Abstract: A streaming application setup assistant may receive an image captured by a camera, the image capturing a physical environment that is to be part of a live video stream. A plurality of pixels may be selected from the image. The plurality of pixels may be grouped, based on a pixel color value for each pixel, into a plurality of pixel groups. A key pixel color value may be calculated that is associated with an average pixel color value of pixels in a largest pixel group of the plurality of pixel groups. A similarity color range that encompasses a threshold percentage of the pixels in the largest pixel group may be identified based on the key pixel color value. The similarity color range may be utilized to configure settings for replacement of the background in the live video stream.