Skip to comments.Adobe shows off new 'undo photo blur' feature
Posted on 10/13/2011 11:59:03 AM PDT by Red Badger
(PhysOrg.com) -- Despite all the advances in digital photography, most people are still plagued by the problem of blurry photos, a problem compounded by the use of cameras embedded in cell phones due to their small size. Problems of blurring generally can be divided into two types. The first is problems with focusing, which can usually be avoided if the camera operator will simply wait for the automatic focusing feature of their camera to do its job. The second type is much more difficult to solve as it involves camera movement while the image is being shot. Its this second problem that Adobe has been working on as part of its Photoshop imaging software package. And based on a video shot by someone identified only as peterelst who posted it on Youtube, a recent demo of a new feature, or "sneak" as Adobe calls it, seems to indicate that they have made significant progress.
The technology behind the new feature (that may or may not actually wind up in Photoshop according to company reps) involves an algorithm based on the idea of blind deconvolution, which is where an iterative process is used to facilitate a point spread function. The idea is to calculate the speed at which the camera was moving when the picture was snapped so as to undo its effects. Or in other words, it attempts to reconstruct what the camera lens would have seen but for the movement. This is in stark contrast to current de-blurring functions in Photoshop and other image editing software which analyze an image looking for lines that form edges and bolsters them to make them appear sharper. The results with the new technique, at least in the demo, appear to be quite dramatic.
With the new feature, the photo is first loaded onto the computer and into the Photoshop type app, then some predefined parameters are loaded that more clearly define what sort of image is to be looked at. The image is then analyzed and a grayscale thumbnail (blur kernel) is displayed which shows how the image was blurred. Next a restore feature is activated and the blurred image is replaced with the newly sharpened image.
Despite this bit of theatrics by Adobe and lots of gushing by mainstream media seemingly intent on describing the new technology as the end of blurry photos, things are not quite as rosy as all that. This is because if the new feature is indeed added to Photoshop, it will still be out of most peoples grasp due to the high price of the product. Very few are likely to shell out hundreds of dollars to just to clear up a few images taken haphazardly on their cell phones or even their cameras. What really needs to happen is for this technology to be implemented in cameras so operators will never know they blurred their image by jiggling their camera in the first place.
VIDEO AT LINK............
Evil capitalists strike again!!!!
Don’t believe it. Too easy to show these so called samples.
Like how do those red distant flowers not get processed into focus too.
I call BS on that sample. Thats a focus blur problem, not a motion blur problem.
What more need be said?
Could be a selection algorithm set for foreground or based on aperture setting in metadata. Could ALS be done
Manually by blurring the backround back in with a layer mask.
The red flowers are outside the focal point of the lens, and were never in focus in the photo. Can undo what wasn’t done.
While I’m not doubtful of the advances Adobe has made, I am very doubtful of these before-and-after images. That’s not a motion blur, it’s a gaussian blur applied to the original.
That it can increase the signal to noise ratio and decrease the entropy of the image.
This should be useful for Japanese porn.
Call me old fashioned, but learning how to use a focus ring would be quicker and easier.
Yes, the real test of this feature’s effectiveness would be a low light image in focus of a moving object using a slow shutter speed and low ISO setting without using flash.
Shadow Ace has the Digital Technology Ping list.........
But the video is pretty interesting! Those results look more likely. Very impressive.
...and you would know this because..........?
That’s pretty cool