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Tutorial (link): Edges, Outlines, Sketch effect
In the first example where she uses Smart Blur > Edge Only, another alternative is to apply Stylize > Diffuse > Anisotropic (to soften the edges a bit). Follow this with Edit > Fade, which allows you to control the degree of edge softening.
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To Tammy's excellent examples add:
(1) Find Edges:
* Duplicate Background
* Stylize > Find Edges
* Image > Adjustments > Desaturate
* Image > Adjustments > Levels (move middle slider to the left to get rid of some of the noise)
* Optional: Layer > New Layer Mask > Reveal all
* Below the sketch layer and above the original Background add a new layer and fill it with white.
* Click on the Find Edges layer mask and airbrush black to remove excess noise.
* Merge down when finished
(2) Glowing Edges: an alternative to Find Edges:
* After duplicating the Background, try Stylize > Glowing Edges instead. This filter allows you to have some control over edge characteristics.
* Image > Adjustments > Invert - To give you colored lines on white.
* The rest of the steps are the same starting with the Desaturate step above.
* Background: Layer > Duplicate
* Background copy: Shift + Ctrl + U (Desaturate)
* Background copy: Layer > Duplicate
* Background copy 2: Change the layer blend mode from Normal to Difference, resulting in an all-black image
* Layer > New Adjustment Layer > Invert: Change to white
* Select the Move tool (press V)
* Click on Background copy 2: nudge the layer using the arrow keys until the desired degree of line detail is achieved. Usually a couple clicks down and a couple to the right will do it. It's a total judgment call.
* When satisfied create a new layer at the top of the layer stack.
* Alt + Layer > Merge visible to merge all layers into the top one.
Last edited by DannyRaphael; 03-09-2005 at 12:36 PM. Reason: Add another method - displacement/Difference
PS Anisotropic Filter ?
Hi Danny, thank you, for the link, I am very interested in sketches.
I have a question....
Do you know of a filter that would work in PSP and would emulate the PS Anisotropic filter ? I am using PSP9 and the program does not have the 'Anisotropic' filter. I have several tutorials that call for the Anisotropic filter, they just don't work well without that filter.
I can't find a filter that is even close to doing what the Anisotropic does. I have run searches and nothing.....
Joy, I might be able to help. I've got anistropic code.
I just have to finish ripping/converting it and compile it.
You should be able to use it.
However, things are really bad over here right about now.
Hopefully I'll have some time this weekend.
If I disappear longer than the weekend, send me a PM.
Stroker, that would be the greatest thing since sliced bread....:-)
Thank you, thank you, ever so much.
You can get in the ballpark of the Anisotropic effect by applying some Gaussian Blur followed by some Unsharp Mask. It might take 1-3 applications, depending on the line characteristics and the GB & USM settings used.
I was thinking this over while chasing the kids and trying to do the dishes. I think Displacement Sharpening by MV is the better route. I think it would be the more versatile route and save me the time of digging into various things.
Displacement sharpening is basically edge detection and then moving pixels towards those edges. Sometimes looks a lot like Smart Blur. Sometimes it works very well and sometimes it's poopy.
Now, MV has tossed in an option to View Edges and an anistropic kernel. Isn't that nice of him? Kudos, MV.
Two possible routes:
1. Let Displace Sharpen find your edges with Threshold and use View Edges.
2. Use another method to find edges, a little bit of blurring, then Displace Sharpen.
Not to mention having Displace Sharpen in your toolbox for other uses.
Not sure how well Displace Sharpen will work as a replacement for Diffuse > Anistropic, though. For regular anistropic edge work, should work more than dandy with the extra options.
Also, I have heard of a few issues of FM compiled plugs having some issues with PSP. If you can't use it, I'll do a little digging into this.
Let me know.
Here's to hoping.
Stroker, FM works in my PSP I can't tell you how much I appreciate the help.
Not ever having used Anisotropy, I left the filter set at default. I will play with the settings. I am not sure what a before and after would look like, but I tried it and it made a big difference, it looks good to me
I have also been searching for 'Crystalize', any suggestions would be appreciated. PSP has Pixelate, but it just doesn't do the job. I downloaded a filter that was also called Pixelate, but has more settings, it does work better than the PSP filter, but, I'm sure it's not the same as Crystalize.
Danny, thank you for the suggestion, I will also give your idea a try.
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