removing blemishes from photo

TP
Posted By
Tom Peel
Feb 16, 2005
Views
341
Replies
9
Status
Closed
I’ve got some digital photos which appear to have the blurred shadow of a speck of dirt on the lens. In Photoshop the HSB values show the brightness of the shadow down about 10-15% and the saturation up compared with the surroundings. I’d like to retouch the picture to eliminate this blemish.
I’ve experimented with creating a blurred spot on a black background and mixing this in as a screened layer, which works approximately. Is there a better way to do this?

Thanks

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babygrand
Feb 16, 2005
Have you tried the clone tool? If the background area immediately adjacent to the blemish is relatively uniform, you might could clone a spot to cover the blemish. Depends on what you have to work with in the image.

babygrand

"Tom Peel" wrote in message
I’ve got some digital photos which appear to have the blurred shadow of a speck of dirt on the lens. In Photoshop the HSB values show the brightness of the shadow down about 10-15% and the saturation up compared with the surroundings. I’d like to retouch the picture to eliminate this blemish.
I’ve experimented with creating a blurred spot on a black background and mixing this in as a screened layer, which works approximately. Is there a better way to do this?

Thanks
TP
Tom Peel
Feb 16, 2005
babygrand wrote:

Have you tried the clone tool? If the background area immediately adjacent to the blemish is relatively uniform, you might could clone a spot to cover the blemish. Depends on what you have to work with in the image.

It varies- in some cases the blemish is in the sky, in others the blemish is right on the horizon. Mostly it’s in the sky, which make sense, because it is only visible on photos shot at a high F-number. I was looking for a more systematic way of doing the correction than simply cloning bits of the image. In terms of size, on a 1600×1200 pixels picture, the shadow covers an area about 100 pixels across.
babygrand

"Tom Peel" wrote in message

I’ve got some digital photos which appear to have the blurred shadow of a speck of dirt on the lens. In Photoshop the HSB values show the brightness of the shadow down about 10-15% and the saturation up compared with the surroundings. I’d like to retouch the picture to eliminate this blemish.
I’ve experimented with creating a blurred spot on a black background and mixing this in as a screened layer, which works approximately. Is there a better way to do this?

Thanks

JD
John DH
Feb 17, 2005
I would imagine that you heve used the patch or healing brush for this?

Any chance of a link to the pic, I would like to have a go

John D
TP
Tom Peel
Feb 17, 2005
John DH wrote:

I would imagine that you heve used the patch or healing brush for this?
Any chance of a link to the pic, I would like to have a go
John D
John

which brush is this? I can’t find a healing brush in my menu (this is
6.0).

I could send you a sample if you send me you real mailID.

T.
JD
John DH
Feb 18, 2005
Ah. version 7 is the one with the healing brush and patch tools. Never mind. Send a sample to
(remove the x’s) and I’ll see what I can do and return the result.

Cheers

John D

which brush is this? I can’t find a healing brush in my menu (this is
6.0).

I could send you a sample if you send me you real mailID.
T.
TP
Tom Peel
Feb 18, 2005
John DH wrote:
Ah. version 7 is the one with the healing brush and patch tools. Never mind. Send a sample to
(remove the x’s) and I’ll see what I can do and return the result.
Cheers

John D

which brush is this? I can’t find a healing brush in my menu (this is
6.0).

I could send you a sample if you send me you real mailID.
T.
On its way, thanks
T.
D
Dave
Feb 18, 2005
Tom Peel wrote:
I’ve got some digital photos which appear to have the blurred shadow of a speck of dirt on the lens. In Photoshop the HSB values show the brightness of the shadow down about 10-15% and the saturation up compared with the surroundings. I’d like to retouch the picture to eliminate this blemish.
I’ve experimented with creating a blurred spot on a black background and mixing this in as a screened layer, which works approximately. Is there a better way to do this?

Thanks
Hi Tom,

If you’re having this problem with a digital slr camera the problem is most likely dust on the image sensor. If you do a google search on "cleaning dslr sensor" I’m sure you’ll get lots of hits.

Hope this helps,
Dave
JD
John DH
Feb 18, 2005
Working on it in the morning

John D

"Tom Peel" wrote in message
John DH wrote:
Ah. version 7 is the one with the healing brush and patch tools. Never
mind.
Send a sample to
(remove the x’s) and I’ll see what I can do and return the result.
Cheers

John D

which brush is this? I can’t find a healing brush in my menu (this is
6.0).

I could send you a sample if you send me you real mailID.
T.
On its way, thanks
T.
JD
John DH
Feb 19, 2005
Tom, it’s in your mailbox.

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