnoRAW() const=0; + /** @overload */ + CV_WRAP virtual const Mat getParvoRAW() const=0; + + /** @brief Activate color saturation as the final step of the color demultiplexing process -\> this + saturation is a sigmoide function applied to each channel of the demultiplexed image. + @param saturateColors boolean that activates color saturation (if true) or desactivate (if false) + @param colorSaturationValue the saturation factor : a simple factor applied on the chrominance + buffers + */ + CV_WRAP virtual void setColorSaturation(const bool saturateColors=true, const float colorSaturationValue=4.0f)=0; + + /** @brief Clears all retina buffers + + (equivalent to opening the eyes after a long period of eye close ;o) whatchout the temporal + transition occuring just after this method call. + */ + CV_WRAP virtual void clearBuffers()=0; + + /** @brief Activate/desactivate the Magnocellular pathway processing (motion information extraction), by + default, it is activated + @param activate true if Magnocellular output should be activated, false if not... if activated, + the Magnocellular output can be retrieved using the **getMagno** methods + */ + CV_WRAP virtual void activateMovingContoursProcessing(const bool activate)=0; + + /** @brief Activate/desactivate the Parvocellular pathway processing (contours information extraction), by + default, it is activated + @param activate true if Parvocellular (contours information extraction) output should be + activated, false if not... if activated, the Parvocellular output can be retrieved using the + Retina::getParvo methods + */ + CV_WRAP virtual void activateContoursProcessing(const bool activate)=0; +}; + +//! @relates bioinspired::Retina +//! @{ + +/** @overload */ +CV_EXPORTS_W Ptr<Retina> createRetina(Size inputSize); +/** @brief Constructors from standardized interfaces : retreive a smart pointer to a Retina instance + +@param inputSize the input frame size +@param colorMode the chosen processing mode : with or without color processing +@param colorSamplingMethod specifies which kind of color sampling will be used : +- cv::bioinspired::RETINA_COLOR_RANDOM: each pixel position is either R, G or B in a random choice +- cv::bioinspired::RETINA_COLOR_DIAGONAL: color sampling is RGBRGBRGB..., line 2 BRGBRGBRG..., line 3, GBRGBRGBR... +- cv::bioinspired::RETINA_COLOR_BAYER: standard bayer sampling +@param useRetinaLogSampling activate retina log sampling, if true, the 2 following parameters can +be used +@param reductionFactor only usefull if param useRetinaLogSampling=true, specifies the reduction +factor of the output frame (as the center (fovea) is high resolution and corners can be +underscaled, then a reduction of the output is allowed without precision leak +@param samplingStrenght only usefull if param useRetinaLogSampling=true, specifies the strenght of +the log scale that is applied + */ +CV_EXPORTS_W Ptr<Retina> createRetina(Size inputSize, const bool colorMode, int colorSamplingMethod=RETINA_COLOR_BAYER, const bool useRetinaLogSampling=false, const float reductionFactor=1.0f, const float samplingStrenght=10.0f); + +//! @} + +//! @} + +} +} +#endif /* __OPENCV_BIOINSPIRED_RETINA_HPP__ */ |