Am 02.11.2010 16:49, schrieb Olivier Tournaire:

Hi all,

I am currently thinking on how to handle pipelines in some of my application. By pipeline, I mean "something" in which I can set an input, add some processing on that input, and retrieve the output (the result of the processing).

If I am not clear enough, let's go with an example. Suppose I have an image, and I want first to crop it, then apply a filter on the crop and get the result in another image.

Does boost has a library with such a feature?

Best regards,

Olivier

Hi,

those "Pipelines" are called streams in C++, and boost does provide a library for streams (boost.iostream).
However, given this image-example I'd not recomend you to use streams for this as those require copying, proxy object or move-semantics. Moreover iostreams are not thought to pass whole objects, but little pieces of information instead (like chars).

This doesn't mean that you can't use the operators << and >> for this though. You might want to look at boost.Proto to build a lazy evaluated expressions.

If you really try to build such an Image-Library, look at boost.GIL first.

Regards,

michi7x7