def test_uint16(): im16, eroded16, dilated16, opened16, closed16 = ( map(img_as_uint, [im, eroded, dilated, opened, closed])) np.testing.assert_allclose(grey.erosion(im16), eroded16) np.testing.assert_allclose(grey.dilation(im16), dilated16) np.testing.assert_allclose(grey.opening(im16), opened16) np.testing.assert_allclose(grey.closing(im16), closed16)
def _test_image(self, image): with expected_warnings(['precision loss']): result_opening = grey.opening(image, self.disk) testing.assert_equal(result_opening, self.expected_opening) with expected_warnings(['precision loss']): result_closing = grey.closing(image, self.disk) testing.assert_equal(result_closing, self.expected_closing)
def test_uint16(): with expected_warnings(['Possible precision loss']): im16, eroded16, dilated16, opened16, closed16 = (map( img_as_uint, [im, eroded, dilated, opened, closed])) np.testing.assert_allclose(grey.erosion(im16), eroded16) np.testing.assert_allclose(grey.dilation(im16), dilated16) np.testing.assert_allclose(grey.opening(im16), opened16) np.testing.assert_allclose(grey.closing(im16), closed16)
def test_uint16(): with expected_warnings(['Possible precision loss']): im16, eroded16, dilated16, opened16, closed16 = ( map(img_as_uint, [im, eroded, dilated, opened, closed])) np.testing.assert_allclose(grey.erosion(im16), eroded16) np.testing.assert_allclose(grey.dilation(im16), dilated16) np.testing.assert_allclose(grey.opening(im16), opened16) np.testing.assert_allclose(grey.closing(im16), closed16)
def test_2d_ndimage_equivalence(): image = np.zeros((9, 9), np.uint8) image[2:-2, 2:-2] = 128 image[3:-3, 3:-3] = 196 image[4, 4] = 255 opened = grey.opening(image) closed = grey.closing(image) selem = ndi.generate_binary_structure(2, 1) ndimage_opened = ndi.grey_opening(image, footprint=selem) ndimage_closed = ndi.grey_closing(image, footprint=selem) assert_array_equal(opened, ndimage_opened) assert_array_equal(closed, ndimage_closed)
def test_2d_ndimage_equivalence(): image = np.zeros((9, 9), np.uint8) image[2:-2, 2:-2] = 128 image[3:-3, 3:-3] = 196 image[4, 4] = 255 opened = grey.opening(image) closed = grey.closing(image) selem = ndi.generate_binary_structure(2, 1) ndimage_opened = ndi.grey_opening(image, footprint=selem) ndimage_closed = ndi.grey_closing(image, footprint=selem) testing.assert_array_equal(opened, ndimage_opened) testing.assert_array_equal(closed, ndimage_closed)
def test_binary_closing(): strel = selem.square(3) binary_res = binary.binary_closing(bw_img, strel) grey_res = img_as_bool(grey.closing(bw_img, strel)) testing.assert_array_equal(binary_res, grey_res)
def test_float(): np.testing.assert_allclose(grey.erosion(im), eroded) np.testing.assert_allclose(grey.dilation(im), dilated) np.testing.assert_allclose(grey.opening(im), opened) np.testing.assert_allclose(grey.closing(im), closed)
def test_close_black_pixel(self): for s in self.selems: assert np.all(grey.closing(self.black_pixel, s) == 255)
def test_binary_closing(): strel = selem.square(3) binary_res = binary.binary_closing(bw_img, strel) with expected_warnings(['precision loss']): grey_res = img_as_bool(grey.closing(bw_img, strel)) testing.assert_array_equal(binary_res, grey_res)
def test_close_white_pixel(self): for s in self.selems: grey_close = grey.closing(self.white_pixel, s) assert np.all(grey_close == self.white_pixel)
def _test_image(self, image): result_opening = grey.opening(image, self.disk) testing.assert_equal(result_opening, self.expected_opening) result_closing = grey.closing(image, self.disk) testing.assert_equal(result_closing, self.expected_closing)
def test_binary_closing(): strel = selem.square(3) binary_res = binary.binary_closing(bw_lena, strel) grey_res = img_as_bool(grey.closing(bw_lena, strel)) testing.assert_array_equal(binary_res, grey_res)
def test_binary_closing(): strel = selem.square(3) binary_res = binary.binary_closing(bw_lena, strel) grey_res = grey.closing(bw_lena, strel) testing.assert_array_equal(binary_res, grey_res)