Plugin curiosity for grayscale images

A
Posted By
AArDvarK
Feb 22, 2004
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321
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I wonder about the new color filters in CS/8, they do not work on grayscale images, which I would like. I would
like a red or orange tint to work on a grayscale image the same way a color filter works on black and white film.
I tried changing a GS file to RGB, but I only get the color tinting … obviously. Do any emulation plugins exist for this idea? Or are any tutorials out there?
Thanks, Alex

How to Master Sharpening in Photoshop

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J
john
Feb 22, 2004
In article <y6%Zb.8699$>, "AArDvarK"
wrote:

I wonder about the new color filters in CS/8, they do not work on grayscale images, which I would like. I would
like a red or orange tint to work on a grayscale image the same way a color filter works on black and white film.
I tried changing a GS file to RGB, but I only get the color tinting … obviously. Do any emulation plugins exist for this idea? Or are any tutorials out there?

Are you suggesting that CS should allow you to apply, for example, an orange filter to a B&W image and the sky would have a darker appearance as if the situation were a B&W photo shoot? It _cannot_ be done. Period. Color contrast filters work in B&W because they are applied to color. A B&W image has no color to contrast.

You can, of course, do what you wish with a color image, but that’s not what you asked.
-xiray-
Feb 24, 2004
On Sun, 22 Feb 2004 10:13:29 -0600, (jjs)
wrote:

In article <y6%Zb.8699$>, "AArDvarK"
wrote:

I wonder about the new color filters in CS/8, they do not work on grayscale images, which I would like. I would
like a red or orange tint to work on a grayscale image the same way a color filter works on black and white film.
I tried changing a GS file to RGB, but I only get the color tinting … obviously. Do any emulation plugins exist for this idea? Or are any tutorials out there?

It _cannot_ be done.

Well, the effect CAN be achieved, just not in exactly the same way.

Of course one choice would be to select the area and either dodge or burn. But there are a lot of other ways…

IF you’ve only got a b&w to start with, you can look at what the tool found on the menu Image> Adjustments> Curves. And if you are starting with a color image (a real color image not a B&W that is simply in RGB mode), then you can change the curve of each of the RGB colors independently.

IF you’re starting with a color image there a bunch of ways to simulate that orange photography filter (i.e., to deepen the blue so that it turns out to be darker when converted to b&w). But to do so you need to work with a color image.

Are you familiar with all the choices available on the Image> Adjustments menu? These are the tools that will let you make changes to the color of your images. Here’s two choices to look at immediately Image> Adjustments/ Replace Color
Image> Adjustments/ Variations

Here’s another interesting exercise using a different method, Open a color image with some sky and clouds. Create a new layer. Copy the image on the background layer and paste it into the new layer (now the same image is on both layers). Then on the new layer (which should be on top of the background layer in the layer palette) instead of "normal" set it to "multiply" as the blending mode.

The results are interesting aren’t they? Try other blending modes. Try using blending modes with other tools, fiddle with the opacity of the layer, or do something like perhaps erasing some of the portions of the second image in your new layer.

AND now turn off the layer that duplicate layer and add a third layer. This time fill the layer with some solid color (what the heck, pick an orange and fill the layer). Now with the background image and the orange layer visible, start fiddling with the blending modes.

Try using green, blue… whatever.

The effects are endless.

PS is even more capable than most people know. Rather than look for a plug in, I seriously think you might want to look at some of the Photoshop books at your local bookstore. Pickup Adobe’s Photoshop Classroom in a Book as a starting point.

As for tutorials and free stuff, you might want to have a look at http://share.studio.adobe.com/default.asp There’s all sorts of downloads there. Perhaps you can find an Action. BUT frankly fiddling with the tools in PS is more fun.

How to Master Sharpening in Photoshop

Give your photos a professional finish with sharpening in Photoshop. Learn to enhance details, create contrast, and prepare your images for print, web, and social media.

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