note 58545 added to function.imagecopyresampled

For the best image quality... How to get new proportional size of the image if the desible size of source image is approximatly equal to needed size. If needed size differs from source size on less than the user factor then transformation isn`t apply. /**********************************************/ function imageCopyResize($image, $xSize, $ySize, $needed_user_factor, $new_image_path = "") { //example: neded_user_factor = 0.2 if($xSize == 0 || $ySize == 0) return array("At the leat one pair of size is 0",0,0); $size = getImageSize($image); $width = $size[0]; $height = $size[1]; $x_ratio = $xSize / $size[0]; $y_ratio = $ySize / $size[1]; if($x_ratio > $y_ratio) $res_ratio = $y_ratio; else $res_ratio = $x_ratio; if(abs($res_ratio - 1) > $needed_user_factor) { $width = ceil($width * $res_ratio); $height = ceil($height * $res_ratio); } $fileinfo = pathinfo($image); $file_type = strtolower($fileinfo["extension"]); if($file_type == "jpg" || $file_type == "jpeg") $src = ImageCreateFromJpeg($image); else if($file_type == "gif") $src = ImageCreateFromGif($image); else if($file_type == "png") $src = ImageCreateFromPNG($image); else if($file_type == "bmp") $src = ImageCreateFromBmp($image); //Thanks Previous Coder else return array("Unknown image format: ".$file_type, 0, 0); $output_path = ($new_image_path == "")?$image:$new_image_path; $dst = ImageCreateTrueColor($width, $height); ImageCopyResized($dst, $src, 0,0,0,0,$width, $height, $size[0], $size[1]); if($file_type == "jpg" || $file_type == "jpeg") ImageJpeg($dst, $output_path, 100); else if($file_type == "gif" || $file_type == "bmp") ImageGif($dst, $output_path); else if($file_type == "png") ImagePNG($dst, $output_path); ImageDestroy($src); ImageDestroy($dst); return array("", $width, $height); } /**********************************************/ ---- Manual Page -- http://www.php.net/manual/en/function.imagecopyresampled.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+58545 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+58545&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+58545&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+58545&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+58545&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+58545&report=yes&reason=non-english Delete: already in docs -- http://master.php.net/manage/user-notes.php?action=delete+58545&report=yes&reason=already+in+docs Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+58545&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+58545&report=yes Search -- http://master.php.net/manage/user-notes.php