How to remove this?

Helbreath · 7th September 2003

How to remove the bright red line at the edge? Will any printer setting help me? Can photoshop remove it?

Thanks

Zerstorer · 7th September 2003

That's chromatic aberration. A quick way would be to use the Hue/sat controls in PS and try to desaturate either the red or magenta channel.

There are better techniques which are more elaborate.

Helbreath · 7th September 2003

but will it affect the whole image by desaturating? or can u just selct part of it and desaturate?
Thanks for you help

Jimmy Liew · 8th September 2003

Originally Posted by Helbreath

but will it affect the whole image by desaturating? or can u just selct part of it and desaturate?
Thanks for you help

you can use the Hue&Saturation Adjustment Layer at your Layers Palette and after you apply the H&S adjustments, then click on the adjustment mask and use a brush to paint the area you want the changes to apply.

Zerstorer · 8th September 2003

Originally Posted by Helbreath

but will it affect the whole image by desaturating? or can u just selct part of it and desaturate?
Thanks for you help

Zoom in to 200% view.
Set magic wand to about tolerance 30 or so.
Select the red outline using Shift Click to add small segments.

Use Hue/Sat and desaturate the selected area.

harlowmac · 13th September 2003

An easy way is to go to the Red channel, select the area using magic wand. feather the selection. Guassian blur the channel.

In this case, you will not do major disruption to the area nor the rest of your photo.

sulhan · 19th September 2003

Hi Helbredth.....

One possible option woul dbe to use the "Color Range" function.

Since the chromatic aberation in red is made up of a few mix of colours which are sort of distinctive, in some cases you may use the following method....may and may not be liked by some but its another tool to learn.....

...
1- Open the image to be edited
2- Go to Select->Color Range.....
3- Use the eye drop icon to hover in the area or colur that is at the edge.....
4- You can adjust the FUZZINESS of the selection to select different size or should i say "broadness" of your selection.
5- Once selected.....you can go to the Image->Adjustment->Hue/Saturation
6- Adjust the selected region to fit the background....
7- Repeat Step 3 to 7 as needed depending on the colour spectrum in that aberation....
8- Here is result i got in a quick edit...its abit patchy i think due to the resolution if the files....

THis method could be used with all the other methods mentioned above by the other CS members to achieve your needs......

regards,
me

7th September 2003	#1
Helbreath Member Join Date: Jul 2003 Posts: 856	How to remove this? How to remove the bright red line at the edge? Will any printer setting help me? Can photoshop remove it? Thanks

19th September 2003	#7
sulhan Advertiser Join Date: May 2002 Location: Melbourne, Australia Posts: 4,051	One other option..... Hi Helbredth..... One possible option woul dbe to use the "Color Range" function. Since the chromatic aberation in red is made up of a few mix of colours which are sort of distinctive, in some cases you may use the following method....may and may not be liked by some but its another tool to learn..... ... 1- Open the image to be edited 2- Go to Select->Color Range..... 3- Use the eye drop icon to hover in the area or colur that is at the edge..... 4- You can adjust the FUZZINESS of the selection to select different size or should i say "broadness" of your selection. 5- Once selected.....you can go to the Image->Adjustment->Hue/Saturation 6- Adjust the selected region to fit the background.... 7- Repeat Step 3 to 7 as needed depending on the colour spectrum in that aberation.... 8- Here is result i got in a quick edit...its abit patchy i think due to the resolution if the files.... THis method could be used with all the other methods mentioned above by the other CS members to achieve your needs...... regards, me

7th September 2003	#2
Zerstorer Senior Member Join Date: Jul 2002 Posts: 3,610	That's chromatic aberration. A quick way would be to use the Hue/sat controls in PS and try to desaturate either the red or magenta channel. There are better techniques which are more elaborate.

13th September 2003	#6
harlowmac New Member Join Date: Sep 2003 Posts: 31	An easy way is to go to the Red channel, select the area using magic wand. feather the selection. Guassian blur the channel. In this case, you will not do major disruption to the area nor the rest of your photo.