Diabetic Retinopathy Grading by Digital Curvelet Transform

Figure 8

(a) Original image after removing vessels, (b) applying morphological dilation on (a), (c) background image by applying morphological erosion on (b), (d) mapping zero pixels of (c) on (b), (e) removing background, (f) produced image after thresholding, (g) detected MAs, (h) MAs on original image.

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