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À̹ÌÁö¸¦ ÁöÁ¤µÈ ºñÀ²·Î ÀÚ¸£±â (crop)
14³â Àü
// »ý¼ºµÉ À̹ÌÁöÀÇ °¡·Î ¼¼·Î ºñÀ²
$B_width = 50;
$B_height = 100;

// ´ë»ó À̹ÌÁö¸í
$srcimg = "tmp/nosundo.gif";

// »ý¼º À̹ÌÁö¸í
$tgtimg = "tmp/cropimg.gif";


$size = getimagesize($srcimg);
if($B_width * $size[1] < $B_height * $size[0])
{

    // ¿øº» À̹ÌÁöÀÇ °¡·ÎÅ©±â°¡ ÁöÁ¤ ºñÀ²º¸´Ù Å©´Ù.
    $rs_img_width = round($size[1] * ($B_width / $B_height));
    $rs_img_height = $size[1];

    // ÀÚ¸¦ ½ÃÀÛ x,yÁÂÇ¥
    $sc_x = round(($size[0] - $rs_img_width) / 2);
    $sc_y = 0;


}
else
{
    // ¿øº» À̹ÌÁöÀÇ ¼¼·ÎÅ©±â°¡ ÁöÁ¤ ºñÀ²º¸´Ù Å©´Ù.
    $rs_img_width  = $size[0];
    $rs_img_height = round($size[0] * ($B_height / $B_width));

    // ÀÚ¸¦ ½ÃÀÛ x,yÁÂÇ¥
    $sc_x = 0;
    $sc_y = round(($size[1] - $rs_img_height) / 2);
}

// copyresampled °ªÀÌ µ¿ÀÏÇÏ´Ù why? À̹ÌÁöÀÇ È®´ë Ãà¼Ò°¡ ¹ß»ýÇÏÁö´Â ¾Ê±â ¶§¹®ÀÌ´Ù.
$sc_img_width = $rs_img_width;
$sc_img_height = $rs_img_height;

$rs_x =0;
$rs_y =0;

$sc_img = imagecreatefromgif($srcimg);
$rs_img = imagecreatetruecolor($rs_img_width, $rs_img_height);
imagecopyresampled($rs_img, $sc_img, $rs_x, $rs_y, $sc_x, $sc_y, $rs_img_width, $rs_img_height, $sc_img_width, $sc_img_height);
imagegif($rs_img, $tgtimg, 100);
imagedestroy($sc_img);

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