I have a jpeg containing alpha blended text. Knowing the font and size, I deduced a png file representing the text

[![kitty with watermark](https://i.stack.imgur.com/6LfDs.png)](https://i.stack.imgur.com/6LfDs.png)
[![watermark](https://i.stack.imgur.com/gJAAx.png)](https://i.stack.imgur.com/gJAAx.png)

Using ImageMagick, can I get an approximation of the original picture?