<!DOCTYPE sect2 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
               "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
                <!ENTITY % darktable_dtd SYSTEM "../../dtd/darktable.dtd">
                %darktable_dtd;
                ]>
<sect2 status="final" id="snapshots">

  <title>Snapshots</title>

  <indexterm>
    <primary>darkroom panels</primary>
    <secondary>snapshots</secondary>
  </indexterm>

  <indexterm>
    <primary>snapshots</primary>
  </indexterm>

  <informaltable frame="none">
    <tgroup cols="2" colsep="0" rowsep="0">
      <colspec colwidth="6*"/>
      <colspec colwidth="4*"/>
      <tbody>
        <row>
          <entry>
            You can take snapshots of images as you process them. A snapshot is stored as a
            bitmap of the current center view and is kept as long as you stay in the darkroom. A
            snapshot can then be selected and overlayed in the current center view to help you
            with a side by side comparison (left: snapshot, right: active) when you are tuning
            parameters of a module. This can also be combined with history (see
            <xref linkend="history"/>) to compare the snapshot against different stages of
            development.
          </entry>
          <entry>
            <graphic fileref="darkroom/images/panel_snapshots.png" scalefit="1" width="80%" align="center" />
          </entry>
        </row>
      </tbody>
    </tgroup>
  </informaltable>

  <para>
    You can control the split view by moving the splitline back and forth. If you hover with the
    mouse over the splitline, a small rotation icon will appear on the center of the line. Click
    it to change between vertical and horizontal split view.
  </para>

</sect2>