Method and apparatus for processing image

An apparatus for processing an image, the apparatus comprising:

• at least one processor;
• and
• a memory storing one or more instructions that, when executed by the at least one processor, cause the apparatus to:
• obtain a pixel shift set indicating information of movement of a plurality of pixels included in coinciding portions among a plurality of low-resolution images with respect to a single scene;
• divide the pixel shift set into an integer portion and a fractional portion;
• generate an integer pixel shift set and a fractional pixel shift set;
• select a filter set corresponding to the plurality of pixels from among a plurality of pre-stored filter sets including a filter weight value applied to the pixels, based on the fractional pixel shift set;
• and
• obtain a high-resolution image with respect to the single scene, based on the plurality of low-resolution images, the selected filter set, and the integer pixel shift set.