Title of the Paper (Length of 1 Line is Recommended)

Diabetic retinopathy is a complication of diabetes that is caused by changes in the blood vessels of the retina. The symptom can blur or distort the patient’s vision and are mainly cause of blindness. Exudates are one of the primary signs of diabetic retinopathy. Detection of exudates by ophthalmologists normally required pupil dilation using chemical solution which takes time and affects patients. This paper investigated a set of optimally adjusted morphological operators used for exudates detection on Thai patients’ non-dilated pupil and low-contrast images. The detected exudates are validated by comparing with ophthalmologists’ handdrawn ground-truth. As a result, the sensitivity and specificity for the exudates detection were very high of 80% and 99.4% respectively.