Cutting an image to get rounded corners

The previous recipe gave us an edged image. It can be nice to have rounded corners, so let us take a look at how to achieve that.

How to do it...

We will use a few features of the very capable tikz graphics package:

1. Load the tikz package in your preamble:

   \usepackage{tikz}

2. Declare a box for storing the image:

   \newsavebox{\picbox}

3. Define a macro that allows us to use our recipe repeatedly:

   \newcommand{\cutpic}[3]{
     \savebox{\picbox}{\includegraphics[width=#2]{#3}}
     \tikz\node [draw, rounded corners=#1, line width=4pt,
       color=white, minimum width=\wd\picbox,
       minimum height=\ht\picbox, path picture={
         \node at (path picture bounding box.center) {
           \usebox{\picbox}};
       }] {};}

4. Use the new macro within your document to include an image:

   \cutpic{1cm}{8cm}{filename}

5. Compile the document to see the effect:

   

How it works...

After loading the tikz package, we created a box to store the image. We defined a macro; its first task is to store our image...