JohnPW wrote:
What are you folks doing to "faux-bracket" your images?
With RAW files, obviously you can do all sorts of non-destructive things, but I assume
you aren't using RAW files though, or it wouldn't really be all that "faux."
If you are using conventional files, I assume you are adjusting the curves?
Sorry BugBear, I'm not smart enough to be able to read your perl script (other
than that you are using something to adjust something and then enfusing the
resulting images!)
I really need to lear scripting!
OK - ignoring the script, here are the external commands issued by the script
for a run:
proc.pl o1.tif o2.tif
convert o1.tif -sigmoidal-contrast 5x0% c000.tif
convert o1.tif -sigmoidal-contrast 5x20% c020.tif
convert o1.tif -sigmoidal-contrast 5x40% c040.tif
convert o1.tif -sigmoidal-contrast 5x60% c060.tif
convert o1.tif -sigmoidal-contrast 5x80% c080.tif
convert o1.tif -sigmoidal-contrast 5x100% c100.tif
enfuse --output=o2.tif c000.tif c020.tif c040.tif c060.tif c080.tif c100.tif
I'm assuming people on this list know what enfuse does.
I'm using ImageMagick ("convert") to make derived files from the original
image, with (severaly) skewed image curves, all the way from skewed
to the dark (so most of the dynamic range in the output file is expanded
from the shadows of the source) to skewed to the dark (ditto, sort of).
http://www.imagemagick.org/script/command-line-options.php#sigmoidal-contrast
http://en.wikipedia.org/wiki/Sigmoid_function
The upshot is a range of image with enhanced contrast in the
various intensity ranges of the original image.
Enfuse then "just" picks and merges the best pixels in
the usual way.
BugBear
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