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Posted by Kimmo Laine on 07/31/06 07:24
<retheeshnewage@gmail.com> wrote in message
news:1154322970.581306.230480@b28g2000cwb.googlegroups.com...
>I have a doubt in php.I wrote a php program to convert colour Images to
>
> balck & white.It is working fine with JPEG files and PNG files.When it
> comes to GIF files I am not getting the colour Image.I think I found
> the reason of getting error.But I am not able to solve it
> I am pasting the code which I wrote
>
> The reason I think is when I am extracting the RGB value from the
> image,R and G will be zero everytime.But I am getting the value of B.
> As a Result I am getting a Black Box instead of Black and white Image
>
In the manual at php.net it says:
Note: GIF support was removed from the GD library in Version 1.6, and added
back in Version 2.0.28. This function is not available between these
versions.
Check your GD version to see if it supports gif or not.
(I remember a time when gif was not supported. It's nice to see they've
added it in the package again.)
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