Hullo All, On Sep 7, 2:26 am, Bruno Postle <[email protected]> wrote: > As well as gpu-stitching, the hugin-2009.2.0 beta also has another > new feature 'seam blending before exposure fusion'.
Brunos new tutorial fired me up to experiment with the new blend and fuse stitcher options. Firstly, my camera has auto exposure, and no exposure bracketing, so I tried a few hand held tests, with the first pair of photos with EV set to (say) +1, then repeated with EV set to -1. I had very poor results from all these tests, partly due to the difficulty of getting a reasonable repeat of the first set of pics with hand held, but also because there wasn't the expected difference in EV between each set. I think I need to to read up a bit more about what exactly the camera is doing when one sets an EV. In short, no real success. I then borrowed a camera capable of exposure bracketing, and shot a few pano sets (two overlapping photos, each with 3 EV, -1,0,+1). These produced results and some were quite good, but there were a few unexpected things. Hugin would do sensible things with landscape format sets of photos. All portrait sets were a complete disaster. Hugin appeared to be totaly confused by it all and passed that onto me! For one test I set the stitcher to produce (1) blended pano, (2) fused and blended pano, and (3) blended and fused pano. I chose 'stitch' as the output filename. I ended up with (a) stitch.jpg, (b) stitch_blended_fused.jpg, and (c) stitch_fused.jpg. Output (a) was the typical result, and I assume due to (1). Output (b) clearly showed the boundaries of two images, as if different exposures had been superimposed without any blending. Not suitable as final product. Output (c) was a good result and what I had been expecting from (3). I am not really sure which of the stitcher choices (2) and (3) produced outputs (b) and (c). I would suggest that the output naming could be more consistent with the stitcher choices i.e. 'fused and blended pano' produce fred_fused_blended.jpg and 'blended and fused pano' produce fred_blended_fused.jpg. I also noticed that if I has set the stitcher to produce a 'blended pano' and a 'blended and fused pano', after completion the stitcher tab has the 'fused and blended pano' and the 'blended and fused pano' set and 'blended pano' unset. If I then selected to start a new project the stitcher settings would revert to my original settings (i.e. 'blended pano' and a 'blended and fused pano'). I still have some more work to do to come to grips with these options, and hopefully my observations of some of the odd behaviour can be confirmed by others. Cheers, Terry --~--~---------~--~----~------------~-------~--~----~ 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://wiki.panotools.org/Hugin_FAQ To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/hugin-ptx -~----------~----~----~----~------~----~------~--~---
