Projector and light source control method

A projector comprising:

• a light source;
• a light source control portion that controls an amount of light emitted by the light source;
• an input portion which image data is input into;
• an amount of light acquisition portion that acquires a set amount of light of the light source based on a feature amount of the image data input into the input portion;
• a correction value acquisition portion that acquires a correction value based on the set amount of light;
• a correction portion that corrects the set amount of light using the correction value acquired by the correction value acquisition portion;
• an extension rate calculation portion that calculates an extension rate to be used for luminance extension processing that changes a luminance range of image data based on the characteristic amount of the image data input into the input portion, and
• an extension processing portion that performs the luminance extension processing with respect to the image data using the extension rate that is calculated by the extension rate calculation portion,
• wherein the light source control portion controls the amount of light of the light source based on the set amount of light that is corrected by the correction portion.

A light source control method for controlling an amount of light of a light source provided in a projector, the method comprising:

• acquiring a set amount of light of the light source based on a characteristic amount of input image data;
• acquiring a correction value based on the set amount of light;
• correcting the set amount of light by using the correction value;
• and
• controlling an amount of light of the light source based on the corrected set amount of light,
• wherein as coefficients for obtaining the correction value, a first coefficient for changing the correction value to a small value and a second coefficient for changing the correction value to a large value are provided, and
• wherein one of the first coefficient and the second coefficient is selected based on the set amount of light, and the correction value is obtained using the selected first coefficient or second coefficient.