Well done. I have been working with animating 2d images with a hand constructed depth map in the past to a decent 3d effect[1]. The illusion when guided by your mouse as in the OP seems to be much stronger then in left-right strafing that I did.
One point that can be worked on, as pointed out by other people here is the occluded pixels (this is an issue when an image has sharp changes in distance from the camera). You simply can't show what wasn't seen by the camera, so you have to fake it. In the pre-baked animations I did, the occluded pixels were duplicated and then manually fixed by me in Photoshop.
Perhaps the solution here would be to capture and store images from several perspectives. These could then be used to generate the depthmap using what algorithms Lens Blur used, and also to interpolate the occluded pixels when viewing the photo from different perspectives.
One point that can be worked on, as pointed out by other people here is the occluded pixels (this is an issue when an image has sharp changes in distance from the camera). You simply can't show what wasn't seen by the camera, so you have to fake it. In the pre-baked animations I did, the occluded pixels were duplicated and then manually fixed by me in Photoshop.
Perhaps the solution here would be to capture and store images from several perspectives. These could then be used to generate the depthmap using what algorithms Lens Blur used, and also to interpolate the occluded pixels when viewing the photo from different perspectives.
[1] http://fooladder.tumblr.com/