saving a resized image

Brian_A

I submit this:

http://www.webbywarehouse.com/members/thumb.php?img=fish.jpg&size=300&shadow=true

This is an edited updated post, I can now save the image but the resizer ONLY makes it square, how can I force it to allow x/y sizeing?

<?php

//thumbnail max size
//$size = 100;

//max additional size created by margin
$margin = 10;

//draw a border?
$border = false;

//draw a drop shadow?
//$shadow = true;

//where are the images?
$jpegdir = 'images';

//nothing else to configure

$jpeg = $jpegdir .'/'. $HTTP_GET_VARS['img'];

if($d=getimagesize($jpeg)){
$dim = ($d[1]>$d[0]) ? 1 : 0;
$mod = $size / $d[$dim];

$w = (int) ($d[0] * $mod);
$h = (int) ($d[1] * $mod);

$x = (int)(($size + $margin - $w) / 2);
$y = (int)(($size + $margin - $h) / 2);

//echo "<br>$w x $h";
//echo "<br>$x x $y";

header('Content-type: image/jpeg');

$src = imagecreatefromjpeg($jpeg);
$dst = imagecreate($size+($margin * 2), $size+($margin * 2));
$white = imagecolorallocate($dst,255,255,255);
imagefill($dst,0,0,$white);
if($border){
	$black = imagecolorallocate($dst,0,0,0);
	imagerectangle($dst,0,0,$size+$margin,$size+$margin,$black);
}
if($shadow){
	$lighter = imagecolorallocate($dst,220,220,220);
	imagefilledrectangle($dst,($x+3),($y+3),($w+$x+3),($h+$y+3),$lighter);
	$light = imagecolorallocate($dst,180,180,180);
	imagefilledrectangle($dst,($x+1),($y+1),($w+$x+1),($h+$y+1),$light);
	$dark = imagecolorallocate($dst,140,140,140);
	imagefilledrectangle($dst,($x),($y),($w+$x),($h+$y),$dark);
}
//imagecopyresampled($dst,$src,$x,$y,0,0,$w,$h,$d[0],$d[1]);
imagecopyresized($dst,$src,$x,$y,0,0,$w,$h,$d[0],$d[1]);



ImageJPEG($dst,"temp.jpg", 100);

imagejpeg($dst);
imagedestroy($dst);
imagedestroy($src);

echo $dist.'<br>'.$strlen($dst);

}
?>

[/COLOR]

Okay, the issue of saving is fixed, now how can I force the image to be resized by entering new x/y values. With this script as it is it only allows it to be a square. Hmmmmmmmmmmmm.

Last step then I am off and running.

What am I doing wrong?

I posted this in the "Newbie" forum, but thought that maybe it is supposed to be in this forum. Sorry for the repeat

Weedpacket

From looking at what you've got, I think the problem is that you're specifying some image dimensions in terms of a single $size value, which is getting used for both x and y dimensions. Eg.,

$dst = imagecreate($size+($margin 2), $size+($margin 2));

Which is of course a square. If $size were replaced by $sizex and $sizey (say) in the appropriate places, you won't be constrained to square images.

Brian_A

I have created a form to submit to this script. Truly, I did not write the original script but I did add the save image part to this. This is the first time that I have worked with images AND php. So bare with me, but it is in the:

if($d=getimagesize($jpeg)){
$dim = ($d[1]>$d[0]) ? 1 : 0;
$mod = $size / $d[$dim];

$w = (int) ($d[0] $mod);
$h = (int) ($d[1] $mod);

$x = (int)(($size + $margin - $w) / 2);
$y = (int)(($size + $margin - $h) / 2);

part that I get confused on. I do see that I will need to pass an x & y variable on to do this but I am just not clear on how this is going to happen. I will keep digging into this. One thing I don't do is give up.

Thanks for the heads up on the x,y thing though.

Weedpacket

Well, what

$dim = ($d[1]>$d[0]) ? 1 : 0;
$mod = $size / $d[$dim];

looks like to me is that it looks at the width and height, and figures out a suitable scaling factor so that the longest dimension is reduced to a certain $size (I.e., if the image is taller than it is wide then the scaled image will be $size pixels tall; if it's wider than it is tall, the scaled image will be $size pixels wide).

Brian_A

Okay, I will post my fix, I figured it out and your advice, Weedpacket, or rather you provoked me into looking at it differently. Maybe I still should be posting this in the Newbie forum but I am not sure.

Anyway, I will post my source ASAP, once it looks respectable. It works and the issue of resizing properly is not an issue any more. But I now have a new questions.

What about resizing .gif's and .png's?

I would like to allow for the three primary web formats if at all possible.

Is it a s simple as OUTPUTING the new file as in:

ImageJPEG($dst,"images/$newimg.jpg", $quality);

but saving the appropriate format? I am not sure on this one.

Continued "thank you's" to those with answers and advice.

🆒

<?php
if (function_exists("imagegif")) {
header ("Content-type: image/gif");
imagegif ($im);
}

that I don't have imagegif() so what can I do to be able to work with .gif's?

Arggggggggg![/color]

Weedpacket

Originally posted by Brian_A
What about resizing .gif's and .png's?

I would like to allow for the three primary web formats if at all possible.

Is it a s simple as OUTPUTING the new file as in:

ImageJPEG($dst,"images/$newimg.jpg", $quality);

but saving the appropriate format? I am not sure on this one.

The "appropriate format" depends on what you want to use it for - you're free load JPEGs and save them as PNGs, or vice-versa - gd-lib works with its own format internally and makes the necessary translations when necessary.

I don't have imagegif() so what can I do to be able to work with .gif's?

When Unisys (the owners of the .gif format) got silly about licensing and pressing charges against people using unlicensed .gif software or websites using unlicensed .gifs, support for gif was dropped from gd-lib. But the only thing about GIF that PNG can't do is animation; the most complicated static GIF wouldn't even begin to stretch PNG's faculties. Sooner the world gets rid of .gifs, the better 🙂.