You can blur any part of a picture after you've taken it using a third-party app for iPhone or Android.

You can sharpen an image in Photoshop using the Smart Sharpen tool. Sharpening an image can be done in only a few steps in ...

A blurred image may be a mistake and disappointment when you view important pictures, but sometimes it's an intentional effect you want to add in. With Photoshop, you have complete control over the ...