I want to generate resized images on the fly. Basically I'm creating a plugin that allows the user to set a default image that gets displayed on the front end. He also has an option to change the size of this image anytime via the plugin options.
So what would be the best way to resize his uploaded image and display it on the front-end? How can I implement that?
Is it right to say that WordPress does not have a simple function to resize images on the fly (with caching)? That's all I need, nothing more fancy, so if there is something in-built to WordPress I would go ahead and use that.