Modified Directional Weighted Median Filter
نویسندگان
چکیده
Removal of random value impulse noise is essential to help successive process like image segmentation, analysis, pattern recognition etc. To remove uniform/randomvalued impulse noise without compromising the image detail information such as sharp edges, Modified Directional Weighted Median Filter (MDWMF) is proposed. The proposed filter utilizes the second order difference (SOD) along with a threshold to identify the set of noisy pixels. Detected noisy pixel are then replaced by using the direction based weighted median value. Detailed experimentation is performed which show that the proposed approach provides better results of suppressing uniform/random-value impulse noise from gray scale images.
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