Image Resizing

[stevo1628]

I am in need of a simple way to take an image, resize it, and display it on a web page (all in php of course). What are the functions I would use? Can I change the quality of the image? Any help at all would be greatly appreciated.

Thanks,
Stevo

[insectis]

For a quick, resize of images on the fly, put the code below in a file called "resizeimage.php"

<?
        if (!$max_width)
            $max_width = 150;
        if (!$max_height)
            $max_height = 100;

    $size = GetImageSize($image);
    $width = $size[0];
    $height = $size[1];

    $x_ratio = $max_width / $width;
    $y_ratio = $max_height / $height;

    if (($width <= $max_width) && ($height <= $max_height)) {
        $tn_width = $width;
        $tn_height = $height;
    } elseif (($x_ratio * $height) < $max_height) {
        $tn_height = ceil($x_ratio * $height);
        $tn_width = $max_width;
    } else {
        $tn_width = ceil($y_ratio * $width);
        $tn_height = $max_height;
    }

    $src = ImageCreateFromJpeg($image);
    $dst = imagecreatetruecolor($tn_width, $tn_height);
    imagecopyresampled($dst, $src, 0, 0, 0, 0, $tn_width, $tn_height, $width, $height);

    //USE THE TWO LINES BELOW, IF IMAGECREATETRUECOLOR DOESN'T EXIST
    //$dst = ImageCreate($tn_width, $tn_height);
    //ImageCopyResized($dst, $src, 0, 0, 0, 0, $tn_width, $tn_height, $width, $height);

    ImageJpeg($dst);
    ImageDestroy($src);
    ImageDestroy($dst);

?>

Then use this line of code everytime you want to display an image. Just change "ImageName.jpg" to the name/location of your image.

    print "<img src=\"resizeimage.php?image=ImageName.jpg&max_width=50&max_height=77\" border=\"0\">";

HTH,

insectis