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Re: Guile-CV: Not a GRAY, RGB nor an RGBA image "sand.tif"

From: David Pirotte
Subject: Re: Guile-CV: Not a GRAY, RGB nor an RGBA image "sand.tif"
Date: Wed, 6 Dec 2017 12:47:11 -0200

Hello Daniele,

        Please let's keep technical  discussion on the list, it i very 
        and once again don't be shy, we are working together to make things 
        others may benefit and/or help ...

> I hadn't tried make check, and in fact it fails on a very similar
> error (pp-17-bf.png is right there when is trying to find it and it
> opens in an image viewer just fine):

> test-impex failed: assert-equal: expected:
> (85 95 1)
> got:
> (0 0 0)

Something went wrong with the installation of either vigra and/or vigra_c

        Did you install Vigra 'manually?
        What is the version of Vigra?

        What is the last commit of vigra_c on your side? (just go in the 
        where you cloned, run gilt log and grab the first line for me).

What is really weird here is that

        ,use (cv)

should not even work, because you are missing both libpng and libtiff, so for 
exact same reasons we were talking wrt your first message, dynlink should 
and 'ldd' would report failng libs ...

        could you check 'ldd' and paste the report here


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