A New Desired Histogram Method for Contrast Enhancement of SAR Images
نویسنده
چکیده
In this paper a new desired histogram method is proposed to enhance the contrast of bimodal SAR images using histogram specification with Gamma distribution. The method is aimed to estimate the statistical parameters of the original histogram as the means and prior probabilities of the two modes using the Maximum Likelihood Gamma Distribution technique (ML). Next, we separate the two modes by shift (modify) the first mode left or shift (modify) the second mode right or perform both shifts. After that we generate a new histogram called “Desired Histogram” using the modified statistical data. By applying a histogram specification method, a high contrast image will be produced. The new method of contrast enhancement has been tested on SAR images and showed good results.
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