def main():
args = sys.argv[1:]
if len(args) < 3:
print >> sys.stderr, 'check_dist.py a.png b.png out.pfm'
sys.exit(1)
if use_c:
pfm_arg = args[2]
if os.path.splitext(pfm_arg)[1] == '.mat':
nnf = read_mat(pfm_arg)
if nnf.shape[2] != 3:
nnf = numpy.dstack(
(nnf, numpy.zeros((nnf.shape[0], nnf.shape[1]))))
pfm_arg = '_temp_dist.pfm'
pfm.writepfm(nnf, pfm_arg)
ans = subprocess.check_output('./patchtable check_dist %s %s %s' %
(args[0], args[1], pfm_arg),
shell=True)
sys.stdout.write(ans)
return
a = skimage.img_as_float(skimage.io.imread(args[0]))
b = skimage.img_as_float(skimage.io.imread(args[1]))
if os.path.splitext(args[2])[1] == '.pfm':
nnf = pfm.readpfm(args[2])
else:
nnf = read_mat(args[2])
beh = b.shape[0] - patch_w + 1
bew = b.shape[1] - patch_w + 1
nnf_h = a.shape[0] - patch_w + 1
nnf_w = a.shape[1] - patch_w + 1
dimg = numpy.zeros((nnf_h, nnf_w))
for ay in range(nnf_h):
for ax in range(nnf_w):
bx = nnf[ay, ax, 0]
by = nnf[ay, ax, 1]
assert 0 <= bx < bew, (bx, bew)
assert 0 <= by < beh, (by, beh)
apatch = a[ay:ay + patch_w, ax:ax + patch_w, :].flatten()
bpatch = b[by:by + patch_w, bx:bx + patch_w, :].flatten()
d = (apatch - bpatch)
d = numpy.sqrt(numpy.sum(d * d))
dimg[ay, ax] = d
#d_nnf = numpy.sqrt(nnf[ay,ax,2])
#delta = abs(d-d_nnf)
#if delta > 1e-4:
# print 'error:', ay, ax, d, dcorrect
#print '0,0 nnf:', nnf[0,0,:]
#print '0,0 correct distance:', dimg[0,0]
#print '%d,0 nnf:'%(nnf_w-1), nnf[0,nnf_w-1,:]
#print '%d,0 correct distance:'%(nnf_w-1), dimg[0,nnf_w-1]
print numpy.mean(dimg.flatten())
def main():
args = sys.argv[1:]
if len(args) < 3:
print >> sys.stderr, 'check_dist.py a.png b.png out.pfm'
sys.exit(1)
if use_c:
pfm_arg = args[2]
if os.path.splitext(pfm_arg)[1] == '.mat':
nnf = read_mat(pfm_arg)
if nnf.shape[2] != 3:
nnf = numpy.dstack((nnf, numpy.zeros((nnf.shape[0], nnf.shape[1]))))
pfm_arg = '_temp_dist.pfm'
pfm.writepfm(nnf, pfm_arg)
ans = subprocess.check_output('./patchtable check_dist %s %s %s' % (args[0], args[1], pfm_arg), shell=True)
sys.stdout.write(ans)
return
a = skimage.img_as_float(skimage.io.imread(args[0]))
b = skimage.img_as_float(skimage.io.imread(args[1]))
if os.path.splitext(args[2])[1] == '.pfm':
nnf = pfm.readpfm(args[2])
else:
nnf = read_mat(args[2])
beh = b.shape[0]-patch_w+1
bew = b.shape[1]-patch_w+1
nnf_h = a.shape[0]-patch_w+1
nnf_w = a.shape[1]-patch_w+1
dimg = numpy.zeros((nnf_h, nnf_w))
for ay in range(nnf_h):
for ax in range(nnf_w):
bx = nnf[ay,ax,0]
by = nnf[ay,ax,1]
assert 0 <= bx < bew, (bx, bew)
assert 0 <= by < beh, (by, beh)
apatch = a[ay:ay+patch_w, ax:ax+patch_w, :].flatten()
bpatch = b[by:by+patch_w, bx:bx+patch_w, :].flatten()
d = (apatch-bpatch)
d = numpy.sqrt(numpy.sum(d*d))
dimg[ay,ax] = d
#d_nnf = numpy.sqrt(nnf[ay,ax,2])
#delta = abs(d-d_nnf)
#if delta > 1e-4:
# print 'error:', ay, ax, d, dcorrect
#print '0,0 nnf:', nnf[0,0,:]
#print '0,0 correct distance:', dimg[0,0]
#print '%d,0 nnf:'%(nnf_w-1), nnf[0,nnf_w-1,:]
#print '%d,0 correct distance:'%(nnf_w-1), dimg[0,nnf_w-1]
print numpy.mean(dimg.flatten())
def main():
def make_prev_nnf():
prev_nnf_x = numpy.asarray(numpy.random.randint(bew, size=(aeh, aew)), float)
prev_nnf_y = numpy.asarray(numpy.random.randint(beh, size=(aeh, aew)), float)
if use_allowed:
for y in range(aeh):
for x in range(aew):
while not allowed[prev_nnf_y[y,x], prev_nnf_x[y,x], 0]:
prev_nnf_y[y,x] = random.randrange(beh)
prev_nnf_x[y,x] = random.randrange(bew)
prev_nnf_dist = numpy.zeros((aeh, aew))
prev_nnf = numpy.dstack((prev_nnf_x, prev_nnf_y, prev_nnf_dist))
prev_nnf_filename = 'prev_nnf.pfm'
pfm.writepfm(prev_nnf, prev_nnf_filename)
return prev_nnf_filename
ntest = 100
patch_w = 8
if not imgcollection_bug:
print '=' * 80
print 'Stress Test Descriptor'
print '=' * 80
s = subprocess.check_output('./patchtable test_descriptor', shell=True)
last_line = s.strip().split('\n')[-1].strip()
if last_line != 'test_descriptor: OK':
raise ValueError('descriptor test failed')
else:
print 'Passed'
simple_test_count = 10
for i in range(ntest):
random.seed(i)
numpy.random.seed(i)
print '=' * 80
print 'Stress Test %d/%d' % (i, ntest)
print '=' * 80
print
a = gen_image()
b = gen_image()
allowed = gen_allowed(b)
aeh = a.shape[0]-patch_w+1
aew = a.shape[1]-patch_w+1
beh = b.shape[0]-patch_w+1
bew = b.shape[1]-patch_w+1
imwrite(a, 'atest.png')
imwrite(b, 'btest.png')
imwrite(allowed, 'allowed.png')
if os.path.exists('out.pfm'):
os.remove('out.pfm')
suffix = ''
use_allowed = False
r2 = random.randrange(2) == 0
if i <= simple_test_count:
r2 = 1
if r2:
use_allowed = True
r = random.randrange(5)
if i <= simple_test_count:
r = 3
speed = random.randrange(min_speed,max_speed)
if r == 0:
suffix = ' -speed %d' % speed
elif r == 1:
suffix = ' -speed %d -coherence_spatial %f' % (speed, random.uniform(0, 100))
elif r == 2:
suffix = ' -speed %d -is_descriptor 1' % speed
elif r == 3:
prev_nnf_filename = make_prev_nnf()
suffix = ' -speed %d -prev_nnf %s -recalc_dist_temporal 1 -coherence_spatial %f -coherence_temporal %f' % (speed, prev_nnf_filename, random.uniform(0, 100), random.uniform(0, 100))
if use_allowed:
suffix += ' -allowed_patches allowed.png'
if imgcollection_bug:
prev_nnf_filename = make_prev_nnf()
coherence_spatial = coherence_temporal = 10.0
suffix = ' -prev_nnf %s -coherence_spatial %f -coherence_temporal %f -limit 1000000 -allowed_patches allowed.png' % (prev_nnf_filename, coherence_spatial, coherence_temporal)
cmd = './patchtable match atest.png btest.png out.pfm%s' % suffix
print cmd
s = subprocess.check_output(cmd, shell=True)
print s
mean_dist = float_last_line(s, 'mean_dist:')
mean_dist_recomputed = float_last_line(s, 'mean_dist_recomputed:')
if abs(mean_dist-mean_dist_recomputed) > 1e-4:
raise ValueError('mean_dist (%f) and mean_dist_recomputed (%f) differ' % (mean_dist, mean_dist_recomputed))
ann = pfm.readpfm('out.pfm')
xmin = numpy.min(ann[:,:,0])
xmax = numpy.max(ann[:,:,0])
ymin = numpy.min(ann[:,:,1])
ymax = numpy.max(ann[:,:,1])
assert xmin >= 0 and ymin >= 0, (xmin, ymin)
assert xmax < bew and ymax < beh, (xmax, ymax, bew, beh)
if use_allowed:
for y in range(ann.shape[0]):
for x in range(ann.shape[1]):
bx = ann[y,x,0]
by = ann[y,x,1]
allowed_val = allowed[by,bx,0]
if not allowed_val:
raise ValueError('accessed disallowed patch: %d, %d => %d, %d, %d' % (x, y, bx, by, allowed_val))
print
print 'Unit tests passed.'
