@article {yu2008irgs,
	title = {IRGS: Image segmentation using edge penalties and region growing},
	journal = {IEEE transactions on pattern analysis and machine intelligence},
	volume = {30},
	number = {12},
	year = {2008},
	pages = {2126{\textendash}2139},
	publisher = {IEEE},
	author = {Yu, Qiyao and Clausi, David A}
}
