Hi Karthik, Shoudl the "img_size" in [img,count]=fread(fid,img_size,bit_depth); be the same as "imgSize" in function DisplayImage(imgSize, fname,bit_depth,endian ) ? My image of a plastic phantom was cropped in Volview 2.0. How do I find the "imgSize" of this cropped volume ? Thx, Rex