Hi Mateusz, transform_pixels is gil's attempt to provide the user with STL like transform algorithm. You can use any sort of operation you want which would include pixel conversion. The scope of copy_and_convert_pixels is suppose to be limited to converting pixels from one format to another. Sure, you could use this function for something else but that's not the intended purpose. Also, copy_and_convert_pixel will use a bunch of conversion algorithms ( see color_convert.hpp ) automatically. transform_pixels is unaware of such operations. Hope this helps, Christian the application is for transform_pixels is much bigger than for copy_and_convert_pixels On Thu, Sep 27, 2012 at 1:08 PM, Mateusz Loskot wrote:

Hi,

What is relation, if any, and differences between these two Boost.GIL algorithms? They seem to be similar or the copy_and_convert_pixels seems like a specialisation of the transform_pixels. Is that correct understanding of these algorithms?

Best regards, -- Mateusz Loskot, http://mateusz.loskot.net _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users