def test_pixel_at():
global image
size = image_size(image)
# 2. pixel index to row, col
assert (500, 2) == pixel_at_index(1700, size)
# 3. row, col to pixel index
assert 1700 == index_at_pixel(500, 2, size)
assert 120400 == index_at_pixel(400, 200, size)
def positive(self):
if hasattr(self, '_positive'):
return self._positive, self._positive_size
TT.debug("Collecting positive samples.")
self._positive = {}
self._positive_size = 0
self._positive_expanded = {}
for data_file, label_file in self.files:
labels = load_csv(os.path.join(self.root_path, label_file))
self._positive[data_file] = labels
self._positive_size += len(labels)
self._positive_expanded[data_file] = {}
for col, row, p in labels:
self._positive_expanded[data_file][index_at_pixel(col=col, row=row, size=self.image_size)] = p
TT.debug("Found", self._positive_size, "positive samples.")
return self.positive
