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News: Last Video Enhancer version: 2.2
 
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Author Topic: Gradient Shop  (Read 21202 times)
Milardo
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« on: February 10, 2012, 07:34:23 AM »

Hi, just wanted to share an interesting program-Gradient Shop.

www.gradientshop.com

I emailed the author about using this for video-waiting to see if it works for me.

The results page look very interesting. Although you can use this program for video, it only accepts image formats. A combination of deblocking and that saliency sharpen could really improve video. It would be great if somebody would develop this program further. What does everybody else think?
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Dee Mon
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« Reply #1 on: February 10, 2012, 12:51:48 PM »

Interesting stuff, thanks for the link!

They write in the PDF paper:
"Our unoptimized C++ code currently spends a few seconds for one megapixel
images and nearly one minute per video frame (at 800x600 resolution)
starting fromthe application specific filtering to the full 3D optimization."

So there's much room for optimization but definitely it's an interesting technique.
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Milardo
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« Reply #2 on: February 12, 2012, 04:09:17 AM »

Just wondering, how hard would it be to make a directshow filter out of those-saliency sharpen/deblocking?
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Dee Mon
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« Reply #3 on: February 13, 2012, 08:00:33 AM »

I guess pretty easy, since they've provided source code for the main engine.
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Milardo
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« Reply #4 on: February 13, 2012, 08:29:20 AM »

Really? Cool. I'm no developer so I wouldn't know what to do, but I would like to request if your company would either integrate these techniques into video enhancer or a virtual dub filters or directshow filters. If you are busy now I can wait, no problem. I had emailed the author before and had provided me with samples for the video processing but as before they still only accept images or sets of images. I couldn't get saliency sharpen to work either and the binaries all work by commandline there isn't a gui, quite difficult to use, but output seems amazing. Let me know thanks in advance.
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Dee Mon
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« Reply #5 on: February 15, 2012, 10:49:38 AM »

We'll try to do that when we have some spare time. Really interesting to see that thing in action.
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Milardo
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« Reply #6 on: March 21, 2012, 04:40:46 AM »

Hi, just wondering, any news about the filter, thanks in advance.
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Milardo
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« Reply #7 on: August 29, 2012, 03:27:29 AM »

Hi, any news or updates on this?
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Dee Mon
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« Reply #8 on: August 29, 2012, 09:58:14 AM »

As I mentioned in an email some time ago, building this code to a filter requires a lot of work due to amount of libraries and dependencies involved. We will not do it in foreseeable future.
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Milardo
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« Reply #9 on: May 09, 2013, 03:03:02 AM »

Any updates on this?
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Milardo
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« Reply #10 on: November 27, 2015, 08:26:16 PM »

http://grail.cs.washington.edu/projects/gradientshop/

Actual site still up. Dee Mon, have you had anytime to look at this program? I came across it again and i remembered after emailing a developer who may no longer work on it, that it could help a lot in a video that is pixellated, badly compressed, etc. Let me know thanks.
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