Image Resizing

[lisnaskea]

Here's my problem. I have users uploading images. The users should make the images the appropriate size before uploading them.

These users are farmers. They are not very computer literate. They keep uploading massive files.

Is it possible to take the uploaded image and resize it before it is saved to the server? I'm sure i've seen this done. If so then i could automatically create a thumbnail too.

Thanks

Jamie

[[deleted]]

look at imagecopyresized() and ImageMagic

[techek]

I use ImageMagick which is a set of functions for Linux. With that you can manipulate images in a lot of ways.

This one I use on a live website (now with 13.000 users) :

<?php
$imagemagick_bins = '/usr/bin/imagemagick'

// up or downscales $path/$filename to 150x150 pixels with respect to proportions
$command = "$imagemagick_bins/convert $path/$filename -geometry 150x150 -sharpen 10 jpeg:$path/{$filename}_thumb";
$ok = exec($command);
?>

[Anon]

I use this code to make thumbnails:

$new_w=150;
$new_h=150;

$src_img = imagecreatefromjpeg ("path to file");

$dst_img = ImageCreate($new_w,$new_h);
ImageCopyResized($dst_img,$src_img,0,0,0,0,$new_w,$new_h,ImageSX($src_img),ImageSY($src_img));
$copy = imagejpeg ($dst_img,"path to resized file",100);
imagedestroy($src_img);

Hope you can make it work!
If not - you can just email me 🙂