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Gigapan Comments (2)

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  1. Paul Heckbert

    Paul Heckbert (November 18, 2010, 07:45AM )

    I would add: missed photos are most often caused by time per pic (in gigapan panohead) set too low. The proper time per pic depends on exposure time and camera's processing speed and memory card speed. Your exposure time is short, so I don't think that was it. SDHC memory card "speed class" is indicated by the circled number on the card. Some cards are slower than others. Wikipedia has info on that subject. I recommend speed class 6 or higher. Typically 2.5-3.5 sec is sufficient time_per_pic, but watch the camera closely as it shoots pictures to see that it's getting each one. The indicator light should blink after each one. If it's not, increase time_per_pic and try again.

  2. Chris Fastie

    Chris Fastie (November 17, 2010, 11:19AM )

    Brett, Nice view. This is a really good “Select Images” puzzle. See Paul Heckbert’s comment on this gigapan gigapan.org/gigapans/64767/. After a gigapan is stitched, you can’t redo (or even see) the image grid. Paul’s workaround is to make a copy of the xxxx.gigapan file with a new name and open it. The black stripe is mysterious. Either you are missing about four images there, or the camera moved so there was not enough overlap (and then moved back which is unlikely). You might try starting again with all the original photos. If an individual photo is missing, copy an adjacent image to a filename that places it in the hole. This will usually leave a black hole in the stitched panorama (the copied image gets aligned on top of its master), but at least you can see your otherwise entire panorama. Because you have lots of overlap, creating a missing photo is not so hard; most of it already exists in the adjacent photos, and the rest can be cloned. This technique is invaluable when you take a really important gigapan which is missing a critical photo. When doing experiments like this, keep notes on the gigapan data folder names so you can delete the ones you don’t need.