Hi koray77,
The chameleon in the post is a female Chamaeleo chamaeleon. You'll notice that the parietal crest of the casque is developed but rather straight (rather than curved outward) and the occipital lobes are present and moderately developed.
Looking at her, you can also see that her temporal region of her head is slightly indented, indicating she is slightly dehydrated. It isn't bad, but make sure to mist her well to give her a good chance to rehydrate.
Chris