If you need to blur the picture quickly, these days you don't even need to purchase software. This application as Photo Editor background blur can be quickly and easily, and for free. This application will give you the step by step guide.
• Photoshop tutorial: how to blur the background
• Edit Photos With GIMP
• A way to blur the background
• Learn how to change the background picture (a quick and easy way)
The opportunity to sharpen your image after you have a saving grace. Sometimes shallow depth or incorrectly selected AF point can mean that key details in the image softer. Use the Unsharp Mask Filter may return these lost items and prevent otherwise a nice photo from that destined for the dumpster.