     t.stop();
     t.report( "Time for all frames " );
 
-#ifndef NDEBUG
+#ifdef SHOW_TIMING
     for( int i=0; i<num_layers; i++ ) {
         DO_TALK(
           time_gauss[i]->report( "time for Gauss " );

{
    int num_layers = _frame.size();

#ifndef NDEBUG
    KeepTime* time_gauss[num_layers];
    KeepTime* time_mag  [num_layers];
    KeepTime* time_hyst [num_layers];

#include "debug_image.h"
#include "cctag/talk.hpp"

#if 1 // #ifndef NDEBUG
#define SHOW_TIMING
#else
#undef  SHOW_TIMING
#endif

using namespace std;

namespace popart
