One of our application is to use your favorite figure on lighting, such as below picture. BacklightFly can provide the uniform luminance with image for you.

Based on your lamp size and light source to set up the density profile for background firstly. Then, You can insert the your picture, and BacklightFly will translate the picture to dot distribution and add the density value to background.

You can select "Masks-Image" function to insert your picture, and that will keep background.

Otherwise, you also can use "Masks-Include/Exclude" function to keep image only.