How to redirect image URLs to Page in Asteria-WordPress

I am using Asteria Lite and have problems with my image URLs. All my images which I am uploading in my Gallery for posts are automatically getting their own URL and they have better rankings in google than my actual pages. How can I redirect the picture links directly to my page of interest? Is their a plugin? Is their a possibility to create permalinks for images which directly link to post and not to image file?

Thanks!