a92408ab |
1 | //use the camera to aid the decision to sleep. |
2 | //Copyright 2009 Daniel Watson |
ccb0e7df |
3 | /* |
4 | use a camera to prevent screensaver |
5 | Copyright (C) 2009 daniel watson, ozzloy@gmail.com |
6 | |
7 | This program is free software: you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by |
9 | the Free Software Foundation, either version 3 of the License, or |
10 | (at your option) any later version. |
11 | |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | GNU General Public License for more details. |
16 | |
17 | You should have received a copy of the GNU General Public License |
18 | along with this program. If not, see <http://www.gnu.org/licenses/>. |
19 | */ |
a92408ab |
20 | /* |
4d640880 |
21 | This file is part of oble. |
a92408ab |
22 | |
4d640880 |
23 | oble is free software: you can redistribute it and/or modify |
24 | it under the terms of the GNU General Public License as published by |
25 | the Free Software Foundation, either version 3 of the License, or |
26 | (at your option) any later version. |
a92408ab |
27 | |
4d640880 |
28 | oble is distributed in the hope that it will be useful, |
29 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
30 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
31 | GNU General Public License for more details. |
a92408ab |
32 | |
4d640880 |
33 | You should have received a copy of the GNU General Public License |
34 | along with oble. If not, see <http://www.gnu.org/licenses/>. |
a92408ab |
35 | |
4d640880 |
36 | */ |
b7e484d5 |
37 | #include <cv.h> |
38 | #include <highgui.h> |
39 | #include <stdio.h> |
4d640880 |
40 | #include <iostream> |
e0c48375 |
41 | #include <time.h> |
5a96bc78 |
42 | #include <unistd.h> |
124727d2 |
43 | #include "oble.h" |
4f219a9f |
44 | #include "idle_x11.h" |
b8b01547 |
45 | |
e0c48375 |
46 | using namespace std; |
b7e484d5 |
47 | |
5a96bc78 |
48 | static string cascade_filename = ""; |
49 | |
0d6b136c |
50 | // argument for cvFlip(src, dest, FLIP_TYPE) |
4d640880 |
51 | #define MIRROR 1 |
0d6b136c |
52 | |
4f219a9f |
53 | #define DEBUG 0 |
54 | |
64fb0216 |
55 | CvHaarClassifierCascade* load_object_detector(const char* cascade_path) |
b7e484d5 |
56 | { |
21323a92 |
57 | return (CvHaarClassifierCascade*)cvLoad(cascade_path); |
b7e484d5 |
58 | } |
59 | |
9cd4e78c |
60 | void detect_and_draw_objects(IplImage* image, |
b7e484d5 |
61 | CvHaarClassifierCascade* cascade, |
9cd4e78c |
62 | int do_pyramids) |
b7e484d5 |
63 | { |
64 | IplImage* small_image = image; |
65 | CvMemStorage* storage = cvCreateMemStorage(0); |
66 | CvSeq* faces; |
67 | int i, scale = 1; |
4f219a9f |
68 | static int saw_last_time = 0; |
b7e484d5 |
69 | |
70 | /* if the flag is specified, down-scale the input image to get a |
71 | performance boost w/o loosing quality (perhaps) */ |
21323a92 |
72 | if(do_pyramids) |
b7e484d5 |
73 | { |
21323a92 |
74 | small_image = cvCreateImage(cvSize(image->width/2,image->height/2), |
75 | IPL_DEPTH_8U, 3); |
76 | cvPyrDown(image, small_image, CV_GAUSSIAN_5x5); |
b7e484d5 |
77 | scale = 2; |
78 | } |
79 | |
80 | /* use the fastest variant */ |
21323a92 |
81 | faces = cvHaarDetectObjects(small_image, cascade, storage, 1.2, 2, |
82 | CV_HAAR_DO_CANNY_PRUNING); |
b7e484d5 |
83 | |
4d640880 |
84 | if(0 < faces->total) |
b8b01547 |
85 | { |
e0c48375 |
86 | t_current = time(NULL); |
4f219a9f |
87 | if(DEBUG) |
88 | { |
89 | printf(":) face \n"); |
90 | } |
91 | if(saw_last_time) |
92 | { |
93 | if(DEBUG)printf("\t\tpoking\n"); |
94 | reset_idle_time(); |
95 | system("gnome-screensaver-command --poke"); |
96 | } |
97 | saw_last_time = 1; |
98 | } |
99 | else |
100 | { |
101 | saw_last_time = 0; |
102 | if(DEBUG) |
103 | { |
104 | printf(":( no face \n"); |
105 | } |
b8b01547 |
106 | } |
b8b01547 |
107 | |
b7e484d5 |
108 | /* draw all the rectangles */ |
21323a92 |
109 | for(i = 0; i < faces->total; i++) |
b7e484d5 |
110 | { |
111 | /* extract the rectangles only */ |
21323a92 |
112 | CvRect face = *(CvRect*)cvGetSeqElem(faces, i); |
79292335 |
113 | CvPoint upperLeft = cvPoint(face.x * scale, face.y * scale); |
114 | CvPoint bottomRight = cvPoint((face.x + face.width) * scale, |
115 | (face.y + face.height) * scale); |
21323a92 |
116 | cvRectangle(image, upperLeft, bottomRight, CV_RGB(255,0,0), 3); |
b7e484d5 |
117 | } |
118 | |
21323a92 |
119 | if(small_image != image) |
120 | cvReleaseImage(&small_image); |
121 | cvReleaseMemStorage(&storage); |
b7e484d5 |
122 | } |
123 | |
e0c48375 |
124 | void screensave(time_t t_current) |
b7e484d5 |
125 | { |
e0c48375 |
126 | static int last_elapse = 0; |
127 | static int activated = 0; |
128 | int elapse = difftime(time(NULL), t_current); |
129 | int timeout = 10; |
130 | if(elapse > timeout && elapse != last_elapse) |
b8b01547 |
131 | { |
e0c48375 |
132 | last_elapse = elapse; |
4f219a9f |
133 | if(DEBUG) |
134 | { |
135 | printf("elapse = %d\n", elapse); |
136 | } |
e0c48375 |
137 | if(!activated) |
138 | { |
139 | printf("activated\n"); |
140 | activated = 1; |
141 | system("gnome-screensaver-command -a"); |
142 | } |
143 | } |
144 | if(elapse < timeout && activated) |
145 | { |
146 | printf("deactivated\n"); |
147 | activated = 0; |
148 | system("gnome-screensaver-command -d"); |
149 | } |
150 | } |
b8b01547 |
151 | |
5a96bc78 |
152 | int parse_opts(int argc, char **argv) |
153 | { |
154 | int index, c; |
155 | //int opterr=0, optopt=0, optind=0; |
156 | //char *optarg; |
157 | // int getopt(int argc, char **argv, const char *options); |
158 | opterr = 0; |
159 | const char *options = "c:"; |
160 | while((c = getopt(argc, argv, options)) != -1) |
161 | switch(c) |
162 | { |
163 | case 'c': |
164 | cascade_filename = string(optarg); |
165 | printf("option c, argument = %s\n", optarg); |
166 | case '?': |
167 | if(optopt == 'c') |
168 | printf("option -%c requires an argument.\n", optopt); |
169 | else if(isprint (optopt)) |
170 | printf("unknown option `-%c'.\n", optopt); |
171 | else |
172 | printf("unknown option char `\\x%x'.\n", optopt); |
173 | goto known_args_processed; |
174 | default: |
175 | abort(); |
176 | } |
177 | known_args_processed: |
178 | |
179 | for(index = optind; index < argc; index++) |
180 | printf("Non-option arg %s\n", argv[index]); |
181 | |
182 | return 0; |
183 | } |
184 | |
e0c48375 |
185 | // A Simple Camera Capture Framework. |
186 | int main(int argc, char** argv) |
187 | { |
5a96bc78 |
188 | if(parse_opts(argc, argv)) return 0; |
189 | |
190 | if(cascade_filename == "") cascade_filename = string(argv[1]); |
191 | CvHaarClassifierCascade* cascade = |
192 | load_object_detector(cascade_filename.c_str()); |
b7e484d5 |
193 | |
21323a92 |
194 | CvCapture* capture = cvCaptureFromCAM(CV_CAP_ANY); |
195 | if(!capture) { |
4d640880 |
196 | cerr << "ERROR: capture is NULL " << endl; |
b7e484d5 |
197 | getchar(); |
198 | return -1; |
199 | } |
200 | |
201 | // Create a window in which the captured images will be presented |
21323a92 |
202 | cvNamedWindow("mywindow", CV_WINDOW_AUTOSIZE); |
b7e484d5 |
203 | |
0d6b136c |
204 | IplImage* frame = cvQueryFrame(capture); |
205 | if(!frame) { |
4d640880 |
206 | cerr << "ERROR: frame is null..." << endl; |
0d6b136c |
207 | getchar(); |
208 | return -1; |
209 | } |
b8b01547 |
210 | IplImage* mirrored = |
0d6b136c |
211 | cvCreateImage(cvGetSize(frame), frame->depth, frame->nChannels); |
e0c48375 |
212 | t_current = time(NULL); |
b7e484d5 |
213 | // Show the image captured from the camera in the window and repeat |
21323a92 |
214 | while(1) { |
b7e484d5 |
215 | // Get one frame |
0d6b136c |
216 | frame = cvQueryFrame(capture); |
21323a92 |
217 | if(!frame) { |
4d640880 |
218 | cerr << "ERROR: frame is null..." << endl; |
b7e484d5 |
219 | getchar(); |
220 | break; |
221 | } |
222 | |
21323a92 |
223 | //flip the image so displayed right/left corresponds to physical right/left |
4d640880 |
224 | cvFlip(frame, mirrored, MIRROR); |
64fb0216 |
225 | |
b8b01547 |
226 | detect_and_draw_objects(mirrored, cascade, 1); |
227 | cvShowImage("mywindow", mirrored); |
b7e484d5 |
228 | // Do not release the frame! |
4f219a9f |
229 | //screensave(t_current); |
b7e484d5 |
230 | |
231 | //If ESC key pressed, Key=0x10001B under OpenCV 0.9.7(linux version), |
232 | //remove higher bits using AND operator |
e0c48375 |
233 | if((cvWaitKey(100) & 255) == 27) break; |
b7e484d5 |
234 | } |
235 | |
236 | // Release the capture device housekeeping |
21323a92 |
237 | cvReleaseCapture(&capture); |
238 | cvDestroyWindow("mywindow"); |
b8b01547 |
239 | cvReleaseImage(&mirrored); |
b7e484d5 |
240 | return 0; |
241 | } |