AdamBrunt wrote:

Or, as we suspect, is this down to there being no overlapping between the two images ?

Correct - shoot 3-around rather than 2 and all will be fine.

Aim for 25-30% overlap between adjacent images.

mediavets wrote:

AdamBrunt wrote:

Or, as we suspect, is this down to there being no overlapping between the two images ?

Correct - shoot 3-around rather than 2 and all will be fine.

Aim for 25-30% overlap between adjacent images.

One must first select "fisheye" in the image settings, then input an approximative but viable estimated focal length and also set the proper crop circle.
APG doesn't auto-create CP with only a pair of such fisheye images:(

If you carefully put manually some valid CP all around each of the half-hemispheric images, APG should do a fine stitching job. At least, it did for me:
http://michel.thoby.free.fr/AdamBrunt.jpg
You may finally manually move/rotate the panorama image in the editor to straighten the vertical lines... vertically.

Michel

Hi Georg,

I have used APG 3.0.4 and I inputted 4 mm for the lens focal length (just to start with a short value).
BTW: APG apparently used the EXIF to detect Nikon CP 990 as the camera and thus updated the focal to 19.6 mm (i.e. sensor scaling = 4.9). APG finally yielded 7.34 mm after optimization. This was done without distortion correction as both Nikon CoolPix fisheye converters approximate equidistant projection reasonably well.

Michel

mediavets wrote:

gkaefer wrote:

which apg Version did you use? and which focal did you estimate/use?
thanks,
Georg

Michel beat me to it.

I used APG 3.0.3 32-bit on Windows XP.

The images were shot with a Nikon Coolpix 990 - as shown in image properties - so the fisheye convertor used must be the Nikon FC-E8 which has approx. x0.21 conversion factor, set that in image properties, you also need to change lens type from Standard to Fisheye.

Then change Group settings to force the images into the pano and detect.

Use the Control Points Editor to create CPs between the images and optimise.

Orientate the pano using the Vanishing point and Vertical lines tools.

...............

It will still be easier with 3-around rather than 2-around.

ok. but I checked all that now with apg 3.0.5 . with absolute no positive result. simply nothing no way. I cant be more negative... ;-(
no CPs, not correct focal (massive spaces between the Images after detection, no auto-CPs, no Manual CP to be found, no fanishing possible...
(I'Ve to force all Images to be in one pano and to use high Quality, have to use the one row layout so detection at all does succeed...)

Georg


EDIT: I had to uninstall apg 2.5, 2.6 and 3.0.5 and reinstall apg 3.0.5 to have with same Settings now success... (screeenshot...)

Last edited by gkaefer (2013-03-13 22:01:09)