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Reddit mentions of Professional Photoshop: The Classic Guide to Color Correction (5th Edition)

Sentiment score: 3
Reddit mentions: 5

We found 5 Reddit mentions of Professional Photoshop: The Classic Guide to Color Correction (5th Edition). Here are the top ones.

#1 Professional Photoshop: The Classic Guide to Color Correction (5th Edition) #3
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Found 5 comments on Professional Photoshop: The Classic Guide to Color Correction (5th Edition):

u/[deleted] · 11 pointsr/photography

When you do your color correction using curves you need a grey target for the grey color dropper. If you select that point using the grey dropper it will help to color correct your photo (assuming you also have pure white and black targets as well).

Edit - Allow me to clarify. What you are talking about is color correcting based on your own perception. The method this article refers to color correcting by the numbers. Color correcting based on what you see is influenced by things such as color casts in camera, white balance, your own perception of color and color casts in your computer hardware. Correcting by the numbers method here uses RGB values to find grey. If you correct by the numbers you could properly color correct a photo even if you are color blind, using a computer monitor with a dark red cast and photo that is improperly white balanced.

Color correcting by the numbers is the best way to to handle color in your photos because it makes it much harder to fail. If you want to know about this method of color correction, I would suggest you consult the bible on the subject Professional Photoshop: The Classic Guide to Color Correction (5th Edition) by Dan Margulis.

u/RIO_XL · 9 pointsr/Lightroom

Forgive me but I’m going to assume you’re aiming for true to life color accuracy over stylistic or creative intent or “looks” (moody, grunge, surreal, dreamy, vintage). If so, getting your WB and exposure correct is the bulk of the work. What follows is to get you the rest of the way there.

Photoshop or Affinity Photo provide more flexibility to do these types of corrections, and with Lightroom it becomes a matter of deciding what you’re willing to trade for correct skin tones: money, time, or creative intent.

If You Have Money

purchase the x-rite color checker passport. Once you get going with this, you’ll get color accurate photos with little effort on your part.

If you’re anal about color accuracy you’ll need to make sure you have a sample photo of the passport using the same lens, and in the same lighting condition, as the photos you want to correct. It has the benefit of also nailing your WB for you.

Going this route, you’ll miss out on learning how to correct colour yourself. It’s all done for you though so you save time. A lot of time.

If You Have Time

There are recommended ratios of R:G:B values for different skin tones depending on race. The singular best source I’ve found on this is Dan Margulis’ book: Professional Photoshop Chapter 3: Color by The Numbers. Get the physical copy if you’re serious about it. The kindle version doesn’t include the disc and the images are heavily compressed, you don’t get to really witness the techniques he’s applying.

Once you know the color theory you’ll know when to use which panel in Lightroom for your correction.

There’s also a YouTube video by PixImperfect that touches on these skin ratios. The host provides a swatch image with the most common ratios that you can reference.

Creative Intent

The most recommended tool is the Tone Curve, but in LR, it acts on the entire image globally. The curve will adjust the luminance value of each channel but in doing so will affect your hue and saturation. You’ll want to be very precise and adjust the curves with intent. Use this if you need subtle corrections. Photoshop has the added advantage of masking and using blend modes with your curves.

Next is the Camera Calibration panel, this is also global, and will adjust your hue or saturation but preserves your luminance values. This is amazing for creative edits.

By far the most forgiving is the HSL panel. It’s what I use only after I’ve settled on a white balance. This is the one tool I wish was available in photoshop and affinity photo.

A more advanced option would be to use an adjustment brush painted over the skin. The adjustment would use the WB slider and the Tint slider. It may seem like less control but if you know your color theory it gets the job done. Do this if you don’t want to affect the color on other parts of the photo. I use this for portraits of people taken over grass. The skin under the chin, nose and cheeks take on a green tint. I only want to target those areas not the rest of the skin which is usually fine.

Measuring The Values

In the Tone Curves panel you can use the selector/sampler (not sure what’s the official name) to hover over somewhere in the images and see the RGB value as well as where it falls on the curve in terms of luminance. I believe the RGB value under the mouse pointer will also appear below the histogram I just can’t remember how to activate it.

I would sample the skin somewhere between the midpoint and 3/4 up the curve. Anything past 3/4 is the highlight region and every hue starts to converge towards white, skewing your reading of what the actual skin hue is.

I hope this helps.

u/carsknivesbeer · 3 pointsr/photography

Margulis’ book “Professional Photoshop: The Classic Guide to Color Correction” is based on numbers and has claimed to work with the colorblind. It’s an old book and I know nothing of his new work but might be worth a shot for 5 bucks.

u/scientologist2 · 2 pointsr/photocritique

There is a classic book out there on color correction

http://www.amazon.com/Professional-Photoshop-Classic-Guide-Correction/dp/032144017X/

which goes into it all in insane depth.

I am still working on digesting it.

Very dense, good stuff.

I have no problem treating the sky from the ground, but I would try to understand the colors of the photo and experiment with each are separately.

u/Richeyron · 1 pointr/photoshop

You might have more success converting a copy to Lab mode.
An indispensable book that would really help is Professional Photoshop by Dan Margulis:
https://www.amazon.ca/Professional-Photoshop-Classic-Guide-Correction/dp/032144017X
See if you can find it at your local library before buying it.