Title	Contrast Enhancement Technique of Dark Blurred Image
Author	Naglaa Yehya Hassan, Norio Aakamatsu
Citation	Vol. 6  No. 2  pp. 223~226
Keywords	Digital image, sigmoid function, contrast enhancement, image processing and un-sharp masking.

Title	Separation of Convolutive Mixtures of Cyclostationary Sources by Reference Contrasts
Author	K. Sabri, M. Taoufiki, A. Adib, D. Aboutajdine, M. El Badaoui, F. Guillet
Citation	Vol. 6  No. 3  pp. 224-229
Keywords	Cyclic statistics, Blind Source Separation, Convolutive mixture, Reference contrast, Cyclostationarity.

Title	Referenced Contrast: A New Approach to the Blind Deconvolution of MIMO Channels
Author	Manal Taoufiki, Abdellah Adib, Driss Aboutajdine
Citation	Vol. 6  No. 3  pp. 87-91
Keywords	Reference signals, contrast, convolutive mixture, blind source separation

Title	Simplification of Raster Images to Extract Visual Information
Author	Nebras N. Hasson, S. A. Aljunid, R. Badlishah Ahmad
Citation	Vol. 6  No. 11  pp. 49-52
Keywords	Document Analysis and Recognition, Line Drawings, Contrast Enhancement, Thinning.