@@ -545,27 +545,19 @@ calcSumm(PatternData *pattern, int x, int y, int sX, int sY)
545545static void
546546calcSignature (PatternData * pattern ,Signature * signature )
547547{
548- int size = PATTERN_SIZE ;
548+ int size = PATTERN_SIZE / 2 ;
549549int i = 0 ;
550550float mult = 1.0f ;
551+
551552while (size > 1 )
552553{
553554size /=2 ;
554- if (i == 0 )
555- {
556- signature -> values [0 ]= mult * calcSumm (pattern ,size ,0 ,size ,size );
557- signature -> values [0 ]= mult * calcSumm (pattern ,0 ,size ,size ,size );
558- signature -> values [0 ]= mult * calcSumm (pattern ,size ,size ,size ,size );
559- i ++ ;
560- }
561- else
562- {
563- signature -> values [i ++ ]= mult * calcSumm (pattern ,size ,0 ,size ,size );
564- signature -> values [i ++ ]= mult * calcSumm (pattern ,0 ,size ,size ,size );
565- signature -> values [i ++ ]= mult * calcSumm (pattern ,size ,size ,size ,size );
566- }
555+ signature -> values [i ++ ]= mult * calcSumm (pattern ,size ,0 ,size ,size );
556+ signature -> values [i ++ ]= mult * calcSumm (pattern ,0 ,size ,size ,size );
557+ signature -> values [i ++ ]= mult * calcSumm (pattern ,size ,size ,size ,size );
567558mult *=2.0f ;
568559}
560+ signature -> values [SIGNATURE_SIZE - 1 ]= pattern -> values [0 ][0 ];
569561}
570562
571563#ifdef DEBUG_INFO