Journal of Healthcare Engineering / 2017 / Article / Fig 3

Research Article

Blood Vessel Extraction in Color Retinal Fundus Images with Enhancement Filtering and Unsupervised Classification

Figure 3

An example of retinal region selection operation.
(a) Original retinal fundus image from STARE
(b) The mask image of (a) labelled by hand
(c) The mask image obtained with basic thresholding. The accuracy is 98.48%
(d) The mask image obtained with proposed method. The accuracy is 99.21%

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