| AbstractObjectFilter | 
 Ancestor for image object filters. 
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| AddDefaultLabel | 
 For inserting a default label if missing. 
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| AttachMetaData | 
 Attaches the specified meta-data value. 
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| AttachOverlappingMetaData | 
 Attaches meta-data from the stored report
 
  
 
  
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| ClipBoundingBoxes | 
 Ensures that bounding boxes fall within the image boundaries. 
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| KeepEnclosed | 
 Uses the outlines of annotations with the specified label to filter out any objects that aren't enclosed by these. 
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| MakeSquare | 
 Generates a square bounding box around the current center of the bounding box. 
 Discards any polygon data. 
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| MergeOverlaps | 
 Merges overlapping objects into single object. 
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| MergeOverlapsHelper | 
 Helper class for merging object overlaps. 
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| OffsetIndex | 
 Offsets the object index. 
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| PassThrough | 
 Dummy, just returns the incoming object list. 
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| PolygonVertexLengths | 
 Calculates the lengths of the polygon's vertices and stores them in
 the object's meta-data as comma-separated list. 
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| RemoveDuplicatePolygonPoints | 
 Removes duplicate points from polygons, e.g., introduced during scaling. 
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| RemovePolygons | 
 Removes polygon information. 
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| RenameLabels | 
 For renaming labels in the meta-data, stored under a specific key. 
 The rules for renaming are specified: old=new. 
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| Rotate | 
 Rotates the objects using the specified degrees (90 degree increments only). 
 Requires the original image width before the image got rotated in order to rotate the objects correctly. 
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| Scale | 
 Scales the objects. 
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| SimplifyPolygons | 
 Simplifies polygons, i.e., to use fewer points. 
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| SimplifyPolygons.PPoint | 
 Container class for the simplification. 
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| TransformMetaData | 
 Transforms the specified meta-data using the referenced callable actor. 
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| Translate | 
 Translates the objects by the specified X and Y. 
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| UpdateBoundsFromPolygon | 
 If polygon available, updates x//width/height with bounds of polygon. 
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