matlab实现不同类型和大小卷积核处理数字图像

Write a function Convolution (Image I, Kernel H) that has arguments a. Image B (Images is corrupted by salt-and-pepper noise). b. Kernel H (You should allow varying size Kernels) The output of function should be the convolution of I with H. Test your function and show results on the following Kernels. i. Averaging Kernel ( 3×3 and 5 ×5 ) ii. Median Kernel ( 3×3 and 5 ×5 )