fspecial 2d Filter

//fspecial 2d Filter
>> orgImg=imread('cameraman.tif');
>> radius=1;
>> filter_1=fspecial('disk',radius);
>> app_Filter_1=imfilter(orgImg,filter_1, 'replicate');
>> radius=10;
>> filter_2=fspecial('disk',radius);
>> app_Filter_2=imfilter(orgImg,filter_2, 'replicate');
>> subplot(1,3,1),imshow(orgImg);
>> subplot(1,3,2),imshow(app_Filter_1);
>> subplot(1,3,2),imshow(app_Filter_2);