Life In 19x19

At the end of it, you'll have about 1000 sample images with known grid corners and known stone positions. Once you've done it a couple of times, you could probably gather 1000 images with 30 minutes of human effort. A few hours would give you 10,000 samples - and you'd have the lines found, the ...

Did you upload it to github? If not, can you share it some way?

Python is notoriously picky about spacing, so you might need to fix up all the indenting, but this might work:


"""Unoptimized pcf module - rewritten to avoid having to compile pcf.c
"""

import Image
import math

def combine ...

GregA: Cool ideas! Now can you please transform that to actual code...? (I think when Tomáš tried some similar approaches, it turned out that stones are in fact often quite unaligned with the grid.)

I'll see what I can do. Has anyone got this running under windows? I'm looking for the shortest ...

You could do hough line filter and hough circle filter on the square around where you expect the stone. If there's a stone, you'd expect a circle and only very weak lines crossing through the center (if any). If there's no stone, you'd expect no circle detected and two strong lines. You could run ...

Nice work! For improving tolerance for glare, you could make use of the fact that stones are generally ellipses on intersections, with the gaps in the center between grid lines being bare board. If you cut out a square from the perspective-adjusted image, the center is the stone (or lack of a stone ...

A related book on the subject:

The Protracted Game: A Wei-Ch'i Interpretation of Maoist Revolutionary Strategy by Scott A. Boorman, Oxford University Press 1969

m

It's a pretty interesting read - if you are interested in go, revolutionary politics, and strategy, and don't mind the fact that it ...

http://www.ymimports.com/p-1118-shin-kaya-12-go-board-chinese-standard-size-reversible-chinese-chess-and-yunzi-set.aspx

I have eyed this table board for a few years now, and I have always wanted go bowls with a board like this. My parents just gave me the Christmas money they owed me and I made a ...

The question mark isn't a big deal. Just play some ranked automatch games with preference for rank close to yours and it will settle out pretty quick. That's what I did. And by the way, I reached 9 kyu after about 30 19x19 games, 5000 9x9 igowin games against the computer, quite a lot of go problems ...

Hi,
Myself, I'm trying to decide between JangStone I or II, or Yunzi single / bi-convex stones. Both seem nice.

Is there any 'standard' thickness for stones? Do you find thinner or thicker stones nicer / easier to play with / more authentic?

I got these from YMI, though they seem to be sold out ...

I should add that my next step actually was to try to gather a large collection of images and corresponding sgf files. I could then build a database with the "correct" board corners, and then I could have a test suite that runs each portion of my code through the whole set and generates a report of ...

Thx greg,
were you successful with that? Right now, I don't have any idea on how to recognize a board full of stones other than brute force.
And because the picture of the board is a "function" of 4 (important) variables (2 rotations and 2 translations) that would take forever.
And additionally, in ...

Very impressive! I've put my project on a hold a bit as my work has heated up lately, but I plan to put my code up on an opensource site like google code and do some more work on it. I've mostly focused on the problem of automatically detecting a board from a single image, regardless of how many ...

Hi, I got my new set of slate and shell stones from Kuroki Goishiten in the mail last week and I think their defective. When I place them on the board, they fall over. I've filed down the edges to create a flatter surface but they won't stay up. I paid over $1,200.00 for these stones and I think I ...

I'm looking to get some new stones. I already have two sets - one I bought used with my board and bowls. They're nice enough for me, but there's only about 145 of each color. I find that sometimes when I play my beginner friends and give them a 9 stone handicap, they're running out at the end of the ...

I think it's very sad that Don has been badmouthed, as I certainly don't think he deserved that with the time and effort he put in.

However, at the same time, he obviously doesn't have the capacity (time or energy) to steer the framework for the community any more, and I don't feel bad that we ...