Image processing apparatus and image processing method

An image processing method of an image processing apparatus comprising:

• performing a two-dimensional orthogonal transform on a plurality of images;
• performing a one-dimensional orthogonal transform in a direction in which the images are arranged on two-dimensional orthogonal transform coefficient data obtained by performing the two-dimensional orthogonal transform on the images;
• and
• encoding three-dimensional orthogonal transform coefficient data obtained by performing the one-dimensional orthogonal transform on the two-dimensional orthogonal transform coefficient data.

An image processing apparatus comprising:

• a decoder configured to individually decode a plurality of two-dimensional orthogonal transform encoded data obtained by performing a two-dimensional orthogonal transform on a plurality of images;
• an one-dimensional orthogonal transform unit configured to perform a one-dimensional orthogonal transform in a direction in which the images are arranged on a plurality of two-dimensional orthogonal transform coefficient data obtained by decoding the plurality of two-dimensional orthogonal transform encoded data using the decoder;
• and
• a three-dimensional orthogonal transform coefficient data encoder configured to encode three-dimensional orthogonal transform coefficient data obtained by performing one-dimensional orthogonal transform on the two-dimensional orthogonal transform coefficient data using the one-dimensional orthogonal transform unit.

An image processing method of an image processing apparatus, the method comprising:

• individually decoding a plurality of two-dimensional orthogonal transform encoded data obtained by performing a two-dimensional orthogonal transform on a plurality of images;
• performing a one-dimensional orthogonal transform in a direction in which the images are arranged on a plurality of two-dimensional orthogonal transform coefficient data obtained by decoding the plurality of two-dimensional orthogonal transform encoded data;
• and
• encoding three-dimensional orthogonal transform coefficient data obtained by performing one-dimensional orthogonal transform on the two-dimensional orthogonal transform coefficient data.