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/*
* This file is part of rasdaman community.
*
* Rasdaman community 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 3 of the License, or
* (at your option) any later version.
*
* Rasdaman community 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 rasdaman community. If not, see <http://www.gnu.org/licenses/>.
*
* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 Peter Baumann /
rasdaman GmbH.
*
* For more information please see <http://www.rasdaman.org>
* or contact Peter Baumann via <baumann@rasdaman.com>.
*/
/*************************************************************
*
*
* PURPOSE:
* Example program for computing the avg cell value
* for each image in a given 2-D RGB collection.
*
*
************************************************************/
#include <iostream>
// Linux needs this for template instantiation
#ifdef EARLY_TEMPLATE
#define __EXECUTABLE__
#ifdef __GNUG__
#include "raslib/template_inst.hh"
#endif
#endif
// rasdl generated data type file:
// (contains predefined RGB pixel structure)
#include "basictypes.hh"
int main( int ac, char** av )
{
char rasmgrName[255];
int rasmgrPort;
char baseName[255];
char collName[255];
char userName[255];
char userPass[255];
double sum;
if( ac != 7 )
{
cout << "Usage: avg-cell-red rasmgr_name rasmgr_port base_name collection_name user_name user_passwd" << endl;
return -1;
}
strcpy( rasmgrName, av[1] );
rasmgrPort = strtoul( av[2], NULL, 0);
strcpy( baseName, av[3] );
strcpy( collName, av[4] );
strcpy( userName, av[5] );
strcpy( userPass, av[6] );
r_Database database;
r_Transaction transaction;
r_Ref< r_Set< r_Ref< r_Marray< RGBPixel > > > > image_set;
r_Iterator< r_Ref< r_Marray< RGBPixel > > > iter;
r_Ref< r_Marray< RGBPixel > > image;
r_Range i,j;
long pixelcount;
try
{
database.set_servername( rasmgrName, rasmgrPort );
database.set_useridentification( userName, userPass );
cout << "Opening database " << baseName
<< " on " << rasmgrName << "... " << flush;
database.open( baseName );
cout << "OK" << endl;
cout << "Starting read-only transaction ... " << flush;
transaction.begin( r_Transaction::read_only );
cout << "OK" << endl;
cout << "Looking up collection " << collName << " ..." << flush;
image_set = database.lookup_object( collName );
cout << "OK" << endl;
cout << "Collection contains " << image_set->cardinality()
<< " entries" << endl;
iter = image_set->create_iterator();
for( iter.reset(); iter.not_done(); iter++ )
{
RGBPixel pixel;
image = *iter;
sum = 0.0;
for ( i=image->spatial_domain()[0].low(); i<=image->spatial_domain()[0].high(); i++ )
{
for ( j=image->spatial_domain()[1].low(); j<=image->spatial_domain()[1].high(); j++ )
{
pixel = (*image)[ r_Point(i,j) ];
sum += pixel.red;
}
}
pixelcount =
( image->spatial_domain()[0].high() - image->spatial_domain()[0].low() + 1 )
* ( image->spatial_domain()[1].high() - image->spatial_domain()[1].low() + 1 );
cout << " avg over " << pixelcount
<< " red pixels is "
<< sum / pixelcount
<< endl << flush;
}
cout << "Committing transaction ... " << flush;
transaction.commit();
cout << "OK" << endl;
cout << "Closing database ... " << flush;
database.close();
cout << "OK" << endl;
}
catch( r_Error& errorObj )
{
cerr << errorObj.what() << endl;
return -1;
}
return 0;
}
/*
* end of avg-cell-red.cc
*/
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