


IM_RESIZE - resize an image using bicubic interpolation NEWIMG = IM_RESIZE(IMG,NW,NH) Given input image IMG, returns a new image NEWIMG of size NWxNH. Matthew Dailey 2000


0001 function newimg = im_resize(img,nw,nh) 0002 %IM_RESIZE - resize an image using bicubic interpolation 0003 % 0004 % NEWIMG = IM_RESIZE(IMG,NW,NH) Given input image IMG, 0005 % returns a new image NEWIMG of size NWxNH. 0006 % 0007 % Matthew Dailey 2000 0008 0009 if nargin ~= 3 0010 error('usage: im_resize(image,new_wid,new_ht)'); 0011 end; 0012 0013 ht_scale = size(img,1) / nh; 0014 wid_scale = size(img,2) / nw; 0015 0016 newimg = interp2(img,(1:nw)*wid_scale,(1:nh)'*ht_scale,'cubic');