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I have a photograph that I'm loading into my LaTeX document.

I'd like the photograph to have rounded corners and no visible border.

I'd prefer not to edit the original photograph.

Any thoughts on how to do this?

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3 Answers 3

One way would be to use tikz to create a node with the image, and draw a rectangle with rounded corners using white color to clip the image. Here is the original image and one with the white rectangle drawn over it:

enter image description here

Notes:

  • The value of \ClipSep defined the amount of clipping so this can be adjusted as desired.

Code:

\documentclass{article}
\usepackage{tikz}
\usepackage{graphicx}

\newcommand*{\ClipSep}{0.4cm}%

\begin{document}
\includegraphics[width=5.0cm]{images/EiffelTall.jpg}
%
\begin{tikzpicture}
\node [inner sep=0pt] at (0,0) {\includegraphics[width=5.0cm]{images/EiffelTall.jpg}};
\draw [white, rounded corners=\ClipSep, line width=\ClipSep] 
    (current bounding box.north west) -- 
    (current bounding box.north east) --
    (current bounding box.south east) --
    (current bounding box.south west) -- cycle
    ;
\end{tikzpicture}
\end{document}
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If you'd want to put this image with rounded corners in a fixed width environment (at the margin, for example), and so the effective image width was exactly \linewidth... how could that be achieved? I mean, with your code the image width is the actual original width plus the one of the white tikz rectangle. –  Pablo B. 12 hours ago
    
@PabloB.: Not sure I fully understand, but I think what you want is \noindent before the \begin{tikzpicture}, and use \includegraphics[width=\linewidth,keepaspectratio]. If that does not solve your issue, I would suggest you post a new question with a MWE including \documentclass and the appropriate packages that sets up the problem. –  Peter Grill 12 hours ago
    
The thing is that the white rectangle adds extra width to the original image, so in order to get the real width, you'd need to do something similar to \includegraphics[width=\myfactor*\linewidth,keepaspectratio] notice myfactor correction. Should I post a new question? –  Pablo B. 12 hours ago
    
@PabloB.: Yes you should post a new question as it is really not related to rounded corners. –  Peter Grill 10 hours ago

Another possibility if you want to fix the dimensions of the pictures :

\documentclass{article}
\usepackage{tikz}
\usepackage{graphicx}

\begin{document}
\begin{tikzpicture} 

\begin{scope}
    \clip [rounded corners=.5cm] (0,0) rectangle coordinate (centerpoint) (5,7.5cm); 
    \node [inner sep=0pt] at (centerpoint) {\includegraphics[width=6.0cm]{EiffelTall.jpg}}; 
\end{scope}

\begin{scope}[xshift=7cm]
    \clip [rounded corners=.5cm] (0,0) rectangle coordinate (centerpoint) ++(5cm,7.5cm); 
    \node [inner sep=0pt] at (centerpoint) {\includegraphics[width=10.0cm]{EiffelTall.jpg}};
\end{scope}

\end{tikzpicture}
\end{document} 

enter image description here

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I borrowed an image from Herbert's answer without his permission.

User defined data:

\def\M{3}% columns
\def\N{3}% rows
\def\scale{1}% scale
\def\filename{herbert}% filename

% Specify the cropping area.
\def\L{-2}
\def\B{-1.5}
\def\R{2}
\def\T{3}

Steps:

  1. Specify the number of columns and rows. The greater values, the more accurate coordinates. Avoid changing these values after completing the 3rd step, unless you are happy to redo the 3rd step.
  2. Specify the scaling factor. It does not depend on other steps.
  3. Specify the cropping area. You might need a trial and error approach to find it.
  4. Compile the following code with either xelatex or latex-dvips-ps2pdf. See the result, if the cropping region does not suit your requirement, do the 3rd and 4th again.

Hopefully, the given comments in the code are self-explanatory.

\documentclass[pstricks,border=12pt]{standalone}

\def\M{3}% columns
\def\N{3}% rows
\def\scale{1}% scale
\def\filename{herbert}% filename


\usepackage{graphicx}
\newsavebox\IBox
\savebox\IBox{\includegraphics[scale=\scale]{\filename}}


\usepackage{pstricks}
\psset
{
  xunit=0.5\dimexpr\wd\IBox/\M\relax,
  yunit=0.5\dimexpr\ht\IBox/\N\relax,
}



\begin{document}

% The following figure shows an image with a grid enabled.
% Use the grid to find the cropping area.
\begin{pspicture}[showgrid=true](-\M,-\N)(\M,\N)
    \rput(0,0){\usebox\IBox}
\end{pspicture}


% Specify the cropping area.

\def\L{-2}
\def\B{-1.5}
\def\R{2}
\def\T{3}

\begin{pspicture}[showgrid=false](\L,\B)(\R,\T)
    \begin{psclip}{\psframe[linestyle=none,framearc=0.5,dimen=middle](\L,\B)(\R,\T)}
    \rput(0,0){\usebox\IBox}
    \end{psclip}
\end{pspicture}
\end{document}

Output:

Original image with a grid.

enter image description here

Cropped image.

enter image description here

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