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/*M///////////////////////////////////////////////////////////////////////////////////////
//
// 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.
//
//
// License Agreement
// For Open Source Computer Vision Library
//
// Copyright (C) 2014, OpenCV Foundation, 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:
//
// * Redistribution's of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// * Redistribution's 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.
//
//M*/
#include "precomp.hpp"
#include "CmShow.hpp"
#include "opencv2/core.hpp"
#include <opencv2/highgui.hpp>
typedef std::pair<int, int> CostiIdx;
namespace cv
{
namespace saliency
{
Mat CmShow::HistBins( CMat& color3f, CMat& val, CStr& title, bool descendShow, CMat &with )
{
// Prepare data
int H = 300, spaceH = 6, barH = 10, n = color3f.cols;
CV_Assert( color3f.size() == val.size() && color3f.rows == 1 );
Mat binVal1i, binColor3b, width1i;
if( with.size() == val.size() )
with.convertTo( width1i, CV_32S, 400 / sum( with ).val[0] ); // Default shown width
else
width1i = Mat( 1, n, CV_32S, Scalar( 10 ) ); // Default bin width = 10
int W = cvRound( sum( width1i ).val[0] );
color3f.convertTo( binColor3b, CV_8UC3, 255 );
double maxVal, minVal;
minMaxLoc( val, &minVal, &maxVal );
printf( "%g\n", H / max( maxVal, -minVal ) );
val.convertTo( binVal1i, CV_32S, 20000 );
Size szShow( W, H + spaceH + barH );
szShow.height += minVal < 0 && !descendShow ? H + spaceH : 0;
Mat showImg3b( szShow, CV_8UC3, Scalar( 255, 255, 255 ) );
int* binH = (int*) ( binVal1i.data );
Vec3b* binColor = (Vec3b*) ( binColor3b.data );
int* binW = (int*) ( width1i.data );
std::vector<CostiIdx> costIdx( n );
if( descendShow )
{
for ( int i = 0; i < n; i++ )
costIdx[i] = std::make_pair( binH[i], i );
sort( costIdx.begin(), costIdx.end(), std::greater<CostiIdx>() );
}
// Show image
for ( int i = 0, x = 0; i < n; i++ )
{
int idx = descendShow ? costIdx[i].second : i;
int h = descendShow ? abs( binH[idx] ) : binH[idx];
Scalar color( binColor[idx] );
Rect reg( x, H + spaceH, binW[idx], barH );
showImg3b( reg ) = color; // Draw bar
rectangle( showImg3b, reg, Scalar( 0 ) );
reg.height = abs( h );
reg.y = h >= 0 ? H - h : H + 2 * spaceH + barH;
showImg3b( reg ) = color;
rectangle( showImg3b, reg, Scalar( 0 ) );
x += binW[idx];
}
imshow( String( title.c_str() ), showImg3b );
return showImg3b;
}
} // namespace saliency
} // namespace cv