PHP:Képkonvertáló rossz minőségben adja vissza a képet! hogyan tudnám kijavítani?

a kód(ok):

1.php:

<?php

/*

* File: SimpleImage.php

* Author: Simon Jarvis

* Copyright: 2006 Simon Jarvis

* Date: 08/11/06

* Link: [link]

*

* This program is free software; you can redistribute it and/or

* modify it under the terms of the GNU General Public License

* as published by the Free Software Foundation; either version 2

* of the License, or (at your option) any later version.

*

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

* GNU General Public License for more details:

* [link]

*

*/

class SimpleImage {

var $image;

var $image_type;

function load($filename) {

$image_info = getimagesize($filename);

$this->image_type = $image_info[2];

if( $this->image_type == IMAGETYPE_JPEG ) {

$this->image = imagecreatefromjpeg($filename);

} elseif( $this->image_type == IMAGETYPE_GIF ) {

$this->image = imagecreatefromgif($filename);

} elseif( $this->image_type == IMAGETYPE_PNG ) {

$this->image = imagecreatefrompng($filename);

}

}

function save($filename, $image_type=IMAGETYPE_JPEG, $compression=100, $permissions=null) {

if( $image_type == IMAGETYPE_JPEG ) {

imagejpeg($this->image,$filename,$compression);

} elseif( $image_type == IMAGETYPE_GIF ) {

imagegif($this->image,$filename);

} elseif( $image_type == IMAGETYPE_PNG ) {

imagepng($this->image,$filename);

}

if( $permissions != null) {

chmod($filename,$permissions);

}

}

function output($image_type=IMAGETYPE_JPEG) {

if( $image_type == IMAGETYPE_JPEG ) {

imagejpeg($this->image);

} elseif( $image_type == IMAGETYPE_GIF ) {

imagegif($this->image);

} elseif( $image_type == IMAGETYPE_PNG ) {

imagepng($this->image);

}

}

function getWidth() {

return imagesx($this->image);

}

function getHeight() {

return imagesy($this->image);

}

function resizeToHeight($height) {

$ratio = $height / $this->getHeight();

$width = $this->getWidth() * $ratio;

$this->resize($width,$height);

}

function resizeToWidth($width) {

$ratio = $width / $this->getWidth();

$height = $this->getheight() * $ratio;

$this->resize($width,$height);

}

function scale($scale) {

$width = $this->getWidth() * $scale/100;

$height = $this->getheight() * $scale/100;

$this->resize($width,$height);

}

function resize($width,$height) {

$new_image = imagecreatetruecolor($width, $height);

imagecopyresampled($new_image, $this->image, 0, 0, 0, 0, $width, $height, $this->getWidth(), $this->getHeight());

$this->image = $new_image;

}

}

?>

2.php:

<?php

include('1.php');

$image = new SimpleImage();

$image->load('1.jpg');

$image->resize(1366,768);

$image->save('2.jpg');

?>

az 1.jpg 1366x768as méretű!

a 2.jpg is.

a mérete pedig még így is a 36.19767781359396%-a!

a minősége pedig kb a negyede!

ez az egyetlen egy működő képes konvertáló az interneten.

Hol lehet beállítani a Kép minőségét?