Application of a Fractional Grey Prediction Model Based on a Filtering Algorithm in Image Processing

Figure 7

Various grey correlation-based edge extraction images for a threshold value of 0.95. (a) Absolute grey correlation. (b) Relative grey correlation. (c) Deng’s grey correlation. (d) Similarity degree. (e) Proximity correlation. (f) Angle correlation.

(a)

(b)

(c)

(d)

(e)

(f)