[ptx] Distinctive image feature form SIF

[Guillaume Brice Mainbourg]

Hello Xianyong,

I am sharing the same problem that you used to have on the David Lowe's
paper ( see your email on March 2 2004).

I get usually 6 points. Would tell me how to build the next octave level's
DOG images? In addition, would you tell me what to do with this?

I hope that, thanks to your help, I will get more than 6 points.

Thanks in advance,

guillaume