I know how to `add` the `effect strip` and `transform` to resize a given image. This works when I have a low res image that I want to enlarge. But when the image is too high of a resolution and I scale it down, the image is [windowboxed](https://en.wikipedia.org/wiki/Windowbox_%28film%29). It's as though the render frame is being transformed and not the source image file.

![the resulting windowbox](https://i.stack.imgur.com/uczD8.png)

Is there a way around this besides modifying the image file in an external program e.g. GIMP?

**Edit**

To clarify - here is the image that's imported to show the missing pixels.

![enter image description here](https://i.stack.imgur.com/BtwZd.jpg)