function saveBig($savefile){
$image=new Gmagick($savefile);

$width=$image->getimagewidth();
$height=$image->getimageheight();

$standartWidth=1024;
$standartHeight=756;

$masWidth=1300;
$masHeight=900;

$kw=$width/$masWidth;
$kh=$height/$masHeight;

$wx=$width/$kw;
$hy=$height/$kh;

$image->setCompressionQuality(75);
$image->resizeimage($wx,$hy,null, 1, true);

$x=(($masWidth-$standartWidth)/2);
$y=(($masHeight-$standartHeight)/2);


$image->cropimage($standartWidth, $standartHeight, $x,$y);
$image->writeimage($savefile);
}