def test_rgb_alpha_to_bgra(self):
size = (32, 64, 3)
rgbim = model.DataArray(numpy.zeros(size, dtype=numpy.uint8))
rgbim[:, :, 0] = 1
rgbim[:, :, 1] = 100
rgbim[:, :, 2] = 200
bgraim = format_rgba_darray(rgbim, 0)
# Checks it added alpha channel and set everything to scale
self.assertEqual(bgraim.shape, (32, 64, 4))
self.assertTrue((bgraim == 0).all())
def test_rgb_alpha_to_bgra(self):
size = (32, 64, 3)
rgbim = model.DataArray(numpy.zeros(size, dtype=numpy.uint8))
rgbim[:, :, 0] = 1
rgbim[:, :, 1] = 100
rgbim[:, :, 2] = 200
bgraim = format_rgba_darray(rgbim, 0)
# Checks it added alpha channel and set everything to scale
self.assertEqual(bgraim.shape, (32, 64, 4))
self.assertTrue((bgraim == 0).all())
def test_rgb_to_bgra(self):
size = (32, 64, 3)
rgbim = model.DataArray(numpy.zeros(size, dtype=numpy.uint8))
rgbim[:, :, 0] = 1
rgbim[:, :, 1] = 100
rgbim[:, :, 2] = 200
bgraim = format_rgba_darray(rgbim, 255)
# Checks it added alpha channel
self.assertEqual(bgraim.shape, (32, 64, 4))
self.assertEqual(bgraim[0, 0, 3], 255)
# Check the channels were swapped to BGR
self.assertTrue((bgraim[1, 1] == [200, 100, 1, 255]).all())
def test_rgb_to_bgra(self):
size = (32, 64, 3)
rgbim = model.DataArray(numpy.zeros(size, dtype=numpy.uint8))
rgbim[:, :, 0] = 1
rgbim[:, :, 1] = 100
rgbim[:, :, 2] = 200
bgraim = format_rgba_darray(rgbim, 255)
# Checks it added alpha channel
self.assertEqual(bgraim.shape, (32, 64, 4))
self.assertEqual(bgraim[0, 0, 3], 255)
# Check the channels were swapped to BGR
self.assertTrue((bgraim[1, 1] == [200, 100, 1, 255]).all())