Matlab(一) .jpg转.ppm

1.jpg2ppm.m

function status = jpg2ppm(infilename, outfilename)
    I = imread(infilename, 'jpg');
    imwrite(I, outfilename, 'ppm');
    status = 0;
    close;
end

2.命令

jpg2ppm('D:\greens.jpg', 'D:\greens.ppm')