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koffice/chalk/plugins/filters/cimg/kis_cimg_filter.h

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/*
* This file is part of the KDE project
*
* Copyright (c) 2005 Boudewijn Rempt <boud@valdyas.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef _KIS_CIMG_FILTER_H_
#define _KIS_CIMG_FILTER_H_
#include "kis_filter.h"
#include "kis_filter_config_widget.h"
#include "CImg.h"
class KisCImgFilterConfiguration : public KisFilterConfiguration
{
public:
KisCImgFilterConfiguration();
virtual TQString toString();
virtual void fromXML(const TQString & s);
public:
TQ_INT32 nb_iter; // Number of smoothing iterations
double dt; // Time step
double dlength; // Integration step
double dtheta; // Angular step (in degrees)
double sigma; // Structure tensor blurring
double power1; // Diffusion limiter along isophote
double power2; // Diffusion limiter along gradient
double gauss_prec; // Precision of the gaussian function
bool onormalize; // Output image normalization (in [0,255])
bool linear; // Use linear interpolation for integration ?
};
class KisCImgFilter : public KisFilter
{
public:
KisCImgFilter();
public:
virtual void process(KisPaintDeviceSP,KisPaintDeviceSP, KisFilterConfiguration* , const TQRect&);
static inline KisID id() { return KisID("cimg", i18n("Image Restoration (cimg-based)")); };
virtual bool supportsPainting() { return false; }
virtual bool supportsPreview() { return false; }
virtual ColorSpaceIndependence colorSpaceIndependence();
public:
virtual KisFilterConfigWidget * createConfigurationWidget(TQWidget* parent, KisPaintDeviceSP dev);
virtual KisFilterConfiguration * configuration(TQWidget*);
virtual KisFilterConfiguration * configuration() { return new KisCImgFilterConfiguration();};
private:
bool process();
// Compute smoothed structure tensor field G
void compute_smoothed_tensor();
// Compute normalized tensor field sqrt(T) in G
void compute_normalized_tensor();
// Compute LIC's along different angle projections a_\alpha
void compute_LIC(int &counter);
void compute_LIC_back_forward(int x, int y);
void compute_W(float cost, float sint);
// Average all the LIC's
void compute_average_LIC();
// Prepare datas
bool prepare();
bool prepare_restore();
bool prepare_inpaint();
bool prepare_resize();
bool prepare_visuflow();
// Check arguments
bool check_args();
// Clean up memory (CImg datas) to save memory
void cleanup();
private:
unsigned int nb_iter; // Number of smoothing iterations
float dt; // Time step
float dlength; // Integration step
float dtheta; // Angular step (in degrees)
float sigma; // Structure tensor blurring
float power1; // Diffusion limiter along isophote
float power2; // Diffusion limiter along gradient
float gauss_prec; // Precision of the gaussian function
bool onormalize; // Output image normalization (in [0,255])
bool linear; // Use linear interpolation for integration
// internal use
bool restore;
bool inpaint;
bool resize;
const char* visuflow;
cimg_library::CImg<> dest, sum, W;
cimg_library::CImg<> img, img0, flow,G;
cimg_library::CImgl<> eigen;
cimg_library::CImg<unsigned char> mask;
};
#endif