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Post by Tpgettys on May 3, 2015 19:50:53 GMT
I saw a technique for removing a color cast that seems to work really well in most cases and doesn't require the interaction that the built-in color cast removal tool does.
Since I don't have photoshop, I am hoping someone that does would be willing to make an action for it.
Here are the steps:
How to remove color cast
1. Create a copy of the layer (ctrl+J)
2. Filter, Blur, Average
3. Create a levels adjustment layer, then
4. Select the gray eyedropper, click anywhere on the image of the copied layer
5. delete the copied layer you created in step 1.
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Post by Sepiana on May 3, 2015 20:00:53 GMT
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Bayla
Established Forum Member
Posts: 555
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Post by Bayla on May 3, 2015 20:08:26 GMT
Tom, That's my tutorial from EV!! I had been wondering whether I should repost it to the Member tutorials board here. 1. Ctrl-J 2. Filter>Blur>Average. The image will turn to a solid colour. 3. Ctrl-L, then with the middle eyedropper selected click anywhere on the image - it will turn grey. 4. Delete this copy layer. 5. Alt>Ctrl>L to bring up the Levels dialogue box again & click OK. The colour cast will have disappeared. And I think I may be able to help, because following on from when we discussed colour casts someone (either Diana or Tony, can't remember which) produced an action based on those steps which I still have on my computer. Can't remember which version of PSE it was made for & if it works still, but you're welcome to try it out &report back. Color Cast Correction.zip (666 B) Bayla |
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Deleted
Deleted Member
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Post by Deleted on May 3, 2015 20:46:35 GMT
Bayla i think it would be great if you posted this in the members tutorial section.
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Post by Sepiana on May 3, 2015 21:19:43 GMT
Tom, And I think I may be able to help, because following on from when we discussed colour casts someone (either Diana or Tony, can't remember which) produced an action based on those steps which I still have on my computer. Can't remember which version of PSE it was made for & if it works still, but you're welcome to try it out &report back.
This action works just fine in Elements 11 through 13 loaded via Window>Actions.
The problem is if you want to use this action in an earlier version of Elements because this action contains only the .atn file. To access it via the Effects panel (photo effects tab), you will need to create a .png file (for the thumbnail). You can skip creating an .xml file; the action will be available in the "Show All" category. The easiest way to use this action in earlier versions is to install it so that it can be accessed via Guided Edit>Action Player. If you go down this route, all you need is the .atn file.
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Post by Tpgettys on May 3, 2015 23:48:04 GMT
Tom, That's my tutorial from EV!! I had been wondering whether I should repost it to the Member tutorials board here. 1. Ctrl-J 2. Filter>Blur>Average. The image will turn to a solid colour. 3. Ctrl-L, then with the middle eyedropper selected click anywhere on the image - it will turn grey. 4. Delete this copy layer. 5. Alt>Ctrl>L to bring up the Levels dialogue box again & click OK. The colour cast will have disappeared. And I think I may be able to help, because following on from when we discussed colour casts someone (either Diana or Tony, can't remember which) produced an action based on those steps which I still have on my computer. Can't remember which version of PSE it was made for & if it works still, but you're welcome to try it out &report back. Thank you so much Bayla, it works like a charm! |
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Post by Tpgettys on May 3, 2015 23:49:31 GMT
Thanks Sepiana! I couldn't figure out how to get it, but Bayla's action works perfect, so no worries. |
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John
Junior Forum Member
Posts: 232 
Open to constructive criticism of photos: Yes
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Post by John on May 4, 2015 1:48:40 GMT
By coincidence, got a book today by Rick Peterson about PSE 11. The first item was removing color cast. He laid out a very simple (looking) procedure using the Enhance menu then Adjust Color. It looked so simple it has got me fired up to use PSE again. Book cost 2.99 and I read it in about an hour. Great book. Hope they make it into a movie.
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Post by Sepiana on May 4, 2015 1:56:34 GMT
Thanks Sepiana! I couldn't figure out how to get it, but Bayla's action works perfect, so no worries. Tom, no problem.
BTW, the links to download this action are located just under the image of the little girl in the red coat. There are two of them. Just click on one.
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Post by Sepiana on May 4, 2015 2:04:34 GMT
By coincidence, got a book today by Rick Peterson about PSE 11. The first item was removing color cast. He laid out a very simple (looking) procedure using the Enhance menu then Adjust Color. It looked so simple it has got me fired up to use PSE again. Book cost 2.99 and I read it in about an hour. Great book. Hope they make it into a movie. You can find more information on using -- Enhance>Adjust Color>Adjust Color Curves -- to remove color cast in the Help file.
helpx.adobe.com/photoshop-elements/using/correcting-color-casts.html#adjust_color_curves
As a side note -- The Adjust Color Curves command is the Elements counterpart of Curves in Photoshop. It is a "diluted" feature though -- a simplified dialog box, a few preset settings, and not as many adjustment points.
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Deleted
Deleted Member
Posts: 0
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Post by Deleted on May 10, 2015 4:39:10 GMT
My thoughts are based on PSE 10.
If you are shooting in RAW, you have more options and for me it's much easier to correct exposure, white balance (colour casts), contrast, noise etc. in ACR (Adobe Camera Raw). When you open a RAW image in PSE10, it opens it in ACR first. Using ACR's White Balance tool usually corrects any colour casts. You can fine tune the white balance with the temperature and tint sliders. If your original exposure is correct or at least very close to accurate it should take only a minute or so to maybe fine tune your image in ACR and then PSE edits/manipulations should be zero or very, very minimal.
But if you have only a jpg, I find removing colour casts and bringing out the full tonal range of the image is best done by adjusting the individual RGB channels in a Levels Adjustment Layer.
I normally use the Enhance->Adjust Colour commands as a last resort, especially since they are a "destructive" (alter pixel values) method as opposed to Adjustment Layers which are Non-Destructive.
Hope this helps 
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Deleted
Deleted Member
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Post by Deleted on May 10, 2015 5:19:03 GMT
For what it's worth, I just did a quick test of the tutorial method posted by tpgettys
Original Image
Using Tutorial Method
Adjusting Individual RGB Channels in Levels layer
Click on the images to see view them full size.
The Background Copy layer is the background layer with Filter->Blur->Average applied.
Levels 1 layer applies the grey dropper to the blurred layer. With both Background Copy and Levels 1 switched on and Levels 2 switched off, the Background Copy layer is grey.
Levels 2 layer applies individually adjusted RGB channels to bring out the full tonal range in the image.
The original image's histogram shows some of the tonal range is missing. My eyes see a slight bluish colour cast as well.
The Tutorial Method image shows the blue colour cast is gone but some of the tonal range is still missing as seen in the histogram. To my eyes, there is a slight reddish colour cast, but it's an improvement on the original image.
The Adjusting RGB Channels image shows a full tonal range present in the histogram with no colour cast and a brighter, stronger coloured image to my eyes.
The above demo shows why I prefer to first make adjustments in ACR on the RAW image and then adjust the individual RGB channels in Levels if required later in PSE.
Hope this helps
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Post by Sepiana on May 10, 2015 5:29:47 GMT
I normally use the Enhance->Adjust Colour commands as a last resort, especially since they are a "destructive" (alter pixel values) method as opposed to Adjustment Layers which are Non-Destructive
There is an easy and effective workaround to deal with the destructive aspect of the Adjust Color command -- work on a duplicate layer. |
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Deleted
Deleted Member
Posts: 0
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Post by Deleted on May 10, 2015 5:39:16 GMT
"Easy", yes I totally agree but "Effective", not in my opinion.
Duplicating layers means the saved PSD file will be much larger and potentially messier (depending on the type of edits) than if an Adjustment Layer was available.
I would like to see many more Adjustment Layer options in PSE and until there are, it's going to be hard for me to justify upgrading PSE.
But in any case, for the purposes of my demo earlier, it doesn't matter if you use Levels as an Adjustment Layer or not. The effect on the image colours and tonal range will be the same. |
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Post by Sepiana on May 10, 2015 6:10:54 GMT
Just adding some more information.
Elements is not limited to the methods discussed so far when it comes to color-cast problems. As a matter of fact, there are several ways to address these problems.
- Raw Converter - Levels - Auto Color Correction - Average Blur filter - Remove Color Cast - Photo Filter - Adjust Color for Skin Tone - Color Variations (NOTE: This feature was removed from Elements starting with version 12; the suggested alternative is to use Auto Smart Tone.)
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