def test_opencl_implementation(self):
scikits.image.color.lazyopts.enable()
colspaces = ['HSV', 'RGB CIE', 'XYZ']
colfuncs_from = [hsv2rgb, rgbcie2rgb, xyz2rgb]
colfuncs_to = [rgb2hsv, rgb2rgbcie, rgb2xyz]
# create an input, and make some promises about it.
img = lazy.lnumpy.NdarraySymbol.new(value=self.colbars_array)
img.value = img.value.astype('float32')
img.contiguous=True
img.shape = (None, None, 3)
img.dtype=np.dtype('float32')
assert_almost_equal(convert_colorspace(self.colbars_array, 'RGB',
'RGB'), self.colbars_array)
for i, space in enumerate(colspaces):
print 'test: colorspace', space
gt = colfuncs_from[i](img)
eval_gt = lazy.function([img], gt)
assert_almost_equal(convert_colorspace(self.colbars_array, space,
'RGB'), eval_gt(img.value))
gt = colfuncs_to[i](img)
eval_gt = lazy.function([img], gt)
#eval_gt.print_eval_order()
assert_almost_equal(convert_colorspace(self.colbars_array, 'RGB',
space), eval_gt(img.value))
def test_lazy_convert_colorspace(self):
colspaces = ['HSV', 'RGB CIE', 'XYZ']
colfuncs_from = [hsv2rgb, rgbcie2rgb, xyz2rgb]
colfuncs_to = [rgb2hsv, rgb2rgbcie, rgb2xyz]
img = lazy.lnumpy.NdarraySymbol.new(value=self.colbars_array)
assert_almost_equal(convert_colorspace(self.colbars_array, 'RGB',
'RGB'), self.colbars_array)
for i, space in enumerate(colspaces):
gt = colfuncs_from[i](img)
assert_almost_equal(convert_colorspace(self.colbars_array, space,
'RGB'), gt)
gt = colfuncs_to[i](img)
assert_almost_equal(convert_colorspace(self.colbars_array, 'RGB',
space), gt)
self.assertRaises(ValueError, convert_colorspace, img, 'nokey', 'XYZ')
self.assertRaises(ValueError, convert_colorspace, img, 'RGB', 'nokey')
def test_convert_colorspace(self):
colspaces = ['HSV', 'RGB CIE', 'XYZ']
colfuncs_from = [hsv2rgb, rgbcie2rgb, xyz2rgb]
colfuncs_to = [rgb2hsv, rgb2rgbcie, rgb2xyz]
assert_almost_equal(
convert_colorspace(self.colbars_array, 'RGB', 'RGB'),
self.colbars_array)
for i, space in enumerate(colspaces):
gt = colfuncs_from[i](self.colbars_array)
assert_almost_equal(
convert_colorspace(self.colbars_array, space, 'RGB'), gt)
gt = colfuncs_to[i](self.colbars_array)
assert_almost_equal(
convert_colorspace(self.colbars_array, 'RGB', space), gt)
self.assertRaises(ValueError, convert_colorspace, self.colbars_array,
'nokey', 'XYZ')
self.assertRaises(ValueError, convert_colorspace, self.colbars_array,
'RGB', 'nokey')
def orig_fn():
return convert_colorspace(imgdata, space, 'RGB')
