Figure 1
From: Automatic identification of angiogenesis in double stained images of liver tissue
A subimage showing cross-section of a mature vessel. Brown stained endothelium cells border a vessel lumen that is inner section of a vessel. Pericytes are stained red and cover endothelium cells. The closeness between red stained regions and brown ones clearly indicate that red stained regions are not fibroblasts or smooth muscle cells.