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A vital role in detecting eye disorders is played by the analysis of the human retina using medical imaging methods. The main objective of this study is to improve the detection of retinal blood vessels by ameliorating the overall quality of non-uniform illumination conditions, removing image artifacts, connecting the broken vessels, and generating accurate segmented retinal vascular systems. A three-stage edge detection framework is proposed. First, image denoising, contrast enhancement, stretched decorrelation a...