如何定义fdesign.ellip，感谢
% Design the elliptic filter
d = fdesign.ellip(10, 0.1, 60, 0.5, 60);
elliptic_filter = design(d, 'ellip');
% Apply the filter to the noised image
filtered_image = filter2(elliptic_filter, noised_image);
% Display the filtered image
figure
imshow(filtered_image)
title('Filtered Image')
未定义变量 "fdesign" 或类 "fdesign.ellip"。