b8a5e5db6c2c0ff9540d84c11c05b21fc6023ae6,skimage/color/colorconv.py,,rgba2rgb,#,163

Before Change

    
    arr = _prepare_rgba_array(rgba)
    if isinstance(background, tuple) and len(background) != 3:
        raise ValueError("the background must be a tuple with 3 items - the "
                         "RGB color of the background. Got {0} items."
                         .format(len(background)))

    alpha = arr[..., -1]
    channels = arr[..., :-1]
    out = np.empty_like(channels)

After Change

    if len(background) != 3:
        raise ValueError("background must be an array-like containing 3 RGB "
                         f"values. Got {len(background)} items")
    if np.any(background < 0) or np.any(background > 1):
        raise ValueError("background RGB values must be floats between "
                         "0 and 1.")

    background = background[np.newaxis, ...]
    alpha = arr[..., -1, np.newaxis]
    channels = arr[np.newaxis, ..., :-1]

Instances