Cherifi, DalilaDoghmane, Mohamed ZinelabidineNait-Ali, A.Aici, ZakiaBouzelha, Salim2015-06-112015-06-1120117th International Workshop on Systems, Signal Processing and their Applications, WoSSPA 2011; Tipaza; Algeria; 9 May 2011 through 11 May 2011; Category numberCFP1133P-ART; Code 85750978-145770690-5https://dspace.univ-boumerdes.dz123456789/1707This study is a comparison between two image segmentation's methods; the first method is based on normal brain's tissue recognition then tumor extraction using thresholding method. The second method is classification based on EM segmentation which is used for both brain recognition and tumor extraction. The goal of these methods is to detect, segment, extract, classify and measure properties of the brain normal and abnormal (tumor) tissuesenbrain segmentationEM segmentationmagnetique resonance imagestumor extractionMedical imagesThresholding methodstumor extractionMagnetic resonance imagingMedical imagingSignal processingImage segmentationArticle