<chapter id="filmgrain">
<chapterinfo>

<title
>Filmgrain</title>

<authorgroup>
<author
><firstname
>Gerhard</firstname
> <surname
>Kulzer</surname
> <affiliation
> <address
><email
>gerhard at kulzer.net</email
></address>
</affiliation>
</author>
</authorgroup
> <date
>2004-10-14</date
> <releaseinfo
>0.7.0</releaseinfo
> <abstract
> <para
>The Digikam image plugin 'Filmgrain' reproduces traditional film grain techniques of high speed films. </para>
</abstract>

<keywordset>
<keyword
>KDE</keyword>
<keyword
>Digikam</keyword>
</keywordset>

</chapterinfo>

<title
>Inleiding</title>

<para
>The Digikam image plugin <quote
>Filmgrain</quote
> is an easy tool to produce film grain on your images as known from classical high speed film material as, for example, the famous B/W KodaK Trx-X. In order to increase film sensitivity, manufacturers employed larger silver grains in the photo emulsion. The film grain effect gives your shot a particular mood or seems to transport it in time. The treated image acquires a timeless atmosphere, detached from every day life. If you want that gritty, art-house, street-photography grainy film look, especially in monochromatic photos, use this plugin . </para>

<sect1 id="using-plugin-filmgrain">
<title
>Using the plugin</title>

<para
>There is a slider calibrated in ISO-sensitivity to control the grain intensity and granularity. The default is set to ISO-800, although higher values are often required. If you still want more grain, apply the filter several times. </para>

</sect1>

<sect1 id="inaction-plugin-filmgrain">
<title
>The plugin in action</title>

<para
>This is an example of the film grain effect applied on a black and white image. The original image is (1) and the corrected image is (2). The film sensibility used for simulate the film graininess is ISO-1600. </para>

<screenshot>
<mediaobject>
<imageobject>
<imagedata fileref="filmgrainpreview.png" format="PNG"/>
</imageobject>
<textobject>
<phrase
>Filmgrain image effect preview</phrase>
</textobject>
</mediaobject>
</screenshot>

</sect1>

</chapter>

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