niharikavadlamudi / skeletongraph

Binarisation Technique

SkeletonGraph

install conda environment

conda env create -f environment.yml

run.py parameters

python run.py -h
usage: run.py [-h] -i INPUT [-d] [-o OUTPUT]

Skeleton Graph Example

optional arguments:
  -h, --help            show this help message and exit
  -i INPUT, --input INPUT
                        Path to input image
  -d, --display         Display output (default: False)
  -o OUTPUT, --output OUTPUT
                        Path to output file

example run

command:

python run.py -i example_images/JDoe1.png -d -o example_output/JDoe1.png.gxl

output gxl-file (-o, --output)

gxl-file: example_output/JDoe1.png.gxl

output display (-d, --display)

Publications

This implementation of skeleton graphs or keypoint graphs¹ have been use in the following publications:

• P. Maergner, K. Riesen, R. Ingold, and A. Fischer (Apr. 2020). “Signature Verification via Graph-Based Methods”. In: Handbook of Pattern Recognition and Computer Vision. Ed. by C. H. Chen. World Scientific, pp. 305–322. [World Scientific]

• P. Maergner, N. Howe, K. Riesen, R. Ingold, and A. Fischer (June 2019). “Graph-Based Offline Signature Verification”. In: arXiv:1906.10401 [cs]. arXiv:1906.10401 [cs]. [arXiv]

• P. Maergner, V. Pondenkandath, M. Alberti, M. Liwicki, K. Riesen, R. Ingold, and A. Fischer (July 2019). “Combining Graph Edit Distance and Triplet Networks for Offline Signature Verification”. In: Pattern Recognition Letters 125, pp. 527–533. [ScienceDirect]

• M. Stauffer, P. Maergner, A. Fischer, R. Ingold, and K. Riesen (2019). “Offline Signature Verification using Structural Dynamic Time Warping”. In: Proc. of Int. Conf. on Document Analysis and Recognition (ICDAR). IEEE, pp. 1117–1124. [IEEE Xplore]

• P. Maergner, N. Howe, K. Riesen, R. Ingold, and A. Fischer (2018). “Offline Signature Verification via Structural Methods: Graph Edit Distance and Inkball Models”. In: Proc. of Int. Conf. on Frontiers in Handwriting Recognition (ICFHR), pp. 163–168. [IEEE Xplore]

• P. Maergner, V. Pondenkandath, M. Alberti, M. Liwicki, K. Riesen, R. Ingold, and A. Fischer (2018). “Offline Signature Verification by Combining Graph Edit Distance and Triplet Networks”. In: Structural, Syntactic, and Statistical Pattern Recognition, pp. 470–480. [Springer] [arXiv]

• P. Maergner, K. Riesen, R. Ingold, and A. Fischer (2017a). “A Structural Approach to Offline Signature Verification Using Graph Edit Distance”. In: Proc. of Int. Conf. on Document Analysis and Recognition (ICDAR). IEEE, pp. 1216–1222. [IEEE Xplore]

• P. Maergner, K. Riesen, R. Ingold, and A. Fischer (June 2017b). “Offline Signature Verification Based on Bipartite Approximation of Graph Edit Distance”. In: Proc. of Int. Graphonomics Society Conference (IGS), pp. 162–165.

¹ Keypoint graph is another name for the same type of graph.