def test_edges_centered_pixel(self):
# 6: Edge detection on the centered_pixel.png image
fname = 'centered_pixel'
with self.subTest(f=fname):
inpfile = os.path.join(TEST_DIRECTORY, 'test_images',
'%s.png' % fname)
input_img = lab.load_image(inpfile)
input_hash = object_hash(input_img)
result = lab.edges(input_img)
expected = {
'height':
11,
'width':
11,
'pixels': [
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, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 255, 0, 0, 0, 0, 0, 0, 0,
0, 255, 0, 255, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 255, 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, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0
]
}
self.assertEqual(object_hash(input_img), input_hash,
"Be careful not to modify the original image!")
self.compare_images(result, expected)
def test_edges_centered_pixel(self):
im = lab.load_image("test_images/centered_pixel.png")
result = lab.edges(im)
expected = im.copy()
for i in [60, 60 - 11, 60 + 11]:
expected["pixels"][i - 1] = 255
expected["pixels"][i] = 255
expected["pixels"][i + 1] = 255
expected["pixels"][60] = 0
self.compare_images(result, expected)
def test_edges(self):
for fname in ('mushroom', 'twocats', 'chess'):
with self.subTest(f=fname):
inpfile = os.path.join(TEST_DIRECTORY, 'test_images', '%s.png' % fname)
expfile = os.path.join(TEST_DIRECTORY, 'test_results', '%s_edges.png' % fname)
input_img = lab.load_image(inpfile)
input_hash = object_hash(input_img)
result = lab.edges(input_img)
expected = lab.load_image(expfile)
self.assertEqual(object_hash(input_img), input_hash, "Be careful not to modify the original image!")
self.compare_images(result, expected)
def test_edges_images(fname):
inpfile = os.path.join(TEST_DIRECTORY, 'test_images', '%s.png' % fname)
expfile = os.path.join(TEST_DIRECTORY, 'test_results',
'%s_edges.png' % fname)
input_img = lab.load_image(inpfile)
input_hash = object_hash(input_img)
result = lab.edges(input_img)
expected = lab.load_image(expfile)
assert object_hash(
input_img
) == input_hash, "Be careful not to modify the original image!"
compare_images(result, expected)
def test_edges_centered_pixel():
inpfile = os.path.join(TEST_DIRECTORY, 'test_images', 'centered_pixel.png')
image = lab.load_image(inpfile)
expected = {
'height':
11,
'width':
11,
'pixels': [
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, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 255, 255, 255, 0, 0, 0, 0, 0, 0, 0, 0, 255, 0, 255, 0,
0, 0, 0, 0, 0, 0, 0, 255, 255, 255, 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, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
],
}
result = lab.edges(image)
compare_images(result, expected)
def test_edges_centered_pixel(self):
# REPLACE THIS with your test case from section 6
exp = {
'height':
11,
'width':
11,
'pixels': [
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, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 255, 255, 255, 0, 0, 0, 0, 0, 0, 0, 0, 255,
0, 255, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 255, 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, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0
]
}
image = lab.load_image('test_images/centered_pixel.png')
self.compare_images(exp, lab.edges(image))
def test_edges_centered_pixel(self):
# REPLACE THIS with your test case from section 6
im = lab.load_image('test_images/centered_pixel.png')
expected = {
'height':
11,
'width':
11,
'pixels': [
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, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 255, 255, 255, 0, 0, 0, 0, 0, 0, 0, 0, 255,
0, 255, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 255, 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, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0
]
}
return self.compare_images(lab.edges(im), expected)
def test_edges_centered_pixel(self):
im = lab.load_image('test_images/centered_pixel.png')
result = lab.edges(im)
expected = {
'height':
11,
'width':
11,
'pixels': [
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, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 255, 255, 255, 0, 0, 0, 0, 0, 0, 0, 0, 255,
0, 255, 0, 0, 0, 0, 0, 0, 0, 0, 255, 255, 255, 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, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0
],
}
self.compare_images(result, expected)
def test_edges_centered_pixel():
# REPLACE THIS with your test case from section 6
im = lab.load_image(
os.path.join(TEST_DIRECTORY, 'test_images', 'centered_pixel.png'))
result = lab.edges(im)
expected = {
'height':
11,
'width':
11,
'pixels': [
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, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 255, 255, 255, 0, 0, 0, 0, 0, 0, 0, 0, 255, 0, 255, 0,
0, 0, 0, 0, 0, 0, 0, 255, 255, 255, 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, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
],
}
compare_images(result, expected)
def test_edges_construct(self):
im = lab.load_image('test_images/construct.png')
result = lab.edges(im)
lab.save_image(result, '/Users/yaxinliu/Downloads/lab0/edgesImage.png')
