Before and After

Step 1
Open up the picture you want to add the selective gray with dashed lines effect in Photofiltre.

Step 2
Using the Selection tool on the Rectangle setting or whatever setting you like, make a selection in the picture you want to make gray.

Step 3
After that, click the Grayscale button,

Step 4
Now click the button on your keyboard that says Print Screen. It will usually be near the top right hand corner of your keyboard.

Step 5
Press Shift+Ctrl-V on your keyboard. The picture of the entire computer screen should appear.

Step 6
Using the Selection tool, cut out your picture and press Shift+Ctrl+V again and you’re done!