small task for focus and blurr functionality

Need simple function impliment in our one of the photo app called focus and blurr functioanlity. WE need to impliment this functionality in camera layer where user can apply focus and blurr. If you want to check how this simple task need to be you can check in [login to view URL] you add photo there is focus and blurr feature that same feature we need in already developed one of our photography project. So please see the description i written here and bid according to that . this is small task not whole project so give your cost according to task not based on project.