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Hey, I have been mosaicking another dataset from 2006 aerial photography (RGB, 3 band) and have run into a similar problem. In some cases I am still getting blue sections on my image in the shape of triangles (please see attached image in original thread) while in others I am getting these areas completely blanked out by white triangle shapes. I have tried almost every possible combination of the "mosaic colour map" and "mosaic operator" defaults, however, nothing seems to be working. Sometimes a certain combination will reduce the number of blank areas to just one or two areas rather than three or four. However, I was hoping to have no blank areas as I am calculating changes in landcover betwen the 1977-2006 and this will affect my results. Cheers and thanks for your time, Chloe.
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08-16-2012
08:16 PM
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Hey, I had a similar problem, however, instead of black patches I was getting white or blue/pink overwashes. The person who replied to my thread suggested a similar thing to Carrie which was to change up the mosaic operator and colour map defaults and that worked well for me. It just might take a few tries to work out which options work best. The reply I got to the thread I posted is at -- http://forums.arcgis.com/threads/64152-Mosaicking-to-new-raster -- if you wanted to have a look and see exactly what that person said.
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08-16-2012
06:35 PM
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Hey, I have a a series of 5 images covering a stretch of coastal sand dunes and a orthorectified basemap covering the entire area. A number of the photos in the series have very few ground control points (GCPs) as the area is part of a national park while some of the images do contain headlands and one or two buildings. I was wondering if it is possible to rectify/georeference the images with no GCPS to both the orthorectified basemap AND one of the other images in the series (that do contain headlands) simultaneously? Alternatively, if I had images 1, 2 and 3 in the series and images 1 and 3 have GCPS but image 2 does not, could i georeference image 2 to both images 1 and 3 simultaneously? That way areas of overlap (e.g. patches of vegetation) could be used as the GCPs. Cheers, Chloe.
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08-12-2012
07:41 PM
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Hey Pavan, I changed the settings to see if it made a difference and at first it did not. However, after changing the settings for the mosaic operator etc I switched them back to the original defaults and it worked :). Thank you very much for your help! Cheers, Chloe.
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08-12-2012
03:45 PM
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Hey, I have been able to mosaic a series of 4 aerial photographs into a new raster layer, however, the output raster each time has this blue or pink wash over some of the photos that I do not know how to get rid of (please see attached file). No matter how many times I re-do the mosaic it still happens. It also continues to happen when I "mosaick to an existing raster layer", not just in the "mosaic to new raster". Any help would be greatly appreciated! Cheers
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08-07-2012
05:45 PM
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