%% %% zadanie 1
M = imread('ksztalty.jpg');
nowa = cat(3, M(51:250,51:250,1), M(51:250,51:250,2), M(51:250,51:250,3));
imwrite(nowa,'kwadrat.jpg');
nowa2 = cat(3, M(351:550,351:550,1), M(351:550,351:550,2), M(351:550,351:550,3));
imwrite(nowa2,'elipsy.jpg');