Data processing apparatus, image processing apparatus, and method therefor

A data processing method in a data processing apparatus including a storage unit which stores data and a plurality of data processors which process the data, comprising:

• a first activation control step of activating a predetermined data processor of the plurality of data processors;
• an access control step of controlling access of the activated predetermined data processor to the storage unit;
• a data processing step of causing the predetermined data processor to perform a series of processing of reading out the data from the storage unit, performing data processing, and writing the processed data in the storage unit;
• an acceptance step of accepting an interrupt request signal which the data processor outputs when finishing writing data in the storage unit;
• and
• an second activation control step of activating a next data processor on the basis of the interrupt request signal.

A program for causing a computer including a storage unit which stores data and a plurality of data processors which process the data to execute:

• a first activation control step of activating a predetermined data processor of the plurality of data processors;
• an access control step of controlling access of the activated predetermined data processor to the storage unit;
• a data processing step of causing the predetermined data processor to perform a series of processing of reading out the data from the storage unit, performing data processing, and writing the processed data in the storage unit;
• an acceptance step of accepting an interrupt request signal which the data processor outputs when finishing writing data in the storage unit;
• and
• a second activation control step of activating a next data processor on the basis of the interrupt request signal.

An image processing apparatus comprising:

• storage means for storing image data;
• a plurality of image processing means for performing a series of processing of reading out the image data from said storage means, performing predetermined image processing, and writing the processed image data in said storage means;
• activation control means for activating predetermined image processing means of said plurality of image processing means;
• and
• access control means for controlling access of the activated predetermined image processing means to said storage means, wherein
• each of said image processing means comprises
• first address generating means for generating an address for reading out image data from said storage means,
• first data holding means for storing the image data read out from said storage means in correspondence with the address,
• at least one second image processing means for processing the image data,
• second data holding means for storing output data processed by said second image processing means on a last stage,
• second address generating means for generating an address for writing the output data in said storage means, and
• second access control means for giving said access control means a request to access said storage means when image data can be stored in said first data holding means or output data can be output from said second data holding means.

An image processing method in an image processing apparatus including a storage unit which stores image data and a plurality of image processors which process the image data, comprising:

• the first activation control step of activating a predetermined image processor of the plurality of image processors;
• the access control step of controlling access of the activated predetermined image processor to the storage unit;
• the image processing step of causing the predetermined image processor to perform a series of processing of reading out the image data from the storage unit, performing image processing, and writing the processed image data in the storage unit;
• the acceptance step of accepting an interrupt request signal which the image processor outputs when finishing writing image data in the storage unit;
• and
• the second activation control step of activating a next image processor on the basis of the interrupt request signal, wherein
• the image processing step comprises
• the first address generating step of generating an address for reading out image data from the storage unit,
• the first access control step of requesting access to the storage unit when the image data can be acquired,
• the data acquisition step of acquiring the image data read out from the storage unit in correspondence with the address,
• at least one second image processing step of processing the image data,
• the second address generating step of generating an address for writing the image data processed in the second image processing step on a last stage in the storage unit,
• the second access control step of requesting access to the storage unit when the image data can be output, and
• the output step of outputting the image data corresponding to the address to the storage unit.

A program for causing a computer including a storage unit which stores image data and a plurality of image processors which process the image data to execute:

• the first activation control step of activating a predetermined image processor of the plurality of image processors;
• the access control step of controlling access of the activated predetermined image processor to the storage unit;
• the image processing step of causing the predetermined image processor to perform a series of processing of reading out the image data from the storage unit, performing image processing, and writing the processed image data in the storage unit;
• the acceptance step of accepting an interrupt request signal which the image processor outputs when finishing writing image data in the storage unit;
• and
• the second activation control step of activating a next image processor on the basis of the interrupt request signal, characterized in that
• the image processing step comprises
• the first address generating step of generating an address for reading out image data from the storage unit,
• the first access control step of requesting access to the storage unit when the image data can be acquired,
• the data acquisition step of acquiring the image data read out from the storage unit in correspondence with the address,
• at least one second image processing step of processing the image data,
• the second address generating step of generating an address for writing the image data processed in the second image processing step on a last stage in the storage unit,
• the second access control step of requesting access to the storage unit when the image data can be output, and
• the output step of outputting the image data corresponding to the address to the storage unit.

An image processing apparatus comprising image processing means for executing image processing for image data for each predetermined block, further comprising:

• execution information input means for inputting execution information for determining whether to execute image processing for each block of the image data;
• and
• determination means for determining, by using the execution information, whether to execute image processing for the image data for each block, wherein
• said image processing means executes image processing for a block of the image data for which it is determined that image processing is to be executed.

An image processing apparatus comprising:

• condition setting means for setting a condition for image processing of image data;
• designation means for designating a range in which image processing is to be executed for the image data;
• resizing means for converting the image data into data having a predetermined size;
• permutation means for permutating positions of blocks constituting the image data to predetermined positions;
• and
• recording means for recording image data after image processing.

An image processing method of executing image processing for image data for each predetermined block, comprising:

• an execution information input step of inputting execution information for determining whether to execute image processing for each block of the image data;
• a determination step of determining, by using the execution information, whether to execute image processing for the image data for each block;
• and
• an image processing step of executing image processing for a block of the image data for which it is determined that image processing is to be executed.

An image processing method comprising:

• a condition setting step of setting a condition for image processing of image data;
• a designation step of designating a range in which image processing is to be executed for the image data;
• a resizing step of converting the image data into data having a predetermined size;
• a permutation step of permutating positions of blocks constituting the image data to predetermined positions;
• and
• a recording step of causing recording means to record image data after image processing.

A computer program for controlling an image processing apparatus for executing image processing for image data for each predetermined block, and executing:

• an execution information input step of inputting execution information for determining whether to execute image processing for each block of the image data;
• a determination step of determining, by using the execution information, whether to execute image processing for the image data for each block;
• and
• an image processing step of executing image processing for a block of the image data for which it is determined that image processing is to be executed.

A computer program for causing a computer to execute:

• a condition setting step of setting a condition for image processing of image data;
• a designation step of designating a range in which image processing is to be executed for the image data;
• a resizing step of converting the image data into data having a predetermined size;
• a permutation step of permutating positions of blocks constituting the image data to predetermined positions;
• and
• a recording step of causing recording means to record image data after image processing.

An image processing apparatus comprising:

• block image processing means for executing image processing for image data, which is input on a predetermined block basis, on the predetermined block basis;
• conversion means for rasterizing the image data processed on the predetermined block basis;
• and
• pixel image processing means for executing image processing on a pixel basis by using the rasterized image data, wherein
• image processing to be executed for input image data is performed in two stages including said block image processing means and said pixel image processing means.

An image processing apparatus comprising:

• block decoding means for decoding block-coded data into image data;
• block image processing means for performing image processing for the decoded image data on a processing block basis in the block coding;
• conversion means for rasterizing the image data subjected to image processing on the processing block basis;
• and
• pixel image processing means for executing image processing on a pixel basis by using the rasterized image data, wherein
• image processing to be executed for input image data is performed in two stages including said block image processing means and said pixel image processing means.

An image processing method comprising:

• a block image processing step of executing image processing for image data, which is input on a predetermined block basis, on the predetermined block basis;
• a conversion step of rasterizing the image data processed on the predetermined block basis;
• and
• a pixel image processing step of executing image processing on a pixel basis by using the rasterized image data, wherein
• an image processing to be executed for input image data is performed in two stages including the block image processing step and the pixel image processing step.

An image processing method comprising:

• a block decoding step of decoding block-coded data into image data;
• a block image processing step of performing image processing for the decoded image data on a processing block basis in the block coding;
• a conversion step of rasterizing the image data subjected to image processing on the processing block basis;
• and
• a pixel image processing step of executing image processing on a pixel basis by using the rasterized image data, wherein
• an image processing to be executed for input image data is performed in two stages including the block image processing means and the pixel image processing means.

A computer program for causing a computer to execute:

• a block image processing step of executing image processing for image data, which is input on a predetermined block basis, on the predetermined block basis;
• a conversion step of rasterizing the image data processed on the predetermined block basis;
• and
• a pixel image processing step of executing image processing on a pixel basis by using the rasterized image data, wherein
• an image processing to be executed for input image data is performed in two stages including the block image processing step and the pixel image processing step.

A computer program for causing a computer to execute:

• a block decoding step of decoding block-coded data into image data;
• a block image processing step of performing image processing for the decoded image data on a processing block basis in the block coding;
• a conversion step of rasterizing the image data subjected to image processing on the processing block basis;
• and
• a pixel image processing step of executing image processing on a pixel basis by using the rasterized image data, wherein
• an image processing to be executed for input image data is performed in two stages including the block image processing means and the pixel image processing means.