[magick-users] Problem with MagickCombineImages() C API

[Felipe Maier Cruz]

Thanks, it work perferct

Saludos

Felipe


On 8/2/07, Anthony Thyssen <anthony at griffith.edu.au> wrote:
>
> "Felipe Maier Cruz" on  wrote...
> | Hi All,
> |
> | Its my first time here, Hola a todos! :D
> |
> | I have a question about MagickCombineImages() on C API, y want to
> achieve
> | this from C:
> |
> | convert  separate_red.gif separate_green.gif separate_blue.gif
> | -combine  rose_combined.gif [*]
> |
> | [*] http://www.imagemagick.org/Usage/channels/#combine
> | -
> |
> | but, doing something like this ...
> | ...
> |   status_r =MagickReadImage(magick_wand_r, "separate_red.gif");
> |   status_g =MagickReadImage(magick_wand_g, "separate_green.gif");
> |   status_b =MagickReadImage(magick_wand_b, "separate_blue.gif");
> |  ...
> |   magick_wand = MagickCombineImages(magick_wand_r, RedChannel);
> |   magick_wand = MagickCombineImages(magick_wand_g, GreenChannel);
> |   magick_wand = MagickCombineImages(magick_wand_b, BlueChannel);
> | ...
> |
> | I only get the image but in yellow ... What im doing wrong here ??
> |
> All three images must be in the same magick wand.
>
>    status_a = MagickAddImage(magick_wand_r, magick_wand_g);
>    status_a = MagickAddImage(magick_wand_r, magick_wand_b);
>
> now you can combine them
>
>    magick_wand = MagickCombineImages(magick_wand_r,
>                      RedChannel|GreenChannel|BlueChannel)
>
>
> I think the documentation is a bit out of date.
>
>   * MagickAddImage()    docs  has 'images' instead of  'add_wand'
>
>   * MagickCombineImages()  docs do not mention the 'channel' argument
>       And the PHP version of the doc says only ONE of the channels
>       can be given (which was only true for OLD versions
>       of MagickSeparateImages() )
>
>
>   Anthony Thyssen ( System Programmer )    <A.Thyssen at griffith.edu.au>
>
> -----------------------------------------------------------------------------
>     Murphy said, 'Constants aren't', and Murphy was apparently one
>     of the gods of this universe.           -- Rick Cook, "Wizard's bane"
>
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>      Anthony's Home is his Castle     http://www.cit.gu.edu.au/~anthony/
>