def roundtrip(self, dtype, x, scaling=1):
f = NamedTemporaryFile(suffix='.png')
imsave(f.name, x)
f.seek(0)
y = imread(f.name)
assert_array_almost_equal((x * scaling).astype(np.int32), y)
def crop(event):
if event.key != 'c': return
fn = canvas.name + "_crop.png"
h, w = canvas.patch_size
sio.imsave(fn, canvas.img[canvas.y:canvas.y + h,
canvas.x:canvas.x + w])
print "Written cropped image to %s." % fn
def roundtrip(self, dtype, x, scaling=1):
f = NamedTemporaryFile(suffix='.png')
fname = f.name
f.close()
imsave(fname, x)
y = imread(fname)
assert_array_almost_equal((x * scaling).astype(np.int32), y)
def test_save(self):
io.imsave("test.png", [1, 2, 3], plugin="test")
def save_to_file(self):
from scikits.image import io
filename = str(QtGui.QFileDialog.getSaveFileName())
if len(filename) == 0:
return
io.imsave(filename, self.arr)
def test_save(self):
io.imsave('test.png', [1, 2, 3], plugin='test')
def test_save(self):
io.imsave('test.png', [1, 2, 3], plugin='test')
def crop(event):
if event.key != 'c': return
fn = canvas.name + "_crop.png"
h, w = canvas.patch_size
sio.imsave(fn, canvas.img[canvas.y:canvas.y + h, canvas.x:canvas.x + w])
print "Written cropped image to %s." % fn
# Source coordinates
sc = np.array(plt.ginput(n=4))
screen_coords = [(0, 0),
(1023, 0),
(1023, 767),
(0, 767)]
# Homography: source to camera
H_SC = estimate_homography(screen_coords, sc)
tc = np.array(plt.ginput(n=4))
print tc
tc_in_screen = \
np.dot(np.linalg.inv(H_SC),
np.hstack((tc, np.ones((4,1)))).T).T
tc_in_screen /= tc_in_screen[:, 2, np.newaxis]
# Screen to screen homography
H_SS = estimate_homography(screen_coords,
tc_in_screen)
grid = sio.imread('fatgrid.jpg')
grid_warp = tf.homography(grid, H_SS,
output_shape=grid.shape,
order=2)
np.save('/tmp/H_SS.npy', H_SS)
sio.imsave('/tmp/grid_warp.png', grid_warp)
from scikits.image import io, transform
s = 0.7
img = io.imread('scikits_image_logo.png')
h, w, c = img.shape
print "\nScaling down logo by %.1fx..." % s
img = transform.homography(img, [[s, 0, 0],
[0, s, 0],
[0, 0, 1]],
output_shape=(int(h*s), int(w*s), 4),
order=3)
io.imsave('scikits_image_logo_small.png', img)
def save_to_file(self):
from scikits.image import io
filename = str(QtGui.QFileDialog.getSaveFileName())
if len(filename) == 0:
return
io.imsave(filename, self.arr)
