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im_cp_desc(3)                                                    im_cp_desc(3)




NAME

       im_cp_desc,  im_append_Hist  -  copy  most  of  an  image descriptor to
       another image descriptor.


SYNOPSIS

       #include <vips/vips.h>

       int im_cp_desc_array( IMAGE *out, IMAGE *in[] );

       int im_cp_descv( IMAGE *out, IMAGE *in1, ... );

       int im_cp_desc( IMAGE *out, IMAGE *in );

       int im_append_Hist( IMAGE *out, IMAGE *in );



DESCRIPTION

       im_cp_desc_array(3) takes an output image and a NULL-terminated list of
       input images, which must contain at least one input image.

       It  copies the fields describing the size, bands, type, resolution, and
       coding from the first input image to the output image. History and meta
       from all images are copied over. If two input images have the same meta
       tag, the earlier one takes precedence.

       im_cp_descv(3)    is    a    varargs    conveniece     function     for
       im_cp_desc_array(3).

       im_cp_desc(3)  is  a  convenience  function  which  calls  im_cp_descv(
       image1, image2, NULL ).

       im_append_Hist(3) appends the history attached to image2 to the end  of
       the  history  on image1. It is used by image processing functions which
       take more than one image as input, and which need to make sure that all
       the input history appears in the output.

       The  first line of image2 history is not copied, as this conventionally
       holds background information which is not part of the file history.



RETURN VALUE

       The function returns 0 on success and -1 on error.


COPYRIGHT

       N. Dessipris


AUTHOR

       N. Dessipris - 11/04/1990



                                 11 April 1990                   im_cp_desc(3)

im_cp_desc 7.14.5 - Generated Sat Sep 6 18:57:30 CDT 2008
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