JP2006327155A5

JP2006327155A5 -

Info

Publication number: JP2006327155A5
Application number: JP2005157609A
Authority: JP
Filing date: 2005-05-30
Publication date: 2008-07-10
Anticipated expiration: 2025-05-30

Claims

An image processing apparatus that executes processing on input image data,
Input means for inputting image data;
An output means for outputting image data;
A first conversion unit that divides raster image data into blocks each having a set block size and performs vectorization processing on each block, thereby converting into block vector image data;
Storage means for storing block vector image data;
Expansion means for expanding block vector image data into raster image data;
The raster image data input from the input means is converted into block vector image data by the first conversion means, the converted block vector image data is stored in the storage means, and the blocks stored in the storage means Image data transfer control means for controlling transfer of image data to be processed in the apparatus so that raster image data obtained by developing vector image data by the developing means is output from the output means;
Setting means for setting a block size for dividing the object in the processing target image data into blocks based on the size of the object in the processing target image data when executing the first conversion unit; An image processing apparatus.

The image processing apparatus according to claim 1, wherein the setting unit sets a block size of a block including the object to be processed to a block size that divides the object in the image data to be processed into blocks. .

The image processing apparatus according to claim 2, wherein the setting unit resets a block size smaller than the block size when a block having the block size once set is larger than a predetermined size.

Further comprising second conversion means for converting the vector image data into block vector image data based on the size of the object in the vector image data;
2. The image according to claim 1, wherein when the image data input from the input unit is vector image data, the image data transfer control unit causes the second conversion unit to convert the image data to block vector image data. 3. Processing equipment.

A third converting means for converting the block vector image data for one page into page vector image data indicating the entire page;
The image data transfer control means includes:
When it is determined that the format of the image data to be output from the output unit is a raster image data format, raster image data obtained by executing the expansion unit on the block vector image data stored in the storage unit Is output from the output means,
When it is determined that the format of the image data to be output from the output means is a vector image data format, a page obtained by executing the third conversion means on the block vector image data stored in the storage means 5. The image processing apparatus according to claim 1, wherein transfer of image data to be processed in the apparatus is controlled so that vector image data is output from the output unit.

When the size of the object in the vector image data exceeds the upper limit size of the block size that divides the object into blocks, the second conversion means adds the block size block that does not exceed the upper limit size to the block size block. The image processing apparatus according to claim 4, wherein the vector image data is converted into the block vector image data by dividing an object.

The image data transfer control means is connected to each means via a bus,
The image processing apparatus according to claim 1, further comprising: a bus arbitration unit that executes adjustment control of the bus used for transferring the processing target image data according to a format of the processing target image data.

The first conversion unit or the second conversion unit prohibits generation of corresponding block vector image data when an object is not included in a block obtained by dividing image data to be processed. Item 5. The image processing apparatus according to Item 4.

2. The image according to claim 1, wherein the setting unit sets a block size for dividing the at least two objects into blocks based on a ratio of overlapping portions of blocks including each of at least two objects. Processing equipment.

The image processing apparatus according to claim 9, wherein the setting unit sets a block size to be divided into blocks including the at least two objects when the ratio of the overlapping portion is larger than a predetermined value.

The image processing apparatus according to claim 9, wherein the setting unit sets a block size to be divided into blocks each including the at least two objects when the ratio of the overlapping portion is less than a predetermined value. .

The setting means sets a block size to be divided into a block including the overlapping portion and a block including each of the at least two objects other than the overlapping portion when the ratio of the overlapping portion is less than a predetermined value. The image processing apparatus according to claim 9.

A control method of an image processing apparatus for executing processing on input image data,
A first conversion step of dividing raster image data into blocks each having a set block size and performing vectorization processing on each block to convert the image into block vector image data;
A storage step of storing block vector image data in a storage means;
A development process of developing block vector image data into raster image data;
The input raster image data is converted into block vector image data in the first conversion step, the converted block vector image data is stored in the storage means, and the block vector image data stored in the storage means is stored. When executing the image data transfer control step for controlling the transfer of the image data to be processed in the apparatus and the first conversion step so that raster image data obtained by the expansion step is output from the output unit And a setting step for setting a block size for dividing the object in the image data to be processed into blocks based on the size of the object in the image data to be processed. Method.

A program that realizes control of an image processing apparatus that causes a computer to execute processing on input image data,
A first conversion step of dividing raster image data into blocks each having a set block size and performing vectorization processing on each block to convert the image into block vector image data;
A storage step of storing block vector image data in a storage means;
A development process of developing block vector image data into raster image data;
The input raster image data is converted into block vector image data in the first conversion step, the converted block vector image data is stored in the storage means, and the block vector image data stored in the storage means is stored. Based on the size of the object in the image data to be processed when executing the control step for controlling the raster image data obtained by the development step to be output from the output unit and the first conversion step. And a setting step for setting a block size for dividing an object in the image data to be processed into blocks.