Patent ID: 8319896
Filing Date: 2012-11-27
Classification: H04N

Abstract:
1. An image processing apparatus that performs image quality adjustment processing on an image signal depending on external light, the image processing apparatus comprising: an external light detection unit configured to detect external light information including at least illuminance or color temperature so as to determine a change in external light depending on the detected external light information; a switching detection unit configured to detect any one of switching processes among switching the input of an image signal, channel switching, and broadcast program switching to the image processing apparatus; a measurement unit configured to measure the time that has elapsed since the switching process has been detected by the switching detection unit; a control unit configured to determine a target setting value to be used for image processing for displaying the image signal with an image quality corresponding to changed external light, when the external light detection unit recognizes that external light has been changed; and an image processing unit configured to execute image quality adjustment processing of the image step-by-step by using the target setting value determined by the control unit and an image quality adjustment amount per unit time until the image reaches an image quality corresponding to the target setting value, wherein the control unit determines based on the measurement result obtained by the measurement unit whether or not a change timing of external light detected by the external light detection unit is before a predetermined time has elapsed since the switching detection unit detected the switching process, and, when the change timing of external light is before the predetermined time has elapsed as a result of the determination, provides instructions to the image processing unit about executing image quality adjustment processing while increasing the adjustment amount per unit time.