Formation of picture image having gradation expressed by fill area and one-line image data
AssigneeCanon Kabushiki Kaisha
InventorShuuji Ozawa
Life of this patent
Estimating the term…
Abstract
A gradation conversion process section converts gradation made up of a plurality of filled regions and filling colors thereof into one-line image data of a filled region into which the plurality of filled regions is unified. A data transmitting process section transmits the one-line image data to a data reception process section. The received one-line image data is interpreted by a PDL interpretation process section, and converted into data which can be interpreted by a rendering process section, and the data is saved on a display list. The rendering process section converts the saved data into gradation made up of a plurality of filled regions and filling colors thereof, and renders the gradation.
Claims8
An image forming system comprising a host device and an image forming device which receives image data from said host device to form an image,
- wherein said host device includes:
- conversion means for converting a gradation which is made up of a plurality of filled regions having different filling colors into one-line image data comprising reduced versions respectively of the filled regions;
- and
- transmission means for transmitting the one-line image data to said image forming device;
- and
- wherein said image forming device includes:
- rendering means;
- receiving means for receiving the one-line image data from said host device;
- and
- interpreting means for interpreting the received image data, generating data that can be interpreted by said rendering means, and saving the data,
- wherein said rendering means converts the saved data into the gradation made up of the plurality of filled regions having different filling colors.
An image forming method in an image forming system having a host device and an image forming device that receives image data from the host device to form an image, the method comprising the steps of,
- in the host device:
- converting a gradation which is made up of a plurality of filled regions having different filling colors into one-line image data comprising reduced versions respectively of the filled regions;
- and
- transmitting the one-line image data to the image forming device;
- and
- in the image forming device:
- rendering the gradation;
- receiving the one-line image data transmitted from the host device in said transmitting step;
- and
- interpreting the received image data, generating data that can be interpreted in said rendering step, and saving the data,
- wherein said rendering step includes converting the saved data into the gradation made up of the plurality of filled regions having different filling colors.
A host device comprising:
- conversion means for converting a gradation which is made up of a plurality of filled regions having different filling colors into one-line image data comprising reduced versions respectively of the filled regions;
- and
- transmission means for transmitting the image data to an image forming device.
An image forming device comprising:
- rendering means;
- means for receiving one-line image data obtained by converting a gradation which is made up of a plurality of filled regions having different filling colors into one-line image data comprising reduced versions respectively of the filled regions;
- and
- means for interpreting the received image data, generating data that can be interpreted by said rendering means, and saving the data,
- wherein said rendering means converts the saved data into the gradation made up of the plurality of filled regions having different filling colors.
A non-transitory, computer-readable storage medium storing instructions capable of being read by a processing device, the instructions causing the processing device to function as:
- rendering means;
- means for receiving one-line image data obtained by converting a gradation which is made up of a plurality of filled regions having different filling colors into one-line image data comprising reduced versions respectively of the filled regions;
- and
- means for interpreting the received image data, generating data that can be interpreted by said rendering means, and saving the data,
- wherein said rendering means converts the saved data into the gradation made up of the plurality of filled regions having different filling colors.
Dependencies are inferred from the claim text.