Samsung patents camera tech that boosts image clarity using nano-posts

1. An image processing device comprising: an image sensor comprising a unit block comprising a plurality of pixels arranged adjacent to each other, and a plurality of nano-posts arranged on the unit block; and a processor configured to process an input image acquired through the image sensor by: dividing the input image into a plurality of first sub-images of a Bayer pattern including pixels having a same parallax among the plurality of pixels included in the input image; converting the plurality of first sub-images into a plurality of RGB demosaic images; converting the plurality of RGB demosaic images into a plurality of YCbCr images comprising first luminance data and color difference data; generating second luminance data by applying the first luminance data, from among the plurality of YCbCr images, to a super resolution algorithm; generating third luminance data by upscaling the first luminance data; generating fourth luminance data by performing a weighted sum operation on the second luminance data and the third luminance data based on an attention map generated by the super resolution algorithm; acquiring a plurality of second YCbCr images by updating the first luminance data of the plurality of YCbCr images to the fourth luminance data; and generating an output image by merging a plurality of second sub-images generated based on the plurality of second YCbCr images.