Added OptimiseDisplay module.

modules/CMakeLists.txt

@@ -33,6 +33,7 @@ ADD_MODULE( FrameCrop "FrameCrop" )
 ADD_MODULE( LumaAverage "LumaAverage" )
 ADD_MODULE( WeightedPSNR "WeightedPSNR" )
 ADD_MODULE( HEVCIntraPrediction "HEVCIntraPrediction" )
+ADD_MODULE( OptimiseDisplay "OptimiseDisplay" )
 
 ADD_MODULE_USE_OPENCV( MeasureOpticalFlowDualTVL1 "MeasureOpticalFlowDualTVL1" VERSION 2.4.13.0 MODULES video optflow )
 ADD_MODULE_USE_OPENCV( DisparityStereoBM "DisparityStereoBM" VERSION 2.4.13.0 MODULES calib3d )

modules/OptimiseDisplay.cpp

@@ -0,0 +1,111 @@
+/*    This file is a part of Calyp project
+ *    Copyright (C) 2014-2019  by Joao Carreira   (jfmcarreira@gmail.com)
+ *                                Joao Santos     (joaompssantos@gmail.com)
+ *                                Luis Lucas      (luisfrlucas@gmail.com)
+ *
+ *    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.
+ */
+
+/**
+ * \file     OptimiseDisplay.cpp
+ * \brief    Optimises the display of images with sparse histograms
+ */
+
+#include "OptimiseDisplay.h"
+
+#include <cmath>
+
+OptimiseDisplay::OptimiseDisplay()
+{
+  /* Module Definition */
+  m_iModuleAPI = CLP_MODULE_API_2;  // Use API version 2 (recommended).
+  // See this example for details on the functions prototype
+  m_iModuleType = CLP_FRAME_PROCESSING_MODULE;          // Apply module to the frames or to
+                                                        // the whole sequence.
+  m_pchModuleCategory = "Conversions";                  // Category (sub-menu)
+  m_pchModuleName = "OptimiseDisplay";                  // Name (no spaces)
+  m_pchModuleLongName = "Optimise Display";             // Long Name
+  m_pchModuleTooltip = "Scales the display of images "  // Description
+                       "for better visualization of small differences";
+  m_uiNumberOfFrames = 1;                                   // Number of frames required
+  m_uiModuleRequirements = CLP_MODULE_REQUIRES_NEW_WINDOW;  // Module requirements
+                                                            // (check
+                                                            // CalypModulesIf.h).
+                                                            // Several requirements should be "or" between each others.
+  m_pcOptimisedFrame = NULL;
+}
+
+bool OptimiseDisplay::create( std::vector<CalypFrame*> apcFrameList )
+{
+  _BASIC_MODULE_API_2_CHECK_
+
+  for( unsigned int i = 1; i < apcFrameList.size(); i++ )
+    if( !apcFrameList[i]->haveSameFmt( apcFrameList[0], CalypFrame::MATCH_COLOR_SPACE_IGNORE_GRAY | CalypFrame::MATCH_COLOR_SPACE | CalypFrame::MATCH_RESOLUTION | CalypFrame::MATCH_BITS ) )
+      return false;
+
+  m_pcOptimisedFrame = new CalypFrame( apcFrameList[0]->getWidth(), apcFrameList[0]->getHeight(), CLP_LUMA, 16 );
+  m_pcOptimisedFrame->reset();
+
+  return true;
+}
+
+CalypFrame* OptimiseDisplay::process( std::vector<CalypFrame*> apcFrameList )
+{
+  unsigned int numValues = (int)pow( 2, apcFrameList[0]->getBitsPel() ), scale, usedValues = 0;
+  int* lookUpTable = (int*)malloc( sizeof( int ) * numValues );
+  const ClpPel* pInput1PelYUV = apcFrameList[0]->getPelBufferYUV()[0][0];
+  ClpPel* pOutputPelYUV = m_pcOptimisedFrame->getPelBufferYUV()[0][0];
+
+  apcFrameList[0]->calcHistogram();
+  m_pcOptimisedFrame->reset();
+
+  for( unsigned int ch = 0; ch < apcFrameList[0]->getNumberChannels(); ch++ )
+  {
+    for( unsigned int b = 0; b < 1u << apcFrameList[0]->getBitsPel(); b++ )
+    {
+      if( apcFrameList[0]->getHistogramValue( ch, b ) != 0 )
+      {
+        lookUpTable[b] = usedValues;
+        usedValues++;
+      }
+      else
+      {
+        lookUpTable[b] = -1;
+      }
+    }
+
+    scale = 65536 / usedValues;
+    usedValues = 0;
+
+    for( unsigned int y = 0; y < m_pcOptimisedFrame->getHeight( ch ); y++ )
+    {
+      for( unsigned int x = 0; x < m_pcOptimisedFrame->getWidth( ch ); x++ )
+      {
+        *pOutputPelYUV++ = lookUpTable[*pInput1PelYUV++] * scale;
+      }
+    }
+  }
+
+  free( lookUpTable );
+
+  return m_pcOptimisedFrame;
+}
+
+void OptimiseDisplay::destroy()
+{
+  if( m_pcOptimisedFrame )
+    delete m_pcOptimisedFrame;
+  m_pcOptimisedFrame = NULL;
+}

modules/OptimiseDisplay.h

@@ -0,0 +1,47 @@
+/*    This file is a part of Calyp project
+ *    Copyright (C) 2014-2019  by Joao Carreira   (jfmcarreira@gmail.com)
+ *                                Joao Santos     (joaompssantos@gmail.com)
+ *                                Luis Lucas      (luisfrlucas@gmail.com)
+ *
+ *    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.
+ */
+
+/**
+ * \file     OptimiseDisplay.h
+ * \brief    Optimises the display of images with sparse histograms
+ */
+
+#ifndef __OPTIMISEDISPLAY_H__
+#define __OPTIMISEDISPLAY_H__
+
+// CalypLib
+#include "lib/CalypModuleIf.h"
+
+class OptimiseDisplay : public CalypModuleIf
+{
+  REGISTER_CLASS_FACTORY( OptimiseDisplay )
+
+private:
+  CalypFrame* m_pcOptimisedFrame;
+
+public:
+  OptimiseDisplay();
+  virtual ~OptimiseDisplay() {}
+  bool create( std::vector<CalypFrame*> apcFrameList );
+  CalypFrame* process( std::vector<CalypFrame*> apcFrameList );
+  void destroy();
+};
+
+#endif  // __OPTIMISEDISPLAY_H__