import.c

   1 /*########################################################################
   2
   3   The contents of this file are subject to the Mozilla Public License
   4   Version 1.0(the "License");   You  may  NOT  use this file except in
   5   compliance with the License. You may obtain a copy of the License at
   6                 http:// www.mozilla.org/MPL/
   7   Software distributed under the License is distributed on an "AS IS"
   8   basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
   9   the License for the specific language governing rights and limitations
  10   under the License.
  11
  12   The Initial Developer of the Original Code is Shivang Patel.
  13
  14   Copyright(C) 2002. All Rights Reserved.
  15
  16   Authors: Shivang Patel
  17            Jaap de Haan(jdh)
  18            Matthias Wenzl
  19
  20   Changes: jdh -> Added support for ImageMagick that enables
  21                   to import files from more than 40 formats.
  22            mw  -> Removed deprecated, adapted for dvp lu.
  23
  24 ########################################################################*/
  25
  26
  27 #include "import.h"
  28
  29 #include <string.h>
  30 #include <stdio.h>
  31 #include <magick/api.h>
  32
  33
  34
  35 /* imports a fingeprint image from a file */
  36 FvsError_t FvsImageImport(FvsImage_t image, const FvsString_t filename)
  37 {
  38     ExceptionInfo exception;
  39     Image*        magicimage;
  40     ImageInfo*    magicinfo;
  41
  42     FvsError_t ret = FvsOK;
  43     FvsByte_t*    buffer;
  44     FvsInt_t      pitch;
  45     FvsInt_t      height;
  46     FvsInt_t      width;
  47     FvsInt_t i;
  48
  49     /* Init Magick environment */
  50     MagickCoreGenesis(".",MagickFalse);
  51     GetExceptionInfo(&exception);
  52
  53     /* Create an empty imageinfo */
  54     magicinfo = CloneImageInfo((ImageInfo*)NULL);
  55
  56     /* set the filename */
  57     (void)strcpy(magicinfo->filename, filename);
  58
  59     /* read images */
  60     magicimage = ReadImage(magicinfo, &exception);
  61     if (exception.severity!=UndefinedException)
  62       CatchException(&exception);
  63     if (magicimage!=(Image*)NULL)
  64     {
  65         /* dump info for debugging purposes at the moment */
  66         /* DescribeImage(magicimage, stdout, 0); */
  67
  68         /* allocate the image for Fvs */
  69         ret = ImageSetSize(image,
  70             (FvsInt_t)magicimage->columns,
  71             (FvsInt_t)magicimage->rows);
  72         if (ret==FvsOK)
  73         {
  74             /* get buffer and pitch */
  75             buffer = ImageGetBuffer(image);
  76             pitch  = ImageGetPitch(image);
  77             height = ImageGetHeight(image);
  78             width  = ImageGetWidth(image);
  79
  80             /* set image type and normalize */
  81             NormalizeImage(magicimage);
  82
  83             /* copy the data */
  84             for (i=0; i<height; i++)
  85             {
  86                 ExportImagePixels(magicimage, 0, i, width, 1, "I", CharPixel,
  87                         buffer+i*pitch, &exception);
  88             }
  89         }
  90         DestroyImage(magicimage);
  91     }
  92     else
  93         ret = FvsFailure;
  94
  95     /* do cleanup */
  96     DestroyImageInfo(magicinfo);
  97     DestroyExceptionInfo(&exception);
  98     MagickCoreTerminus();
  99
 100     return ret;
 101 }
 102
 103
 104