<tool id="filter_contour" name="Filter - Contour" version="1.0.2">

	<description>Apply a contour filter on image.</description>
	
	<command interpreter="python" >
		#if (str($input.ext) == 'jpg'):
			pil_filter.py $input $output contour jpeg
        #else:
			pil_filter.py $input $output contour ${input.ext}
		#end if 
  	</command>

	<inputs>
		<param name="input" type="data" format="png,jpg,tif,zip" label="Input image" help="Original RGB or grayscale image." />
	</inputs>

	<outputs>
		<data format="input" name="output" metadata_source="input" label="Contour on ${input.display_name}"/>
	</outputs>
	
	<help>
		Apply a sharpen filter on the image. 
  	</help>

  	<tests>
  		<test>
  			<param name="input" value="images/sydney.jpg" />
  			<output name="output" file="images/sydney-contour.jpg" />
  		</test>
  	</tests>

</tool>