Noise-robust line detection using normalized and adaptive second-order anisotropic Gaussian kernels.

•Most of existing line detection methods are vulnerable to noise in detecting narrow lines.•The use of the anisotropy factor helps improve the noise-robustness in line detection.•The adaptive anisotropy factor helps reduce the anisotropy stretch effect.•The proposed line detection method outperforms the competing methods on noisy images.•The proposed method consumes an acceptable execution time.