The one that impresses me the most is dehaze. It's almost like it makes a mask for you on the fly and darkens the background, get the clouds visible etc.. amazing too… when was the invented, and how do they do it? Kind of revolutionary no?
And texture is sort of sharpening? And clarity is…?
Before dehaze, what would you do? Make a mask to darken the sky and leave foreground alone?
By @larry45
The article says “The Dehaze technology is based on a physical model of how light is transmitted, and tries to estimate light that is lost due to absorption and scattering through the atmosphere.” This is not easily reproducible with traditional Photoshop techniques, unless you’re willing to isolate areas of the image based on depth and increase your simulated haze effect at different distances from the viewer.
Texture/ Clairy still confusing, but here article will probably help a bit.
By @larry45
The way I see it, Texture, Clarity, and Sharpness are all variations on the same methods of boosting local contrast, especially along edges, and not related to Dehaze. To some extent they are all similar to the Unsharp Mask and High Pass sharpening methods used for over 20 years in Photoshop, but a lot easier to use. The main difference between the three is what detail frequency they address.
Sharpness, introduced first, addresses the finest details. Clarity, introduced later, addresses much coarser details (lower detail frequencies.) Texture, introduced most recently, addresses detail frequencies between Sharpness and Clarity. Because they address different levels of detail, it’s reasonable to use all three in one image. But because Texture and Clarity can accentuate noise in broad areas such as skies and skin, many recommend applying Texture and Clarity only through a mask, only to the areas you want to enhance — usually not to an entire image.
One other thing about Dehaze. It has such a powerful effect that a lot of novices run to it first. I think this is a mistake because of some of the side effects of applying too much Dehaze. You should start image corrections using the second group of options in the Basic panel (Exposure, Contrast…), then if needed Texture and Clarity through masks, and then last, and only if needed, Curve and/or Dehaze.
I use Dehaze on very few images, and rarely use a value over 5 or 10. I am more likely to increase Dehaze above that if it’s an actual image of fog or haze and I really want to cut through it. But for normal image editing, a high Dehaze value is kind of a blunt instrument.
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