Show HN: Remove backgrounds from images online • Hacker News Board

Re: Show HN: Remove backgrounds from images online

#41

Post by abimaelmartell » Thu, May 09, 2013, 10:12 PM UTC

Scala & Play Framework :P

Re: Show HN: Remove backgrounds from images online

#42

Post by anonymoushn » Thu, May 09, 2013, 10:14 PM UTC

I got a bunch of "Failed to get a worker assigned: undefined" for a bit, but once that stopped happening and I figured out the zoom, it was very impressive: http://i.imgur.com/WT4bH5M.jpg

Re: Show HN: Remove backgrounds from images online

#43

Post by jacobn » Thu, May 09, 2013, 10:14 PM UTC

mcescalante wrote: post #39

Adding a "step-back" button (even if it was only a few states), and the ability to increase or decrease brush size would greatly enhance this. Great start though, and something like this is much needed for a lot of people who may not know an image editor, or don't want to open it for something simple.

Undo is sorely needed.

Just deployed a smaller brush size (30px instead of 40px when zoomed out).

It should get picked up when you reload the page (though default asset caching might hold it for another hour. Well, well)

Re: Show HN: Remove backgrounds from images online

#44

Post by wbharding » Thu, May 09, 2013, 10:14 PM UTC

Also available, and newly made free: http://www.bonanza.com/background_burns

Pros: Doesn't require the fg/bg coloring step needed here, just figures out your FG without intervention. Cons: Have to register for an account to access it currently, but can use FB or Google to register

Re: Show HN: Remove backgrounds from images online

#45

Post by jacobn » Thu, May 09, 2013, 10:17 PM UTC

cheeze wrote: post #38

Is anyone else getting an error? "Network Error We are having trouble connecting to the server. The following tasks have been unable to complete: Connecting to worker "Unable to connect to the worker." Waiting" This is occurring after I drag and drop an image

Sorry, that's me being slow scaling out the backend. I've added a couple more boxes. (Haven't added auto-scaling yet)

Re: Show HN: Remove backgrounds from images online

#46

Post by jacobn » Thu, May 09, 2013, 10:21 PM UTC

abimaelmartell wrote: post #41

Scala & Play Framework :P

Yup, they're pretty sweet ;)

Re: Show HN: Remove backgrounds from images online

#47

Post by Presence » Thu, May 09, 2013, 10:25 PM UTC

Pretty neat! http://imgur.com/p1B9Hng But sharing the shift key as the hotkey for erase & panning made Windows's "Sticky Keys" dialog appear a couple times.

Re: Show HN: Remove backgrounds from images online

#48

Post by tunnuz » Thu, May 09, 2013, 10:31 PM UTC

Works great!

Re: Show HN: Remove backgrounds from images online

#49

Post by sjtrny » Thu, May 09, 2013, 10:34 PM UTC

I actually wrote my honours thesis on this topic. In academia it's called Alpha Matting/Image Matting.

There's a great website http://alphamatting.com/ that provides a benchmark dataset and a comparison of a lot of influential methods.

I applaud your work in making a real time and interactive matting algorithm! One day it might be also as accurate as state of the art methods. You guys should write a paper about your method.

Re: Show HN: Remove backgrounds from images online

#50

Post by jacobn » Thu, May 09, 2013, 10:35 PM UTC

Presence wrote: post #47

Pretty neat! http://imgur.com/p1B9Hng But sharing the shift key as the hotkey for erase & panning made Windows's "Sticky Keys" dialog appear a couple times.

Ah. Good point. We recently changed the shift key from "hold to pan" to toggle between pan / erase. Should probably change it to another key now that the operation is different.