Adaptive Thresholding Technique for Retinal Vessel Segmentation Based on GLCM-Energy Information

Figure 5

Adaptive thresholding using different ASM range information on DRIVE database. (a) DRIVE database colored retinal image. (b) DRIVE database gold standard. (c) Segmented vessel through adaptive thresholding using minimum ASM mid-range threshold value for the grayscale intensity image. (d) Segmented vessel through adaptive thresholding using maximum ASM mid-range threshold value for the grayscale intensity image. (e) Segmented vessel through adaptive thresholding using mean ASM mid-range threshold value for the grayscale intensity image. (f) Segmented vessel through adaptive thresholding using minimum ASM mid-range threshold value for the Green Channel. (g) Segmented vessel through adaptive thresholding using maximum ASM mid-range threshold value for the Green Channel. (h) Segmented vessel through adaptive thresholding using mean ASM mid-range threshold value for the Green Channel.

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