INNER CODE UNIT · Python

cz

NVlabs/instant-ngp · scripts/flip/__init__.py:77

        cz = 200 * (input_color[1:2, :, :] - input_color[2:3, :, :])
        transformed_color = np.concatenate((y, cx, cz), 0)

    elif fromSpace2toSpace == "ycxcz2xyz":
        y = (input_color[0:1, :, :] + 16) / 116
        cx = input_color[1:2, :, :] / 500
        cz = input_color[2:3, :, :] / 200

        x = y + cx
        z = y - cz
        transformed_color = np.concatenate((x, y, z), 0)

        reference_illuminant = color_space_transform(np.ones(dim), 'linrgb2xyz')
        transformed_color = np.multiply(transformed_color, reference_illuminant)

    elif fromSpace2toSpace == "xyz2lab":
        reference_illuminant = color_space_transform(np.ones(dim), 'linrgb2xyz')
        input_color = np.divide(input_color, reference_illuminant)

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