Image sensor module image compression method thereof and electronic device

An image compression method of an image sensor module, the method comprising:

• obtaining a plurality of images corresponding to a plurality of exposure times;
• selecting a reference image based on a reference brightness value from among the plurality of images;
• generating at least one packing data,
• wherein the at least one packing data respectively corresponds to at least one remaining image other than the reference image from among the plurality of images, and
• wherein each of the at least one packing data comprises a disparity indicating a difference between a correction reference image, which corresponds to the reference image corrected based on an exposure time ratio of an exposure time of a corresponding image to an exposure time of the reference image, and the corresponding image;
• and
• outputting the reference image and the at least one packing data as compressed image data.

An electronic device comprising:

• an image sensor module configured to:
• generate a plurality of images corresponding to a plurality of exposure times;
• and
• output compression image data including at least one packing data and a reference image selected from among the plurality of images,
• wherein the at least one packing data respectively corresponds to at least one remaining image other than the reference image;
• and
• a processor configured to:
• reconstruct the at least one remaining image from the compression image data, based on information about the reference image, the at least one packing data, and the plurality of exposure times;
• and
• generate a high-dynamic-range (HDR) image based on the reference image and the at least one remaining image that is reconstructed.