Image data encoding/decoding method and apparatus

A method of encoding an image with an encoding apparatus, comprising:

• determining an intra prediction mode for a current block included in the image based on an intra prediction being performed for the current block;
• performing prediction for the current block based on the intra prediction mode to generate a prediction block;
• encoding the current block based on the prediction block into a bitstream;
• and
• encoding data processing information into the bitstream,
• wherein the data processing information is used for performing a data processing on a reconstructed image, the reconstructed image being an image obtained by decoding the bitstream, and
• wherein the data processing comprises padding at least one region to the reconstructed image,
• wherein the padding is performed by selecting one among a plurality of padding methods, and
• wherein the plurality of padding methods comprises a first padding method which uses a same sample value for the region to be padded, and a second padding method which uses a sample inside the reconstructed image for the region to be padded.

A computer readable recoding medium storing a bitstream which is generated by a method of encoding an image, the method of encoding comprises:

• determining an intra prediction mode for a current block included in the image based on an intra prediction being performed for the current block;
• performing prediction for the current block based on the intra prediction mode to generate a prediction block;
• encoding the current block based on the prediction block into a bitstream;
• and
• encoding data processing information into the bitstream,
• wherein the data processing information is used for performing a data processing on a reconstructed image, the reconstructed image being an image obtained by decoding the bitstream, and
• wherein the data processing comprises padding at least one region to the reconstructed image.

A method of transmitting a bitstream which is generated by a method of encoding an image, the method of encoding comprises:

• determining an intra prediction mode for a current block included in the image based on an intra prediction being performed for the current block;
• performing prediction for the current block based on the intra prediction mode to generate a prediction block;
• encoding the current block based on the prediction block into a bitstream;
• and
• encoding data processing information into the bitstream,
• wherein the data processing information is used for performing a data processing on a reconstructed image, the reconstructed image being an image obtained by decoding the bitstream, and
• wherein the data processing comprises padding at least one region to the reconstructed image,
• wherein the padding is performed by selecting one among a plurality of padding methods, and
• wherein the plurality of padding methods comprises a first padding method which uses a same sample value for the region to be padded, and a second padding method which uses a sample inside the reconstructed image for the region to be padded.