| /* im_falsecolour |
| * |
| * 23/6/95 JC |
| * - rewritten for PIO |
| * - now walks edges of colour cube to get more saturated appearance |
| * 21/8/05 |
| * - uses falsecolour scale from PET scanner |
| * 7/4/06 |
| * - hmm, reversed scale |
| * 29/1/10 |
| * - cleanups |
| * - gtkdoc |
| */ |
| |
| /* |
| |
| This file is part of VIPS. |
| |
| VIPS is free software; you can redistribute it and/or modify |
| it under the terms of the GNU Lesser General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| |
| */ |
| |
| /* |
| |
| These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk |
| |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| #include <config.h> |
| #endif /*HAVE_CONFIG_H*/ |
| #include <vips/intl.h> |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| |
| #include <vips/vips.h> |
| |
| #ifdef WITH_DMALLOC |
| #include <dmalloc.h> |
| #endif /*WITH_DMALLOC*/ |
| |
| /* Falsecolour scale nicked from a PET scan. |
| */ |
| static unsigned char PET_colour[][3] = { |
| { 12, 0, 25 }, |
| { 17, 0, 34 }, |
| { 20, 0, 41 }, |
| { 22, 0, 45 }, |
| { 23, 0, 47 }, |
| { 27, 0, 55 }, |
| { 12, 0, 25 }, |
| { 5, 0, 11 }, |
| { 5, 0, 11 }, |
| { 5, 0, 11 }, |
| { 1, 0, 4 }, |
| { 1, 0, 4 }, |
| { 6, 0, 13 }, |
| { 15, 0, 30 }, |
| { 19, 0, 40 }, |
| { 23, 0, 48 }, |
| { 28, 0, 57 }, |
| { 36, 0, 74 }, |
| { 42, 0, 84 }, |
| { 46, 0, 93 }, |
| { 51, 0, 102 }, |
| { 59, 0, 118 }, |
| { 65, 0, 130 }, |
| { 69, 0, 138 }, |
| { 72, 0, 146 }, |
| { 81, 0, 163 }, |
| { 47, 0, 95 }, |
| { 12, 0, 28 }, |
| { 64, 0, 144 }, |
| { 61, 0, 146 }, |
| { 55, 0, 140 }, |
| { 52, 0, 137 }, |
| { 47, 0, 132 }, |
| { 43, 0, 128 }, |
| { 38, 0, 123 }, |
| { 30, 0, 115 }, |
| { 26, 0, 111 }, |
| { 23, 0, 108 }, |
| { 17, 0, 102 }, |
| { 9, 0, 94 }, |
| { 6, 0, 91 }, |
| { 2, 0, 87 }, |
| { 0, 0, 88 }, |
| { 0, 0, 100 }, |
| { 0, 0, 104 }, |
| { 0, 0, 108 }, |
| { 0, 0, 113 }, |
| { 0, 0, 121 }, |
| { 0, 0, 125 }, |
| { 0, 0, 129 }, |
| { 0, 0, 133 }, |
| { 0, 0, 141 }, |
| { 0, 0, 146 }, |
| { 0, 0, 150 }, |
| { 0, 0, 155 }, |
| { 0, 0, 162 }, |
| { 0, 0, 167 }, |
| { 0, 0, 173 }, |
| { 0, 0, 180 }, |
| { 0, 0, 188 }, |
| { 0, 0, 193 }, |
| { 0, 0, 197 }, |
| { 0, 0, 201 }, |
| { 0, 0, 209 }, |
| { 0, 0, 214 }, |
| { 0, 0, 218 }, |
| { 0, 0, 222 }, |
| { 0, 0, 230 }, |
| { 0, 0, 235 }, |
| { 0, 0, 239 }, |
| { 0, 0, 243 }, |
| { 0, 0, 247 }, |
| { 0, 4, 251 }, |
| { 0, 10, 255 }, |
| { 0, 14, 255 }, |
| { 0, 18, 255 }, |
| { 0, 24, 255 }, |
| { 0, 31, 255 }, |
| { 0, 36, 255 }, |
| { 0, 39, 255 }, |
| { 0, 45, 255 }, |
| { 0, 53, 255 }, |
| { 0, 56, 255 }, |
| { 0, 60, 255 }, |
| { 0, 66, 255 }, |
| { 0, 74, 255 }, |
| { 0, 77, 255 }, |
| { 0, 81, 255 }, |
| { 0, 88, 251 }, |
| { 0, 99, 239 }, |
| { 0, 104, 234 }, |
| { 0, 108, 230 }, |
| { 0, 113, 225 }, |
| { 0, 120, 218 }, |
| { 0, 125, 213 }, |
| { 0, 128, 210 }, |
| { 0, 133, 205 }, |
| { 0, 141, 197 }, |
| { 0, 145, 193 }, |
| { 0, 150, 188 }, |
| { 0, 154, 184 }, |
| { 0, 162, 176 }, |
| { 0, 167, 172 }, |
| { 0, 172, 170 }, |
| { 0, 180, 170 }, |
| { 0, 188, 170 }, |
| { 0, 193, 170 }, |
| { 0, 197, 170 }, |
| { 0, 201, 170 }, |
| { 0, 205, 170 }, |
| { 0, 211, 170 }, |
| { 0, 218, 170 }, |
| { 0, 222, 170 }, |
| { 0, 226, 170 }, |
| { 0, 232, 170 }, |
| { 0, 239, 170 }, |
| { 0, 243, 170 }, |
| { 0, 247, 170 }, |
| { 0, 251, 161 }, |
| { 0, 255, 147 }, |
| { 0, 255, 139 }, |
| { 0, 255, 131 }, |
| { 0, 255, 120 }, |
| { 0, 255, 105 }, |
| { 0, 255, 97 }, |
| { 0, 255, 89 }, |
| { 0, 255, 78 }, |
| { 0, 255, 63 }, |
| { 0, 255, 55 }, |
| { 0, 255, 47 }, |
| { 0, 255, 37 }, |
| { 0, 255, 21 }, |
| { 0, 255, 13 }, |
| { 0, 255, 5 }, |
| { 2, 255, 2 }, |
| { 13, 255, 13 }, |
| { 18, 255, 18 }, |
| { 23, 255, 23 }, |
| { 27, 255, 27 }, |
| { 35, 255, 35 }, |
| { 40, 255, 40 }, |
| { 43, 255, 43 }, |
| { 48, 255, 48 }, |
| { 55, 255, 55 }, |
| { 60, 255, 60 }, |
| { 64, 255, 64 }, |
| { 69, 255, 69 }, |
| { 72, 255, 72 }, |
| { 79, 255, 79 }, |
| { 90, 255, 82 }, |
| { 106, 255, 74 }, |
| { 113, 255, 70 }, |
| { 126, 255, 63 }, |
| { 140, 255, 56 }, |
| { 147, 255, 53 }, |
| { 155, 255, 48 }, |
| { 168, 255, 42 }, |
| { 181, 255, 36 }, |
| { 189, 255, 31 }, |
| { 197, 255, 27 }, |
| { 209, 255, 21 }, |
| { 224, 255, 14 }, |
| { 231, 255, 10 }, |
| { 239, 255, 7 }, |
| { 247, 251, 3 }, |
| { 255, 243, 0 }, |
| { 255, 239, 0 }, |
| { 255, 235, 0 }, |
| { 255, 230, 0 }, |
| { 255, 222, 0 }, |
| { 255, 218, 0 }, |
| { 255, 214, 0 }, |
| { 255, 209, 0 }, |
| { 255, 201, 0 }, |
| { 255, 197, 0 }, |
| { 255, 193, 0 }, |
| { 255, 188, 0 }, |
| { 255, 180, 0 }, |
| { 255, 176, 0 }, |
| { 255, 172, 0 }, |
| { 255, 167, 0 }, |
| { 255, 156, 0 }, |
| { 255, 150, 0 }, |
| { 255, 146, 0 }, |
| { 255, 142, 0 }, |
| { 255, 138, 0 }, |
| { 255, 131, 0 }, |
| { 255, 125, 0 }, |
| { 255, 121, 0 }, |
| { 255, 117, 0 }, |
| { 255, 110, 0 }, |
| { 255, 104, 0 }, |
| { 255, 100, 0 }, |
| { 255, 96, 0 }, |
| { 255, 90, 0 }, |
| { 255, 83, 0 }, |
| { 255, 78, 0 }, |
| { 255, 75, 0 }, |
| { 255, 71, 0 }, |
| { 255, 67, 0 }, |
| { 255, 65, 0 }, |
| { 255, 63, 0 }, |
| { 255, 59, 0 }, |
| { 255, 54, 0 }, |
| { 255, 52, 0 }, |
| { 255, 50, 0 }, |
| { 255, 46, 0 }, |
| { 255, 41, 0 }, |
| { 255, 39, 0 }, |
| { 255, 36, 0 }, |
| { 255, 32, 0 }, |
| { 255, 25, 0 }, |
| { 255, 22, 0 }, |
| { 255, 20, 0 }, |
| { 255, 17, 0 }, |
| { 255, 13, 0 }, |
| { 255, 10, 0 }, |
| { 255, 7, 0 }, |
| { 255, 4, 0 }, |
| { 255, 0, 0 }, |
| { 252, 0, 0 }, |
| { 251, 0, 0 }, |
| { 249, 0, 0 }, |
| { 248, 0, 0 }, |
| { 244, 0, 0 }, |
| { 242, 0, 0 }, |
| { 240, 0, 0 }, |
| { 237, 0, 0 }, |
| { 234, 0, 0 }, |
| { 231, 0, 0 }, |
| { 229, 0, 0 }, |
| { 228, 0, 0 }, |
| { 225, 0, 0 }, |
| { 222, 0, 0 }, |
| { 221, 0, 0 }, |
| { 219, 0, 0 }, |
| { 216, 0, 0 }, |
| { 213, 0, 0 }, |
| { 212, 0, 0 }, |
| { 210, 0, 0 }, |
| { 207, 0, 0 }, |
| { 204, 0, 0 }, |
| { 201, 0, 0 }, |
| { 199, 0, 0 }, |
| { 196, 0, 0 }, |
| { 193, 0, 0 }, |
| { 192, 0, 0 }, |
| { 190, 0, 0 }, |
| { 188, 0, 0 }, |
| { 184, 0, 0 }, |
| { 183, 0, 0 }, |
| { 181, 0, 0 }, |
| { 179, 0, 0 }, |
| { 175, 0, 0 }, |
| { 174, 0, 0 }, |
| { 174, 0, 0 } |
| }; |
| |
| /** |
| * im_falsecolour: |
| * @in: input image |
| * @out: output image |
| * |
| * Turn a 1-band 8-bit image into a 3-band 8-bit image with a false colour |
| * map. The map is supposed to make small differences in brightness more |
| * obvious. |
| * |
| * See also: im_maplut(). |
| * |
| * Returns: 0 on success, -1 on error |
| */ |
| int |
| im_falsecolour( IMAGE *in, IMAGE *out ) |
| { |
| IMAGE *lut; |
| |
| /* Check our args. |
| */ |
| if( im_piocheck( in, out ) || |
| im_check_mono( "im_falsecolour", in ) || |
| im_check_uncoded( "im_falsecolour", in ) || |
| im_check_format( "im_falsecolour", in, IM_BANDFMT_UCHAR ) ) |
| return( -1 ); |
| |
| if( !(lut = im_image( (PEL *) PET_colour, |
| 1, 256, 3, IM_BANDFMT_UCHAR )) ) |
| return( -1 ); |
| if( im_maplut( in, out, lut ) ) { |
| im_close( lut ); |
| return( -1 ); |
| } |
| |
| im_close( lut ); |
| |
| return( 0 ); |
| } |
