[1] A. Atsalakis, N. Papamarkos and I. Andreadis, "On estimation of the number of image principal colors and color reduction through self-organized neural networks", Int. Journal of Imaging Systems and Technology, vol. 12, Issue 3, pp. 117-127, 2002.

[2] A. Atsalakis, N. Papamarkos, N. Kroupis, D. Soudris, A. thanailakis, “A Color Quantization Technique Based On Image Decomposition And Its Hardware Implementation” IEE Proceedings Vision, Image and Signal Processing, Vol 151, No 6, December 2004.

[3] A. Atsalakis, N. Papamarkos, “Color Reduction and Estimation of the Number of Dominant Color by Using a Self-Growing and Self-Organized Neural Gas”, Engineering Applications of Artificial Intelligence, vol 19, pp 769–786, 2006

[4] N. Papamarkos and A. Atsalakis, "Gray-level reduction using local spatial features", Computer Vision and Image Understanding, CVIU-78, pp. 336-350, 2000.

[5] N. Papamarkos, A. Atsalakis and C. Strouthopoulos, "Adaptive Color Reduction", IEEE Trans. On Systems, Man, and Cybernetics, IEEE Trans. on Systems, Man, and Cybernetics-Part B, vol. 32, no. 1, Feb. 2002.

[6] C. Strouthopoulos, N. Papamarkos and A. Atsalakis, "Text extraction in complex color documents", Pattern Recognition, Vol. 35, Issue 8, pp. 1743-1758, 2002