What camera app?

[Plow13]

My friend has the galaxy s3 and before switching over from iPhone he showed me on the camera that he was able to filter everything out except a certain color in real time. What app does that? I got the galaxy s4

 

[ajua]

Have you looked through all the camera profiles/scenes the S4 has?

I don't know about real time color isolation, but look for Splash Color, Camera FV-5. The former can do that, but I don't know if it allows you to view the color isolation in real time. The latter is a good camera app with some handy settings like showing the grid and cropping frame at the same time.