Re: filmscanners: Color Cast removal/and blue blues

[Ian Boag <ianboag@partslink.co.nz>]

Make up a couple of layers that blend about 50% opacity wise for colour. In
the first one, chop out the whale and make the whole layer into a filter
that gets the background colour right. In the second one chop out all
except the whale and do the same thing.

Sounds hard if you've never done it. Isn't.

Even Photo Deluxe does this OK for those of without the wherewithal to own PS

    IB


At 16:55 28/06/01 -0700, you wrote:
>I've no experience with underwater images, but you may be interested in
>pages 135-138 of Dan Margulis' book "Professional Photoshop 6". He is
>essentiallu suggesting blending channels and using lighten blend mode.
>
>Bob Wright
>----- Original Message -----
>From: mahimahi <mahimahi@netpci.com>
>To: <filmscanners@halftone.co.uk>
>Sent: Thursday, June 28, 2001 2:41 PM
>Subject: filmscanners: Color Cast removal/and blue blues
>
>
>>
>>
>> --Hello
>>
>> I am having problems in regard to color cast removal when using the Nikon
>> LS1000/silverfast combination. The problem shots are underwater images
>which
>> include a deep blue background but end up pea green. Shots that do not
>> include a blue background.
>>
>> I also use a Acer 2720s which the factory software includes a film type
>> selector. This helps a little but when scanning Fuji NPC 160 (which is not
>> included in the list of film types) produces similar green output.
>>
>> Problem #2. (Positive film On both scanners) When trying to scan images
>with
>> a light blue background and a subject (Sperm Whale Infant) which is quite
>> different in tone from the background on the original. The resulting
>output
>> is all blue (whale and background). Any tweaking of the color in the
>scanner
>> software to bring out the color of the subject results a water background
>> that has a reddish purple tint.
>>
>>
>>
>>
>>
>>
>>
>
>