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<h2>
<span class="refentrytitle">imagesave</span>
</h2>
<p>imagesave —
Save a previously created image.
</p>
</div>
<div class="refsect1">
<a id="idm281472924214536"></a>
<h2>Description</h2>
<p>
Save a previously created image. An empty image can be created with <a class="link" href="imagecreate.html" title="imagecreate"><em class="citetitle">imagecreate</em></a> and its pixel RGB values can be set with <a class="link" href="imagesetpixel.html" title="imagesetpixel"><em class="citetitle">imagesetpixel</em></a>. The image will be saved in PNG format.
</p>
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<div class="refsect1">
<a id="idm281472924147224"></a>
<h2>Syntax</h2>
<pre class="synopsis"><span class="command"><strong>imagesave</strong></span> iimagenum, filename</pre>
</div>
<div class="refsect1">
<a id="idm281472924145144"></a>
<h2>Initialization</h2>
<p>
<span class="emphasis"><em>iimagenum</em></span> -- the reference of the image to be save. It should be a value returned by <a class="link" href="imagecreate.html" title="imagecreate"><em class="citetitle">imagecreate</em></a>.
</p>
<p>
<span class="emphasis"><em>filename</em></span> -- The filename to use to save the image.
</p>
</div>
<div class="refsect1">
<a id="idm281472924141544"></a>
<h2>Examples</h2>
<p>
Here is an example of the imagesave opcode. It uses the file <a class="ulink" href="examples/imageopcodes.csd" target="_top"><em class="citetitle">imageopcodes.csd</em></a>.
</p>
<div class="example">
<a id="idm281472924139752"></a>
<p class="title">
<strong>Example 424. Example of the imagesave opcode.</strong>
</p>
<div class="example-contents">
<div class="refsect1">
<a id="idm281472752019496"></a>
<pre class="programlisting">
<span class="nt"><CsoundSynthesizer></span>
<span class="nt"><CsOptions></span>
<span class="c1">; Select audio/midi flags here according to platform</span>
-n <span class="c1">;no sound output</span>
<span class="nt"></CsOptions></span>
<span class="nt"><CsInstruments></span>
<span class="vg">sr</span><span class="o">=</span><span class="mi">48000</span>
<span class="vg">ksmps</span><span class="o">=</span><span class="mi">1</span>
<span class="vg">nchnls</span><span class="o">=</span><span class="mi">2</span>
<span class="c1">; this test .csd copies image.png into a new file 'imageout.png'</span>
gi<span class="n">image1</span> <span class="nb">imageload</span> <span class="s">"image.png"</span>
gi<span class="n">imagew</span><span class="p">,</span> gi<span class="n">imageh</span> <span class="nb">imagesize</span> gi<span class="n">image1</span>
gi<span class="n">image2</span> <span class="nb">imagecreate</span> gi<span class="n">imagew</span><span class="p">,</span>gi<span class="n">imageh</span>
<span class="kd">instr</span> <span class="nf">1</span>
k<span class="n">ndx</span> <span class="o">=</span> <span class="mi">0</span>
k<span class="n">x_</span> <span class="nb">linseg</span> <span class="mi">0</span><span class="p">,</span> <span class="nb">p3</span><span class="p">,</span> <span class="mi">1</span>
<span class="c1">;print imagewidth and imageheigth of image.png</span>
<span class="nb">prints</span> <span class="s">"imagewidth = %f pixels, imageheigth = %f pixels</span><span class="se">\\</span><span class="s">n"</span><span class="p">,</span> gi<span class="n">imagew</span><span class="p">,</span> gi<span class="n">imageh</span>
<span class="nl">myloop</span><span class="p">:</span>
k<span class="n">y_</span> <span class="o">=</span> k<span class="n">ndx</span><span class="o">/</span><span class="p">(</span>gi<span class="n">imageh</span><span class="p">)</span>
k<span class="n">r_</span><span class="p">,</span> k<span class="n">g_</span><span class="p">,</span> k<span class="n">b_</span> <span class="nb">imagegetpixel</span> gi<span class="n">image1</span><span class="p">,</span> k<span class="n">x_</span><span class="p">,</span> k<span class="n">y_</span>
<span class="nb">imagesetpixel</span> gi<span class="n">image2</span><span class="p">,</span> k<span class="n">x_</span><span class="p">,</span> k<span class="n">y_</span><span class="p">,</span> k<span class="n">r_</span><span class="p">,</span> k<span class="n">g_</span><span class="p">,</span> k<span class="n">b_</span>
<span class="k">loop_lt</span> k<span class="n">ndx</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">,</span> gi<span class="n">imageh</span><span class="p">,</span> <span class="nl">myloop</span>
<span class="kd">endin</span>
<span class="kd">instr</span> <span class="nf">2</span>
<span class="nb">imagesave</span> gi<span class="n">image2</span><span class="p">,</span> <span class="s">"imageout.png"</span>
<span class="kd">endin</span>
<span class="kd">instr</span> <span class="nf">3</span>
<span class="nb">imagefree</span> gi<span class="n">image1</span>
<span class="nb">imagefree</span> gi<span class="n">image2</span>
<span class="kd">endin</span>
<span class="nt"></CsInstruments></span>
<span class="nt"><CsScore></span>
<span class="nb">i</span><span class="mi">1</span> <span class="mi">1</span> <span class="mi">1</span>
<span class="nb">i</span><span class="mi">2</span> <span class="mi">2</span> <span class="mi">1</span>
<span class="nb">i</span><span class="mi">3</span> <span class="mi">3</span> <span class="mi">1</span>
<span class="nb">e</span>
<span class="nt"></CsScore></span>
<span class="nt"></CsoundSynthesizer></span>
</pre>
</div>
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</div>
<p><br class="example-break" />
</p>
</div>
<div class="refsect1">
<a id="idm281472924137832"></a>
<h2>See Also</h2>
<p>
<a class="link" href="imageload.html" title="imageload"><em class="citetitle">imageload</em></a>,
<a class="link" href="imagecreate.html" title="imagecreate"><em class="citetitle">imagecreate</em></a>,
<a class="link" href="imagesize.html" title="imagesize"><em class="citetitle">imagesize</em></a>,
<a class="link" href="imagegetpixel.html" title="imagegetpixel"><em class="citetitle">imagegetpixel</em></a>,
<a class="link" href="imagesetpixel.html" title="imagesetpixel"><em class="citetitle">imagesetpixel</em></a>,
<a class="link" href="imagefree.html" title="imagefree"><em class="citetitle">imagefree</em></a>
</p>
</div>
<div class="refsect1">
<a id="idm281472924130920"></a>
<h2>Credits</h2>
<p>
</p>
<table border="0" summary="Simple list" class="simplelist">
<tr>
<td>Author: Cesare Marilungo</td>
</tr>
</table>
<p>
</p>
<p>New in version 5.08</p>
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