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Messages - miyake

#326
I need a lot of time for writing English(lol .
I got 2 reply during writing this document. First, I replay to Alex.

Alex, I also think so, when reading a code. But my sony NEX3 is sometime move the AF point to most far/near. But almost good for me. So I think it's not important thing.
For example, I'm sometime use a stabilizer and crane. I can't touch focus ring when the camera on these equipments. It's better than nothing.
And I understood that I need to guesswork on movie_af for searching focus peak.


1% and nanomaid my confusing points under follow:
----
I just reading the original code today.Now I need to understand all of original code.

1: Live view buffre is YUV422 . correct?
2: I don't know how to get contrast from YUV 422 buffer(Y is luma, but we can use this for contrast comparering?)
3: In focus.c , it's using buf
  • but not defined . where defined it. I guess it's a Live ViewBuffer.
        (buf
  • is defined anyware, so grep is not working for finding it.)

    My understanding for contrast AF.
    Most higher contrast = in focus
    Is this a correct thing?

    Basically, I'm usually writing a TCP/IP code . So I have no experience to write a graphic handling codes.I need more study for understanding graphic handling and algorithms.

    P.S. already midnight in my country. Time difference is a little hard to collaborate with international community. Also I'm writting a Japanese FAQ on wiki side. Become a little slow for this activity..

    P.S.2 Thank you for reading my poor English.
#327
Thankyou and I will try it.

Also Thankou very much for built this great website. great job!!
#328
Thanks for your reply.
I just found "Register" button.

But miyake is already existing, and miyake_t is
"Looks like there was an error on sending the password mail. Please contact the admin!"

Please check miyake entry and above error log.
I guess , "miyake" is japanese name. so somebody doesn't use it.

Does forum account and wiki account is separated ?
#329
I'm not native English speaker  , so we are little difficult to know all of things.
So I want to write FAQ page for Japanese speakers.
How to login it?
#330
General Development / Movie autofocus experiments
July 17, 2012, 03:53:50 AM
I guess , this function's position like "50D video shooting". Basically we can't use MovieAF in our old cameras.But this function will provide capability for it. So more supporter will participate to this project.

Anyway, I'm interested in this function, and now I'm acquire and tuning the codes. AF moving is more faster than original. Still not perfect  but working. and It's a extremely noisy and battery eater (lol
But it is not converge to AF point. So this function need to apply more good formula for calculating focus distance from live view buffer. Or need a converge code.

Does any other developer existing who is interested in this function  ?

I can coding by C , but I'm not expert for analyzing graphic.