Image processing device and electronic apparatus using the same

摘要

An image processing device includes a compression circuit adapted to perform compression of image data after sorting the pixels in an arrangement included in a plurality of lines in image data into a plurality of lines corresponding respectively to color components, a memory adapted to store the image data thus compressed, and an expansion circuit adapted to expand the image data thus compressed to restore the arrangement of the pixels.

主权项

1. An image processing device comprising:
an image data acquisition section adapted to first acquire a plurality of types of image data respectively representing a plurality of color images in which a shooting object is shot with respective exposure amounts different from each other; a compression circuit adapted to then sort pixels included in a plurality of lines corresponding respectively to color components in at least one type of image data obtained by the image data acquisition section, the compression circuit sorting the pixels in an arrangement included in the plurality of lines adjacent to each other in the at least one type of image data into
a row of the pixels representing a first color component,a row of the pixels representing a second color component, anda row of the pixels representing a third color component; a memory adapted to then store the sorted plurality of types of image data, which is obtained by the image data acquisition section, as much as at least one frame for each of the types, wherein the compression circuit is further adapted to then compress the stored sorted image data; an expansion circuit adapted to expand the image data compressed out of the plurality of types of image data read out from the memory, and then restore the arrangement of the pixels included in the plurality of lines in the image data expanded; an interpolation circuit adapted to perform an interpolation operation using data values of peripheral pixels on each of the pixels in the plurality of types of image data including the at least one type of image data, which is read out from the memory and then expanded and restored by the expansion circuit, to thereby output image data including the plurality of color components for each of the pixels; and a dynamic range expansion circuit adapted to combine the plurality of types of image data output from the interpolation circuit to thereby generate composite image data representing a single color image with a dynamic range expanded.