pillow_gif_from_numpy.py

    def to_pillow(img):
        # https://github.com/imageio/imageio/blob/master/imageio/plugins/pillowmulti.py#L371
        # img = np.concatenate((img,255*np.ones(list(img.shape[:2])+[1],dtype='uint8')),axis=-1)
        # img = Image.fromarray(img.astype('uint8'), 'RGBA')
        img = Image.fromarray(img.astype('uint8'), 'RGB')
        # a_channel = Image.new('L', img.size, 255)  # 'L' 8-bit pixels, black and white
        # img.putalpha(a_channel)
        # p = img.getpalette()
        # img = img.convert('P', dither=None,colors=1024)
        # #img.putpalette
        img = img.quantize(colors=256, method=1)
        return img

    frames = [to_pillow(img) for img in img_list]
    frames[0].save(output_path, format='GIF', append_images=frames[1:], save_all=True, loop=0,  # disposal=0,
                   # palette=frames[0].getpalette(),
                   include_color_table=True, optimize=False, interlace=False)