def test_subtract(self):
narys = 3
arys, sh, sz = _generateTestArrays(narys)
subVals = [1, arange(sz, dtype=dtypeFunc('int16')).reshape(sh)]
imageData = ImagesLoader(self.sc).fromArrays(arys)
for subVal in subVals:
subData = imageData.subtract(subVal)
subtracted = subData.collect()
expectedArys = map(lambda ary: ary - subVal, arys)
for actual, expected in zip(subtracted, expectedArys):
assert_true(allclose(expected, actual[1]))
def test_subtract(self):
narys = 3
arys, sh, sz = _generateTestArrays(narys)
subVals = [1, arange(sz, dtype=dtypeFunc("int16")).reshape(sh)]
imageData = ImagesLoader(self.sc).fromArrays(arys)
for subVal in subVals:
subData = imageData.subtract(subVal)
subtracted = subData.collect()
expectedArys = map(lambda ary: ary - subVal, arys)
for actual, expected in zip(subtracted, expectedArys):
assert_true(allclose(expected, actual[1]))
