Image processing device, image pickup device, computer, image processing method and non transitory computer readable medium

An image processing device to which image capture data including image pickup data is input, comprising:

• a data acquisition unit configured to discriminate whether shooting condition data is included in the image capture data to be input, and to acquires contents of the shooting condition data when it is discriminated that the shooting condition data is included in the image capture data to be input;
• and
• a reduction processing determination unit configured to determine whether reduction association processing associated with reduction processing of generating reduced image data from the image pickup data is executed, a processing parameter of the reduction association processing, and a processing parameter of the reduction processing, on the basis of an acquisition result of the shooting condition data by the data acquisition unit,
• wherein the shooting condition data includes information on the presence or absence of an optical low-pass filter at the time of the creation of the image pickup data and information on an array of color filters of an image pickup section used at the time of the creation of the image pickup data,
• wherein the reduction processing determination unit determines to process low-pass filter processing as the reduction association processing when moire is suppressed in a captured image represented by the image capture data according to the array of color filters, and when moire is appeared in a reduced image after processing the reduction processing on the image pickup data, on the basis of an acquisition result of the shooting condition data.