Figure 8From: Micro-crack detection of multicrystalline solar cells featuring an improved anisotropic diffusion filter and image segmentation techniqueImage filtering using the proposed anisotropic diffusion technique. (a) Defected sample and (b) good sample: (i) image processing of I d (x, y, 0) using Equation 8 with b = 1 and ϵ = μ I e , (ii) I d (x, y, t) for t = 4, and (iii) I Δ (x, y).Back to article page