(a) Write down the result of applying a 3-element mean filter 1/3[111] to the above image. You should handle the pixels at the two ends using partial filters. Give your answer correct to 2 decimal places. (b) Write down the result of applying a 3-element median filter to the above image. You should handle the pixels at the two ends by padding the image with replication. (c) An extremum filter replaces the value of a pixel by the intensity value of the closer of the two extreme values covered by the filter. Write down the result of applying a 3element extremum filter to the above image. You should handle the pixels at the two ends by padding the image with replication