Final resolution less than what I expected

47 views
Skip to first unread message

dcuste

unread,
Jul 12, 2015, 6:12:18 PM7/12/15
to hugi...@googlegroups.com
I want to print out a 3'x5' post at 300dpi. My camera (Sony Alpha 65) is 6000x4000 pixel. I used 6 shots with about a 20% overlap. Three above and three below. I figured that would give me about 18,000 X 8000 less 20% or 14,400X6400 final panorama and a size of 6MBX6=36MB less 20% = 29MB. Hugin did a beautiful job of stitching and blending and the final jpg file was huge at 48MB and covered all of the scene that I expected. But the final jpg image is only 10,100X4,300 pixels. Not good enough for my printer. Why is the file size so large and the pixel number so small? Will this print out like it was higher resolution than the pixel count would indicate? BTW, I'm using version 2013.0.0.0d404a7088e6 because all I have is a 32 bit windows PC. Is there another program out there that will give my a higher resolution? I tried Photo Shop Photomerge, but I only 2GB of RAM and it wants more. I think the Hugin results are better too.    

Terry Duell

unread,
Jul 12, 2015, 6:56:36 PM7/12/15
to hugi...@googlegroups.com
On Mon, 13 Jul 2015 08:09:02 +1000, dcuste <dcus...@gmail.com> wrote:

> I want to print out a 3'x5' post at 300dpi. My camera (Sony Alpha 65) is
> 6000x4000 pixel. I used 6 shots with about a 20% overlap. Three above and
> three below. I figured that would give me about 18,000 X 8000 less 20% or
> 14,400X6400 final panorama and a size of 6MBX6=36MB less 20% = 29MB.
> Hugin
> did a beautiful job of stitching and blending and the final jpg file was
> huge at 48MB and covered all of the scene that I expected. But the final
> jpg image is only 10,100X4,300 pixels. Not good enough for my printer.
> Why

Depends on your settings.
In Preferences -> Assistant tab you can set "Downscale final pano" to
100%, and in the Stitcher tab, click on "Calc optimal size" prior to
stitching, which should ensure the max sized pano.

Try those settings, if you haven't already, and see if they help.

Cheers,
--
Regards,
Terry Duell
Reply all
Reply to author
Forward
0 new messages