Patent ID: 8150194

Claim:
An image adjustment amount determination device, comprising: a processor that: receives an input video signal comprising a plurality of frame images; divides the input video signal into the plurality of frame images; determines a processing target image which is to be the target of image processing and one or more neighboring images which are located in the vicinity of the processing target image in a display order, on the basis of a predetermined criterion from the plurality of frame images; calculates average luminance and a size of amplitude of a spatial frequency component for the one or more neighboring images, and a size of amplitude of a spatial frequency component for the processing target image; calculates an amount of motion between the processing target image and the one or more neighboring images; and determines an adjustment amount of the amplitude of the spatial frequency component for the processing target image on the basis of the average luminance for the one or more neighboring images, the spatial frequency components for the one or more neighboring images and the processing target image, the sizes of the amplitude of the spatial frequency components for the one or more neighboring images and the processing target image, the amount of motion between the processing target image and the one or more neighboring images, and a temporal interval between the processing target image and the one or more neighboring images, wherein the determining an adjustment amount includes calling parameters A to G in equation (1) from a parameter storage on the basis of the average luminance (Yave) of the one or more neighboring images (F 0 ), the spatial frequency components (SF) for the one or more neighboring images (F 0 ) and the processing target image (F 1 ), the sizes (P_sf) of the amplitude of the spatial frequency components for the one or more neighboring images (F 0 ) and the processing target image (F 1 ), the amount of motion (V1) between the processing target image (F 1 ) and the one or more neighboring images (F 0 ), the temporal interval (t) between the processing target image (F 1 ) and the one or more neighboring images (F 0 ), and determining the adjustment amount of the amplitude of the spatial frequency components in both horizontal and vertical directions, from the called parameters A to G and equation (1), wherein equation (1) is defined as: adjustment amount ( Yave , SF , P ⁢ _ sf , V ⁢ ⁢ 1 , t ) = A 1 + ( α × SF / β ) 2 ⁢ ⁢ n + B × exp ⁡ ( - ( ( SF - γ ⁢ ⁢ 1 ) / C ) 2 ) + D × exp ⁡ ( - ( ( SF - γ ⁢ ⁢ 2 ) / E ) 2 ) + F × exp ⁡ ( - ( ( SF - γ ⁢ ⁢ 3 ) / G ) 2 ) , wherein n, α, β, γ1, γ2, and γ3 are constants.