It looks like they've tried to simulate a mounting frame. If you use Photoshop, it's a basic four-step method:
- Resize the canvas to create the frame border - Image, Canvas Size. Make sure you check the Relative option and have selected the centre Anchor point, then add the size of your frame to the Width and Height boxes.
- Create two layers containing the frame, and the image - Ctrl-Click on the image in your layer to select the image, then Layer, New Via Copy.
- Go back to the original background and Ctrl-Click the image in the layer again. Then select the frame by using Select, Inverse. Add a pattern/texture to the frame using Layer, New Fill Layer, Pattern. Choose the pattern/texture you want and hit OK.
- Select the new copy layer you made of the image, click on the Layer Style icon at the bottom of your layers panel, and choose Bevel/Emboss. Style should be Inner Bevel, Technique should be Chisel Hard. Adjust the Depth, and Sizes as you like.
You can also find plenty of Photoshop actions that do something similar automatically:
http://www.digitalblackandwhite.co....ble-matt-frame-photoshop-action/#!prettyPhoto
Don't forget that Photoshop already has a number of actions built in, including for Frames. Open the Actions Window, click on the little downward arrow in the top-right corner of that window, and select Frames. There should be ones for Cut Out and Recessed frames which do something similar to your image.