如下代码所示：
通过\subfigure绘制子图，\centering使图片居中，可以直接在子图中为为图片添加标注，如代码中的{\scriptsize{误差均值}}，该命令表示在子图上面添加标注。有时需要同时在子图的左边也添加竖排标注，但是会出问题。因此我们需要改为按照子图的形式添加标注。

\begin{figure}[h]{\rotatebox{90}{\scriptsize{Arad}}}\centering\subfigure{%\scriptsize{Arad}\begin{minipage}[t]{0.16\textwidth}\centering{\scriptsize{误差均值}}\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_Arad_hsi8_error.png}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\centering{\scriptsize{410nm}}\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_Arad_hsi8_1_error.png}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\centering{\scriptsize{550nm}}\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_Arad_hsi8_15_error.png}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\centering{\scriptsize{620nm}}\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_Arad_hsi8_22_error.png}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\centering{\scriptsize{690nm}}\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_Arad_hsi8_29_error.png}}\end{minipage}\begin{minipage}[t]{0.031\textwidth}%添加colorbar\centering{\scriptsize{  }}\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8error_colorbar_2.png}}\end{minipage}%\begin{minipage}[t]{0.03\textwidth}%\centering%{\footnotesize \scriptsize{690nm}}%\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8error_colorbar.png}}%\end{minipage}}\vspace{-3mm}\rotatebox{90}{\scriptsize{HSCNN}}\centering\subfigure{%\scriptsize{HSCNN\_R}\begin{minipage}[t]{0.16\textwidth}\centering%{\footnotesize \scriptsize{误差均值}}\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_resblock_16_hsi8_error.png}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\centering%{\footnotesize \scriptsize{410nm}}\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_resblock_16_hsi8_1_error.png}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\centering%{\footnotesize \scriptsize{550nm}}\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_resblock_16_hsi8_15_error.png}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\centering%{\footnotesize \scriptsize{620nm}}\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_resblock_16_hsi8_22_error.png}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\centering%{\footnotesize \scriptsize{690nm}}\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_resblock_16_hsi8_29_error.png}}\end{minipage}\begin{minipage}[t]{0.031\textwidth}%添加colorbar\centering\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8error_colorbar_2.png}}\end{minipage}}\vspace{-3mm}{\rotatebox{90}{\scriptsize{RPAN}}}\centering\subfigure{\begin{minipage}[t]{0.16\textwidth}\centering\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_rpanblock_hsi8_error.png}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\centering\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_rpanblock_hsi8_1_error.png}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\centering\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_rpanblock_hsi8_15_error.png}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\centering\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_rpanblock_hsi8_22_error.png}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_rpanblock_hsi8_29_error.png}}\end{minipage}\begin{minipage}[t]{0.031\textwidth}%添加colorbar\centering\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8error_colorbar_2.png}}\end{minipage}}\vspace{-3mm}\rotatebox{90}{\scriptsize{myNet8}}\centering\subfigure{\begin{minipage}[t]{0.16\textwidth}\centering\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_myNet_8_hsi8_error.png}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\centering\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_myNet_8_hsi8_1_error.png}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\centering\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_myNet_8_hsi8_15_error.png}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\centering\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_myNet_8_hsi8_22_error.png}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\centering\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_myNet_8_hsi8_29_error.png}}\end{minipage}\begin{minipage}[t]{0.031\textwidth}%添加colorbar\centering\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8error_colorbar_2.png}}\end{minipage}}\vspace{-3mm}\caption{重建HSI与实际HSI之间的误差图} \label{fig_hsi_G_R}
\end{figure}

排版出错的问题，如下：

因为在添加上表的同时又添加了左标注，造成标注和colorbar串行，而除了第一行子图出错外其他的均正常显示。这个表明在我们绘制子图时，同一行子图的格斯要一致。我们可以以绘制子图的形式绘制上标注。如图下所示：

\begin{figure}[h]\centering\subfigure{\begin{minipage}[t]{0.16\textwidth}\centering{\scriptsize{误差均值}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\centering{\scriptsize{410nm}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\centering{\scriptsize{550nm}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\centering{\scriptsize{620nm}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\centering{\scriptsize{690nm}}\end{minipage}\begin{minipage}[t]{0.031\textwidth}%添加colorbar\centering{\scriptsize{  }}\end{minipage}}\vspace{-3mm}{\rotatebox{90}{\scriptsize{Arad}}}\centering\subfigure{\begin{minipage}[t]{0.16\textwidth}\centering\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_Arad_hsi8_error.png}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\centering\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_Arad_hsi8_1_error.png}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\centering\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_Arad_hsi8_15_error.png}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\centering\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_Arad_hsi8_22_error.png}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\centering\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_Arad_hsi8_29_error.png}}\end{minipage}\begin{minipage}[t]{0.031\textwidth}%添加colorbar\centering\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8error_colorbar_2.png}}\end{minipage}}\vspace{-3mm}\rotatebox{90}{\scriptsize{HSCNN}}\centering\subfigure{%\scriptsize{HSCNN\_R}\begin{minipage}[t]{0.16\textwidth}\centering%{\footnotesize \scriptsize{误差均值}}\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_resblock_16_hsi8_error.png}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\centering%{\footnotesize \scriptsize{410nm}}\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_resblock_16_hsi8_1_error.png}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\centering%{\footnotesize \scriptsize{550nm}}\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_resblock_16_hsi8_15_error.png}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\centering%{\footnotesize \scriptsize{620nm}}\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_resblock_16_hsi8_22_error.png}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\centering%{\footnotesize \scriptsize{690nm}}\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_resblock_16_hsi8_29_error.png}}\end{minipage}\begin{minipage}[t]{0.031\textwidth}%添加colorbar\centering\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8error_colorbar_2.png}}\end{minipage}}\vspace{-3mm}{\rotatebox{90}{\scriptsize{RPAN}}}\centering\subfigure{\begin{minipage}[t]{0.16\textwidth}\centering\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_rpanblock_hsi8_error.png}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\centering\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_rpanblock_hsi8_1_error.png}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\centering\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_rpanblock_hsi8_15_error.png}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\centering\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_rpanblock_hsi8_22_error.png}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_rpanblock_hsi8_29_error.png}}\end{minipage}\begin{minipage}[t]{0.031\textwidth}%添加colorbar\centering\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8error_colorbar_2.png}}\end{minipage}}\vspace{-3mm}\rotatebox{90}{\scriptsize{myNet8}}\centering\subfigure{\begin{minipage}[t]{0.16\textwidth}\centering\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_myNet_8_hsi8_error.png}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\centering\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_myNet_8_hsi8_1_error.png}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\centering\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_myNet_8_hsi8_15_error.png}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\centering\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_myNet_8_hsi8_22_error.png}}\end{minipage}\begin{minipage}[t]{0.16\textwidth}\centering\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8_myNet_8_hsi8_29_error.png}}\end{minipage}\begin{minipage}[t]{0.031\textwidth}%添加colorbar\centering\raisebox{-0.15cm}{\includegraphics[width=1\textwidth]{figure/8error_picture/8error_colorbar_2.png}}\end{minipage}}\vspace{-3mm}\caption{重建HSI与实际HSI之间的误差图} \label{fig_hsi_G_R}
\end{figure}

如上所示，解决串行问题。
需要额外表明的是：在同一行的子图中，所有图的宽度之和大于行宽的时候，图片也会自动换行显示，因此在图片大小分配时也要额外注意。