Not works with my htaccess

[solutac]

I have to use htaccess to redirect requests to application root, which is in /public from webserver root. There is bootstrap of application which proccess all requests. So I use this htaccess:

RewriteEngine on
RewriteRule ^\.htaccess$ - [F]
RewriteCond %{REQUEST_URI} =""
RewriteRule ^.*$ /public/index.php [NC,L]
RewriteCond %{REQUEST_URI} !^/public/.*$
RewriteRule ^(.*)$ /public/$1
RewriteCond %{REQUEST_FILENAME} -f
RewriteRule ^.*$ - [NC,L]
RewriteRule ^public/.*$ /public/index.php [NC,L]

I tried add these lines to htaccess:

RewriteCond %{REQUEST_URI} !/public/ai-cache
RewriteCond %{REQUEST_URI} /public/images
#RewriteRule \.(?:jpe?g)$ /public/adaptive-images.php

or create new htaccess saved in /public folder:

RewriteEngine on
RewriteCond %{REQUEST_URI} !ai-cache
RewriteCond %{REQUEST_URI} images
RewriteRule \.(?:jpe?g)$ adaptive-images.php

but nothing works. Cache folder has enough permissions, but no images are saved there and firebug console alert, that images on the page does not exist.

It is possible to debug in some way? Or can I merge my htaccess and Adaptive images one together?

[staabm]

Does the your apache in generall accept htaccess settings in this directory?

[solutac]

Yes it accepts. But I would like to merge it rather. I do not know if images are redirect to adaptive-images.php. How to find out?

[staabm]

Activate apache access-log and/or rewrite log

[solutac]

I have activated access log (rewrite log is not possible to manage in customer centre of my webhosting), but there is nothing. Adaptive images is amazing tool, I tested on localhost and it works like charm. But in this case (redirecting of root), which is quite useall, not works. There have to be some way how to merge those two htaccesses.