0e3cac1a72
all overloads are declared const now, where possible also revised cpp examples and ran them to check see https://github.com/jcupitt/libvips/issues/983
32 lines
470 B
C++
32 lines
470 B
C++
/*
|
|
* compile with:
|
|
*
|
|
* g++ -g -Wall avg.cpp `pkg-config vips-cpp --cflags --libs`
|
|
*
|
|
*/
|
|
|
|
#define DEBUG
|
|
|
|
#include <vips/vips8>
|
|
|
|
using namespace vips;
|
|
|
|
int
|
|
main( int argc, char **argv )
|
|
{
|
|
if( vips_init( argv[0] ) )
|
|
vips_error_exit( NULL );
|
|
|
|
VImage in = VImage::new_from_file( argv[1],
|
|
VImage::option()->set( "access", VIPS_ACCESS_SEQUENTIAL ) );
|
|
double avg;
|
|
|
|
avg = in.avg();
|
|
|
|
printf( "avg = %g\n", avg );
|
|
|
|
vips_shutdown();
|
|
|
|
return( 0 );
|
|
}
|