IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD

• US 20190310810A1
• Filed: 04/01/2019
• Published: 10/10/2019
• Est. Priority Date: 04/05/2018
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Mori, Hiroshi
• Granted Patent: US 10,853,005 B2
• Time in Patent Office: Days
• CPC Class Codes: G06F 3/1215 achieving increased printing speed, i.e. reducing the time between printing start and printing end
• CPC Class Codes: G06F 3/1242 Image or content composition onto a page
• CPC Class Codes: G06F 3/1245 by conversion to intermediate or common format
• CPC Class Codes: G06F 3/1247 by conversion to printer ready format
• CPC Class Codes: G06F 3/1248 by printer language recognition, e.g. PDL, PCL, PDF
• CPC Class Codes: G06F 3/1286 via local network
• CPC Class Codes: G06K 15/1849 using an intermediate representation, e.g. a list of graphical primitives
• CPC Class Codes: G06K 15/1851 parted in a plurality of segments per page
• CPC Class Codes: G06K 15/1865 by compressing the rasterized print data

Abstract

An image processing apparatus includes at least one of one or more processors configured to implement instructions stored in a memory device and an integrated circuit that execute a first acquiring task of acquiring data of a first object from a first memory by designating an address in the first memory, a second acquiring task of acquiring data of a second object from a second memory by a first-in first-out (FIFO) scheme, and a bitmap image generation task of generating a bitmap image including at least the first object and the second object based on the data acquired in the first acquiring task and the data acquired in the second acquiring task.

Claims

1. An apparatus comprising:

at least one of one or more processors configured to implement instructions stored in a memory device and an integrated circuit that executes;

a first acquiring task of acquiring first data of a first object from a first memory by designating an address in the first memory;

a second acquiring task of acquiring second data of a second object from a second memory by a first-in first-out (FIFO) scheme; and

a bitmap image generation task of generating a bitmap image including at least the first object and the second object based on the acquired first data and the acquired second data.

2. The apparatus according to claim 1,

wherein the at least one of one or more processors and the integrated circuit further executes:

an intermediate data generation task of generating intermediate data from a page description language (PDL) data; and

a pixel data generation task of generating pixel data of the first object based on the intermediate data and generating pixel data of the second object based on the intermediate data,

wherein first pixel data including the pixel data of the first object is stored in the first memory and second pixel data including the pixel data of the second object is stored in the second memory, and

wherein, in the bitmap image generation task, the bitmap image is generated by combining the first pixel data acquired from the first memory in the first acquiring task and the second pixel data acquired from the second memory in the second acquiring task.

3. The apparatus according to claim 2,

wherein the at least one of one or more processors and the integrated circuit further executes control so as to compress the pixel data which includes the pixel data of the second object and store the compressed pixel data in a third memory, in a case where a total of sizes of the generated pixel data including the pixel data of the second object exceeds a predetermined size, and

wherein the pixel data including the pixel data of the second object in the third memory is decompressed and is stored in the second memory.

4. The apparatus according to claim 1, wherein, in the second acquiring task, pixel data that is pixel data of the second object and is not used for generation of combined pixel data is acquired from the second memory.

5. The apparatus according to claim 1, wherein the second object is an object having pixels in all regions of a combination target.

6. The apparatus according to claim 1, wherein the second object is an object having a larger amount of data than the first object.

7. The apparatus according to claim 3, wherein the data of the second object is data obtained by decompressing the compressed pixel data and stored in the second memory.

8. The apparatus according to claim 1, further comprising an image forming device configured to form an image on a sheet,

wherein the image forming device forms the image based on a bitmap image output from an output device.

9. The apparatus according to claim 1, further comprising a display device configured to display information,

wherein the display device displays the information based on a bitmap image output from an output device.

10. The apparatus according to claim 1, wherein the second object is a back image object.

11. The apparatus according to claim 10, wherein the back image object is an image object generated by a fallback process.

12. The apparatus according to claim 1, wherein the second object is a copy-forgery-prohibited-pattern image object.

13. The apparatus according to claim 1, wherein the second object is a form image object.

14. The apparatus according to claim 1, wherein the second object is a background image object designated by a document application.

15. A method for an apparatus, comprising:

acquiring first data of a first object from a first memory by designating an address in the first memory;

acquiring second data of a second object from a second memory by a FIFO scheme; and

generating a bitmap image including at least the first object and the second object based on the acquired first data and the acquired second data.

16. The method according to claim 15, further comprising

generating intermediate data from a page description language (PDL) data;

and

generating pixel data of the first object based on the intermediate data and generating pixel data of the second object based on the intermediate data,

wherein first pixel data is stored in the first memory and second pixel data is stored in the second memory, and

wherein the bitmap image is generated by combining the first pixel data in the first acquiring task and the second pixel data in the second acquiring task.

17. The method according to claim 15,

wherein, pixel data that is pixel data of the second object and is not used for generation of combined pixel data is acquired from the second memory.

18. The method according to claim 15, wherein the second object is an object having pixels in all regions of a combination target.

19. The method according to claim 15, wherein the second object is an object having a larger amount of data than the first object.

20. The method according to claim 15, wherein the second object is a back image object.