The present invention relates to a method, apparatus and program for processing an image, capable of producing a sharp image. A digital camera 1 includes an imaging device 4 formed of a single-plane sensor that provides one color signal for each pixel. A plurality of images are captured at a high shutter speed by the imaging device 4 and stored in a frame memory 22 of a signal processor 7. The signal processor 7 detects a positional relationship among the plurality of images stored in the frame memory 22 and estimates a correct image with three color signals at each pixel, based on the detected positional relationship. The present invention is applicable, for example, to a digital camera.