第6章 .....\li_imadd.m .....\li_imcrop.m .....\li_imdivide.m .....\li_immultiply.m .....\li_imresize.m .....\li_imresize3.m .....\li_imrotate.m .....\li_imsubtract.m .....\li_Mirror.m .....\li_Move.m