<P>I=imread('1.jpg');<BR>>> J=filter2(fspecial('sobel'),I);<BR>??? Error using ==> conv2<BR>HCOL, HROW, and A must be full double.</P>
<P>Error in ==> D:\MATLAB6p5p1\toolbox\matlab\datafun\filter2.m<BR>On line 70 ==> y = round(conv2(hcol, hrow, x, shape));<BR>这是怎么回事啊?</P>