// Apply filter on the image
private static void ApplyFilter(IFilter filter, ref Bitmap image)
{
if (filter is IFilterInformation)
{
IFilterInformation filterInfo = (IFilterInformation)filter;
if (!filterInfo.FormatTransalations.ContainsKey(image.PixelFormat))
{
if (filterInfo.FormatTransalations.ContainsKey(PixelFormat.Format24bppRgb))
{
MessageBox.Show("The selected image processing routine may be applied to color image only.",
"Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else
{
MessageBox.Show(
"The selected image processing routine may be applied to grayscale or binary image only.\n\nUse grayscale (and threshold filter if required) before.",
"Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
return;
}
}
try
{
// apply filter to the image
image = filter.Apply(image);
}
catch
{
MessageBox.Show("Error occured applying selected filter to the image", "Error", MessageBoxButtons.OK,
MessageBoxIcon.Error);
}
}
public static void AssertCanApply(
this IFilterInformation filterInfo,
PixelFormat format)
{
Debug.Assert(
filterInfo.FormatTranslations.ContainsKey(format),
string.Format("{0} cannot process an image "
+ "with the provided pixel format. Provided "
+ "format: {1}. Accepted formats: {2}.",
filterInfo.GetType().Name,
format.ToString(),
string.Join(", ", filterInfo.FormatTranslations.Keys)));
}
private static Bitmap ApplyFilter(IFilter filter, Bitmap image)
{
IFilterInformation filterInformation = filter as IFilterInformation;
if (filterInformation != null && !filterInformation.FormatTranslations.ContainsKey(image.PixelFormat))
{
if (filterInformation.FormatTranslations.ContainsKey(PixelFormat.Format24bppRgb))
{
return(null);
}
return(null);
}
return(filter.Apply(image));
}
