[hugin-ptx] Re: How Does Hugin Calculate EV (Eev)?

2010-02-01 Thread T. Modes
Hi, > >  * Should Hugin be calculating EV taking ISO speed into account? > > I think it probably should.  I had noticed this too with > auto-exposed photos, but ignored it. Hugin is reading "Exif.Photo.ISOSpeedRatings" and using it for calculation of the ev value. So it should take the iso value

Re: [hugin-ptx] Re: How Does Hugin Calculate EV (Eev)?

2010-02-01 Thread Bruno Postle
On Mon 01-Feb-2010 at 10:15 -0800, Chris Parrish wrote: Ok, so perhaps I've found a Hugin bug. The EV's I posted earlier were auto calculated by Hugin when I added my JPEGs to the project. I just selected them all now and did a reset in the camera tab (selecting only to reset the EXIF values), a

[hugin-ptx] Re: How Does Hugin Calculate EV (Eev)?

2010-02-01 Thread boardhead
Use the exiftool -n option to avoid the print formatting which is reducing the number of displayed decimal points. The exiftool LightValue calculation uses these values. - Phil -- You received this message because you are subscribed to the Google Groups "hugin and other free panoramic software

[hugin-ptx] Re: How Does Hugin Calculate EV (Eev)?

2010-02-01 Thread Phil Harvey
use the exiftool -n option to bypass the print formatting which limits the number of decimal points displayed. -- You received this message because you are subscribed to the Google Groups "hugin and other free panoramic software" group. A list of frequently asked questions is available at: http

[hugin-ptx] Re: How Does Hugin Calculate EV (Eev)?

2010-02-01 Thread Chris Parrish
Ok, so perhaps I've found a Hugin bug. The EV's I posted earlier were auto calculated by Hugin when I added my JPEGs to the project. I just selected them all now and did a reset in the camera tab (selecting only to reset the EXIF values), and now they are all properly (consistently) calculated. W

[hugin-ptx] Re: How Does Hugin Calculate EV (Eev)?

2010-02-01 Thread Chris Parrish
Actually, it looks like Hugin is not compensating for ISO Speed. The values that it's using are more like: ( 2*log($aperture) - log($et) ) / log(2) I'm not sure if that's a bug in Hugin or intentional. And I can't find any documentation that shows that EXIFTOOL calculates EV at all. Does/can i

Re: [hugin-ptx] Re: How Does Hugin Calculate EV (Eev)?

2010-02-01 Thread Nicolas Pelletier
Chris, I've recoded some of this in python. If this is what you're scripting, msg me and I'll send it to you. nick On Mon, Feb 1, 2010 at 4:11 AM, bruno.postle wrote: > On Feb 1, 6:28 am, Chris Parrish > wrote: > > I am building a script that batch creates PTO and PTO.MK files for > > sets of p

[hugin-ptx] Re: How Does Hugin Calculate EV (Eev)?

2010-02-01 Thread bruno.postle
On Feb 1, 6:28 am, Chris Parrish wrote: > I am building a script that batch creates PTO and PTO.MK files for > sets of pano images.  I do this based on templates of these files (I > use a pano head allowing me to reuse the same script settings in these > templates). > > The problem is that, while