docker-python/tests/test_chainercv.py at master · feibyte/docker-python · GitHub

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from __future__ import division

import math

import numpy

import unittest

from chainercv.utils import tile_images

class TestChainerCV(unittest.TestCase):

def test_tile_images(self):

B = numpy.random.randint(10, 20)

n_col = numpy.random.randint(2, 5)

H = 30

W = 40

fill = 128

pad = 0

imgs = numpy.random.uniform(255, size=(B, 3, H, W))

tile = tile_images(imgs, n_col, pad, fill=fill)

if isinstance(pad, int):

pad_y = pad

pad_x = pad

else:

pad_y, pad_x = pad

n_row = int(math.ceil(B / n_col))

self.assertTrue(n_col >= 1 and n_row >= 1)

start_y_11 = H + pad_y + pad_y // 2

start_x_11 = W + pad_x + pad_x // 2

tile_11 = tile[:,

start_y_11:start_y_11 + H,

start_x_11:start_x_11 + W]

numpy.testing.assert_equal(tile_11, imgs[(n_col - 1) + 2])

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