Want your gradient map to organically map a tint to your image? Adobe Photoshop gives you the option of using noise gradient maps to add color naturally to an image. How do you apply a noise gradient map? In this movie, author Richard Harrington demonstrates how to add a noise gradient map to your image in Adobe Photoshop.
- For the most part, we've been working with a traditional gradient, a gradual blend from one color to another. But, Photoshop supports noise gradients, which is the randomization of certain color values to create a more organic, noise-type gradient, that just reassigns the colors a bit more randomly. When done correctly, this is great way to add a tint to your image. Let's open up a new image. In this case, I'm a take an image of the night sky, and open it up. Now the clouds are in here, and those are okay.
I'll just White Balance on those clouds a little bit. Looks better. And I'll Open up that object. While I like this, I'd like to introduce a little bit of shifting. I'll add the Gradient Map, and click to edit it. Instead of a Solid Gradient, I'll switch to Noise. And now, I can start to remap the colors. You'll notice that all the RGB values are in use. So, if I uncheck Restrict Colors and just keep clicking Randomize, you'll see that it uses the full spectrum to remap the colors.
On the other hand, I can limit this. I can pull it down so it uses no greens, and just the darkest reds, and the brighter blues. And now clicking Randomize, it goes through and comes up with new shades. I kinda like this one, darker tones. That works nicely. And adjusting the Roughness is going to affect how this blends. So very rough creates really hard edges. While less rough creates a smoother gradient, that still has a bit of noise in it.
I like that. You can Add Transparency, and that will make subtle shifts. But that looks pretty good. Let's click New, and I'll call that one Night Sky. Now I can rename that, since I didn't give it a name before. And click OK. Now, I'll simply change the mode here. Let's try something like Hue. And I like that, it's just shifting the blues to the purplish tones that I wanted.
Let's Open up another image. In this case, another night sky image, and a landscape. We can now grab that Gradient Map and simply drop it on to another image. There's the purplish tones. Make that a little more subtle, Soft Light.
And now, it's making that look like it's nighttime. Little bit bright for me, so I toss in a Vibrance adjustment there and just tone it down a little. But that definitely looks like a conversion from daytime to nighttime. Grab the same Gradient Map, take it to another night sky image and drop it, and you see we got those great, rich, purplish tones that I liked. So, this makes it easy to consistently come up with a preset that you want to use on images.
And this can be used a wide variety of ways. For example, let's take this shot here of just more of a traditional street scene. And Open that up. Using that same Gradient Map, I can get a whole wealth of looks. There it is, and I'll choose it. Choosing the move tool, and using the Shift + plus (+) key, I can step through and remap that.
For a very subtle look, that's stronger, Soft Light, I like that as a color grade. And some of my favorites are still going to be the use of Hue. This is one of the easiest ways to create subtle tints and color casts. Saturation bumps it up, while Color is a bit stronger. And remember, you can combine this, easily tossing on a Black & White adjustment layer, and clicking Auto, and applying that Gradient Map to a black and white image.
This will give you greater flexibility and make a more consistent tinted image. The use of Black & White, plus a Noise gradient, is a great way to come up with a preset. You'll see here, toss in that Black & White adjustment, and hit Auto, and I can easily move the sliders to influence the transformation. Brightening up the rocks a little bit, darkening down the sky, and I've got a very cool look that didn't take a long time to create.
In this course, Rich Harrington demystifies lookup tables (LUTs) and shows how to use them with Photoshop, Lightroom, and other Adobe CC applications. He also shows how to use gradient maps—where tints are based on the luminance values in the image—to add creative color and noise to images, and how to organize, store, and share these assets with other Creative Cloud programs and other photo and video professionals.
- Understanding the role of LUTS
- Working with LUTs and Looks in Premiere Pro
- Creating custom LUTs
- Cross-application workflows
- Managing your LUT library and presets