1. Lecture Notes in Computer Science;M.M. Fleck,1996
2. Drimbarean, A.F.: Image processing techniques to detect and filter objectionable images based on skin tone and shape recognition. In: Proceedings International Conference on Consumer Electronics, pp. 278–281 (2001)
3. Zheng, H., Liu, H., Daoudi, M.: Blocking objectionable images: adult images and harmful symbols. In: Proceedings of the IEEE International Conference on Multimedia and Expo. (ICME), pp. 1223–1226 (June 2004)
4. Xu, Y., Li, B., Xue, X., Lu, H.: Region-based pornographic image detection. In: IEEE 7th Workshop on Multimedia Signal Processing (MMSP), pp. 1–4 (November 2005)
5. Studies in Computational Intelligence;J.-S. Lee,2010