I have a number of tiff images. They are 1-band 8 bit unsigned rasters, with a colormap stored internally. When I try to create a mosaic dataset from them the resulting dataset is shown as 3-band RGB, which really doesn't matter for me. The problem is that color index 0 which should be white is replaced with NoData, which results in white areas are showed as transparent.
I wonder if anyone has found a way to force color-index 0 to remain as color-index 0 even after building a mosaic dataset from the data.
Niklas, did you ever find a solution for maintaining colormaps through the mosaic process? I have 100 rasters (same area , different time periods) with colormaps that I need to put into a mosaic dataset before pushing out as a time-aware image service. Any thoughts are appreciated.
The solution for me was to apply a colormap function to the mosaic dataset. After exporting the colormap as a .clr file, use ArcCatalog to add the colormap function by right-clicking on the mosaic dataset. By applying the colormap to the entire mosaic dataset, all rasters will be symbolized the same.
