12 for d in ["../samples/c/", "../doc/pics/"]:
13 path = os.path.join(d, s)
14 if os.access(path, os.R_OK):
18 class FrameInterpolator:
19 def __init__(self, prev, curr):
21 w,h = cv.GetSize(prev)
23 self.offx = cv.CreateMat(h, w, cv.CV_32FC1)
24 self.offy = cv.CreateMat(h, w, cv.CV_32FC1)
30 self.maps = [ None, None ]
31 for i,a,b in [ (0, prev, curr), (1, curr, prev) ]:
32 velx = cv.CreateMat(h, w, cv.CV_32FC1)
33 vely = cv.CreateMat(h, w, cv.CV_32FC1)
34 cv.CalcOpticalFlowLK(a, b, (15,15), velx, vely)
37 cv.Smooth(velx, velx, param1 = 7)
38 cv.Smooth(vely, vely, param1 = 7)
39 self.maps[i] = (velx, vely)
41 def lerp(self, t, prev, curr):
43 w,h = cv.GetSize(prev)
45 x = cv.CreateMat(h, w, cv.CV_32FC1)
46 y = cv.CreateMat(h, w, cv.CV_32FC1)
47 d = cv.CloneImage(prev)
48 d0 = cv.CloneImage(prev)
49 d1 = cv.CloneImage(prev)
51 # d0 is curr mapped backwards in time, so 1.0 means exactly curr
52 velx,vely = self.maps[0]
53 cv.ConvertScale(velx, x, 1.0 - t)
54 cv.ConvertScale(vely, y, 1.0 - t)
55 cv.Add(x, self.offx, x)
56 cv.Add(y, self.offy, y)
57 cv.Remap(curr, d0, x, y)
59 # d1 is prev mapped forwards in time, so 0.0 means exactly prev
60 velx,vely = self.maps[1]
61 cv.ConvertScale(velx, x, t)
62 cv.ConvertScale(vely, y, t)
63 cv.Add(x, self.offx, x)
64 cv.Add(y, self.offy, y)
65 cv.Remap(prev, d1, x, y)
67 cv.AddWeighted(d0, t, d1, 1.0 - t, 0.0, d)
70 class TestDirected(unittest.TestCase):
72 depths = [ cv.IPL_DEPTH_8U, cv.IPL_DEPTH_8S, cv.IPL_DEPTH_16U, cv.IPL_DEPTH_16S, cv.IPL_DEPTH_32S, cv.IPL_DEPTH_32F, cv.IPL_DEPTH_64F ]
105 def depthsize(self, d):
106 return { cv.IPL_DEPTH_8U : 1,
108 cv.IPL_DEPTH_16U : 2,
109 cv.IPL_DEPTH_16S : 2,
110 cv.IPL_DEPTH_32S : 4,
111 cv.IPL_DEPTH_32F : 4,
112 cv.IPL_DEPTH_64F : 8 }[d]
114 def expect_exception(self, func, exception):
120 self.assert_(tripped)
122 def test_LoadImage(self):
123 self.expect_exception(lambda: cv.LoadImage(), TypeError)
124 self.expect_exception(lambda: cv.LoadImage(4), TypeError)
125 self.expect_exception(lambda: cv.LoadImage('foo.jpg', 1, 1), TypeError)
126 self.expect_exception(lambda: cv.LoadImage('foo.jpg', xiscolor=cv.CV_LOAD_IMAGE_COLOR), TypeError)
128 def test_CreateMat(self):
129 for rows in [2, 4, 16, 64, 512, 640]: # XXX - 1 causes bug in OpenCV
130 for cols in [1, 2, 4, 16, 64, 512, 640]:
131 for t in self.mat_types:
132 m = cv.CreateMat(rows, cols, t)
134 def test_CreateImage(self):
135 for w in [ 1, 4, 64, 512, 640]:
136 for h in [ 1, 4, 64, 480, 512]:
137 for c in [1, 2, 3, 4]:
138 for d in self.depths:
139 a = cv.CreateImage((w,h), d, c);
140 self.assert_(a.width == w)
141 self.assert_(a.height == h)
142 self.assert_(a.nChannels == c)
143 self.assert_(a.depth == d)
144 self.assert_(cv.GetSize(a) == (w, h))
145 # self.assert_(cv.GetElemType(a) == d)
147 def test_types(self):
148 self.assert_(type(cv.CreateImage((7,5), cv.IPL_DEPTH_8U, 1)) == cv.iplimage)
149 self.assert_(type(cv.CreateMat(5, 7, cv.CV_32FC1)) == cv.cvmat)
151 def test_GetSize(self):
152 self.assert_(cv.GetSize(cv.CreateMat(5, 7, cv.CV_32FC1)) == (7,5))
153 self.assert_(cv.GetSize(cv.CreateImage((7,5), cv.IPL_DEPTH_8U, 1)) == (7,5))
155 def test_GetAffineTransform(self):
156 mapping = cv.CreateMat(2, 3, cv.CV_32FC1)
157 cv.GetAffineTransform([ (0,0), (1,0), (0,1) ], [ (0,0), (17,0), (0,17) ], mapping)
158 self.assertAlmostEqual(mapping[0,0], 17, 2)
159 self.assertAlmostEqual(mapping[1,1], 17, 2)
161 def test_MinMaxLoc(self):
162 scribble = cv.CreateImage((640,480), cv.IPL_DEPTH_8U, 1)
163 los = [ (random.randrange(480), random.randrange(640)) for i in range(100) ]
164 his = [ (random.randrange(480), random.randrange(640)) for i in range(100) ]
165 for (lo,hi) in zip(los,his):
166 cv.Set(scribble, 128)
169 r = cv.MinMaxLoc(scribble)
170 self.assert_(r == (0, 255, tuple(reversed(lo)), tuple(reversed(hi))))
172 def failing_test_exception(self):
173 a = cv.CreateImage((640,480), cv.IPL_DEPTH_8U, 1)
174 b = cv.CreateImage((640,480), cv.IPL_DEPTH_8U, 1)
175 self.expect_exception(lambda: cv.Laplace(a, b), cv.error)
177 def test_tostring(self):
178 for w in [ 1, 4, 64, 512, 640]:
179 for h in [ 1, 4, 64, 480, 512]:
180 for c in [1, 2, 3, 4]:
181 for d in self.depths:
182 a = cv.CreateImage((w,h), d, c);
183 self.assert_(len(a.tostring()) == w * h * c * self.depthsize(d))
185 def test_cvmat_accessors(self):
186 cvm = cv.CreateMat(20, 10, cv.CV_32FC1)
188 def test_depths(self):
189 """ Make sure that the depth enums are unique """
190 self.assert_(len(self.depths) == len(set(self.depths)))
193 """ If CreateImage is not releasing image storage, then the loop below should use ~4GB of memory. """
194 for i in range(4000):
195 a = cv.CreateImage((1024,1024), cv.IPL_DEPTH_8U, 1)
198 m = cv.CreateMat(1, 8, cv.CV_32FC1)
199 for i,v in enumerate([2, 4, 4, 4, 5, 5, 7, 9]):
201 self.assertAlmostEqual(cv.Avg(m)[0], 5.0, 3)
202 avg,sdv = cv.AvgSdv(m)
203 self.assertAlmostEqual(avg[0], 5.0, 3)
204 self.assertAlmostEqual(sdv[0], 2.0, 3)
206 def test_histograms(self):
208 nchans = cv.CV_MAT_CN(cv.GetElemType(im))
209 c = [ cv.CreateImage(cv.GetSize(im), cv.IPL_DEPTH_8U, 1) for i in range(nchans) ] + [None] * (4 - nchans)
210 cv.Split(im, c[0], c[1], c[2], c[3])
214 hist = cv.CreateHist([256] * len(s), cv.CV_HIST_ARRAY, [ (0,255) ] * len(s), 1)
215 cv.CalcHist(s, hist, 0)
218 src = cv.LoadImage(find_sample("lena.jpg"), 0)
220 (minv, maxv, minl, maxl) = cv.GetMinMaxHistValue(h)
221 self.assert_(cv.QueryHistValue_nD(h, minl) == minv)
222 self.assert_(cv.QueryHistValue_nD(h, maxl) == maxv)
223 bp = cv.CreateImage(cv.GetSize(src), cv.IPL_DEPTH_8U, 1)
224 cv.CalcBackProject(split(src), bp, h)
225 bp = cv.CreateImage((cv.GetSize(src)[0]-2, cv.GetSize(src)[1]-2), cv.IPL_DEPTH_32F, 1)
226 cv.CalcBackProjectPatch(split(src), bp, (3,3), h, cv.CV_COMP_INTERSECT, 1)
228 def test_remap(self):
230 raw = cv.CreateImage((640, 480), cv.IPL_DEPTH_8U, 1)
231 for x in range(0, 640, 20):
232 cv.Line(raw, (x,0), (x,480), 255, 1)
233 for y in range(0, 480, 20):
234 cv.Line(raw, (0,y), (640,y), 255, 1)
235 intrinsic_mat = cv.CreateMat(3, 3, cv.CV_32FC1);
236 distortion_coeffs = cv.CreateMat(1, 4, cv.CV_32FC1);
238 cv.SetZero(intrinsic_mat)
239 intrinsic_mat[0,2] = 320.0
240 intrinsic_mat[1,2] = 240.0
241 intrinsic_mat[0,0] = 320.0
242 intrinsic_mat[1,1] = 320.0
243 intrinsic_mat[2,2] = 1.0
244 cv.SetZero(distortion_coeffs)
245 distortion_coeffs[0,0] = 1e-1
246 mapx = cv.CreateImage((640, 480), cv.IPL_DEPTH_32F, 1)
247 mapy = cv.CreateImage((640, 480), cv.IPL_DEPTH_32F, 1)
250 cv.InitUndistortMap(intrinsic_mat, distortion_coeffs, mapx, mapy)
251 rect = cv.CreateImage((640, 480), cv.IPL_DEPTH_8U, 1)
254 rMapxy = cv.CreateMat(h, w, cv.CV_16SC2)
255 rMapa = cv.CreateMat(h, w, cv.CV_16UC1)
256 cv.ConvertMaps(mapx,mapy,rMapxy,rMapa);
258 cv.Remap(raw, rect, mapx, mapy)
259 cv.Remap(raw, rect, rMapxy, rMapa)
260 cv.Undistort2(raw, rect, intrinsic_mat, distortion_coeffs)
262 for w in [1, 4, 4095, 4096, 4097, 4100]:
263 p = cv.CreateImage((w,256), 8, 1)
264 cv.Undistort2(p, p, intrinsic_mat, distortion_coeffs);
267 fptypes = [cv.CV_32FC1, cv.CV_64FC1]
272 rotation_vector = cv.CreateMat(1, 3, t0)
273 translation_vector = cv.CreateMat(1, 3, t1)
274 object_points = cv.CreateMat(7, 3, t2)
275 image_points = cv.CreateMat(7, 2, t3)
276 cv.ProjectPoints2(object_points, rotation_vector, translation_vector, intrinsic_mat, distortion_coeffs, image_points)
280 started = time.time()
283 cv.Remap(raw, rect, mapx, mapy)
285 cv.Remap(raw,rect,rMapxy,rMapa)
286 print "took", time.time() - started
289 print "mapx", mapx[0,0]
290 print "mapy", mapx[0,0]
293 def test_arithmetic(self):
294 a = cv.CreateMat(4, 4, cv.CV_8UC1)
296 b = cv.CreateMat(4, 4, cv.CV_8UC1)
298 d = cv.CreateMat(4, 4, cv.CV_8UC1)
300 self.assertEqual(d[0,0], 54.0)
302 self.assertEqual(d[0,0], 200.0)
304 def test_inrange(self):
307 Igray1 = cv.CreateImage(sz,cv.IPL_DEPTH_32F,1)
308 Ilow1 = cv.CreateImage(sz,cv.IPL_DEPTH_32F,1)
309 Ihi1 = cv.CreateImage(sz,cv.IPL_DEPTH_32F,1)
310 Igray2 = cv.CreateImage(sz,cv.IPL_DEPTH_32F,1)
311 Ilow2 = cv.CreateImage(sz,cv.IPL_DEPTH_32F,1)
312 Ihi2 = cv.CreateImage(sz,cv.IPL_DEPTH_32F,1)
314 Imask = cv.CreateImage(sz, cv.IPL_DEPTH_8U,1)
315 Imaskt = cv.CreateImage(sz,cv.IPL_DEPTH_8U,1)
317 cv.InRange(Igray1, Ilow1, Ihi1, Imask);
318 cv.InRange(Igray2, Ilow2, Ihi2, Imaskt);
320 cv.Or(Imask, Imaskt, Imask);
322 def failing_test_cvtcolor(self):
323 src3 = cv.LoadImage(find_sample("lena.jpg"))
324 src1 = cv.LoadImage(find_sample("lena.jpg"), 0)
325 dst8u = dict([(c,cv.CreateImage(cv.GetSize(src1), cv.IPL_DEPTH_8U, c)) for c in (1,2,3,4)])
326 dst16u = dict([(c,cv.CreateImage(cv.GetSize(src1), cv.IPL_DEPTH_16U, c)) for c in (1,2,3,4)])
327 dst32f = dict([(c,cv.CreateImage(cv.GetSize(src1), cv.IPL_DEPTH_32F, c)) for c in (1,2,3,4)])
329 for srcf in ["BGR", "RGB"]:
331 cv.CvtColor(src3, dst8u[3], eval("cv.CV_%s2%s" % (srcf, dstf)))
332 cv.CvtColor(src3, dst32f[3], eval("cv.CV_%s2%s" % (srcf, dstf)))
333 cv.CvtColor(src3, dst8u[3], eval("cv.CV_%s2%s" % (dstf, srcf)))
335 for srcf in ["BayerBG", "BayerGB", "BayerGR"]:
336 for dstf in ["RGB", "BGR"]:
337 cv.CvtColor(src1, dst8u[3], eval("cv.CV_%s2%s" % (srcf, dstf)))
339 def test_voronoi(self):
342 storage = cv.CreateMemStorage(0)
347 e = cv.Subdiv2DGetEdge(e, cv.CV_NEXT_AROUND_LEFT)
356 pts = [ cv.Subdiv2DEdgeOrg(e) for e in facet_edges(edge) ]
357 if not (None in pts):
358 l = [p.pt for p in pts]
360 if not(ls in seensorted):
362 seensorted.append(ls)
365 for npoints in range(1, 200):
366 points = [ (random.randrange(w), random.randrange(h)) for i in range(npoints) ]
367 subdiv = cv.CreateSubdivDelaunay2D( (0,0,w,h), storage )
369 cv.SubdivDelaunay2DInsert( subdiv, p)
370 cv.CalcSubdivVoronoi2D(subdiv)
371 ars = areas([ cv.Subdiv2DRotateEdge(e, 1) for e in subdiv.edges ] + [ cv.Subdiv2DRotateEdge(e, 3) for e in subdiv.edges ])
372 self.assert_(len(ars) == len(set(points)))
375 img = cv.CreateImage((w,h), cv.IPL_DEPTH_8U, 3)
377 def T(x): return int(x) # int(300+x/16)
379 cv.FillConvexPoly( img, [(T(x),T(y)) for (x,y) in pts], cv.RGB(100+random.randrange(156),random.randrange(256),random.randrange(256)), cv.CV_AA, 0 );
381 cv.Circle(img, (T(x), T(y)), 3, cv.RGB(0,0,0), -1)
383 cv.ShowImage("snap", img)
384 if cv.WaitKey(10) > 0:
387 def test_lineclip(self):
389 img = cv.CreateImage((w,h), cv.IPL_DEPTH_8U, 1)
391 tricky = [ -8000, -2, -1, 0, 1, h/2, h-1, h, h+1, w/2, w-1, w, w+1, 8000]
396 for thickness in [ 0, 1, 8 ]:
397 for line_type in [0, 4, 8, cv.CV_AA ]:
398 cv.Line(img, (x0,y0), (x1,y1), 255, thickness, line_type)
399 # just check that something was drawn
400 self.assert_(cv.Sum(img)[0] > 0)
402 def test_inpaint(self):
403 src = cv.LoadImage(find_sample("building.jpg"))
404 msk = cv.CreateImage(cv.GetSize(src), cv.IPL_DEPTH_8U, 1)
405 damaged = cv.CloneImage(src)
406 repaired = cv.CreateImage(cv.GetSize(src), cv.IPL_DEPTH_8U, 3)
407 difference = cv.CloneImage(repaired)
409 for method in [ cv.CV_INPAINT_NS, cv.CV_INPAINT_TELEA ]:
410 for (p0,p1) in [ ((10,10), (400,400)) ]:
411 cv.Line(damaged, p0, p1, cv.RGB(255, 0, 255), 2)
412 cv.Line(msk, p0, p1, 255, 2)
413 cv.Inpaint(damaged, msk, repaired, 10., cv.CV_INPAINT_NS)
414 cv.AbsDiff(src, repaired, difference)
415 #self.snapL([src, damaged, repaired, difference])
417 def test_GetSubRect(self):
418 src = cv.CreateImage((100,100), 8, 1)
419 data = "z" * (100 * 100)
421 cv.SetData(src, data, 100)
422 start_count = sys.getrefcount(data)
426 for i in range(iter):
427 sub = cv.GetSubRect(src, (0, 0, 10, 10))
429 self.assert_(sys.getrefcount(data) == (start_count + iter))
431 src = cv.LoadImage(find_sample("lena.jpg"), 0)
432 made = cv.CreateImage(cv.GetSize(src), 8, 1)
433 sub = cv.CreateMat(32, 32, cv.CV_8UC1)
434 for x in range(0, 512, 32):
435 for y in range(0, 512, 32):
436 sub = cv.GetSubRect(src, (x, y, 32, 32))
437 cv.SetImageROI(made, (x, y, 32, 32))
439 cv.ResetImageROI(made)
440 cv.AbsDiff(made, src, made)
441 self.assert_(cv.CountNonZero(made) == 0)
443 def perf_test_pow(self):
444 mt = cv.CreateMat(1000, 1000, cv.CV_32FC1)
445 dst = cv.CreateMat(1000, 1000, cv.CV_32FC1)
447 cv.RandArr(rng, mt, cv.CV_RAND_UNI, 0, 1000.0)
450 for a in [0.5, 2.0, 2.3, 2.4, 3.0, 37.1786] + [2.4]*10:
451 started = time.time()
454 took = (time.time() - started) / 1e7
455 print "%4.1f took %f ns" % (a, took * 1e9)
456 print dst[0,0], 10 ** 2.4
458 def test_GetRowCol(self):
459 src = cv.CreateImage((8,3), 8, 1)
464 # in an array (3 rows, 8 columns).
465 # Then extract the array in various ways.
467 for r,w in enumerate(("Achilles", "Benedict", "Congreve")):
468 for c,v in enumerate(w):
470 self.assertEqual(src.tostring(), "AchillesBenedictCongreve")
471 self.assertEqual(src[:,:].tostring(), "AchillesBenedictCongreve")
472 self.assertEqual(src[:,:4].tostring(), "AchiBeneCong")
473 self.assertEqual(src[:,0].tostring(), "ABC")
474 self.assertEqual(src[:,4:].tostring(), "llesdictreve")
475 self.assertEqual(src[::2,:].tostring(), "AchillesCongreve")
476 self.assertEqual(src[1:,:].tostring(), "BenedictCongreve")
477 self.assertEqual(src[1:2,:].tostring(), "Benedict")
478 self.assertEqual(src[::2,:4].tostring(), "AchiCong")
479 # The mats share the same storage, so updating one should update them all
481 self.assertEqual(lastword.tostring(), "Congreve")
483 self.assertEqual(lastword.tostring(), "Kongreve")
493 mt = cv.CreateMatND([2,3,4], cv.CV_8UC1)
497 mt[i,j,k] = ord('A') + k + 4 * (j + 3 * i)
498 self.assertEqual(mt[:,:,:1].tostring(), "AEIMQU")
499 self.assertEqual(mt[:,:1,:].tostring(), "ABCDMNOP")
500 self.assertEqual(mt[:1,:,:].tostring(), "ABCDEFGHIJKL")
501 self.assertEqual(mt[1,1].tostring(), "QRST")
502 self.assertEqual(mt[:,::2,:].tostring(), "ABCDIJKLMNOPUVWX")
504 def test_addS_3D(self):
505 for dim in [ [1,1,4], [2,2,3], [7,4,3] ]:
506 for ty,ac in [ (cv.CV_32FC1, 'f'), (cv.CV_64FC1, 'd')]:
507 mat = cv.CreateMatND(dim, ty)
508 mat2 = cv.CreateMatND(dim, ty)
509 for increment in [ 0, 3, -1 ]:
510 cv.SetData(mat, array.array(ac, range(dim[0] * dim[1] * dim[2])), 0)
511 cv.AddS(mat, increment, mat2)
512 for i in range(dim[0]):
513 for j in range(dim[1]):
514 for k in range(dim[2]):
515 self.assert_(mat2[i,j,k] == mat[i,j,k] + increment)
517 def test_Buffers(self):
518 ar = array.array('f', [7] * (360*640))
520 m = cv.CreateMat(360, 640, cv.CV_32FC1)
521 cv.SetData(m, ar, 4 * 640)
522 self.assert_(m[0,0] == 7.0)
524 m = cv.CreateMatND((360, 640), cv.CV_32FC1)
525 cv.SetData(m, ar, 4 * 640)
526 self.assert_(m[0,0] == 7.0)
528 m = cv.CreateImage((640, 360), cv.IPL_DEPTH_32F, 1)
529 cv.SetData(m, ar, 4 * 640)
530 self.assert_(m[0,0] == 7.0)
532 def xxtest_Filters(self):
534 m = cv.CreateMat(360, 640, cv.CV_32FC1)
535 d = cv.CreateMat(360, 640, cv.CV_32FC1)
536 for k in range(3, 21, 2):
537 started = time.time()
538 for i in range(1000):
539 cv.Smooth(m, m, param1=k)
540 print k, "took", time.time() - started
542 def assertSame(self, a, b):
544 d = cv.CreateMat(h, w, cv.CV_8UC1)
546 self.assert_(cv.CountNonZero(d) == 0)
548 def test_GetStarKeypoints(self):
549 src = cv.LoadImage(find_sample("lena.jpg"), 0)
550 storage = cv.CreateMemStorage()
551 kp = cv.GetStarKeypoints(src, storage)
552 self.assert_(len(kp) > 0)
553 for (x,y),scale,r in kp:
555 self.assert_(x <= cv.GetSize(src)[0])
557 self.assert_(y <= cv.GetSize(src)[1])
559 scribble = cv.CreateImage(cv.GetSize(src), 8, 3)
560 cv.CvtColor(src, scribble, cv.CV_GRAY2BGR)
561 for (x,y),scale,r in kp:
563 cv.Circle(scribble, (x,y), scale, cv.RGB(255,0,0))
566 def test_Threshold(self):
567 """ directed test for bug 2790622 """
568 src = cv.LoadImage(find_sample("lena.jpg"), 0)
571 dst = cv.CreateImage(cv.GetSize(src), cv.IPL_DEPTH_8U, 1)
572 cv.Threshold(src, dst, 128, 128, cv.CV_THRESH_BINARY)
573 results.add(dst.tostring())
574 # Should have produced the same answer every time, so results set should have size 1
575 self.assert_(len(results) == 1)
577 def failing_test_Circle(self):
578 """ smoke test to draw circles, many clipped """
579 for w,h in [(2,77), (77,2), (256, 256), (640,480)]:
580 img = cv.CreateImage((w,h), cv.IPL_DEPTH_8U, 1)
582 tricky = [ -8000, -2, -1, 0, 1, h/2, h-1, h, h+1, w/2, w-1, w, w+1, 8000]
585 for r in [ 0, 1, 2, 3, 4, 5, w/2, w-1, w, w+1, h/2, h-1, h, h+1, 8000 ]:
586 for thick in [1, 2, 10]:
587 for t in [0, 8, 4, cv.CV_AA]:
588 cv.Circle(img, (x0,y0), r, 255, thick, t)
589 # just check that something was drawn
590 self.assert_(cv.Sum(img)[0] > 0)
593 img = cv.CreateImage((640,40), cv.IPL_DEPTH_8U, 1)
595 font = cv.InitFont(cv.CV_FONT_HERSHEY_SIMPLEX, 1, 1)
597 cv.PutText(img, message, (320,30), font, 255)
598 ((w,h),bl) = cv.GetTextSize(message, font)
600 # Find nonzero in X and Y
603 cv.SetImageROI(img, (x, 0, 1, 40))
604 Xs.append(cv.Sum(img)[0] > 0)
606 return (l.index(True), len(l) - list(reversed(l)).index(True))
610 cv.SetImageROI(img, (0, y, 640, 1))
611 Ys.append(cv.Sum(img)[0] > 0)
613 x0,x1 = firstlast(Xs)
614 y0,y1 = firstlast(Ys)
615 actual_width = x1 - x0
616 actual_height = y1 - y0
618 # actual_width can be up to 8 pixels smaller than GetTextSize says
619 self.assert_(actual_width <= w)
620 self.assert_((w - actual_width) <= 8)
622 # actual_height can be up to 4 pixels smaller than GetTextSize says
623 self.assert_(actual_height <= (h + bl))
624 self.assert_(((h + bl) - actual_height) <= 4)
626 cv.ResetImageROI(img)
630 def test_sizes(self):
631 sizes = [ 1, 2, 3, 97, 255, 256, 257, 947 ]
635 im = cv.CreateImage((w,h), cv.IPL_DEPTH_8U, 1)
637 self.assert_(cv.Sum(im)[0] == (w * h))
640 mt = cv.CreateMat(h, w, cv.CV_8UC1)
642 self.assert_(cv.Sum(mt)[0] == (w * h))
645 for dim in range(1, cv.CV_MAX_DIM + 1):
646 for attempt in range(10):
647 dims = [ random.choice([1,1,1,1,2,3]) for i in range(dim) ]
648 mt = cv.CreateMatND(dims, cv.CV_8UC1)
650 self.assert_(cv.Sum(mt)[0] == 0)
651 # Set to all-ones, verify the sum
656 self.assert_(cv.Sum(mt)[0] == expected)
658 def test_random(self):
659 seeds = [ 0, 1, 2**48, 2**48 + 1 ]
663 sequences.add(str([cv.RandInt(rng) for i in range(10)]))
664 self.assert_(len(seeds) == len(sequences))
667 im = cv.CreateImage((1024,1024), cv.IPL_DEPTH_8U, 1)
668 cv.RandArr(rng, im, cv.CV_RAND_UNI, 0, 256)
669 cv.RandArr(rng, im, cv.CV_RAND_NORMAL, 128, 30)
671 hist = cv.CreateHist([ 256 ], cv.CV_HIST_ARRAY, [ (0,255) ], 1)
672 cv.CalcHist([im], hist)
675 for i in range(1000):
680 for mode in [ cv.CV_RAND_UNI, cv.CV_RAND_NORMAL ]:
681 for fmt in self.mat_types:
682 mat = cv.CreateMat(64, 64, fmt)
683 cv.RandArr(cv.RNG(), mat, mode, (0,0,0,0), (1,1,1,1))
685 def failing_test_mixchannels(self):
686 rgba = cv.CreateMat(100, 100, cv.CV_8UC4)
687 bgr = cv.CreateMat(100, 100, cv.CV_8UC3)
688 alpha = cv.CreateMat(100, 100, cv.CV_8UC1)
689 cv.Set(rgba, (1,2,3,4))
690 cv.MixChannels([rgba,rgba,rgba,rgba], [bgr, bgr, bgr, alpha], [
691 (0, 2), # rgba[0] -> bgr[2]
692 (1, 1), # rgba[1] -> bgr[1]
693 (2, 0), # rgba[2] -> bgr[0]
694 (3, 0) # rgba[3] -> alpha[0]
696 self.assert_(bgr[0,0] == (3,2,1))
697 self.assert_(alpha[0,0] == 4)
699 cv.MixChannels([rgba,rgba,rgba,None], [bgr, bgr, bgr, alpha], [
700 (0, 0), # rgba[0] -> bgr[0]
701 (1, 1), # rgba[1] -> bgr[1]
702 (2, 2), # rgba[2] -> bgr[2]
703 (77, 0) # 0 -> alpha[0]
705 self.assert_(bgr[0,0] == (1,2,3))
706 self.assert_(alpha[0,0] == 0)
708 def test_access(self):
709 cnames = { 1:cv.CV_32FC1, 2:cv.CV_32FC2, 3:cv.CV_32FC3, 4:cv.CV_32FC4 }
711 for w in range(1,11):
712 for h in range(2,11):
714 for o in [ cv.CreateMat(h, w, cnames[c]), cv.CreateImage((w,h), cv.IPL_DEPTH_32F, c) ][1:]:
715 pattern = [ (i,j) for i in range(w) for j in range(h) ]
716 random.shuffle(pattern)
717 for k,(i,j) in enumerate(pattern):
722 for k,(i,j) in enumerate(pattern):
724 self.assert_(o[j,i] == k)
726 self.assert_(o[j,i] == (k,)*c)
728 test_mat = cv.CreateMat(2, 3, cv.CV_32FC1)
729 cv.SetData(test_mat, array.array('f', range(6)), 12)
730 self.assertEqual(cv.GetDims(test_mat[0]), (1, 3))
731 self.assertEqual(cv.GetDims(test_mat[1]), (1, 3))
732 self.assertEqual(cv.GetDims(test_mat[0:1]), (1, 3))
733 self.assertEqual(cv.GetDims(test_mat[1:2]), (1, 3))
734 self.assertEqual(cv.GetDims(test_mat[-1:]), (1, 3))
735 self.assertEqual(cv.GetDims(test_mat[-1]), (1, 3))
737 def test_InitLineIterator(self):
738 scribble = cv.CreateImage((640,480), cv.IPL_DEPTH_8U, 1)
739 self.assert_(len(list(cv.InitLineIterator(scribble, (20,10), (30,10)))) == 11)
741 def test_CalcEMD2(self):
743 for r in [ 5, 10, 37, 38 ]:
744 scratch = cv.CreateImage((100,100), 8, 1)
746 cv.Circle(scratch, (50,50), r, 255, -1)
747 storage = cv.CreateMemStorage()
748 seq = cv.FindContours(scratch, storage, cv.CV_RETR_TREE, cv.CV_CHAIN_APPROX_SIMPLE)
749 arr = cv.CreateMat(len(seq), 3, cv.CV_32FC1)
750 for i,e in enumerate(seq):
756 return abs(A[0]-B[0]) + abs(A[1]-B[1])
758 return math.sqrt((A[0]-B[0])**2 + (A[1]-B[1])**2)
760 return max(abs(A[0]-B[0]), abs(A[1]-B[1]))
761 contours = set(cc.values())
764 self.assert_(abs(cv.CalcEMD2(c0, c1, cv.CV_DIST_L1) - cv.CalcEMD2(c0, c1, cv.CV_DIST_USER, myL1)) < 1e-3)
765 self.assert_(abs(cv.CalcEMD2(c0, c1, cv.CV_DIST_L2) - cv.CalcEMD2(c0, c1, cv.CV_DIST_USER, myL2)) < 1e-3)
766 self.assert_(abs(cv.CalcEMD2(c0, c1, cv.CV_DIST_C) - cv.CalcEMD2(c0, c1, cv.CV_DIST_USER, myC)) < 1e-3)
768 def test_FindContours(self):
771 storage = cv.CreateMemStorage()
772 for trial in range(10):
773 scratch = cv.CreateImage((800,800), 8, 1)
775 def plot(center, radius, mode):
776 cv.Circle(scratch, center, radius, mode, -1)
781 subs = random.choice([1,2,3])
783 return [ plot(center, radius - 5, newmode) ]
785 newradius = int({ 2: radius / 2, 3: radius / 2.3 }[subs] - 5)
788 for i in range(subs):
789 th = i * (2 * math.pi) / subs
790 ret.append(plot((int(center[0] + r * math.cos(th)), int(center[1] + r * math.sin(th))), newradius, newmode))
793 actual = plot((400,400), 390, 255 )
795 seq = cv.FindContours(scratch, storage, cv.CV_RETR_TREE, cv.CV_CHAIN_APPROX_SIMPLE)
801 self.assert_(abs(cv.ContourArea(s)) > 0.0)
802 ((x,y),(w,h),th) = cv.MinAreaRect2(s, cv.CreateMemStorage())
803 self.assert_(((w / h) - 1.0) < 0.01)
804 self.assert_(abs(cv.ContourArea(s)) > 0.0)
807 r.append(traverse(s.v_next()))
810 self.assert_(traverse(seq.v_next()) == actual)
812 def test_ConvexHull2(self):
813 # Draw a series of N-pointed stars, find contours, assert the contour is not convex,
814 # assert the hull has N segments, assert that there are N convexity defects.
817 return (int(400 + r * math.cos(th)), int(400 + r * math.sin(th)))
818 storage = cv.CreateMemStorage(0)
819 for way in ['CvSeq', 'CvMat', 'list']:
820 for points in range(3,20):
821 scratch = cv.CreateImage((800,800), 8, 1)
823 cv.FillPoly(scratch, [ [ polar2xy(i * 2 * math.pi / sides, [100,350][i&1]) for i in range(sides) ] ], 255)
825 seq = cv.FindContours(scratch, storage, cv.CV_RETR_TREE, cv.CV_CHAIN_APPROX_SIMPLE)
832 arr = cv.CreateMat(len(seq), 1, cv.CV_32SC2)
833 for i,e in enumerate(seq):
837 # pts is a list of 2-tuples
842 self.assert_(cv.CheckContourConvexity(pts) == 0)
843 hull = cv.ConvexHull2(pts, storage, return_points = 1)
844 self.assert_(cv.CheckContourConvexity(hull) == 1)
845 self.assert_(len(hull) == points)
847 if way in [ 'CvSeq', 'CvMat' ]:
848 defects = cv.ConvexityDefects(pts, cv.ConvexHull2(pts, storage), storage)
849 self.assert_(len([depth for (_,_,_,depth) in defects if (depth > 5)]) == points)
851 def xxxtest_corners(self):
852 a = cv.LoadImage("foo-mono.png", 0)
853 cv.AdaptiveThreshold(a, a, 255, param1=5)
854 scribble = cv.CreateImage(cv.GetSize(a), 8, 3)
855 cv.CvtColor(a, scribble, cv.CV_GRAY2BGR)
857 eig_image = cv.CreateImage(cv.GetSize(a), cv.IPL_DEPTH_32F, 1)
858 temp_image = cv.CreateImage(cv.GetSize(a), cv.IPL_DEPTH_32F, 1)
859 pts = cv.GoodFeaturesToTrack(a, eig_image, temp_image, 100, 0.04, 2, use_harris=1)
861 cv.Circle( scribble, p, 1, cv.RGB(255,0,0), -1 )
863 canny = cv.CreateImage(cv.GetSize(a), 8, 1)
864 cv.SubRS(a, 255, canny)
866 li = cv.HoughLines2(canny,
867 cv.CreateMemStorage(),
868 cv.CV_HOUGH_STANDARD,
874 for (rho,theta) in li:
881 (x0 + 1000*(-s), y0 + 1000*c),
882 (x0 + -1000*(-s), y0 - 1000*c),
886 def test_CalcOpticalFlowBM(self):
887 a = cv.LoadImage(find_sample("lena.jpg"), 0)
888 b = cv.LoadImage(find_sample("lena.jpg"), 0)
889 (w,h) = cv.GetSize(a)
890 vel_size = (w - 8, h - 8)
891 velx = cv.CreateImage(vel_size, cv.IPL_DEPTH_32F, 1)
892 vely = cv.CreateImage(vel_size, cv.IPL_DEPTH_32F, 1)
893 cv.CalcOpticalFlowBM(a, b, (8,8), (1,1), (8,8), 0, velx, vely)
895 def test_tostring(self):
896 for w in [ 32, 96, 480 ]:
897 for h in [ 32, 96, 480 ]:
901 cv.IPL_DEPTH_16U : 2,
902 cv.IPL_DEPTH_16S : 2,
903 cv.IPL_DEPTH_32S : 4,
904 cv.IPL_DEPTH_32F : 4,
907 for f in self.depths:
908 for channels in (1,2,3,4):
909 img = cv.CreateImage((w, h), f, channels)
910 esize = (w * h * channels * depth_size[f])
911 self.assert_(len(img.tostring()) == esize)
912 cv.SetData(img, " " * esize, w * channels * depth_size[f])
913 self.assert_(len(img.tostring()) == esize)
946 for t in self.mat_types:
947 im = cv.CreateMat(h, w, t)
948 elemsize = cv.CV_MAT_CN(cv.GetElemType(im)) * mattype_size[cv.GetElemType(im)]
949 cv.SetData(im, " " * (w * h * elemsize), (w * elemsize))
950 esize = (w * h * elemsize)
951 self.assert_(len(im.tostring()) == esize)
952 cv.SetData(im, " " * esize, w * elemsize)
953 self.assert_(len(im.tostring()) == esize)
955 def xxx_test_Disparity(self):
957 for t in ["8U", "8S", "16U", "16S", "32S", "32F", "64F" ]:
959 nm = "%sC%d" % (t, c)
960 print "int32 CV_%s=%d" % (nm, eval("cv.CV_%s" % nm))
962 integral = cv.CreateImage((641,481), cv.IPL_DEPTH_32S, 1)
963 L = cv.LoadImage("f0-left.png", 0)
964 R = cv.LoadImage("f0-right.png", 0)
965 d = cv.CreateImage(cv.GetSize(L), cv.IPL_DEPTH_8U, 1)
966 Rn = cv.CreateImage(cv.GetSize(L), cv.IPL_DEPTH_8U, 1)
967 started = time.time()
970 cv.Integral(d, integral)
971 cv.SetImageROI(R, (1, 1, 639, 479))
972 cv.SetImageROI(Rn, (0, 0, 639, 479))
976 print 1e3 * (time.time() - started) / 100, "ms"
979 def local_test_lk(self):
980 seq = [cv.LoadImage("track/%06d.png" % i, 0) for i in range(40)]
981 crit = (cv.CV_TERMCRIT_ITER, 100, 0.1)
982 crit = (cv.CV_TERMCRIT_EPS, 0, 0.001)
984 for i in range(1,40):
985 r = cv.CalcOpticalFlowPyrLK(seq[0], seq[i], None, None, [(32,32)], (7,7), 0, crit, 0)
989 a = cv.CreateImage((1024,1024), 8, 1)
990 b = cv.CreateImage((1024,1024), 8, 1)
991 cv.Resize(seq[0], a, cv.CV_INTER_NN)
992 cv.Resize(seq[i], b, cv.CV_INTER_NN)
993 cv.Line(a, (0, 512), (1024, 512), 255)
994 cv.Line(a, (512,0), (512,1024), 255)
995 x,y = [int(c) for c in pos]
996 cv.Line(b, (0, y*16), (1024, y*16), 255)
997 cv.Line(b, (x*16,0), (x*16,1024), 255)
1000 def xxx_test_CalcOpticalFlowBM(self):
1001 a = cv.LoadImage("ab/0.tiff", 0)
1004 # create b, just a shifted 2 pixels in X
1005 b = cv.CreateImage(cv.GetSize(a), 8, 1)
1006 m = cv.CreateMat(2, 3, cv.CV_32FC1)
1011 cv.WarpAffine(a, b, m)
1013 b = cv.LoadImage("ab/1.tiff", 0)
1019 o0 = cv.LoadImage("again3_2245/%06d.tiff" % i, 1)
1020 o1 = cv.LoadImage("again3_2245/%06d.tiff" % (i+1), 1)
1021 a = cv.CreateImage((640,360), 8, 3)
1022 b = cv.CreateImage((640,360), 8, 3)
1025 am = cv.CreateImage(cv.GetSize(a), 8, 1)
1026 bm = cv.CreateImage(cv.GetSize(b), 8, 1)
1027 cv.CvtColor(a, am, cv.CV_RGB2GRAY)
1028 cv.CvtColor(b, bm, cv.CV_RGB2GRAY)
1029 fi = FrameInterpolator(am, bm)
1030 for k in range(factor):
1031 on = (i * factor) + k
1032 cv.SaveImage("/Users/jamesb/Desktop/foo/%06d.png" % on, fi.lerp(k / float(factor), a, b))
1040 velx = cv.CreateMat(hv, wv, cv.CV_32FC1)
1041 vely = cv.CreateMat(hv, wv, cv.CV_32FC1)
1042 cv.CalcOpticalFlowBM(a, b, (6,6), (8,8), (32,32), 0, velx, vely)
1045 scribble = cv.CreateImage(cv.GetSize(a), 8, 3)
1046 cv.CvtColor(a, scribble, cv.CV_GRAY2BGR)
1047 for y in range(0,360, 4):
1048 for x in range(0,640, 4):
1049 cv.Line(scribble, (x, y), (x+velx[y,x], y + vely[y,x]), (0,255,0))
1050 cv.Line(a, (640/5,0), (640/5,480), 255)
1051 cv.Line(a, (0,360/5), (640,360/5), 255)
1054 ivx = cv.CreateMat(h, w, cv.CV_32FC1)
1055 ivy = cv.CreateMat(h, w, cv.CV_32FC1)
1056 cv.Resize(velx, ivx)
1057 cv.Resize(vely, ivy)
1059 cv.ConvertScale(ivx, ivx, 0.5)
1060 cv.ConvertScale(ivy, ivy, 0.5)
1064 velx = cv.CreateMat(h, w, cv.CV_32FC1)
1065 vely = cv.CreateMat(h, w, cv.CV_32FC1)
1066 cv.CalcOpticalFlowLK(a, b, (7,7), velx, vely)
1069 cv.Smooth(velx, velx, param1 = 7)
1070 cv.Smooth(vely, vely, param1 = 7)
1071 scribble = cv.CreateImage(cv.GetSize(a), 8, 3)
1072 cv.CvtColor(a, scribble, cv.CV_GRAY2BGR)
1073 for y in range(0, 360, 8):
1074 for x in range(0, 640, 8):
1075 cv.Line(scribble, (x, y), (x+velx[y,x], y + vely[y,x]), (0,255,0))
1076 self.snapL((a,scribble,b))
1080 offx = cv.CreateMat(h, w, cv.CV_32FC1)
1081 offy = cv.CreateMat(h, w, cv.CV_32FC1)
1082 for y in range(360):
1083 for x in range(640):
1087 x = cv.CreateMat(h, w, cv.CV_32FC1)
1088 y = cv.CreateMat(h, w, cv.CV_32FC1)
1089 d = cv.CreateImage(cv.GetSize(a), 8, 1)
1090 cv.ConvertScale(velx, x, 1.0)
1091 cv.ConvertScale(vely, y, 1.0)
1095 cv.Remap(b, d, x, y)
1096 cv.Merge(d, d, a, None, scribble)
1097 original = cv.CreateImage(cv.GetSize(a), 8, 3)
1098 cv.Merge(b, b, a, None, original)
1099 self.snapL((original, scribble))
1101 def snap(self, img):
1105 for i,img in enumerate(L):
1106 cv.NamedWindow("snap-%d" % i, 1)
1107 cv.ShowImage("snap-%d" % i, img)
1109 cv.DestroyAllWindows()
1111 def yield_line_image(self):
1112 src = cv.LoadImage(find_sample("building.jpg"), 0)
1113 dst = cv.CreateImage(cv.GetSize(src), 8, 1)
1114 cv.Canny(src, dst, 50, 200, 3)
1117 def test_HoughLines2_STANDARD(self):
1118 li = cv.HoughLines2(self.yield_line_image(),
1119 cv.CreateMemStorage(),
1120 cv.CV_HOUGH_STANDARD,
1126 self.assert_(len(li) > 0)
1127 self.assert_(li[0] != None)
1129 def test_HoughLines2_PROBABILISTIC(self):
1130 li = cv.HoughLines2(self.yield_line_image(),
1131 cv.CreateMemStorage(),
1132 cv.CV_HOUGH_PROBABILISTIC,
1138 self.assert_(len(li) > 0)
1139 self.assert_(li[0] != None)
1141 def test_Save(self):
1142 for o in [ cv.CreateImage((128,128), cv.IPL_DEPTH_8U, 1), cv.CreateMat(16, 16, cv.CV_32FC1) ]:
1143 cv.Save("test.save", o)
1144 loaded = cv.Load("test.save", cv.CreateMemStorage())
1145 self.assert_(type(o) == type(loaded))
1147 def test_ExtractSURF(self):
1148 img = cv.LoadImage(find_sample("lena.jpg"), 0)
1149 w,h = cv.GetSize(img)
1150 for hessthresh in [ 300,400,500]:
1152 for layers in [1,3,10]:
1153 kp,desc = cv.ExtractSURF(img, None, cv.CreateMemStorage(), (dsize, hessthresh, 3, layers))
1154 self.assert_(len(kp) == len(desc))
1156 self.assert_(len(d) == {0:64, 1:128}[dsize])
1157 for pt,laplacian,size,dir,hessian in kp:
1158 self.assert_((0 <= pt[0]) and (pt[0] <= w))
1159 self.assert_((0 <= pt[1]) and (pt[1] <= h))
1160 self.assert_(laplacian in [-1, 0, 1])
1161 self.assert_((0 <= dir) and (dir <= 360))
1162 self.assert_(hessian >= hessthresh)
1164 def local_test_Haar(self):
1166 hcfile = os.environ['OPENCV_ROOT'] + '/share/opencv/haarcascades/haarcascade_frontalface_default.xml'
1167 hc = cv.Load(hcfile)
1168 img = cv.LoadImage('Stu.jpg', 0)
1169 faces = cv.HaarDetectObjects(img, hc, cv.CreateMemStorage())
1170 self.assert_(len(faces) > 0)
1171 for (x,y,w,h),n in faces:
1172 cv.Rectangle(img, (x,y), (x+w,y+h), 255)
1175 def test_FindChessboardCorners(self):
1176 im = cv.CreateImage((512,512), cv.IPL_DEPTH_8U, 1)
1180 status,corners = cv.FindChessboardCorners( im, (7,7) )
1182 # Perfect checkerboard
1184 return ((96 + o) + 40 * i, (96 + o) + 40 * j)
1187 color = ((i ^ j) & 1) * 255
1188 cv.Rectangle(im, xf(i,j, 0), xf(i,j, 39), color, cv.CV_FILLED)
1189 status,corners = cv.FindChessboardCorners( im, (7,7) )
1190 self.assert_(status)
1191 self.assert_(len(corners) == (7 * 7))
1193 # Exercise corner display
1194 im3 = cv.CreateImage(cv.GetSize(im), cv.IPL_DEPTH_8U, 3)
1195 cv.Merge(im, im, im, None, im3)
1196 cv.DrawChessboardCorners(im3, (7,7), corners, status)
1201 # Run it with too many corners
1205 color = ((i ^ j) & 1) * 255
1208 cv.Rectangle(im, (x, y), (x+4, y+4), color, cv.CV_FILLED)
1209 status,corners = cv.FindChessboardCorners( im, (7,7) )
1211 # XXX - this is very slow
1214 cv.RandArr(rng, im, cv.CV_RAND_UNI, 0, 255.0)
1216 status,corners = cv.FindChessboardCorners( im, (7,7) )
1218 def test_FillPoly(self):
1219 scribble = cv.CreateImage((640,480), cv.IPL_DEPTH_8U, 1)
1222 cv.SetZero(scribble)
1223 self.assert_(cv.CountNonZero(scribble) == 0)
1224 cv.FillPoly(scribble, [ [ (random.randrange(640), random.randrange(480)) for i in range(100) ] ], (255,))
1225 self.assert_(cv.CountNonZero(scribble) != 0)
1227 def test_create(self):
1228 """ CvCreateImage, CvCreateMat and the header-only form """
1229 for (w,h) in [ (320,400), (640,480), (1024, 768) ]:
1230 data = "z" * (w * h)
1232 im = cv.CreateImage((w,h), 8, 1)
1233 cv.SetData(im, data, w)
1234 im2 = cv.CreateImageHeader((w,h), 8, 1)
1235 cv.SetData(im2, data, w)
1236 self.assertSame(im, im2)
1238 m = cv.CreateMat(h, w, cv.CV_8UC1)
1239 cv.SetData(m, data, w)
1240 m2 = cv.CreateMatHeader(h, w, cv.CV_8UC1)
1241 cv.SetData(m2, data, w)
1242 self.assertSame(m, m2)
1244 self.assertSame(im, m)
1245 self.assertSame(im2, m2)
1247 def test_reshape(self):
1248 """ Exercise Reshape """
1253 im = cv.CreateMat( rows, cols, cv.CV_32FC1 )
1254 elems = rows * cols * 1
1256 return cv.GetSize(im) + (cv.CV_MAT_CN(cv.GetElemType(im)),)
1258 for c in (1, 2, 3, 4):
1259 nc,nr,nd = crd(cv.Reshape(im, c))
1260 self.assert_(nd == c)
1261 self.assert_((nc * nr * nd) == elems)
1263 nc,nr,nd = crd(cv.Reshape(im, 0, 97*2))
1264 self.assert_(nr == 97*2)
1265 self.assert_((nc * nr * nd) == elems)
1267 nc,nr,nd = crd(cv.Reshape(im, 3, 97*2))
1268 self.assert_(nr == 97*2)
1269 self.assert_(nd == 3)
1270 self.assert_((nc * nr * nd) == elems)
1272 def test_casts(self):
1273 """ Exercise Reshape """
1274 im = cv.LoadImage(find_sample("lena.jpg"), 0)
1275 data = im.tostring()
1276 cv.SetData(im, data, cv.GetSize(im)[0])
1278 start_count = sys.getrefcount(data)
1280 # Conversions should produce same data
1281 self.assertSame(im, cv.GetImage(im))
1283 self.assertSame(im, m)
1284 self.assertSame(m, cv.GetImage(m))
1285 im2 = cv.GetImage(m)
1286 self.assertSame(im, im2)
1288 self.assertEqual(sys.getrefcount(data), start_count + 2)
1290 self.assertEqual(sys.getrefcount(data), start_count + 1)
1292 self.assertEqual(sys.getrefcount(data), start_count)
1294 self.assertEqual(sys.getrefcount(data), start_count - 1)
1296 def test_clipline(self):
1297 self.assert_(cv.ClipLine((100,100), (-100,0), (500,0)) == ((0,0), (99,0)))
1298 self.assert_(cv.ClipLine((100,100), (-100,0), (-200,0)) == None)
1300 def test_smoke_image_processing(self):
1301 src = cv.LoadImage(find_sample("lena.jpg"), cv.CV_LOAD_IMAGE_GRAYSCALE)
1302 #dst = cv.CloneImage(src)
1303 for aperture_size in [1, 3, 5, 7]:
1304 dst_16s = cv.CreateImage(cv.GetSize(src), cv.IPL_DEPTH_16S, 1)
1305 dst_32f = cv.CreateImage(cv.GetSize(src), cv.IPL_DEPTH_32F, 1)
1307 cv.Sobel(src, dst_16s, 1, 1, aperture_size)
1308 cv.Laplace(src, dst_16s, aperture_size)
1309 cv.PreCornerDetect(src, dst_32f)
1310 eigendst = cv.CreateImage((6*cv.GetSize(src)[0], cv.GetSize(src)[1]), cv.IPL_DEPTH_32F, 1)
1311 cv.CornerEigenValsAndVecs(src, eigendst, 8, aperture_size)
1312 cv.CornerMinEigenVal(src, dst_32f, 8, aperture_size)
1313 cv.CornerHarris(src, dst_32f, 8, aperture_size)
1314 cv.CornerHarris(src, dst_32f, 8, aperture_size, 0.1)
1318 def test_fitline(self):
1319 cv.FitLine([ (1,1), (10,10) ], cv.CV_DIST_L2, 0, 0.01, 0.01)
1320 cv.FitLine([ (1,1,1), (10,10,10) ], cv.CV_DIST_L2, 0, 0.01, 0.01)
1321 a = cv.LoadImage(find_sample("lena.jpg"), 0)
1322 eig_image = cv.CreateImage(cv.GetSize(a), cv.IPL_DEPTH_32F, 1)
1323 temp_image = cv.CreateImage(cv.GetSize(a), cv.IPL_DEPTH_32F, 1)
1324 pts = cv.GoodFeaturesToTrack(a, eig_image, temp_image, 100, 0.04, 2, use_harris=1)
1325 hull = cv.ConvexHull2(pts, cv.CreateMemStorage(), return_points = 1)
1326 cv.FitLine(hull, cv.CV_DIST_L2, 0, 0.01, 0.01)
1328 def test_moments(self):
1329 im = cv.LoadImage(find_sample("lena.jpg"), 0)
1332 for x_order in range(4):
1333 for y_order in range(4 - x_order):
1334 orders.append((x_order, y_order))
1336 # Just a smoke test for these three functions
1337 [ cv.GetSpatialMoment(mo, xo, yo) for (xo,yo) in orders ]
1338 [ cv.GetCentralMoment(mo, xo, yo) for (xo,yo) in orders ]
1339 [ cv.GetNormalizedCentralMoment(mo, xo, yo) for (xo,yo) in orders ]
1341 # Hu Moments we can do slightly better. Check that the first
1342 # six are invariant wrt image reflection, and that the 7th
1345 hu0 = cv.GetHuMoments(cv.Moments(im))
1347 hu1 = cv.GetHuMoments(cv.Moments(im))
1348 self.assert_(len(hu0) == 7)
1349 self.assert_(len(hu1) == 7)
1351 self.assert_(abs(hu0[i] - hu1[i]) < 1e-6)
1352 self.assert_(abs(hu0[i] + hu1[i]) < 1e-6)
1354 def temp_test(self):
1357 def failing_test_rand_GetStarKeypoints(self):
1358 #GetStarKeypoints [<cvmat(type=4242400d rows=64 cols=64 step=512 )>, <cv.cvmemstorage object at 0xb7cc40d0>, (45, 0.73705234376883488, 0.64282591451367344, 0.1567738743689836, 3)]
1359 print cv.CV_MAT_CN(0x4242400d)
1360 mat = cv.CreateMat( 64, 64, cv.CV_32FC2)
1361 cv.GetStarKeypoints(mat, cv.CreateMemStorage(), (45, 0.73705234376883488, 0.64282591451367344, 0.1567738743689836, 3))
1364 def test_rand_PutText(self):
1365 """ Test for bug 2829336 """
1366 mat = cv.CreateMat( 64, 64, cv.CV_8UC1)
1367 font = cv.InitFont(cv.CV_FONT_HERSHEY_SIMPLEX, 1, 1)
1368 cv.PutText(mat, chr(127), (20, 20), font, 255)
1370 def failing_test_rand_FindNearestPoint2D(self):
1371 subdiv = cv.CreateSubdivDelaunay2D((0,0,100,100), cv.CreateMemStorage())
1372 cv.SubdivDelaunay2DInsert( subdiv, (50, 50))
1373 cv.CalcSubdivVoronoi2D(subdiv)
1375 for e in subdiv.edges:
1377 print " ", cv.Subdiv2DEdgeOrg(e)
1378 print " ", cv.Subdiv2DEdgeOrg(cv.Subdiv2DRotateEdge(e, 1)), cv.Subdiv2DEdgeDst(cv.Subdiv2DRotateEdge(e, 1))
1379 print "nearest", cv.FindNearestPoint2D(subdiv, (1.0, 1.0))
1381 if __name__ == '__main__':
1383 if len(sys.argv) == 1:
1384 suite = unittest.TestLoader().loadTestsFromTestCase(TestDirected)
1385 unittest.TextTestRunner(verbosity=2).run(suite)
1387 suite = unittest.TestSuite()
1388 suite.addTest(TestDirected(sys.argv[1]))
1389 unittest.TextTestRunner(verbosity=2).run(suite)