def test_small_cascade():
color_edges = lab.color_filter_from_greyscale_filter(lab.edges)
color_inverted = lab.color_filter_from_greyscale_filter(lab.inverted)
color_blur_5 = lab.color_filter_from_greyscale_filter(lab.make_blur_filter(5))
im = lab.load_color_image('test_images/centered_pixel.png')
expected = {
'height': 11,
'width': 11,
'pixels': [(255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255),
(255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255),
(255, 255, 255), (255, 255, 255), (254, 250, 252), (254, 244, 248), (253, 240, 246), (253, 240, 246), (253, 240, 246), (254, 244, 248), (254, 250, 252), (255, 255, 255), (255, 255, 255),
(255, 255, 255), (255, 255, 255), (254, 244, 248), (253, 238, 244), (252, 227, 238), (252, 227, 238), (252, 227, 238), (253, 238, 244), (254, 244, 248), (255, 255, 255), (255, 255, 255),
(255, 255, 255), (255, 255, 255), (253, 240, 246), (252, 227, 238), (250, 211, 228), (250, 211, 228), (250, 211, 228), (252, 227, 238), (253, 240, 246), (255, 255, 255), (255, 255, 255),
(255, 255, 255), (255, 255, 255), (253, 240, 246), (252, 227, 238), (250, 211, 228), (250, 211, 228), (250, 211, 228), (252, 227, 238), (253, 240, 246), (255, 255, 255), (255, 255, 255),
(255, 255, 255), (255, 255, 255), (253, 240, 246), (252, 227, 238), (250, 211, 228), (250, 211, 228), (250, 211, 228), (252, 227, 238), (253, 240, 246), (255, 255, 255), (255, 255, 255),
(255, 255, 255), (255, 255, 255), (254, 244, 248), (253, 238, 244), (252, 227, 238), (252, 227, 238), (252, 227, 238), (253, 238, 244), (254, 244, 248), (255, 255, 255), (255, 255, 255),
(255, 255, 255), (255, 255, 255), (254, 250, 252), (254, 244, 248), (253, 240, 246), (253, 240, 246), (253, 240, 246), (254, 244, 248), (254, 250, 252), (255, 255, 255), (255, 255, 255),
(255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255),
(255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255), (255, 255, 255)]
}
f_cascade = lab.filter_cascade([color_edges, color_inverted, color_blur_5])
assert callable(f_cascade), 'filter_cascade should return a function.'
result = f_cascade(im)
compare_color_images(result, expected)
def test_cascades(self):
cascade0 = [
self.color_edges,
lab.color_filter_from_greyscale_filter(lab.make_sharpen_filter(3))
]
cascade1 = [
lab.color_filter_from_greyscale_filter(lab.make_blur_filter(5)),
self.color_edges,
lab.color_filter_from_greyscale_filter(lab.make_sharpen_filter(3))
]
cascade3 = [self.color_edges] * 5 + [self.color_inverted]
for fname in ('tree', ):
for cix, cascade in enumerate([cascade0, cascade1]):
inpfile = os.path.join(TEST_DIRECTORY, 'test_images',
f'{fname}.png')
expfile = os.path.join(TEST_DIRECTORY, 'test_results',
f'{fname}_cascade{cix}.png')
im = lab.load_color_image(inpfile)
oim = object_hash(im)
f_cascade = lab.filter_cascade(cascade)
self.assertTrue(callable(f_cascade),
'filter_cascade should return a function.')
result = f_cascade(im)
expected = lab.load_color_image(expfile)
self.assertEqual(
object_hash(im), oim,
'Be careful not to modify the original image!')
self.compare_color_images(result, expected)
def test_cascade_2(self):
im = lab.load_color_image('test_images/frog.png')
filter1 = lab.color_filter_from_greyscale_filter(lab.edges)
filter2 = lab.color_filter_from_greyscale_filter(
lab.make_blur_filter(5))
filt = lab.filter_cascade([filter1, filter1, filter2, filter1])
result = filt(im)
lab.save_color_image(result,
'/Users/yaxinliu/Downloads/lab1/Cascade.png')
def test_cascade_1(self):
im = lab.load_color_image('test_images/centered_pixel.png')
f1 = self.color_edges
f2 = self.color_inverted
f3 = self.color_blur_5
expected = {
'height':
11,
'width':
11,
'pixels': [(255, 255, 255), (255, 255, 255), (255, 255, 255),
(255, 255, 255), (255, 255, 255), (255, 255, 255),
(255, 255, 255), (255, 255, 255), (255, 255, 255),
(255, 255, 255), (255, 255, 255), (255, 255, 255),
(255, 255, 255), (255, 255, 255), (255, 255, 255),
(255, 255, 255), (255, 255, 255), (255, 255, 255),
(255, 255, 255), (255, 255, 255), (255, 255, 255),
(255, 255, 255), (255, 255, 255), (255, 255, 255),
(254, 250, 252), (254, 244, 248), (253, 240, 246),
(253, 240, 246), (253, 240, 246), (254, 244, 248),
(254, 250, 252), (255, 255, 255), (255, 255, 255),
(255, 255, 255), (255, 255, 255), (254, 244, 248),
(253, 238, 244), (252, 227, 238), (252, 227, 238),
(252, 227, 238), (253, 238, 244), (254, 244, 248),
(255, 255, 255), (255, 255, 255), (255, 255, 255),
(255, 255, 255), (253, 240, 246), (252, 227, 238),
(250, 211, 228), (250, 211, 228), (250, 211, 228),
(252, 227, 238), (253, 240, 246), (255, 255, 255),
(255, 255, 255), (255, 255, 255), (255, 255, 255),
(253, 240, 246), (252, 227, 238), (250, 211, 228),
(250, 211, 228), (250, 211, 228), (252, 227, 238),
(253, 240, 246), (255, 255, 255), (255, 255, 255),
(255, 255, 255), (255, 255, 255), (253, 240, 246),
(252, 227, 238), (250, 211, 228), (250, 211, 228),
(250, 211, 228), (252, 227, 238), (253, 240, 246),
(255, 255, 255), (255, 255, 255), (255, 255, 255),
(255, 255, 255), (254, 244, 248), (253, 238, 244),
(252, 227, 238), (252, 227, 238), (252, 227, 238),
(253, 238, 244), (254, 244, 248), (255, 255, 255),
(255, 255, 255), (255, 255, 255), (255, 255, 255),
(254, 250, 252), (254, 244, 248), (253, 240, 246),
(253, 240, 246), (253, 240, 246), (254, 244, 248),
(254, 250, 252), (255, 255, 255), (255, 255, 255),
(255, 255, 255), (255, 255, 255), (255, 255, 255),
(255, 255, 255), (255, 255, 255), (255, 255, 255),
(255, 255, 255), (255, 255, 255), (255, 255, 255),
(255, 255, 255), (255, 255, 255), (255, 255, 255),
(255, 255, 255), (255, 255, 255), (255, 255, 255),
(255, 255, 255), (255, 255, 255), (255, 255, 255),
(255, 255, 255), (255, 255, 255), (255, 255, 255),
(255, 255, 255)]
}
f_cascade = lab.filter_cascade([f1, f2, f3])
self.assertTrue(callable(f_cascade),
'filter_cascade should return a function.')
result = f_cascade(im)
self.compare_color_images(result, expected)
def test_cascades(cascade, image):
color_edges = lab.color_filter_from_greyscale_filter(lab.edges)
color_inverted = lab.color_filter_from_greyscale_filter(lab.inverted)
cascade0 = [color_edges,
lab.color_filter_from_greyscale_filter(lab.make_sharpen_filter(3))]
cascade1 = [lab.color_filter_from_greyscale_filter(lab.make_blur_filter(5)),
color_edges,
lab.color_filter_from_greyscale_filter(lab.make_sharpen_filter(3)),
lambda im: {k: ([(i[1], i[0], i[2]) for i in v] if isinstance(v, list) else v) for k, v in im.items()}]
cascade2 = [color_edges]*5 + [color_inverted]
cascades = [cascade0, cascade1, cascade2]
inpfile = os.path.join(TEST_DIRECTORY, 'test_images', f'{image}.png')
expfile = os.path.join(TEST_DIRECTORY, 'test_results', f'{image}_cascade{cascade}.png')
im = lab.load_color_image(inpfile)
oim = object_hash(im)
f_cascade = lab.filter_cascade(cascades[cascade])
assert callable(f_cascade), 'filter_cascade should return a function.'
result = f_cascade(im)
expected = lab.load_color_image(expfile)
assert object_hash(im) == oim, 'Be careful not to modify the original image!'
compare_color_images(result, expected)