1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
|
//
// Lynkeos
// $Id: LynkeosStandardImageBuffer.h 589 2018-11-21 22:13:30Z j-etienne $
//
// Created by Jean-Etienne LAMIAUD on Fri Mar 07 2005.
// Copyright (c) 2005-2018. Jean-Etienne LAMIAUD
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU 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 General Public License for more details.
//
// You should have received a copy of the GNU 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.
/*!
* @header
* @abstract Definitions for the application image buffer class.
*/
#ifndef __LYNKEOSSTANDARDIMAGEBUFFER_H
#define __LYNKEOSSTANDARDIMAGEBUFFER_H
#import <Foundation/Foundation.h>
#include "LynkeosCore/LynkeosImageBuffer.h"
/*!
* @abstract Internal type used for arithmetic operators.
* @discussion Either an image or a scalar.
* @ingroup Processing
*/
typedef union
{
LynkeosStandardImageBuffer *term; //!< When operator acts on an image
float fscalar; //!< When operator acts on a single precision scalar
double dscalar; //!< When operator acts on a double precision scalar
} ArithmeticOperand_t;
/*!
* @abstract Internal method pointer to arithmetically process one line
*/
typedef void(*ImageProcessOneLine_t)(LynkeosStandardImageBuffer*,
ArithmeticOperand_t*,
LynkeosStandardImageBuffer*,
u_short);
/*!
* @abstract Class used for floating precision images.
* @discussion For optimization purposes, the methods for accessing pixels
* value are implemented as macros
* @ingroup Processing
*/
@interface LynkeosStandardImageBuffer : NSObject <LynkeosImageBuffer>
{
@public
u_short _nPlanes; ///< Number of color planes
u_short _w; ///< Image pixels width
u_short _h; ///< Image pixels width
u_short _padw; ///< Padded line width (>= width)
void *_data; ///< Pixel buffer, the planes are consecutive
@protected
REAL *_planes[3]; ///< Shortcuts to the color planes
BOOL _freeWhenDone; ///< Whether to free the planes on dealloc
double _min[4]; ///< The image minimum value
double _max[4]; ///< The image maximum value
//! Strategy method for multiplying a line, with vectorization, or not
ImageProcessOneLine_t _mul_one_image_line;
//! Strategy method for scaling a line, with vectorization, or not
ImageProcessOneLine_t _scale_one_image_line;
//! Strategy method for dividing a line, with vectorization, or not
ImageProcessOneLine_t _div_one_image_line;
//! Strategy method for substract and multiply, with vectorization, or not
ImageProcessOneLine_t _bias_scale_one_image_line;
//! Strategy method for processing an image, actually for debug
SEL _process_image_selector;
//! Strategy method for processing an image, func pointer which is called
void (*_process_image)(id,SEL,ArithmeticOperand_t*,
LynkeosStandardImageBuffer*res,
ImageProcessOneLine_t);
}
/*!
* @abstract Allocates a new empty buffer
* @param nPlanes Number of color planes for this image
* @param w Image pixels width
* @param h Image pixels height
* @result The initialized buffer.
*/
- (id) initWithNumberOfPlanes:(u_short)nPlanes
width:(u_short)w height:(u_short)h ;
/*!
* @abstract Initialize a new buffer with preexisting data
* @param data Image data
* @param copy Whether to copy the data
* @param freeWhenDone Whether to free the planes on dealloc (relevant only when
* copy is NO)
* @param nPlanes Number of color planes for this image
* @param w Image pixels width
* @param padw Padded width of the data
* @param h Image pixels height
* @result The initialized buffer.
*/
- (id) initWithData:(void*)data
copy:(BOOL)copy freeWhenDone:(BOOL)freeWhenDone
numberOfPlanes:(u_short)nPlanes
width:(u_short)w paddedWidth:(u_short)padw height:(u_short)h ;
/*!
* @abstract Change the strategy of arithmetic operators
* @discussion The images are always created with the standard strategy (no
* parallelization).
* @param strategy The new strategy
*/
- (void) setOperatorsStrategy:(ImageOperatorsStrategy_t)strategy ;
/*!
* @abstract Subclasses that use a different data format must return true
* @result Wether the image data is stored in a nonstandard format
*/
- (BOOL) hasCustomFormat;
/*!
* @abstract Reset the min and max to unset values
*/
- (void) resetMinMax ;
/*!
* @abstract Get the minimum and maximum pixels value
* @param[out] vmin Minimum pixel value
* @param[out] vmax Maximum pixel value
*/
- (void) getMinLevel:(double*)vmin maxLevel:(double*)vmax ;
/*!
* @abstract Get the minimum and maximum pixels value for a given plane
* @param[out] vmin Minimum pixel value
* @param[out] vmax Maximum pixel value
* @param plane he plane for which min and max will be returned
*/
- (void) getMinLevel:(double*)vmin maxLevel:(double*)vmax
forPlane:(u_short)plane;
/*!
* @abstract Access to the color planes
* @result An array of pointer to the color planes
*/
- (REAL * const * const) colorPlanes ;
/*!
* @abstract Access to one color component of a pixel
* @discussion This method is implemented as a macro for speed purpose
* @param buf An instance of LynkeosStandardImageBuffer
* @param x Pixel's x coordinate
* @param y Pixel's y coordinate
* @param c Color plane
* @result The access for this pixel (it can be used as an lvalue)
* @relates LynkeosStandardImageBuffer
* @ingroup Processing
*/
#define stdColorValue(buf,x,y,c) \
(((REAL*)(buf)->_data)[((y)+(c)*(buf)->_h)*(buf)->_padw+(x)])
/*!
* @abstract Extract a rectangle in the image
*/
- (void) extractSample:(REAL * const * const)planes
atX:(u_short)x Y:(u_short)y
withWidth:(u_short)w height:(u_short)h
withPlanes:(u_short)nPlanes
lineWidth:(u_short)lineW ;
/*!
* @abstract Substract an image from another
* @param image The other image to substract
*/
- (void) substract:(LynkeosStandardImageBuffer*)image ;
/*!
* @abstract Multiplication
* @discussion Term shall either have the same number of planes as the receiver
* or only one plane. In the latter case, the plane is applied to each planes
* of the receiver.
* @param term other term
* @param result where the result is stored, can be one of the terms.
*/
- (void) multiplyWith:(LynkeosStandardImageBuffer*)term
result:(LynkeosStandardImageBuffer*)result ;
/*!
* @abstract Substract and multiply with scalars
* @param bias The bias to substract
* @param scale The scalar by which all pixels are multiplied
*/
- (void) substractBias:(double)bias andScale:(double)scale;
/*!
* @abstract Multiplication with a scalar
* @param scalar The scalar by wich all pixels are multiplied
*/
- (void) multiplyWithScalar:(double)scalar ;
/*!
* @abstract Division
* @discussion term shall either have the same number of planes as the receiver
* or only one plane. In the latter case, the plane is applied to each planes
* of the receiver.
* @param denom Denominator of the division
* @param result where the result is stored, can be one of the terms
*/
- (void) divideBy:(LynkeosStandardImageBuffer*)denom
result:(LynkeosStandardImageBuffer*)result ;
/*!
* @abstract Convenience empty image buffer creator
* @param nPlanes Number of color planes for this image
* @param w Image pixels width
* @param h Image pixels height
* @result The allocated and initialized LynkeosStandardImageBuffer.
*/
+ (LynkeosStandardImageBuffer*) imageBufferWithNumberOfPlanes:(u_short)nPlanes
width:(u_short)w height:(u_short)h ;
/*!
* @abstract Convenience initialized image buffer creator
* @param data Image data
* @param copy Wether to copy the data
* @param freeWhenDone Whether to free the planes on dealloc (relevant only when
* copy is NO)
* @param nPlanes Number of color planes for this image
* @param w Image pixels width
* @param padw Padded width of the data
* @param h Image pixels height
* @result The allocated and initialized LynkeosStandardImageBuffer.
*/
+ (LynkeosStandardImageBuffer*) imageBufferWithData:(void*)data
copy:(BOOL)copy freeWhenDone:(BOOL)freeWhenDone
numberOfPlanes:(u_short)nPlanes
width:(u_short)w paddedWidth:(u_short)padw
height:(u_short)h ;
@end
#endif
|
