I've done a few tests.
Not yet directly with focus stacks, but this should be very interesting.
I tested auto-bracketing a 16bit tif versus S/H and pseudo 1 stop
differences of a raw.
Autobracketing, I wasn't too surprised to see not a whole lot of restored
highlight details verses the pseudo bracket, but I was surprised to see
quite a good restoration with s/h.
With 10 and 11 Levels there was color bleed into the clouds, and with 5
levels more of gray tone, with haloing.
However, I found IMHO the best results using the pseudo bracket, with
saturation knocked down for the over exposure. Giving a very realistic scene
with a well compressed DR.
I am continuing to check further interactions of the settings.
Southern Digital Solutions LLC
Behalf Of Max Lyons
Sent: Thursday, February 21, 2008 12:42 AM
Subject: [PanoToolsNG] TuFuse: Two stage exposure/focus blending program
I've recently released a new freeware exposure and focus blending program
TuFuse is based on the same image fusion algorithm as Enfuse, but works a
little differently. It performs a "two stage" fusion process that is
to perform focus blending and exposure blending in two stages. Enfuse uses a
single stage fusion algorithm that works well for either focus blending or
exposure blending, but isn't optimally suited to addressing both
simultaneously. For example, If one input image contains a well exposed, but
poorly focused, pixel, it will still contribute to the final composite, even
a well exposed and well focused pixel is available in another input image.
Tufuse performs focus blending and exposure blending in two different stages
create a better result. It is able to determine which images ought to be
blended and which ought to be exposure blended without user input.
TuFuse has a few other differences, and includes an "auto-bracketing"
to create fused images from a single input image, similar to "pseudo HDR"
images created from a single exposure.
TuFuse is a stand-alone Windows command line program, and is released as
TuFuse is also distributed with PTAssembler 4.0 (and later) as its default
image stacking plugin program. (PTAssembler 4.0 also supports Enfuse and
CombineZM as stacking plugins). PTAssembler acts as a GUI for TuFuse (and
other stacking plugins), to align (register) images before stacking.
More information about TuFuse/PTAssembler:
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