Electronic apparatus and method for designing multi-format decoder

A non-transitory computer-readable recording medium storing instructions which, when executed by a processor, cause the processor to perform operations comprising:

• processing first information about a first codec and second information about a second codec to produce a first transform coefficient associated with the first codec and a second transform coefficient associated with the second codec, through a predetermined transform method;
• determining a similarity between the first transform coefficient associated with the first codec and the second transform coefficient associated with the second codec;
• and
• designing to transform a single-format decoder, which performs image processing on an image signal using the first codec, to a multi-format decoder, which performs image processing on the image signal using the second codec, by adding at least one of a shifter, an adder, and a subtractor to the single-format decoder, based on the determined similarity.

An electronic apparatus comprising:

• a decoder configured to perform image processing on an image signal by using a first codec;
• and
• a processor configured to control the decoder to:
• control the decoder to process first information about the first codec and second information about a second codec to produce a first transform coefficient associated with the first codec and a second transform coefficient associated with the second codec, through a predetermined transform method,
• determine a similarity between the first transform coefficient associated with the first codec and the second transform coefficient associated with the second codec, and
• based on the determined similarity, perform image processing on the image signal by using the second codec.