Removal of colour cast from underwater images

CA
Posted By
Colin Ackerman
Feb 2, 2005
Views
455
Replies
8
Status
Closed
Has anyone successfully removed the color cast from underwater images? Any advice on how to do it would be much appreciated


Regards Colin Ackerman
Check out my Web site at www.aboveusthewaves.com
It is NOW available, my Dive Trip report to St Vincent – September 2004 On this trip some rare and unusual marine life was captured on film.

How to Master Sharpening in Photoshop

Give your photos a professional finish with sharpening in Photoshop. Learn to enhance details, create contrast, and prepare your images for print, web, and social media.

M
MOP
Feb 2, 2005
"Colin Ackerman" wrote in message
Has anyone successfully removed the color cast from underwater images? Any advice on how to do it would be much appreciated


Regards Colin Ackerman
Check out my Web site at www.aboveusthewaves.com
It is NOW available, my Dive Trip report to St Vincent – September 2004 On this trip some rare and unusual marine life was captured on film.
Whilst you may be able to improve the colour slightly
the basic problem with U/W photography is that water filters nearly all the red out below 10m or so!
the only real answer is to use a flash gun (strobe) on a long arm. sorry but if the colour is not there to start with it’s virtually impossible to put it back with filters/ curves or adjustments, the only real answer in Photoshop is to hand paint it
DG
Dick Goesinto
Feb 2, 2005
Colin Ackerman wrote:
Has anyone successfully removed the color cast from underwater images? Any advice on how to do it would be much appreciated


Regards Colin Ackerman
Check out my Web site at www.aboveusthewaves.com
It is NOW available, my Dive Trip report to St Vincent – September 2004 On this trip some rare and unusual marine life was captured on film.
I found this by googling around………

http://www.fotofects.com/tutorials/photoshop/photo_retouchin g/correcting_underwater_photos/index.htm
MR
Mike Russell
Feb 3, 2005
Colin Ackerman wrote:
Has anyone successfully removed the color cast from underwater images? Any advice on how to do it would be much appreciated

Two techniques:

1) use channel mixer to move green or blue into the red channel, to get rid of the cyan cast.
2) use Image>Adjust>Hue/Sat to bump the saturation.

or

1) convert to Lab mode, pick something that should be gray, and set it’s a and b values to zero to make it neutral.
2) move the magenta end of the a curve horizontally to straighten the curve,
3) make both the a and b curves steeper to add more color. being careful to
keep your neutral points in the same place
4) adjust the Lightness curve to get more contrast, in particular a clean black and white.


Mike Russell
www.curvemeister.com
www.geigy.2y.net
C
Clyde
Feb 4, 2005
Colin Ackerman wrote:
Has anyone successfully removed the color cast from underwater images? Any advice on how to do it would be much appreciated


Regards Colin Ackerman
Check out my Web site at www.aboveusthewaves.com
It is NOW available, my Dive Trip report to St Vincent – September 2004 On this trip some rare and unusual marine life was captured on film.

Yeah, make it B&W. I’ve seen pictures from a guy who specializes in underwater B&W. They look great. Alas, I can’t remember his name.

Clyde
HL
Harry Limey
Feb 4, 2005
"Clyde" wrote in message
Colin Ackerman wrote:
Has anyone successfully removed the color cast from underwater images?
Any
advice on how to do it would be much appreciated

Yeah, make it B&W. I’ve seen pictures from a guy who specializes in underwater B&W. They look great. Alas, I can’t remember his name.
Clyde

Jacques Costeau??
M
MOP
Feb 6, 2005
"Harry Limey" wrote in message
"Clyde" wrote in message
Colin Ackerman wrote:
Has anyone successfully removed the color cast from underwater images?
Any
advice on how to do it would be much appreciated

Yeah, make it B&W. I’ve seen pictures from a guy who specializes in underwater B&W. They look great. Alas, I can’t remember his name.
Clyde

Jacques Costeau??
I don’t think Jacques was ever a great photographer B&W or colour, even if he did have probably the best underwater camera ever made named after his ship!
T
trekdoc
Feb 10, 2005
"MOP" wrote in
news:shrNd.2596$:

"Harry Limey" wrote in message
"Clyde" wrote in message
Colin Ackerman wrote:
Has anyone successfully removed the color cast from underwater images?
Any
advice on how to do it would be much appreciated


I’ve got an action that I found that works pretty well on this type of photo. You do have to play around with it a little…I could email it to you if you want…
D
Deadlegs
Apr 10, 2005
Try blending the blue channel into bot the red and green channels in lighten mode – a technique recommended by Dan Margulis in this book Professional Photoshop – its worth geting a copy!
"trekdoc" wrote in message
"MOP" wrote in
news:shrNd.2596$:

"Harry Limey" wrote in message
"Clyde" wrote in message
Colin Ackerman wrote:
Has anyone successfully removed the color cast from underwater images?
Any
advice on how to do it would be much appreciated


I’ve got an action that I found that works pretty well on this type of photo. You do have to play around with it a little…I could email it to you if you want…

How to Master Sharpening in Photoshop

Give your photos a professional finish with sharpening in Photoshop. Learn to enhance details, create contrast, and prepare your images for print, web, and social media.

Related Discussion Topics

Nice and short text about related topics in discussion sections