

\begin{figure}[t]
  \centering
  \setlength{\tabcolsep}{4pt}
  \renewcommand{\arraystretch}{1.0}

  \begin{tabular}{@{} c c c c @{}}
      & \scriptsize \textbf{(a)} 
      & \scriptsize \textbf{(b)} 
      & \scriptsize \textbf{(c)} \\[4pt]

      \rotatebox{90}{\textbf{ \scriptsize Linear Merge}} &
      \includegraphics[width=0.15\linewidth]{lora_merging/calxirr/fiveceu.56e1e123-bd6dee0a-75e8f729-db723e75-6077d9e7.png_linear.png} &
      \includegraphics[width=0.15\linewidth]{lora_merging/calxhomo/fiveceu.350be132-04f43f44-425ec5b8-23503992-97894859.png_linear.png} &
      \includegraphics[width=0.15\linewidth]{lora_merging/irrxhomo/fiveceu.d1452a15-f93f62e4-22efd83b-1f429dce-732c2062.png_linear.png} \\[6pt]

      \raisebox{0.8\height}{\rotatebox{90}{\scriptsize \textbf{Ours}}} &
      \includegraphics[width=0.15\linewidth]{lora_merging/calxirr/fiveceu.56e1e123-bd6dee0a-75e8f729-db723e75-6077d9e7.png_ortho.png} &
      \includegraphics[width=0.15\linewidth]{lora_merging/calxhomo/fiveceu.350be132-04f43f44-425ec5b8-23503992-97894859.png_ortho.png} &
      \includegraphics[width=0.15\linewidth]{lora_merging/irrxhomo/fiveceu.d1452a15-f93f62e4-22efd83b-1f429dce-732c2062.png_ortho.png} \\
  \end{tabular}

  \caption{Qualitative comparison between Linear Merge and our orthogonal merging across three nodule-attribute configurations: 
    (a) calcified + irregular, 
    (b) calcified + homogeneous, 
    (c) regular + homogeneous.  }
  \label{fig:lora-merge-rotated}
\end{figure}
