Digicam img improvement
Posted 13 February 2005 - 08:48 AM
i am used to the easy white balancing from raw files, one of my friends saw how easy it was to recover blue images with c1, and asked me to do the same with her jpg files
the problem is i'm not really good at it, i tried auto contrast + auto levels, but the results aren't really nice
her original file
full sized :
my horrible results :
any ideas to get this better ?
Posted 13 February 2005 - 09:33 PM
Get closer for the shot, is the main way to improve this. And more light from a strobe.
What focal length or zoom setting were you at?
Trying to recover reds, using only software, without helping the original exposure out with some fill light, is always going to end up looking less than wonderful.
nikon n90s/ikelite housing/twin SS-200 canon G2/ikelite/DS-50/optical TTL slave
sony V3/ikelite/DS-51/Heinrich DA2 slave
Posted 14 February 2005 - 03:33 AM
There is a PDF Tutorial on removing cyan from images at www.digitaldiver.net that can be downloaded. I think there is a similar article here under features, post processing (removing blues....)
D2X and D80 / Nexus / Ikelite / Inon / Heinrichs iTTL controller
Posted 14 February 2005 - 05:05 AM
Be VERY carefull when getting real close to Titan Trigger fish. They are unbelievablely territorial when nesting. ( usually about the same time as they let you get close ).
I got KO'd & 12 stitches a few years back - Titan's have a certain way of making their point !.
It's almost a daily event to hear of incidents over here.
We could probally start a whole thread detailing encounter's with this fish.
Posted 14 February 2005 - 09:38 AM
here's a few pics (taken with a 300d) of the fish nesting
this one would be so great if the camera had focused on the face and not the tail
a housed 300d fith 2 strobes makes a great shield for agressive animals
Posted 14 February 2005 - 04:21 PM
I reset the black point and did some basc color correction using Levels. Then added 50% green into the red channel using the channel mixer. Then I ran the shadow/highlight tool with highlights at 50%. Then some color fine tuning and sharpening. My contrast may be a little too high but it looks better on the big version.
- Col. John "Hannibal" Smith
Nikon, Seatool, Nexus, Inon
Posted 14 February 2005 - 05:48 PM
To my knowledge, Titan triggers are only dangerous when they're protecting their nests. You'll know. These fish are not to be taken lightly - a diver in Puerto Galera had most of her ear torn off by a Titan a few years back, and I've seen fins with surprisingly big bite marks taken out of them.
In my experience, when a Titan attacks, it will come straight at you. The conventional wisdom is that the territory defended by a Titan is basically the shape of an inverted cone, centered on the nest. So the idea is to swim sideways and, if possible, down slope, so as to get out of the danger zone as quickly as possible. Avoid swimming upwards, as the circumference of the area defended by the Titan is supposedly larger at shallower depths.
I've experimented a bit, trying to finding the edge of the "danger" zone and seeing if I could shoot an attacking trigger from just outside it. These were not successful. It seemed clear that the "zone" within which the Titan is likely to regard you as a potential threat is quite elastic, not really a well-defined area.
Nikon D2X in Subal housing.
Tabula Int'l Ltd.