How to crop the white background of an image in Opencart?

Question

opencart

Hello. It is necessary to make sure that before resizing the image, the white background of the image is cut off to the content. Those. the white background was not removed, but the background was cut off to the image itself. Does anyone have a modified resize? Or tell me how it can be done? Analog trimming in FS.
If there is a module, then it is free.

Answer 1

I can only suggest windows-software

Answer 2

Try using this function when resizing images.
php.net/manual/en/function.imagecropauto.php