Broken vertical lines in tables

Question

I've been trying to recreate a table. How do I achieve this table? Especially how do you make the vertical border didn't meet like the way shown in picture?

Answer 1

If you compile this:

\documentclass[12pt]{article}
\usepackage{booktabs}
\begin{document}
\begin{tabular}{c|cccc} \toprule
    Algorithms&\begin{tabular}{c}JPEG\\(QF=50)\end{tabular}&%
    \begin{tabular}{c}Med-Filter\\$7\times7$\end{tabular}&%
    \begin{tabular}{c}Gau-Filter\\$7\times7$\end{tabular}&%
    \begin{tabular}{c}Gau-Noise\\$\sigma=0.01$\end{tabular}\\ \midrule
    Nakamura \textit{et al.} [12]&$29.51\%$&$8.39\%$&$\mathbf{0.00\%}$&$\mathbf{0.00\%}$\\ \midrule
    Primila \textit{et al.} [13]&$38.35\%$&$26.31\%$&$1.19\%$&$22.75\%$\\ \midrule
    Gugelmann \textit{et al.} [15]&$15.76\%$&$8.86\%$&$3.93\%$&$16.14\%$\\ \midrule
    Proposed &$\mathbf{6.42\%}$&$\mathbf{1.18\%}$&$0.68\%$&$3.37\%$\\ \bottomrule
\end{tabular}
\end{document}

then you will get this:

Note that I don't think that those vertical bars look fine.

Answer 2

• used is @José Carlos Santos answer (+1 for retyping table) as OP's MWE
• for table is used tabularray packages
• omitted are all horizontal lines in table body (that table has more "professional" looks)

\documentclass[border=3.1314592]{standalone}
\usepackage{xcolor}
\usepackage{tabularray}
\UseTblrLibrary{siunitx, varwidth}
\usepackage{etoolbox}
\newrobustcmd\B{\DeclareFontSeriesDefault[rm]{bf}{b}%           %
                \bfseries\color{teal}}                          %
\begin{document}
    \begin{tblr}{hline{1,2,Z} = 1pt,
                 colspec={Q[r,m] | *{4}{Q[c,m,si={detect-weight, % <--
                                                  mode=text,     % <--
                                                  table-format=2.2{,%}}]}
                         },
                 measure=vbox
                 }
\SetCell{c} Algorithms

    & {{{JPEG\(QF$=50)$}}}             & {{{Med-Filter\$(7\times7)$}}}
    & {{{Gauss-Filter\$(7\times7)$}}}   & {{{Gauss-Noise\$(\sigma=0.01)$}}}  \
%
Nakamura \textit{et al.} \cite{??}
    &   29.51,%   &    8.39,%   &\B  0.00,%   &\B  0.00,%    \
Primila \textit{et al.} \cite{??} 
    &   38.35,%   &   26.31,%   &    1.19,%   &   22.75,%    \

Gugelmann \textit{et al.}  \cite{??}
    &   15.76,%   &    8.86,%   &    3.93,%   &   16.14,%    \ 
Proposed

    &\B  6.41,%   &\B  1.18,%   &    0.68,%   &   3.37,%    \ 
\end{tblr}
\end{document}

Answer 3

If you actually want to use vertical rules with the (horizontal) rules of booktabs (even though this is not at all in the spirit of booktabs, you can try {NiceTabular} of nicematrix.

\documentclass[12pt]{article}
\usepackage{booktabs}
\usepackage{nicematrix}
\begin{document}
\begin{NiceTabular}{c|cccc} \toprule
\Block{2-1}{Algorithms} & JPEG & Med-Filter & Gau-Filter & Gau-Noise \\
& (QF=50) & $7\times7$ & $7\times7$ & $\sigma=0.01$ \\ \midrule
Nakamura \textit{et al.} [12]&$29.51\%$&$8.39\%$&$\mathbf{0.00\%}$&$\mathbf{0.00\%}$\\ \midrule
Primila \textit{et al.} [13]&$38.35\%$&$26.31\%$&$1.19\%$&$22.75\%$\\ \midrule
Gugelmann \textit{et al.} [15]&$15.76\%$&$8.86\%$&$3.93\%$&$16.14\%$\\ \midrule
Proposed &$\mathbf{6.42\%}$&$\mathbf{1.18\%}$&$0.68\%$&$3.37\%$\\ \bottomrule
\end{NiceTabular}
\end{document}

You need several compilations (because nicematrix uses PGF/Tikz nodes under the hood).