device/canon_300d_raw_linear.h

   1 // Copyright 2003, 2004 David Hilvert <dhilvert@auricle.dyndns.org>,
   2 //                                    <dhilvert@ugcs.caltech.edu>
   3
   4 /*  This file is part of the Anti-Lamenessing Engine.
   5
   6     The Anti-Lamenessing Engine is free software; you can redistribute it
   7     and/or modify it under the terms of the GNU General Public License as
   8     published by the Free Software Foundation; either version 3 of the License,
   9     or (at your option) any later version.
  10
  11     The Anti-Lamenessing Engine is distributed in the hope that it will be
  12     useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
  14     Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with the Anti-Lamenessing Engine; if not, write to the Free Software
  18     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19 */
  20
  21 #ifndef __canon_300d_raw_linear_h__
  22 #define __canon_300d_raw_linear_h__
  23
  24 #include "../d2.h"
  25
  26 /*
  27  * Device module for the Canon 300D (Digital Rebel).
  28  *
  29  * CRW files are not directly supported; use Dave Coffin's dcraw program
  30  * with arguments -d -4 to produce a raw linear PPM file.
  31  *
  32  * http://www.cybercom.net/~dcoffin/dcraw/
  33  */
  34
  35 class canon_300d_raw_linear {
  36 public:
  37
  38         /*
  39          * Linear colorspace PSF
  40          */
  41
  42         class lpsf : public d2::box {
  43         public:
  44                 /*
  45                  * A box filter of diameter 1 results in an optical fill factor
  46                  * of 100%.  This probably isn't exactly right; there is lots
  47                  * of room for experimentation.
  48                  */
  49
  50                 lpsf() : d2::box (0.5) {
  51                 }
  52         };
  53
  54         /*
  55          * Exposure
  56          */
  57
  58         class exposure : public d2::exposure_default {
  59                 d2::pixel linearize(d2::pixel input) const {
  60                         return input * get_multiplier();
  61                 }
  62                 d2::pixel unlinearize(d2::pixel input) const {
  63                         return input / get_multiplier();
  64                 }
  65         };
  66
  67         /*
  68          * View Angle
  69          */
  70
  71         static ale_pos view_angle() {
  72                 fprintf(stderr, "\n\n*** Error: tried to obtain view angle for a sensor device. ***\n\n");
  73                 exit(1);
  74                 // return 30;
  75         }
  76 };
  77
  78 #undef LPSF_ROWS
  79 #undef LPSF_COLS
  80 #undef NLPSF_ROWS
  81 #undef NLPSF_COLS
  82
  83 #endif