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What do you use LAB for?

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  #1  
Old 07-14-2014, 05:32 AM
skoobey skoobey is offline
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What do you use LAB for?

I know what it does compared to RGB or CMYK, I just don't find it useful for much but masking?
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Old 07-14-2014, 12:09 PM
klev klev is offline
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Re: What do you use LAB for?

I don't use it for anything. It's not that useful for most things with the possible exception of describing a specific color in an output referred manner. I found a good summary by someone else of why it isn't very useful for color correction. That hue shift isn't really atypical either. As mentioned it is a good way to describe something in a non-hardware dependent manner. I just don't know why you would want to use it for anything else.
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Old 07-14-2014, 01:13 PM
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andrewrodney andrewrodney is offline
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Re: What do you use LAB for?

I dont' use Lab in PS for anything other than viewing numbers.

http://www.ppmag.com/reviews/200509_rodneycm.pdf
http://www.ppmag.com/reviews/200510_rodneycm.pdf
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Old 07-14-2014, 03:04 PM
Shoku Shoku is offline
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Re: What do you use LAB for?

1. Increasing color contrast - it does it more naturally than RGB or CMYK.
2. Removing color casts.
3. Masking
4. Removing Haze
5. Changing colors from one shade to another shade.
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Old 07-14-2014, 03:33 PM
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Aladdin Aladdin is offline
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Re: What do you use LAB for?

Quote:
Originally Posted by Shoku View Post
1. Increasing color contrast - it does it more naturally than RGB or CMYK.
2. Removing color casts.
3. Masking
4. Removing Haze
5. Changing colors from one shade to another shade.
Finally, someone who happen to know what is he talking about, thank you Shoku.

6. Boost color (vibrant) without overlay saturating it!
Look here http://digital-photography-school.co...with-photoshop - Here is an actual video that showes it in action https://www.youtube.com/watch?v=YB2eib59nrI
7. Enhance contrast

LAB color mode is so powerful, it gives you the necessary tools to manipulate color at the "micro" level.

Its power come from the fact that it separates "Lightness" from color, unlike the RGB color mode, where if you change one, you change the other!
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Old 07-14-2014, 04:58 PM
skoobey skoobey is offline
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Re: What do you use LAB for?

@Aladdin

um.. that's what "color" blending mode is for.

@Shoku and Aladin

Yes, I know those methods, but I don't find them to be essential, especially not on a daily basis.
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Old 07-14-2014, 05:25 PM
Shoku Shoku is offline
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Re: What do you use LAB for?

Quote:
Originally Posted by skoobey View Post

@Shoku and Aladin

Yes, I know those methods, but I don't find them to be essential, especially not on a daily basis.
Like any tool, it's useless until you need it. Editing in LAB is far superior to RGB or CMYK under the right circumstances. Just as RGB is under the right circumstances, or CMYK is under most circumstances.

We use what works best - and LAB works great.
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Old 07-14-2014, 05:53 PM
skoobey skoobey is offline
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Re: What do you use LAB for?

Strike me with another example, I'm curious!
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Old 07-14-2014, 11:03 PM
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Aladdin Aladdin is offline
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Re: What do you use LAB for?

@skoobey

No one said that LAP, or any other tool for this matter, should be used on every job! the right tool for the right job!

LAB is not for every day work, but, as @shoku said, it is there when you need it.

The bottom line, ADOBE would not have included it in PS if it was not useful or useless!

Here is your strike, look at the attachment, I would not be able to do it in under 5 minutes if it wasn't for the LAB!!! (it is a quick and dirty job, no masks, no paying attention to shadows, ZERO D&B, did not protect the water or the concrete, just concentrated on the subject)

The usual disclaimer: IT IS NOT MY WORK AS YOU MIGHT KNOW BY NOW, IT IS OFF THE WEB THROUGH GOOGLE. I take no credit for the capture or the original edit, the before. However, I did the AFTER!
Attached Images
File Type: jpg before.jpg (74.4 KB, 83 views)
File Type: jpg after.jpg (70.7 KB, 90 views)
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  #10  
Old 07-15-2014, 04:51 AM
insmac insmac is offline
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Re: What do you use LAB for?

For what is worth, LAB works for me mainly as a quick-n-dirty tool for major hue shifts across the image as well as increasing saturation in a certain direction.

As with everything photoshop, there are usually a few ways to do the same task but LAB is the fastest one to do the 'dramatic mood' kind of thing or just a final grading. I do like 75% of grading in LAB space.

You still need masking and varying opacity if you want to be precise with that but I find it the most convienient tool for color and that was just by trial and error, it just works for me but may not for someone else.
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