/// <summary>
/// Converts the provided Xml back into the appropriate parameter
/// object for the algorithm
/// </summary>
/// <param name="parameterXml">The <see cref="XElement"/> describing the properties
/// within the object.</param>
/// <returns>The appropriate object used to describe the parameters
/// for the process.</returns>
public ICloneable CreateObject(XElement parameterXml)
{
if (parameterXml == null)
{
return(GammaProperties.Default);
}
else
{
GammaProperties p = new GammaProperties();
_populateProperties(parameterXml, p);
return(p);
}
}
/// <summary>
/// Converts the parameter object provided by the
/// <see cref="AlgorithmDefinition"/> containing the properties
/// to persist.
/// </summary>
/// <param name="parameterObject">The value of the algorithms
/// parameter object</param>
/// <returns>The <see cref="XElement"/> describing the properties
/// within the object.</returns>
public XElement CreateXml(ICloneable parameterObject)
{
if (parameterObject is GammaProperties == false)
{
return(new XElement("properties"));
}
GammaProperties p = parameterObject as GammaProperties;
return(new XElement("properties",
new XElement("property",
new XAttribute("name", "gamma"),
new XAttribute("value", p.Gamma))));
}
/// <summary>
/// Executes the algorithm represented by this <see cref="AlgorithmPlugin"/>.
/// </summary>
/// <param name="parameterObject">An object of the type provided by the
/// <see cref="AlgorithmAttribute"/> describing the properties used by this
/// <see cref="AlgorithmPlugin"/>.</param>
/// <exception cref="AlgorithmException">an internal exception has occured. This
/// is accessed through the inner exception property.</exception>
public override void Run(object parameterObject)
{
if (parameterObject is GammaProperties == false)
{
throw new AlgorithmException("Provided object not a GammaProperties instance");
}
GammaProperties p = parameterObject as GammaProperties;
Bitmap bmp = new Bitmap(Input);
Image <Rgb, byte> img = new Image <Rgb, byte>(bmp);
img._GammaCorrect(p.Gamma);
Output = img.Bitmap;
}
/// <summary>
/// Populates the properties object using the provided xml
/// </summary>
/// <param name="parameterXml">The Xml to populate the properties
/// with</param>
/// <param name="p">The properties object to populate</param>
private void _populateProperties(XElement parameterXml, GammaProperties p)
{
var props = parameterXml.Descendants("property");
if (props.Any() == false)
{
return;
}
var gammaProp = (from prop in props
let nameAttr = prop.Attribute("name")
where nameAttr != null &&
nameAttr.Value == "gamma" &&
prop.Attribute("value") != null
select prop).FirstOrDefault();
if (gammaProp != null)
{
double gamma = p.Gamma;
double.TryParse(gammaProp.Attribute("value").Value, out gamma);
p.Gamma = gamma;
}
}