User:Nrp/Weekly updates/20080705

From OLPC

[edit] Saturday

• Researched connected components extraction

[edit] Monday

• Continued connected components research

[edit] Tuesday

• Started writing a connected components function using decision trees and array based union-find. As far as I can tell, this is the current state of the art in connected component algorithms.

[edit] Wednesday

• Finished the connected components function and tested it. It still needs more testing, and I have to come up with a way of tracking the number of pixels in each connected component without needing another pass of the array. Then I can plug it into pygame.mask

[edit] Thursday

• By some miracle, changing the function to get the largest connected component actually worked on the first try. Now its just a matter of integrating it with masks and seeing if it'll run at a usable speed on the XO.

[edit] Friday

• Integrated largest connected component function into pygame.