title: Letter to the editor concerning "An automated blood vessel segmentation algorithm using histogram equalization and automatic threshold selection".
authors.forename: Karl
authors.initials: K
authors.lastname: Daggfeldt
mesh_terms: D000465:Algorithms; D003930:Diabetic Retinopathy / Q000175:diagnosis*; D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D010363:Pattern Recognition, Automated / Q000379:methods*; D012171:Retinal Vessels / Q000033:anatomy & histology*