Removing shadows

P
Posted By
pat10036
Jan 25, 2004
Views
666
Replies
7
Status
Closed
Hi,

I would greatly appreciate your help on the following question.

I have some portrait pictures with shadow on the wall (background) caused by the camera flash. I would like to remove the shadows.

While searching in this group and on internet, I understand that there are various methods to get rid of shadow.

I understand that removing shadows using channels is one of the good methods. Could you please explain this method?

Here’s what I found on internet – but not sure how to do it.

"there is a method using CHANNELS to exactly match a discouloured portion of an image to its surrounds. it is primarily used to remove stains such as wine stains from photos, but i have used the technique many times to remove shadows from portrait shots, matching the skin tones in the shadows to those surrounding the shadowed portion. i dont have enough internet time at the moment (not on my computer) to go through the entire technique, but a cursory search of tutorials on the net should help you find the technique, as it has been shared by the adobe programmers. the critical point being, that channels are used to correct this, not burning or dodging or contrast masks or anything else, which will give u sub-standard results compared to the channels technique."

Thanks,
Pat

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V
VincentJames
Jan 25, 2004
(Pat) wrote in news:c03bf2a4.0401250853.207a3216
@posting.google.com:

Hi,

I would greatly appreciate your help on the following question.
I have some portrait pictures with shadow on the wall (background) caused by the camera flash. I would like to remove the shadows.

"snip"

Thanks,
Pat

There is an excellent article on this subjet in "Photoshp User" magazine (page 58-59) at you local news stand now.


—-== Posted via Newsfeed.Com – Unlimited-Uncensored-Secure Usenet News==—- http://www.newsfeed.com The #1 Newsgroup Service in the World! >100,000 Newsgroups —= 19 East/West-Coast Specialized Servers – Total Privacy via Encryption =—
MC
MArtin Chiselwitt
Jan 25, 2004
We don’t get this magazine in UK… Any chance of getting this info across another way?

thanks

VincentJames wrote:
(Pat) wrote in news:c03bf2a4.0401250853.207a3216
@posting.google.com:

Hi,

I would greatly appreciate your help on the following question.
I have some portrait pictures with shadow on the wall (background) caused by the camera flash. I would like to remove the shadows.

"snip"

Thanks,
Pat

There is an excellent article on this subjet in "Photoshp User" magazine (page 58-59) at you local news stand now.

—-== Posted via Newsfeed.Com – Unlimited-Uncensored-Secure Usenet News==—- http://www.newsfeed.com The #1 Newsgroup Service in the World! >100,000 Newsgroups —= 19 East/West-Coast Specialized Servers – Total Privacy via Encryption =—
V
VincentJames
Jan 25, 2004
MArtin Chiselwitt wrote in
news:aoTQb.294$:

We don’t get this magazine in UK… Any chance of getting this info across another way?

thanks

VincentJames wrote:
(Pat) wrote in news:c03bf2a4.0401250853.207a3216
@posting.google.com:

Hi,

I would greatly appreciate your help on the following question.
I have some portrait pictures with shadow on the wall (background) caused by the camera flash. I would like to remove the shadows.

"snip"

Thanks,
Pat

There is an excellent article on this subjet in "Photoshp User" magazine (page 58-59) at you local news stand now.

I guess you could subscribe http://www.photoshopuser.com/ Other than bootlegging the article, which would be in violation of copyright, you might find some info in one of the author’s books. His name is Daniel Giordan and you can find him with Google search. He has a lot of books out there.

—-== Posted via Newsfeed.Com – Unlimited-Uncensored-Secure Usenet News==—- http://www.newsfeed.com The #1 Newsgroup Service in the World! >100,000 Newsgroups —= 19 East/West-Coast Specialized Servers – Total Privacy via Encryption =—
BV
Branko Vukelic
Jan 25, 2004
Pat wrote:

Hi,

I would greatly appreciate your help on the following question.
I have some portrait pictures with shadow on the wall (background) caused by the camera flash. I would like to remove the shadows.
While searching in this group and on internet, I understand that there are various methods to get rid of shadow.

I understand that removing shadows using channels is one of the good methods. Could you please explain this method?

Here’s what I found on internet – but not sure how to do it.
"there is a method using CHANNELS to exactly match a discouloured portion of an image to its surrounds. it is primarily used to remove stains such as wine stains from photos, but i have used the technique many times to remove shadows from portrait shots, matching the skin tones in the shadows to those surrounding the shadowed portion. i dont have enough internet time at the moment (not on my computer) to go through the entire technique, but a cursory search of tutorials on the net should help you find the technique, as it has been shared by the adobe programmers. the critical point being, that channels are used to correct this, not burning or dodging or contrast masks or anything else, which will give u sub-standard results compared to the channels technique."

Thanks,
Pat

I did shadow removal once, but it was certainly not as straightforward as the "Channels Technique", you’re talking about. The problem with my image was that the shadow was cast upon one pretty large portion of the wall behind the subject. I had to copy-paste portions of the wall into the shadowed parts and tweak the pasted object’s edges until it matches the surrounding wall. A part of the wall was covered with ceramic tiles, and those I fixed by copying and pasting "healthy" tiles in place of ones in the shadow. Doing different curve adjustments on a selection seems to help a bit with isolated objects that have no matching, unshadowed counterparts… Also, adding a bit of glare by using dodge tool. I know this might have sounded a bit hazy, but try and experiment.

OTOH, there’s always more than one way to do something, and depending on the image, you might get better results with the "Curve Technique" after all.


Branko Vukelic ()
D
Davin
Jan 26, 2004
Hello All,

My suggestion – useful for your future portrait projects, if any (to save you some work in post production) – from having to remove the shadow. Move your background and subject further apart – thus reducing the ability for the shadow from flash/studio lights etc from falling upon the background wall causing shadows, in the first instance.

Regards,
Davin
www.davin-photography.com

"VincentJames" wrote in message
MArtin Chiselwitt wrote in
news:aoTQb.294$:

We don’t get this magazine in UK… Any chance of getting this info across another way?

thanks

VincentJames wrote:
(Pat) wrote in news:c03bf2a4.0401250853.207a3216
@posting.google.com:

Hi,

I would greatly appreciate your help on the following question.
I have some portrait pictures with shadow on the wall (background) caused by the camera flash. I would like to remove the shadows.

"snip"

Thanks,
Pat

There is an excellent article on this subjet in "Photoshp User" magazine (page 58-59) at you local news stand now.

I guess you could subscribe http://www.photoshopuser.com/ Other than bootlegging the article, which would be in violation of copyright, you might find some info in one of the author’s books. His name is Daniel Giordan and you can find him with Google search. He has a lot of books out there.

—-== Posted via Newsfeed.Com – Unlimited-Uncensored-Secure Usenet
News==—-
http://www.newsfeed.com The #1 Newsgroup Service in the World! >100,000
Newsgroups
—= 19 East/West-Coast Specialized Servers – Total Privacy via Encryption
=—
RF
Robert Feinman
Jan 26, 2004
In article , pat10036
@yahoo.com says…
Hi,

I would greatly appreciate your help on the following question.
I have some portrait pictures with shadow on the wall (background) caused by the camera flash. I would like to remove the shadows.
Try making a selection of the shadow using either color range or magic wand. Then create a curves layer while the selection is active. Try setting the mode of the curves layer to one of the lighten blends. Then play with the opacity and amount as well as the curve shape to bring up the brightness of the selection.


Robert D Feinman

Landscapes, Cityscapes, Panoramas and Photoshop Tips
http://robertdfeinman.com
B
bigmatt304
Jan 26, 2004
Since no one else will take a shot at this , I will . Am not a photoshop expert ,but use this colour matching method often.
Make sure your photo is in RGB. This is default, but where it has to be.

Take your photo. Cut just outside the shadow and copy, paste.

Go to your channels box. Go to red channel.
adjust your new layer , the shadow with the brightness , contrast levels.Your are adjusting to shades of grey.

Your trying to adjust to the basic background.
Do the same for for blue and green.
go back to RGB in the channels.
fine tune with color balance box.
erase around the edge of your layer with full eraser to get rid of the edge of your former shadow and then mid level erase , 30-50’s depending on pic to blend edge.

This should be close.
If it’s good let it be and flatten image.
If not flatten image and go over with rubber stamp on low range 20-30 large brush and use this to meld color scheme . Take from outside shadow to outer edge and maybe outer edge to middle.
I find this a good way to do backdrops and backgrounds.
Hope it is helpful.
Harkord F.

"Pat" wrote in message
Hi,

I would greatly appreciate your help on the following question.
I have some portrait pictures with shadow on the wall (background) caused by the camera flash. I would like to remove the shadows.
While searching in this group and on internet, I understand that there are various methods to get rid of shadow.

I understand that removing shadows using channels is one of the good methods. Could you please explain this method?

Here’s what I found on internet – but not sure how to do it.
"there is a method using CHANNELS to exactly match a discouloured portion of an image to its surrounds. it is primarily used to remove stains such as wine stains from photos, but i have used the technique many times to remove shadows from portrait shots, matching the skin tones in the shadows to those surrounding the shadowed portion. i dont have enough internet time at the moment (not on my computer) to go through the entire technique, but a cursory search of tutorials on the net should help you find the technique, as it has been shared by the adobe programmers. the critical point being, that channels are used to correct this, not burning or dodging or contrast masks or anything else, which will give u sub-standard results compared to the channels technique."

Thanks,
Pat

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