Show HN: Remove backgrounds from images online

Post by [deleted] » Thu, May 09, 2013, 9:47 PM UTC

[deleted] wrote: post #21

[deleted]

Post by Bjoern » Thu, May 09, 2013, 9:51 PM UTC

jrd79 wrote: post #17

Bjoern wrote: post #15

Earlier quoted context omitted.

Like the interface! :) There are many ways to solve such a problem. Another one beside GrabCub would be e.g. Watershed. https://en.wikipedia.org/wiki/GrabCut http://en.wikipedia.org/wiki/Watershed_%28image_processing%2... So many variations available via e.g. OpenCV.

(I'm one of the devs.) Regarding the segmentation phase, we were not satisfied with any existing algorithms because we wanted the tool to be as real-time as possible (for up to 4 megapixel images), so we rolled our own segmentation algorithm that has some similarities to GrabCuts (not GraphCuts). But the binary segmentation is really only a small part of the technical challenge. You also need to figure out how to ant…

Post by jacobn » Thu, May 09, 2013, 9:57 PM UTC

alexchamberlain wrote: post #25

StavrosK wrote: post #19

Worked pretty well for me: http://i.imgur.com/db0QOet.png

Wow! Anyone know the stack?

Post by jrd79 » Thu, May 09, 2013, 10:00 PM UTC

Bjoern wrote: post #24

jrd79 wrote: post #17

Earlier quoted context omitted.

(I'm one of the devs.) Regarding the segmentation phase, we were not satisfied with any existing algorithms because we wanted the tool to be as real-time as possible (for up to 4 megapixel images), so we rolled our own segmentation algorithm that has some similarities to GrabCuts (not GraphCuts). But the binary segmentation is really only a small part of the technical challenge. You also need to figure out how to ant…

I think you guys did a great job. This is a very tough problem (speaking from experience) particularly depending on the complexity of the image. One problem we had to solve along the way for our startup is similar, but focused only on fashion related images. Quite tricky particularly if you want something automatic. Anyway cheers! :)

Post by matchu » Thu, May 09, 2013, 10:03 PM UTC

jacobn wrote: post #11

stmchn wrote: post #10

Really neat. I was really itching to use CTRL+Z though. I screwed up the first image I tried to clip. Maybe have a walkthrough of the features when the user first uses it? I didnt notice the help button until it was too late. I thought if I closed out of the editor and clicked on the image again, it would let me start over but it just takes you back to the editor. It would be nice if there was a way to redo editing t…

Yeah, we need to add both undo and reset/clear. The help should have shown during the upload / init!?