[1] Jin L H. Color image filtering and quaternion-based color image processing methods[D]. Wuhan: Institute for Pattern Recognition and Artifical Intelligence, Huazhong University of Science and Technology, 2008.(in Chinese)
[2] Xiong B, Yin Z P. A universal denoising framework with a new impulse detector and nonlocal means[J]. IEEE Transactions on Image Processing, 2012, 21(4): 1663-1675.
[3] Lin C H, Tsai J S, Chiu C T. Switching bilateral filter with a texture/noise detector for universal noise removal[J]. IEEE Transactions on Image Processing, 2010, 19(9): 2307-2320.
[4] Jin Q Y, Grama I, Liu Q S. Optimal weights mixed filter for removing mixture of Gaussian and impulse noises[J/OL]. arXiv preprint, 2012. http://arxiv.org/pdf/1205.3999v1.pdf.
[5] Jin L H, Liu H, Xu X Y, et al. Color impulsive noise removal based on quaternion representation and directional vector order-statistics[J]. Signal Processing, 2011, 91(5): 1249-1261.
[6] Chen B J, Liu Q S, Sun X M, et al. Removing Gaussian noise for colour images by quaternion representation and optimisation of weights in non-local means filter[J]. IET Image Processing, 2014, 8(10): 591-600.
[7] Chen B J, Dai H, Liu Q S, et al. Poisson noise removal for color images using quaternion representation[J]. Journal of Southeast University: Natural Science Edition, 2013, 43(4): 717-723.(in Chinese)
[8] Chen B J, Shu H Z, Coatrieux G, et al. Color image analysis by quaternion-type moments[J]. Journal of Mathematical Imaging and Vision, 2015, 51(1): 124-144.
[9] Jin L H, Liu H, Xu X Y, et al. Quaternion-based color image filtering for impulsive noise suppression[J]. Journal of Electronic Imaging, 2010, 19(4): 043003-01-043003-12.
[10] Jin L H, Li D H. A switching vector median filter based on quaternion rotation[J]. Journal of Image and Graphics, 2007, 12(12): 2089-2095.(in Chinese)