Sketchy Painting by emme

Sketchy Painting by emme
http://www.filterforge.com/filters/8847.html

oooooo..... I love it. This one is going straight to the favorites!

Congrats to the EP;-)

I have been on vacation for a while and have been searching all the new filters, and this one made me say "wow" out loud.

and another

This filter really captures the expression of paint strokes. Definitely superior to my un-submitted paint filters.

Wow, such a beautiful, organic filter. Just what I've been looking for.

But I am having trouble applying it on high-res photos (4800x3600 pixels). It just hangs - I can let it render for a couple hours and get no result. Anyone have suggestions?

emme - those HUs will come faster that you can imagine I guess, brilliant filters.

Emme - I reduced the size of the file, run it in the FF standalone (with PS not running) and was able to get it to work fine. Thanks!

GMM: I was trying to render a 4800x3360 image. As I mentioned, I let it run for 2 hours, and still nothing rendered. But when I reduced the size by half to 2400x1680, and used the stand-alone app, it rendered fine (slowly, but steadily).

Yeah, this is a tough filter to render. I began playing around with what emme created and stripped it bare minimum to increase the render speed. What's sad about this is that we lose out on the cool things emme did to ensure the looks of this filter. It's an amazing filter, lots of fine details and lots of strong Filter Forge work but it's very slow.

I just submitted an update that should make the filter render a little faster. Rendering the default preset went from about 20 sec to 14 sec. Also changed some of the presets.

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Skybase wrote: Emme, what's your computer stats? You sound like you have something amazing.

Core i7 920, 12GB ram, XP 64bit

This filter is absolutely awesome! It is my favorite by far .

PS Does anyone know what the highest resolution I can do is before it crashes FF? I just don't think it can handle all the awesomeness.

Excellent filter!
http://www.filterforge.com/gallery/117.html
Thank you!

I think this is my favoret filter so far.
Render in Vue, post work with FF.

I think I just sprained my jaw, it dropped so hard!
This is one of the best filters out there, and not only for FF

Hi,

I must say, this filter gives some spectacular results. I've been looking inside it to see how it works. I read about Bomber components that they can control the rotation of the particles it sprays using a grayscale map. I wonder if a map like this can be generated automatically from a bitmap image that would go through this filter. I'm just throwing ideas here, but I know that a bitmap image can be vectorialized. In the process, areas of color are recognized, so that you basically get vector shapes that follow those color regions (more or less according to how heavy you want the vector file to be and how much fidelity you need). The lines are made of vector points. If straight lines were to be drawn between these points, the rotation of these lines could theoretically be calculated. The rotation degrees (360) can be mapped to shades of gray (256 or whatever). So each straight line can generate a point at it's center that has a certain grayscale value according to the rotation value that the line has. Between these grayscale point a simple interpolation can be generated, and that would be the rotation map that could be used in this filter. So instead of having the grayscale derivative that is being used right now for what in the interface appears as "Rotation smooth", there could be much better accuracy in representing the image being filtered even when the parameters are set to a type of semi-abstract painting. Can someone with experience help out with ideas? Can the rotation map be generated in Filter Forge? If not, does anyone know how it could be created outside Filter Forge?

I am sorry Alexandru, But I can´t read the text if it is all in one solid block, I have separated it, I hope you do not mind

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Alexandru Nechifor I must say, this filter gives some spectacular results. I've been looking inside it to see how it works. I read about Bomber components that they can control the rotation of the particles it sprays using a grayscale map. I wonder if a map like this can be generated automatically from a bitmap image that would go through this filter. I'm just throwing ideas here, but I know that a bitmap image can be vectorialized. In the process, areas of color are recognized, so that you basically get vector shapes that follow those color regions (more or less according to how heavy you want the vector file to be and how much fidelity you need). The lines are made of vector points. If straight lines were to be drawn between these points, the rotation of these lines could theoretically be calculated. The rotation degrees (360) can be mapped to shades of gray (256 or whatever). So each straight line can generate a point at it's center that has a certain grayscale value according to the rotation value that the line has. Between these grayscale point a simple interpolation can be generated, and that would be the rotation map that could be used in this filter. So instead of having the grayscale derivative that is being used right now for what in the interface appears as "Rotation smooth", there could be much better accuracy in representing the image being filtered even when the parameters are set to a type of semi-abstract painting. Can someone with experience help out with ideas? Can the rotation map be generated in Filter Forge? If not, does anyone know how it could be created outside Filter Forge?

Skybase, yes, that's the part I was referring to. I didn't realize that it was actually already doing what I was looking for, but in a rougher way.

First of all let me just say I'm amazed at the simplicity and elegance of this method of generating a grayscale map of the direction in which areas of contrast in an image flow. I've loaded a simple grayscale sphere into the filter to understand the process better. I still don't know exactly how does Derivatives work and what exactly Lookup did, but I kind of understand.

But there is a problem. You can see in the attached image that the edge of the sphere, after passing through the Derivatives and Lookup, generates some pretty large noise. When the particles sprayed sample rotation values from that noise region, they come up at awkward angles, sometimes giving unpleasant results. In the attached image you can see some white brush strokes that come at a cross angle to the edge of the circle.

Is there a way to get rid of that noise? Using the Rotation smooth control does get rid of some of the noise, but looses overall accuracy of the map as well. I would like to keep the detail but not have the noise.

Thanks.

It didn't work. Maybe I didn't understand how to set it up.

Skybase, thanks for the help. The sphere was an image file. I was only using it to see clearly how things work. It seems that the noise is inevitable (it was present both through Lookup and Arc Tangent). I'm speaking with some programmer friends about ways of using Action Script in Flash to generate the rotation grayscale map through the method I mentioned earlier (vectorializing). I think that getting a perfect rotation map will make this filter closer to a real painting by getting rid of any brush stroke that obviously contradicts the rotation flow of the elements in the image.

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SpaceRay

The filter wasn't really designed to work with transparency, but here's a quick fix. Not sure how well it works.

Sketchy Painting Alpha.ffxml