Research Article
Ratsnake: A Versatile Image Annotation Tool with Application to Computer-Aided Diagnosis
Table 1
Comparative summary of state of the art generic image annotation tools.
| | Image annotation tool | Graphic annotation | Semiautomatic segmentation | Image sequences | Semantic annotation | Annotation method | Measurements | Free |
| | Ratsnake [2, 4] | Polygon
Grid/freehand | Customizable snake model | Yes | Free text
OWL | Manual
Automatic | Yes | Yes | | LabelMe [21] | Polygon | None | No | Free text
WordNet | Manual | No | Yes | | Photostuff [22] | Fixed shape
Polygon | None | No | OWL | Manual | No | Yes | | Photocopain [23] | Fixed shape | None | No | RDFSOWL | Manual | No | Yes | | KAT [24] | Fixed shape
Polygon | None | No | RDFS
OWL | Manual | No | Yes | | ImageParsing.com [25] | Polygon | Hierarchical image parsing | Yes | Free text
WordNet | Manual
Automatic | No | No | | GAT [26] | Fixed shape
Polygon | Partition trees | Yes | MPEG-7
OWL | Manual | No | Yes | | Caliph [27] | Polygon | None | No | Free text
| Manual | No | Yes | | M-OntoMat Annotizer [28] | Fixed shape
Polygon | Magic Wand | Yes | RDFS
DAML | Manual | No | Yes |
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