IMAGE PROCESSING DEVICE

• US 20130094037A1
• Filed: 10/02/2012
• Published: 04/18/2013
• Est. Priority Date: 10/12/2011
• Status: Active Grant

• Current Assignee: Ricoh Company Limited
• Original Assignee: Naoto Shiraishi
• Inventors: SHIRAISHI, Naoto
• Granted Patent: US 8,842,328 B2
• Time in Patent Office: Days
• US Class Current: 358/1.9
• CPC Class Codes: G06K 15/1849 using an intermediate representation, e.g. a list of graphical primitives
• CPC Class Codes: G06K 15/1857 involving parallel processing in the same printing apparatus
• CPC Class Codes: G06T 11/60 Editing figures and text; Combining figures or text

Abstract

An image processing device includes a storage unit capable of storing various kinds of images, a first drawing unit to write a source image after subjected to an image processing in the storage unit, a second drawing unit to generate an image and write the generated image in the storage unit, and an analyzing unit to analyze a page drawing command, so that the analyzing unit controls the first drawing unit in accordance with a first drawing command, if the analyzed command is the first drawing command to instruct the first drawing unit to write the image, and the analyzing unit controls the second drawing unit in accordance with a second drawing command, if the analyzed command is the second drawing command to instruct the second drawing unit to write the image.

Claims

1. An image processing device comprising:

a storage unit capable of storing various kinds of images;

a first drawing unit configured to write a source image in the storage unit, after the source image is subjected to an image processing by an image processing unit;

a second drawing unit configured to generate an image and write the generated image in the storage unit; and

an analyzing unit configured to analyze a page drawing command to obtain a command for any of the first drawing unit and the second drawing unit, so that the analyzing unit controls the first drawing unit in accordance with a first drawing command, if the analyzed command is the first drawing command to instruct the first drawing unit to write the image, and the analyzing unit controls the second drawing unit in accordance with a second drawing command, if the analyzed command is the second drawing command to instruct the second drawing unit to write the image, wherein

while one of the first drawing unit and the second drawing unit writes the image in a first drawing area of the storage unit, if the analyzing unit obtains the drawing command for the other of the first drawing unit and the second drawing unit,

the analyzing unit judges whether the first drawing area overlaps a second drawing area of the storage unit in which the image is written by the other drawing unit in accordance with the drawing command for the other drawing unit, and

if the analyzing unit judges that the first drawing area does not overlap the second drawing unit,

the analyzing unit controls the other drawing unit to start a writing processing to write the image in the storage unit.

2. The image processing device according to claim 1, wherein

the analyzing unit analyzes the page drawing command without waiting a completion of an image writing by one of the first drawing unit and the second drawing unit, and

if the drawing command obtained from an analysis is the drawing command for the other of the first drawing unit and the second drawing unit,

the analyzing unit judges whether the first drawing area overlaps the second drawing area.

3. The image processing device according to claim 1, wherein

if the analyzing unit judges that the first drawing area overlaps the second drawing area,

the analyzing unit controls the other drawing unit to start the writing processing after a completion of an image writing by the one drawing unit.

4. The image processing device according to claim 1, further comprising:

a first setting unit configured to set an image writing parameter for the first drawing unit in accordance with the first drawing command; and

a second setting unit configured to set an image writing parameter for the second drawing unit in accordance with the second drawing command, wherein

the first setting unit judges whether an image writing by the first drawing unit is completed,

if it is judged that the image writing by the first drawing unit is completed, the first setting unit sets the image writing parameter, and

the second setting unit judges whether an image writing by the second drawing unit is completed,

if it is judged that the image writing by the second drawing unit is completed, the second setting unit sets the image writing parameter.

5. The image processing device according to claim 1, wherein

the image processing unit performs at least one of a color conversion processing, a variable magnification processing, and a gradation processing on the source image.

6. The image processing device according to claim 1, wherein

if the second drawing command instructs to draw a triangle image, the analyzing unit determines a square area circumscribed around the triangle image as the second drawing area.

7. The image processing device according to claim 1, wherein

at least one of the first drawing unit and the second drawing unit is configured by hardware independent of the analyzing unit.