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Posted by Sam G. on July 5, 2004, 12:04 am
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> You might be interested in John CHild's website:
> http://www.terrainmap.com/index.html
> For example, this article:
> Landsat HSL Composite from Panchromatic Band
> http://www.terrainmap.com/rm29.html
>
> Also, you might be interested in Chips:
> http://www.geogr.ku.dk/chips/
> Although it doesn't address the issue of pansharpening,
> I have an explanation on my webpage of how to use Chips
> to create a 3-band composite image:
> http://members.shaw.ca/davepatton/landsat7.html#colorcomp
>
> I haven't used it, but AlphaPixel's PixelSense may do what
> you want:
> http://www.alphapixel.com/products/pixelsense/
I've tried the terrainmap method but I have two issues with it. First
is that it appears to strip the tiff header so that output images are
not georeferenced anymore (while multispec leaves the image header
alone). Second, I run into "not enough memory to complete operations"
problem. This cannot be helped regardless of virtual memory settings
so it seems PSP will not work for me. I tried pixel sense but the
output image is semi-transparent (I think a demo-limit). If I had to I
could use an image manipulation program, output the result to a tiff
and regeoereference it with the geotifcp utility. Does anyone know of
any image editors that work well with very large images and will allow
functions such as merging channels and transforming from rbg to hsl or
hsv and back again?
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