Color balance calculation system, color balance calculation method, and color balance calculation program

A color balance calculation system that is configured to calculate a color balance of an interior of a target region in a building, the system comprising:

• an acquisition unit that is configured to acquire interior data representing the interior;
• and
• a calculation unit that is configured to calculate the color balance based on the interior data, wherein
• the interior data includes color information and shape information of each of multiple components forming the interior,
• the components include:
• a base surface facing the target region;
• and
• a placed object arranged in the target region, and
• the calculation unit is configured to calculate, as the color balance, a ratio of surface areas of multiple color families based on a visible exposed base surface area of the base surface, a color of the base surface, a visible exposed object surface area of the placed object, and a color of the placed object.

A color balance calculation method of calculating a color balance of an interior of a target region in a building, the method comprising:

• acquiring interior data representing the interior;
• and
• calculating the color balance based on the interior data, wherein
• the interior data includes color information and shape information of each of multiple components forming the interior,
• the components include:
• a base surface facing the target region;
• and
• a placed object arranged in the target region, and the calculating the color balance includes
• calculating a total surface area of a first color family and a total surface area of a second color family based on a visible exposed base surface area of the base surface, a color of the base surface, a visible exposed object surface area of the placed object, and a color of the placed object, and further calculating, as the color balance, a ratio of the total surface area of the first color family and the total surface area of the second color family, or
• calculating the total surface area of the first color family, the total surface area of the second color family, and a total surface area of an accent color family that is an accent, based on the visible exposed base surface area of the base surface, the color of the base surface, the visible exposed object surface area of the placed object, and the color of the placed object;
• and further calculating, as the color balance, a ratio of the total surface area of the first color family, the total surface area of the second color family, and the total surface area of the accent color family.