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revision 1.151 by jvk, Sun May 4 22:24:53 2003 UTC revision 1.152 by jvk, Mon May 5 07:16:46 2003 UTC
# Line 991  in PC systems. Line 991  in PC systems.
991  %for linear (XXX: usually around gamma 2) RGB reproduction.  %for linear (XXX: usually around gamma 2) RGB reproduction.
992  For each background,  For each background,
993  we use colors from {\em both} the dark and light end of the  we use colors from {\em both} the dark and light end of the
994  80-100 range in order to create some contrast.  80--100 range in order to create some contrast.
995  This makes the shapes in the texture apparent,  This makes the shapes in the texture apparent,
996  and avoids the unpleasant, blurry appearance of images with only  and avoids the unpleasant, blurry appearance of images with only
997  chroma changes in colors.  chroma changes in colors.
# Line 1472  The time for answers was not limited. Line 1472  The time for answers was not limited.
1472  \subsubsection{Results}  \subsubsection{Results}
1473    
1474  \begin{table}  \begin{table}
 \def\numres#1#2{#1 (#2s)}%  
 \begin{center}  
 \begin{tabular}{l|cc|cc}  
       & \multicolumn{2}{c|}{\sc textures}  & \multicolumn{2}{c}{\sc colors} \\  
       & correct  & incorrect & correct & incorrect \\  
 \hline  
 seen   & \numres{72}{2.6} & \numres{28}{5.5} & \numres{71}{2.8} & \numres{29}{4.1} \\  
 not seen   & \numres{84}{3.0} & \numres{16}{5.6} & \numres{43}{3.4} & \numres{57}{4.0} \\  
 \hline  
 total & \numres{78}{2.8} & \numres{22}{5.5} & \numres{57}{3.1} & \numres{43}{4.1}  
 \end{tabular}  
 \end{center}  
1475  \caption{  \caption{
1476  \label{tableresults}  \label{tableresults}
1477  Results of a recognition experiment with 15 previously seen  Results of a recognition experiment with 15 previously seen
# Line 1496  This shows that the textures are quite r Line 1484  This shows that the textures are quite r
1484  one  one
1485  previous viewing.  previous viewing.
1486  }  }
1487    \def\numres#1#2{#1 (#2s)}%
1488    \begin{center}
1489    \begin{tabular}{@{\hspace{4pt}}l|c@{\hspace{8pt}}c|c@{\hspace{8pt}}c@{\hspace{4pt}}}
1490          & \multicolumn{2}{c|}{\sc textures}  & \multicolumn{2}{c}{\sc colors} \\
1491          & correct  & incorrect & correct & incorrect \\
1492    \hline
1493    seen   & \numres{72}{2.6} & \numres{28}{5.5} & \numres{71}{2.8} & \numres{29}{4.1} \\
1494    not seen   & \numres{84}{3.0} & \numres{16}{5.6} & \numres{43}{3.4} & \numres{57}{4.0} \\
1495    \hline
1496    total & \numres{78}{2.8} & \numres{22}{5.5} & \numres{57}{3.1} & \numres{43}{4.1}
1497    \end{tabular}
1498    \end{center}
1499  \end{table}  \end{table}
1500    
1501  %80, 53 fail to bring out the results correctly. Should  %80, 53 fail to bring out the results correctly. Should
# Line 1503  previous viewing. Line 1503  previous viewing.
1503  %was basically guessing!!!  %was basically guessing!!!
1504    
1505  The results are summarized in Table~\ref{tableresults}.  The results are summarized in Table~\ref{tableresults}.
1506  A repeated measures analysis of variance indicates that  %A repeated measures
1507    An
1508    analysis of variance indicates that
1509  the average recognition performance is significantly better  the average recognition performance is significantly better
1510  for the textures than for the solid colors [F(1,4) = 19.0, p = .012].  for the textures than for the solid colors [F(1,4) = 19.0, p = .012].
1511  %The recognition of solid colors was only almost statistically significantly  %The recognition of solid colors was only almost statistically significantly

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