Why do you need to try a photo inverter in action?
You may use the image inverter to convert a white photo to a black one, for example, to see the details more clearly. Or you can upload any format, e.g., tiff file, to see how the photo will look in the end.
How does the color inverter work?
Photo inversion occurs at the pixel level: white shades replace dark shades and contrariwise. So, it's kind of the other way round. Besides, you are free to pick out the desired format to upload an image as the tool supports most of them.