def test_stats(self):
from test_utils import elementwiseMean, elementwiseVar
arys, shape, size = _generateTestArrays(2, 'uint8')
imageData = ImagesLoader(self.sc).fromArrays(arys)
statsval = imageData.stats()
floatarys = [ary.astype('float16') for ary in arys]
# StatsCounter contains a few different measures, only test a couple:
expectedMean = elementwiseMean(floatarys)
expectedVar = elementwiseVar(floatarys)
assert_true(allclose(expectedMean, statsval.mean()))
assert_true(allclose(expectedVar, statsval.variance()))
def test_stats(self):
from test_utils import elementwiseMean, elementwiseVar
arys, shape, size = _generateTestArrays(2, 'uint8')
imageData = ImagesLoader(self.sc).fromArrays(arys)
statsval = imageData.stats()
floatarys = [ary.astype('float16') for ary in arys]
# StatsCounter contains a few different measures, only test a couple:
expectedMean = elementwiseMean(floatarys)
expectedVar = elementwiseVar(floatarys)
assert_true(allclose(expectedMean, statsval.mean()))
assert_true(allclose(expectedVar, statsval.variance()))
