Color filter when capturing images
<p>I have an application where I capture images, but with effects. For example, I have a black and white effect (when the camera is open, the image is shown in black and white). So, I have put a slider on the camera view to control the color filter.</p>

<p>I want to be able to change the slider, where the camera shows a color filter according to the color from the slider value. If the slider value is zero, then black and white mode should be used.</p>

<p>How can I do this?</p>
