Dynamic image generation

Hi,

I would like to generate dynamically image sizes so I create a routing for that (/image/generate/400-400/test.jpg)

PHP Code:

$routes->get('/image/generate/(:any)/(:any)', 'Home::image/$1/$2'); 


but it isn't working as I expected. I don't know why I am redirected to a default route if URL contains extension eg (.jpg). If I remove .jpg then everything is working properly