//  Upper half of this matrix gives correspondences that are available 
// between different images -- 1 means that correspondences exist
// This matrix is square with r/c equal to the number of images
4 4
0.0 1.0 1.0 1.0
0.0 0.0 0.0 0.0
0.0 0.0 0.0 0.0
0.0 0.0 0.0 0.0
// For the number of images specified above 0..N-1, each one 
// has a file name, given by a string
w0.ppm
w1.ppm
w2c.ppm
w3c.ppm
//  For each 1 entry in the correpondence matrix there is 
// control point, and it corresponds the the same point in the
// sister matrix
//
// This matrix is the set of points from image 3 that have corresponding 
// points in image 0
3 0 
// 11 correspondences with 2 coordinates each (it's a matrix)
6 2
264 105  
369  84 
257 252  
367 239  
152 141
146 242
// This matrix is the set of points from image 0 that have corresponding 
// points in image 3, it has a sister matrix given above (must be same size)
0 3 
6 2
134  10
231   8  
132 128 
231 127
12  20
11 110
// 0 to 1 correspondences
0 1 
13 2
434   6
451 136
540 125
550  21
542 222
563 270
454 216
355 244
402 295
535 216
563 267
565 282
566 306
// 1 to zero correspondences
1 0
13 2
81  72 
106 227
210 203
218  69
212 328
243 383
110 325
9 360
63 418
203 322
243 383
246 399
248 429
// 0 to 2 correspondences
0 2 
12 2
256 164
313 165
256 196
313 192
145 246
218 246
145 342
218 342
30 221
16 362
3 249
2 340
// 2 to 0 correspondences
2 0
12 2
428 107
489 109
425 142
488 141
302 195
382 197
296 299
376 300
174 163
155 317
140 192
139 293
// this gives the image domain into which the others should be mapped.
// I.e. the mosaic is from this point of view.
1
// This is the file name for the output.  Could be anything indicated 
// by this string
mosaic_out.tif