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. |
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 |
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 |
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 |