User:Nrp/Weekly updates/20080712

From OLPC

[edit] Saturday

• Performance testing on largest connected component. It runs at a usable speed on the XO, and about twice as fast as the other connected components function in pygame.

[edit] Sunday

• Started writing a function to get the average color of a surface or a part of a surface.

[edit] Monday

• Finished average color function, wrote an example script to show its use.

[edit] Tuesday

• Worked on improving the performance of functions that access surfaces.

[edit] Wednesday

• Finished performance improvements: average_color is 4x faster, threshold is 2x faster, and mask.from_surface is 2x faster when using per pixel alphas.
• Documented connected_component a little better

[edit] Thursday

• Added support for a second surface back into threshold
• Applied the same performance improvements to average_surfaces
• Got rid of the gcc warnings that I could get rid of

[edit] Friday

• First attempts at integrating my camera stuff with Physics
• Wrote an example script that shows the basic process of combining get_image, colorspace, average_color, threshold, connected_component, and centroid to do hue based object tracking.