HOW TO: Convert LEADTOOLS' AnnObjects to/from TIFF Tag Wang Annotations

#1 Posted : Monday, September 10, 2018 12:51:52 PM(UTC)

Anthony Northrup

Groups: Registered, Tech Support, Administrators
Posts: 199

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The LEADTOOLS v20 SDK supports both importing from and exporting to TIFF tag Wang annotations. For further information about this support, refer to the following page:
https://www.leadtools.com/sdk/annotation

TIFF Tag Wang Annotations to LEADTOOLS' AnnObjects: (loading from TIFF tags)
Loading is extremely straight forward, and can be done using the AnnCodecs.LoadAll method. Below is all you'll need:

Code:


static AnnContainer[] WangTagToLEAD(string tifFile)
{
	AnnCodecs annCodecs = new AnnCodecs();
	return annCodecs.LoadAll(tifFile);
}

LEADTOOLS' AnnObjects to TIFF Tag Wang Annotations: (saving to TIFF tags)
Saving is a two step process. You must first generate the tag, a RasterTagMetadata object, using the AnnCodecs.SaveToTag method. Next, for write each tag to a file using the RasterCodecs.WriteTag method:

Code:


static void LEADToWangTag(IEnumerable<AnnContainer> containers, string tifFile)
{
	AnnCodecs annCodecs = new AnnCodecs();
	int page = 1;
	using (RasterCodecs rasterCodecs = new RasterCodecs())
		foreach (AnnContainer container in containers)
		{
			RasterTagMetadata tag = annCodecs.SaveToTag(container, page, true);
			rasterCodecs.WriteTag(tifFile, page, tag);
			page++;
		}
}

Anthony Northrup
Developer Support Engineer
LEAD Technologies, Inc.


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HOW TO: Convert LEADTOOLS' AnnObjects to/from TIFF Tag Wang Annotations