First I will change an image from black to white. i used the layers tool to change the colors of the horse.
when creating a silhouette with Brightness and contrast you’ll add a new adjustment layer. you’ll reduce the brightness and turn up the contrast. you’ll use the legacy checkbox . you’ll have to reduce brightness again and you’ll notice the hooves art completely black either. also the background will be darker as well and what you have to do to fix that is cranking ump the contrast to plus 100. I took the brightness value down to -50 and ill change the contrast value to match at +50.