Wavelet processing apparatus and wavelet processing method

A wavelet processing apparatus comprising:

• a readout block for reading out data in unit of a region obtained by decomposing a compression image data having subjected to a wavelet transform into a plurality of regions while adding to the data within the region excess data of a predetermined data number outside the region;
• a line-based reverse wavelet transform block for performing a line-based reverse wavelet transform on the data read out at the readout block while decomposing the band of the data in a plurality of decomposition levels;
• and
• a data extraction block for extracting the data that has been subjected to the line-based reverse wavelet transform at said line-based wavelet transform block in a predetermined format to reproduce an image.

A wavelet processing apparatus comprising:

• a readout block for reading out data in unit of a region obtained by decomposing a compression image data having subjected to a wavelet transform into a plurality of regions while reading out excess data of a predetermined data number outside the region on either one side from a line memory;
• a line-based reverse wavelet transform block for performing a line-based reverse wavelet transform on the data read out at said readout block;
• and
• a data extraction block for extracting the data that has been subjected to the line-based reverse wavelet transform at said line-based wavelet transform block in a predetermined format to reproduce an image, and storing a predetermined data number of data on the other end of said region into said line memory.

A wavelet processing method comprising:

• a first step of reading out data in unit of a region obtained by decomposing an image into a plurality of regions while adding to the data within the region excess data of a predetermined data number outside the region;
• a second step of performing a line-based wavelet transform on the data read out at said first step while decomposing the band of the data in a plurality of decomposition levels;
• and
• a third step of extracting the data that has been subjected to the line-based wavelet transform at said second step in a predetermined format.

A wavelet processing method comprising:

• a first step of reading out data in unit of a region obtained by decomposing a compression image data having subjected to a wavelet transform into a plurality of regions while adding to the data within the region excess data of a predetermined data number outside the region;
• a second step of performing a line-based reverse wavelet transform on the data read out at said first step;
• and
• a third step of extracting the data that has been subjected to the line-based reverse wavelet transform at said second step in a predetermined format to reproduce an image.

A wavelet processing method comprising:

• a first step of reading out data in unit of a region obtained by decomposing a compression image data having subjected to a wavelet transform into a plurality of regions while reading out excess data of a predetermined data number outside the region on either one side that has been stored;
• a second step of performing a line-based reverse wavelet transform on the data read out at said first step;
• and
• a third step of extracting the data that has been subjected to the line-based reverse wavelet transform at said second step in a predetermined format to reproduce an image, and storing a predetermined data number of data on the other end of said region for said first step.