Filter Forge - Derivatives

Dave C. Schneider

Posts: 3
Filters: 1

Concerning feature wishes, I would very much like to experiment with a derivative (or image gradient, in the technical sense) component. Ideally, it should be able to return its results in X-Y-component form as well as in norm-orientation-form. Some Gaussian prefiltering as performed by a Sobel kernel would be nice.

Moreover, nonlinear filters such as median or dilation/erosion would be cool. I see, however, that those are intricate to intergrate in a resolution independent framework. However, the Gaussian component in Filter Forge has some kind of kernel size parameter as well, hasn't it?

Well, and the coolest of all would be a C++ component API, ideally with an image format compatible to the Intel Image Processing Library used in OpenCV. smile:)

This could make FilterForge the numer one prototyping tool for algorithms development in image processing!

David

Posted: September 19, 2006 7:00 am

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Vladimir Golovin
Administrator

Filter Forge, Inc.

Posts: 3106
Filters: 54

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Dave C. Schneider wrote: I would very much like to experiment with a derivative

Yes, the derivative component is already planned. All features you suggest are certainly possible (as for pre-filtering, I think it would be better to separate Sobel into another component, so that it can be used both in conjunction with Derivative and separately).

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Dave C. Schneider wrote: Moreover, nonlinear filters such as median or dilation/erosion would be cool. I see, however, that those are intricate to intergrate in a resolution independent framework.

Agreed. We have some ideas about Minimum / Maximum / Median components. Filter Forge already has an infrastructure for bitmap-based components, so technically, this won't be a problem.

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Dave C. Schneider wrote: Well, and the coolest of all would be a C++ component API,

We considered an API / SDK, but I don't think we'll see this anytime soon. We also considered a component for scripting with a built-in Javascript or a similar language -- and personally I like this idea better than the SDK.

Posted: September 20, 2006 4:44 am

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