Patent ID: 8750610

Claim:
A white adjusting device comprising: a memory containing instructions; and a processor configured to act on the instructions and act as: an estimation unit that estimates a color temperature of an image to be processed; an acquisition unit that acquires a representative color value from a region close to white which is a region in which a color in a color range predetermined from a preset white color value of the image exists; a calculation unit that calculates a correction representative color value from both a color value corresponding to the color temperature estimated in the estimation unit and the representative color value acquired in the acquisition unit; and a conversion unit that converts a color of the image so that the correction representative color value is set to the white color value, wherein the calculation unit calculates the correction representative color value by weighting based on the color temperature so that as the color temperature becomes closer to the white point, the weight of the representative color value becomes bigger than the weight of the color value corresponding to the color temperature, and as the color temperature becomes more distant from the white point, the weight of the color value corresponding to the color temperature becomes bigger than the weight of the representative color value.