Parallax effect from Google Lens Blur photos
depthy.stamina.pl
Parallax effect from Google Lens Blur photos
1–10 of 61 posts
Re: Parallax effect from Google Lens Blur photos
#2Source code: https://github.com/panrafal/depthy
Re: Parallax effect from Google Lens Blur photos
#3All I see is a black page? (Chromium 33.0.1750.152)
404s for the script and CSS files
Re: Parallax effect from Google Lens Blur photos
#4All I see is a black page? (Chromium 33.0.1750.152) 404s for the script and CSS files
Yep, seems he deployed a bad build. Was working a bit earlier, and hopefully soon again
Edit: works now http://depthy.stamina.pl/
Re: Parallax effect from Google Lens Blur photos
#5Surprisingly well faked in face of the fact that there's no real 3D information in the pictures.
There simply cannot be new 'pixels' appearing that were (i.e. before applying the effect) hidden from objects in the cameras line-of-sight. This is evident upon closer inspection (look at edges around the approximate middle of the DOF). The trompe-l'œil then falls a bit apart.
Interestingly, I did not notice above with the IOS7 background parallax; I'm wondering why? Special images, or a stricter constraint on movement?
Re: Parallax effect from Google Lens Blur photos
#6Surprisingly well faked in face of the fact that there's no real 3D information in the pictures. There simply cannot be new 'pixels' appearing that were (i.e. before applying the effect) hidden from objects in the cameras line-of-sight. This is evident upon closer inspection (look at edges around the approximate middle of the DOF). The trompe-l'œil then falls a bit apart. Interestingly, I did not notice above with th…
Yeah, it appears to be a regular JPG with a depth map added to the metadata. Originally Google uses this for refocusing, but the parallax is a neat trick
Re: Parallax effect from Google Lens Blur photos
#7Surprisingly well faked in face of the fact that there's no real 3D information in the pictures. There simply cannot be new 'pixels' appearing that were (i.e. before applying the effect) hidden from objects in the cameras line-of-sight. This is evident upon closer inspection (look at edges around the approximate middle of the DOF). The trompe-l'œil then falls a bit apart. Interestingly, I did not notice above with th…
Indeed -- there are a bunch of spots where, if you look closely, you can see the foreground texture being "repeated" in the background texture, when you've moved your cursor to the edge. I wonder if a better kind of pixel-filling-in algorithm could make this more believable, or if the problem is with the inherent inaccuracies of the depth map.
But still, as a whole it's remarkable effective. I'd like to be able to appreciate it without moving my mouse -- I wonder what kind of camera movement function, at what speed, would make for the most unobtrusive effect that would still give the perception of depth?
Re: Parallax effect from Google Lens Blur photos
#8It might be helpful to separate the code that creates the parallax effect from the angular app that displays the website & examples. This is a really cool trick and it would be nice to be able to easily reuse it. For those looking, it seems like the "magic" happens in a couple of spots (I think):
https://github.com/panrafal/depthy/blob/master/app/scripts/p...
and in
https://github.com/panrafal/depthy/blob/master/app/scripts/c...
Re: Parallax effect from Google Lens Blur photos
#9Surprisingly well faked in face of the fact that there's no real 3D information in the pictures. There simply cannot be new 'pixels' appearing that were (i.e. before applying the effect) hidden from objects in the cameras line-of-sight. This is evident upon closer inspection (look at edges around the approximate middle of the DOF). The trompe-l'œil then falls a bit apart. Interestingly, I did not notice above with th…
From my understanding there actually is 3D information reconstructed via sfm from the hand jittering. Only few points and of questionable quality but enough for the foreground extraction (for blurring).
Re: Parallax effect from Google Lens Blur photos
#10Surprisingly well faked in face of the fact that there's no real 3D information in the pictures. There simply cannot be new 'pixels' appearing that were (i.e. before applying the effect) hidden from objects in the cameras line-of-sight. This is evident upon closer inspection (look at edges around the approximate middle of the DOF). The trompe-l'œil then falls a bit apart. Interestingly, I did not notice above with th…
It's exactly that - single image, and a depth map calculated from a series of shots made upwards. Both these are bundled in a fake-bokeh image. There is obviously no more pixels. However...
If you choose your subject wisely, the effect can be pretty believeable, using a simple displacement map.
On iOS though it's something different. There's no depth map in there, just a flat image moving counterwise to your hand movements.