Patent ID: 8576925

Claim:
An image processing apparatus which converts a frame rate by dividing an input frame into subframes and outputting the subframes, comprising: at least a processor and memory, cooperating to perform: a pre-processing step of pre-processing an input frame by copying the input frame to an intermediate frame, setting a block having a predetermined size for a pixel of interest in the intermediate frame, and replacing one pixel value of the pixel of interest in the intermediate frame with a minimum pixel value of neighboring pixels of the pixel of interest in the block within the intermediate frame; a low-pass filter processing step of generating a first subframe of the input frame by performing a low-pass filtering process on the intermediate frame which has the pixel value of the pixel of interest already replaced in the pre-processing in said pre-processing step; a generating step of generating a second subframe of the input frame from the first subframe and the input frame; and a switching step of alternately outputting the first subframe and the second subframe at predetermined times.