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Articles by Saghir Ahmad
Total Records ( 2 ) for Saghir Ahmad
  Md. Hasanul Kabir , M. Abdullah-Al-Wadud , Mohammad A.U. Khan , Abdur Rashid and Saghir Ahmad
  In this study, we present an image contrast enhancement method based on block-wise intensity pair distribution. The proposed algorithm takes the local intensity-pair distribution, instead of using the intensity-pair distribution of the whole image. To deal with the issues of contrast stretch and over-enhancement, a linear magnitude mapping function is used as a substitute to a non-linear one. This linear mapping preserves the relative contrast enhancement ratio between the gray levels. The local information from blocks facilitates contrast enhancement, enhances subtle edge information and eliminates noises from the image. The proposed algorithm is suitable for detail analysis of image features.
  Bilal Ahmed , Tahir Rasheed , Mohammad A. U. Khan , Abdur Rashid and Saghir Ahmad
  Chest radiographs play an important role in early diagnosis of lung cancer. Due to overlapping of the nodule with ribs and clavicles, the nodule is hard to detect in conventional chest radiographs. In this study A technique is presented based on Independent Component Analysis (ICA) for the suppression of posterior ribs and clavicles which will enhance the visibility of the nodule and will reduces the stress on automatic nodule detection module.
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