I’m trying to create a thumbnail of an image, for example, this one: I

Question

0

Editorial Team

Asked: June 15, 20262026-06-15T11:16:35+00:00 2026-06-15T11:16:35+00:00

I’m trying to create a thumbnail of an image, for example, this one: I

0

I’m trying to create a thumbnail of an image, for example, this one:
original image

I need the thumbnail to be 500×300. I’ve chosen a very wide image (944×168) for illustration.

The first thing I do in codeigniter is to scale up (or down) the image so that it is as small as possible but covers a 500×300 area. So in this case, I need to scale to 1685×300 since it is wider than it is high. I do this in codeigniter with the following setup:

$config=array(
   "image_library"=>"gd2",
   "source_image"=>"blah.png",
   "maintain_ratio"=>true,
   "master_dim"=>"height",  /* in this case, with a wide image, this is what I want*/
   "height"=>300,
   "width"=>1685   /* calculated by (width/height)*300 */
);

Then I perform it as follows:

$this->load->library('image_lib',$config);
$this->image_lib->resize();

But codeigniter gives me this:
wrong resize
which is not what I expect because I have only resized at this stage, not cropped. It is the right resolution though, 1685×300