The present disclosure includes systems and computer-implemented methods for redesigning rooms in a house using digital image analysis. The analysis includes defining room parameters based on the architectural shape of the room as determined from an analysis of the walls, ceiling, windows, and doors, performing a room size calibration and defining an empty 3D room. Using the analyzed digital image, redesign can progress with selecting types of inner surfaces of the room from a pre-defined collection of architectural shapes, selecting types of furniture in the room, and selecting types of lighting. Then, a 3D model of the redesigned room is generated wherein the architectural shape is in the form of 2D and wherein the 2D image has an associated 3D image. At least one image of the redesigned 3D room may be generated and stored, and may be transmitted to a receiver wherein the corresponding showroom picture is displayed.