WO2023287451A1 - Résolution d'impression définie de zone de mise au point - Google Patents

Résolution d'impression définie de zone de mise au point Download PDF

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Publication number
WO2023287451A1
WO2023287451A1 PCT/US2021/065291 US2021065291W WO2023287451A1 WO 2023287451 A1 WO2023287451 A1 WO 2023287451A1 US 2021065291 W US2021065291 W US 2021065291W WO 2023287451 A1 WO2023287451 A1 WO 2023287451A1
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WO
WIPO (PCT)
Prior art keywords
area
resolution
print data
roi
printed
Prior art date
Application number
PCT/US2021/065291
Other languages
English (en)
Inventor
Seunghee Oh
Jihyun Yoon
Jungnam Bae
Original Assignee
Hewlett-Packard Development Company, L.P.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hewlett-Packard Development Company, L.P. filed Critical Hewlett-Packard Development Company, L.P.
Publication of WO2023287451A1 publication Critical patent/WO2023287451A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/0035—User-machine interface; Control console
    • H04N1/00405—Output means
    • H04N1/00482—Output means outputting a plurality of job set-up options, e.g. number of copies, paper size or resolution
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/205—Ink jet for printing a discrete number of tones
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/21—Ink jet for multi-colour printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/12—Digital output to print unit, e.g. line printer, chain printer
    • G06F3/1201—Dedicated interfaces to print systems
    • G06F3/1202—Dedicated interfaces to print systems specifically adapted to achieve a particular effect
    • G06F3/1203—Improving or facilitating administration, e.g. print management
    • G06F3/1208—Improving or facilitating administration, e.g. print management resulting in improved quality of the output result, e.g. print layout, colours, workflows, print preview
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/12—Digital output to print unit, e.g. line printer, chain printer
    • G06F3/1201—Dedicated interfaces to print systems
    • G06F3/1202—Dedicated interfaces to print systems specifically adapted to achieve a particular effect
    • G06F3/1211—Improving printing performance
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/12—Digital output to print unit, e.g. line printer, chain printer
    • G06F3/1201—Dedicated interfaces to print systems
    • G06F3/1223—Dedicated interfaces to print systems specifically adapted to use a particular technique
    • G06F3/1237—Print job management
    • G06F3/1241—Dividing a job according to job requirements, e.g. black/white and colour pages, covers and body of books, tabs
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/12—Digital output to print unit, e.g. line printer, chain printer
    • G06F3/1201—Dedicated interfaces to print systems
    • G06F3/1223—Dedicated interfaces to print systems specifically adapted to use a particular technique
    • G06F3/1237—Print job management
    • G06F3/1242—Image or content composition onto a page
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/12—Digital output to print unit, e.g. line printer, chain printer
    • G06F3/1201—Dedicated interfaces to print systems
    • G06F3/1223—Dedicated interfaces to print systems specifically adapted to use a particular technique
    • G06F3/1237—Print job management
    • G06F3/1244—Job translation or job parsing, e.g. page banding
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/12—Digital output to print unit, e.g. line printer, chain printer
    • G06F3/1201—Dedicated interfaces to print systems
    • G06F3/1278—Dedicated interfaces to print systems specifically adapted to adopt a particular infrastructure
    • G06F3/1285—Remote printer device, e.g. being remote from client or server
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/20—Image preprocessing
    • G06V10/25—Determination of region of interest [ROI] or a volume of interest [VOI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/23—Reproducing arrangements
    • H04N1/2307—Circuits or arrangements for the control thereof, e.g. using a programmed control device, according to a measured quantity
    • H04N1/2361—Selecting a particular reproducing device from amongst a plurality of devices, e.g. high or low resolution devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/40068—Modification of image resolution, i.e. determining the values of picture elements at new relative positions

Definitions

  • An image forming apparatus may include an apparatus to print print data generated by a terminal device, such as a computer, on a printing medium such as paper.
  • a terminal device such as a computer
  • Examples of the image forming apparatus may include a copier, a printer, a facsimile, a scanner, or a multi-function peripheral (MFP) device that combines functions thereof through a single apparatus.
  • MFP multi-function peripheral
  • FIG. 1 illustrates a system including an electronic apparatus, an external device, and an image forming apparatus according to an example
  • FIG. 2 illustrates a system including an electronic apparatus and an external device according to an example
  • FIG. 3 is a block diagram illustrating an electronic apparatus according to an example
  • FIG. 4 is a block diagram illustrating an electronic apparatus according to an example
  • FIG. 5A illustrates coordinate information data of a region of interest (ROI) according to an example
  • FIG. 5B illustrates an ROI according to an example
  • FIG. 6 is a diagram illustrating an image set to print an ROI and a remaining area with different resolutions according to an example
  • FIG. 7 illustrates grouping of a plurality of ROIs according to an example
  • FIG. 8A illustrates an image in which an ROI is disposed in a same direction as a feeding direction of a printing medium according to an example
  • FIG. 8B illustrates an image rotated in a direction perpendicular to a feeding direction of a printing medium according to an example
  • FIGS. 9A-9C illustrate a process of adjusting a set resolution area according to an example
  • FIG. 10 illustrates data of resolution and area information according to an example
  • FIG. 11 is a flowchart illustrating a method of setting a resolution of print data according to an example.
  • FIG. 12 is a diagram illustrating instructions stored in a non- transitory computer-readable recording medium according to an example.
  • an element that is described as “connected” with another element may include a case of being directly connected, and also a case of being connected indirectly, for example with another element therebetween. Also, an element that is described as “including” another element may indicate that the element may not exclude another element and may further include additional elements, unless specifically stated otherwise.
  • Each example may be implemented or operated independently, or each example may be implemented or operated in combination.
  • image forming job may refer to any of various jobs (e.g., copying, printing, scanning, or faxing) related to an image, such as forming the image or generating/storing/transmitting an image file
  • job may refer to the image forming job in some examples, and may also refer to a series of processes to perform the image forming job in other examples.
  • print data may refer to data converted into a printable format by the printer. Based on the printer supporting direct printing, the file itself may be print data.
  • image forming apparatus may refer to an apparatus that prints print data generated by a terminal apparatus such as a computer on a recording medium such as paper. Examples of such an image forming apparatus include a copier, a printer, a facsimile, a scanner, a multi-function peripheral (MFP) that combines functions thereof through a single apparatus, or the like.
  • An "external device” may refer to a device to provide information or a service to an image forming apparatus through a network.
  • the external device may be a server, a cloud, an artificial intelligence (Al) cloud (e.g., an Al server), a web server, a host device, a user terminal device, and the like.
  • Al artificial intelligence
  • the server may include, for example, a payment server, a management server, and the like.
  • the service may be provided in one physical server and may be provided in a virtual server (e.g., a cloud server) which may be implemented as a plurality of servers.
  • the "electronic apparatus” may refer to an apparatus capable of setting an internal system by using a password, and may be a personal computer (PC), a notebook computer, a tablet PC, a smart phone, an image forming apparatus, or the like.
  • PC personal computer
  • notebook computer a tablet PC
  • smart phone an image forming apparatus, or the like.
  • the expression “user” as used herein may refer to a person who performs a manipulation related with the image forming job using the image forming apparatus or a device connected to the image forming apparatus in a wired or wireless manner.
  • the expression “manager” as used herein may refer to a person who has an authority to access all the functions and systems of the electronic apparatus. The “manager” and the “user” may refer to the same person.
  • an area of print data such as a region of interest (ROI)
  • ROI region of interest
  • a remaining area may be set to a second resolution, which is lower than the first resolution, thereby efficiently printing the image and reducing an amount of toner used as compared to a situation in which the ROI and remaining areas are printed using the first resolution.
  • FIG. 1 illustrates a system including an electronic apparatus, an external device, and an image forming apparatus according to an example.
  • a system may include an electronic apparatus 100, an external device 200, and an image forming apparatus 300.
  • the electronic apparatus 100 may generate print data by a user.
  • the electronic apparatus 100 may be a user terminal device such as a smartphone, a desktop computer, a laptop computer, a tablet PC, and the like.
  • the print data may include image, text, and the like.
  • the electronic apparatus 100 may transmit the generated print data to the external device 200.
  • the external device 200 may extract an object from the received print data.
  • the external device 200 may include an image processing process or a vision service process trained by machine learning.
  • the external device 200 may identify an image area from print data using an image processing process or a vision service process trained by machine learning.
  • the external device 200 may recognize an object from the identified image area and detect the ROI included in the object.
  • the object may include a person, an animal, an article, etc. included in the image area
  • the ROI may include a person's eyes, nose, mouth, and the like.
  • the external device 200 may detect the ROI as a rectangular shape and may extract left upper coordinate information and right lower coordinate information of the rectangular area.
  • the external device 200 may transmit coordinate information of the extracted ROI to the electronic apparatus 100.
  • the electronic apparatus 100 may detect a focus area including the ROI based on coordinate information of the ROI received from the external device 200.
  • the focus area may refer to an area of the print data to be printed at a relatively high resolution.
  • the printing medium may be supplied in a vertical direction, which is a sub-scanning direction, to the image forming apparatus 300.
  • the image forming apparatus 300 may print data in a horizontal direction, which is a main scanning direction, on the supplied printing medium.
  • the image forming apparatus 300 may print one or a plurality of horizontal lines (or horizontal areas) with the same resolution.
  • the image forming apparatus 300 may print the left and right areas of the ROI at the same resolution as the ROI on the basis of the horizontal direction.
  • the focus area may refer to an area including both the left and right horizontal areas of the ROI. Based on the ROI being included in the main scanning direction on the printing medium, the ROI may be included in the focus area.
  • the electronic apparatus 100 may set the focus area to a first resolution, and the remaining area to a second resolution that is lower than the first resolution.
  • the first resolution may be described as a “high” resolution and the second resolution may be described as a “low” resolution for sake of convenience.
  • the corresponding line may be set to be outputted in high resolution, or, based on there being no ROI in the main scanning direction, the corresponding line may be set to be outputted at a lower resolution than the focus area.
  • the electronic apparatus 100 may transmit, to the image forming apparatus 300, print data including information on a focus area set at a high resolution and information on a remaining area set at a low resolution.
  • the electronic apparatus 100 may display an image in which the focus area is set at a high resolution and the remaining area is set at a low resolution.
  • the electronic apparatus 100 may change the focus area or the remaining area according to a user input.
  • the electronic apparatus 100 may set the changed focus area at a high resolution or set the changed remaining area at a low resolution.
  • the image forming apparatus 300 may print the focus area at a set high resolution based on the information on the focus area, the information on the remaining area, resolution setting information, and the print data, and may print the remaining area at a set low resolution.
  • the system may not include a user terminal device, and the image forming apparatus may be an electronic apparatus.
  • FIG. 2 illustrates a system including an electronic apparatus and an external device according to an example.
  • the system may include the electronic apparatus 100 and the external device 200.
  • the electronic apparatus 100 may be an image forming apparatus.
  • the electronic apparatus 100 may scan a printing medium including an image to obtain print data.
  • the electronic apparatus 100 may transmit print data to the external device 200.
  • the external device 200 may detect an ROI from the print data and transmit coordinate information of the ROI to the electronic apparatus 100.
  • the electronic apparatus 100 may detect a focus area including the ROI based on coordinate information of the ROI received from the external device 200.
  • the electronic apparatus 100 may set a focus area at a high resolution and set the remaining area at a low resolution, and perform a printing process.
  • FIG. 3 is a block diagram illustrating an electronic apparatus according to an example.
  • the electronic apparatus 100 may include a communication interface 110 and a processor 120.
  • the communication interface 110 may perform communication with an external device.
  • the external device may include a server, an Al cloud, an image forming apparatus, or the like.
  • the communication interface 110 may connect the electronic apparatus 100 with the external device via a local area network (LAN), an Internet network, and/or a connection through a universal serial bus (USB) port or wireless communication port (e.g., WiFi 802.11a/b/g/n, Near Field Communication (NFC), Bluetooth, etc.).
  • the communication interface 110 may be referred to as a communicator, a communication module, a communication device, a transceiver, etc.
  • the communication interface 110 may transmit print data to an external device and may receive coordinate information of an ROI of an object included in the print data from an external device.
  • the processor 120 may control an operation of the electronic apparatus 100.
  • the processor 120 may control the communication interface 110 to transmit print data to an external device and to receive coordinate information of the ROI from an external device.
  • the processor 120 may detect a focus area including the ROI based on the received coordinate information of the ROI.
  • the ROI may be a plurality of areas. Based on there being a plurality of ROI areas, the processor 120 may group the plurality of ROI areas into one group, and detect one group as a focus area.
  • the processor 120 may detect a focus area based on a printing direction of the image forming apparatus. If the focus area is arranged side by side in the same direction as a feeding direction in which the printing medium is fed to the image forming apparatus, the processor 120 may set the printing direction by rotating the print data 90 degrees.
  • the processor 120 may set a focus area of the print data to be printed at a set resolution and set the remaining areas at a resolution lower than the set resolution.
  • the set resolution may be relatively high and the resolution lower than the set resolution may refer to a low resolution.
  • the processor 120 may control the communication interface 110 to transmit print data including an area to be printed at a set resolution, and an area to be printed at a resolution lower than the set resolution.
  • FIG. 4 is a block diagram illustrating an electronic apparatus according to an example.
  • the electronic apparatus 100 may include the communication interface 110, the processor 120, a display 130, an input interface 140, a memory 150, a speaker 160, and a printer engine 170.
  • the communication interface 110 performs the same function as the communication interface 110 of FIG. 1, a description thereof will be omitted. Since the processor 120 performs a similar function with the processor 120 of FIG. 1, the contents described in FIG. 1 are not duplicated, and the contents related to the components added in FIG. 2 will be described below.
  • the display 130 may display a user interface window to receive a function supported by the electronic apparatus 100.
  • the display 130 may display a user interface window to receive various functions provided by the electronic apparatus 100.
  • the display 130 may be a monitor, such as a liquid crystal display (LCD), a cathode ray tube (CRT), a light emitting diode (LED) display, an organic LED (OLED) display, or the like, and may be implemented as a touch screen capable of performing functions of the input interface 140 at the same time.
  • the display 130 may display print data including an area to be printed at a set resolution and an area to be printed at a resolution lower than the set resolution.
  • the display 130 may display print data including a focus area for printing with high resolution and a remaining area for printing with a low resolution.
  • the display 130 may change the focus area or the remaining area according to a user input.
  • the input interface 140 may receive a function selection and a control command for a corresponding function from a user.
  • the function may include a printing function, a copy function, a scan function, a fax transmission function, and the like.
  • the input interface 140 may be referred to as an input unit, an input module, an input device, and the like.
  • the input interface 140 may receive a command to change the focus area or the remaining area.
  • the memory 150 may store at least one instruction regarding the electronic apparatus 100.
  • the memory 150 may store various programs (e.g., machine readable instructions) to operate the electronic apparatus 100 according to various examples.
  • the memory 150 may store information about a size of the memory for the function enabled in the electronic apparatus 100.
  • the memory 150 may store print data, coordinate information of an ROI, information of the focus area, information on the remaining area, resolution information, and the like.
  • the speaker 160 may output state information of the electronic apparatus 100 as sound. For example, if the electronic apparatus 100 is in an error state, a sound corresponding to an error state may be output. Alternatively, the speaker 160 may output voice data converted into voice or voice data of the audio format.
  • the electronic apparatus 100 may include a printer engine 170.
  • the printer engine 170 may form an image.
  • the printer engine 170 may print a print image generated by the processor 120 on a printing medium.
  • the printer engine 170 may perform printing in an electrophotographic manner, an inkjet manner, and the like.
  • the printer engine 170 may be a mono print engine that prints one color, and may be a color printer engine capable of color printing.
  • FIG. 5A illustrates coordinate information data of an ROI according to an example
  • FIG. 5B illustrates an ROI according to an example.
  • the external device may use a machine learning process to detect an ROI in an object.
  • the external device may detect the ROI in a square shape.
  • the external device may extract coordinate information of the ROI identified in the form of a square.
  • the external device may transmit coordinate information of the extracted ROI to an electronic apparatus.
  • the ROI coordinate information may include a value 11 for x, y, w, and h.
  • Flere, x,y may be upper left coordinates of the ROI.
  • Flere, w, h may refer to a width and a height based on the upper left coordinates. That is, as shown in FIG. 5B, (x,y) may refer to the upper left coordinates of the ROI, and (x+w, y+h) may refer to lower right coordinates of the ROI.
  • the electronic apparatus may detect the coordinate information of the ROI based on the value 11 for x, y, w, h received from the external device.
  • FIG. 6 is a diagram illustrating an image set to print an ROI and a remaining area with different resolutions according to an example.
  • An electronic apparatus may transmit the print data including the image to an external device, and the external device may transmit coordinate information for an ROI 21 to the electronic apparatus.
  • the external device may transmit coordinate information for the object together (e.g., an upper left coordinate of the ROI and a width and a height based on the upper left coordinate).
  • the electronic apparatus may detect the ROI 21 based on the coordinate information for the received ROI 21.
  • the electronic apparatus may detect a focus area 23 including the ROI.
  • the image forming apparatus may receive a printing medium in a vertical direction and print at least one line in a horizontal direction. Accordingly, the focus area 23 may be the same area as the ROI 21.
  • the electronic apparatus may set the focus area 23 to an area to be printed at a set resolution and set the remaining area to an area to be printed at a resolution lower than the set resolution.
  • the electronic apparatus may set the focus area to the area to be printed at high resolution and set the remaining area as an area to be printed at a low resolution.
  • the electronic apparatus may set the focus area to a resolution of a 4800 c 1200 DPI (dots per inch) and set the remaining area at a resolution of 1200 c 1200 DPI.
  • FIG. 7 illustrates grouping of a plurality of ROIs according to an example.
  • the external device may transmit coordinate information for the individual ROIs 31 , 32, 33, and 34 to the electronic apparatus.
  • the electronic apparatus may detect the individual ROI 31, 32, 33, and 34 based on the coordinate information of the individual ROIs.
  • the image forming apparatus may perform printing in the horizontal direction of the printing medium. Accordingly, the image forming apparatus may simultaneously print areas of the individual ROIs 31, 32, 33, and 34.
  • the electronic apparatus may detect a focus area based on a printing direction.
  • the electronic apparatus may group the individual ROIs 31 , 32, 33, and 34 located in the same line area into one group.
  • the electronic apparatus may detect one group into a focus area 30.
  • the electronic apparatus may detect the widest area including all of the individual ROIs 31 , 32, 33, and 34 as the focus area 30.
  • the electronic apparatus may set the identified focus area 30 to a high-resolution printing area.
  • FIG. 8A illustrates an image in which an ROI is disposed in a same direction as a feeding direction of a printing medium according to an example
  • FIG. 8B illustrates an image rotated in a direction perpendicular to a feeding direction of a printing medium according to an example.
  • a printing medium may be supplied to an image forming apparatus in a direction of the arrow.
  • the image forming apparatus may simultaneously print lines (or areas) in the vertical direction in the direction of the arrow.
  • the electronic apparatus may detect a focus area 41 based on coordinate information of an ROI received from an external device.
  • the focus area 41 may be an area in which a plurality of individual ROIs are grouped.
  • the direction of placement of the ROI may be the same direction as or perpendicular to the printing direction of the printing medium. If the image forming apparatus prints the print data shown in FIG. 8A, all areas of the print data may be printed at a high resolution. If there are a plurality of ROIs in the feeding direction (i.e. , the sub-scanning direction) of the printing medium, each ROI is arranged at a different main scanning location, so that there are a plurality of focus areas having a high resolution.
  • the electronic apparatus may rotate the print data by 90 degrees so that the feed direction of the printing medium is rotated 90 degrees in consideration of the focus area 41.
  • the ROI may be arranged in the main scanning direction and one focus area may be generated.
  • 90-degree rotated print data is shown.
  • the focus area 41 may be arranged in the same direction or in a direction perpendicular to the feeding direction of the printing medium.
  • the electronic apparatus may transmit 90-degree rotated information together with the print data to the image forming apparatus.
  • the image forming apparatus may print the focus area 41 at a high resolution and print the remaining area at a low resolution.
  • the electronic apparatus may change the focus area to be printed at a high resolution or the remaining area to be printed at a low resolution according to a user's command.
  • FIGS. 9Ato 9C illustrate a process of adjusting a set resolution area according to an example.
  • the electronic apparatus may display a print option menu.
  • the print option menu may include a menu (e.g., dynamic DPI) capable of dynamically changing resolution.
  • the electronic apparatus may display a preview image of print data including a focus area to be printed at a high resolution and a remaining area to be printed at a low resolution in one area. A user may select a menu that may dynamically change resolution.
  • the electronic apparatus may display a menu for selecting an ROI.
  • the electronic apparatus may select a character area according to a user command from among a plurality of ROIs.
  • the electronic apparatus may change the focus area according to the user's command 51.
  • the electronic apparatus may transmit information about the changed focus area and the remaining region to an image forming apparatus.
  • FIG. 10 illustrates data of resolution and area information according to an example.
  • a resolution of an area 1 is 300 DPI, and the area 1 may be 0-50 lines, 70-100 lines.
  • a resolution of an area 2 is 1200 DPI and the area 2 may be 50-70 lines.
  • a resolution of an area 3 may be 600 DPI and may be 100 lines or less.
  • An electronic apparatus may transmit data of resolution and area information to an image forming apparatus, and the image forming apparatus may print the print data by changing the resolution based on the print data, the resolution, and the area information.
  • FIG. 11 is a flowchart illustrating a method of setting a resolution of print data according to an example.
  • an electronic apparatus may transmit print data to an external device and receive ROI coordinate information of an object in operation S1110.
  • the external device may detect the ROI using an image processing process or a vision service process trained by machine learning, and extract coordinate information.
  • the electronic apparatus may detect a focus area including the ROI based on the ROI coordinate information in operation S1120. For example, if there are a plurality of ROIs, the electronic apparatus may group the plurality of ROIs into one group and detect one group as a focus area. The electronic apparatus may detect a focus area based on a direction of printing in the image forming apparatus.
  • the electronic apparatus may set a focus area of the print data to an area to be printed at a set resolution and set the remaining area to an area to be printed at a resolution lower than the set resolution in operation S1130.
  • the electronic apparatus may set the focus area to a high resolution area and set the remaining area as an area to be printed at a low resolution. For example, if the focus area is arranged side by side in the same direction as a feeding direction in which the printing medium is fed to the image forming apparatus, the electronic apparatus may set the printing direction by rotating the print data 90 degrees.
  • the electronic apparatus may change the focus area according to a user command. For example, the electronic apparatus may display print data including an area for printing at a set resolution and an area for printing at a resolution lower than the set resolution.
  • the electronic apparatus may change an area to be printed at a set resolution or an area to be printed at a resolution lower than a set resolution based on a user's selection.
  • the electronic apparatus may transmit print data including an area to be printed at a set resolution and an area to be printed at a resolution lower than the set resolution to the image forming apparatus.
  • the electronic apparatus may print data based on print data including resolution information and printing area information.
  • FIG. 12 is a diagram illustrating instructions stored in a non- transitory computer-readable recording medium according to an example.
  • an example resolution setting process of print data performed in an electronic apparatus as described above may be in a form of a non-transitory computer-readable storage media for storing instructions or data executable by a computer or processor.
  • a non-transitory computer-readable recording medium 1200 may store instructions related to an example operation of an electronic apparatus described above.
  • the non-transitory computer-readable recording medium 1200 may include instructions 1210 for transmitting print data to an external device and receiving coordinate information of an ROI of an object included in the print data from the external device, instructions 1220 for detecting a focus area including the ROI based on the coordinate information of the ROI, and instructions 1230 for setting the focus area of the print data to an area to be printed at a set resolution, and setting a remaining area to an area to be printed at a resolution lower than the set resolution.
  • Such non-transitory computer-readable recording media may include read-only memory (ROM), random-access memory (RAM), flash memory, CD-ROMs, CD-Rs, CD+Rs, CD-RWs, CD+RWs, DVD-ROMs, DVD-Rs, DVD+Rs, DVD-RWs, DVD+RWs, DVD-RAMs, BD-ROMs, BD-Rs, BD-R LTHs, BD-REs, magnetic tapes, floppy disks, magneto-optical data storage device, optical data storage devices, hard disks, solid-state disks (SSDs), and can be any device capable of storing machine readable instructions, associated data, datafiles, data structures, and providing machine readable instructions, associated data, data files, and data structure to the processor or computer so that the processor or computer can execute instructions.
  • ROM read-only memory
  • RAM random-access memory
  • flash memory CD-ROMs, CD-Rs, CD+Rs, CD-RWs, CD+RWs,

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • General Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Image Analysis (AREA)

Abstract

Un appareil électronique donné à titre d'exemple comprend une interface de communication et un processeur. Le processeur doit transmettre des données d'impression à un dispositif externe à l'aide de l'interface de communication et recevoir des informations de coordonnées d'une région d'intérêt (ROI) d'un objet compris dans les données d'impression provenant du dispositif externe, détecte une zone de mise au point comprenant la ROI sur la base des informations de coordonnées de la ROI, définit la zone de mise au point, parmi les données d'impression, comme zone à imprimer à une résolution définie, et définit une zone restante comme zone à imprimer à une résolution inférieure à la résolution définie.
PCT/US2021/065291 2021-07-12 2021-12-28 Résolution d'impression définie de zone de mise au point WO2023287451A1 (fr)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003219346A (ja) * 2002-01-17 2003-07-31 Seiko Epson Corp 画像データ生成装置、画像表示装置、画像データ生成方法、画像表示方法、画像データ生成プログラムを記録した媒体、画像表示プログラムを記録した媒体、画像データ生成プログラムおよび画像表示プログラム
JP2003274194A (ja) * 2002-03-14 2003-09-26 Canon Inc 印字システム
US20180361757A1 (en) * 2017-03-03 2018-12-20 Datamax-O'neil Corporation Region-of-interest based print quality optimization
US20200320326A1 (en) * 2017-12-18 2020-10-08 Shanghai United Imaging Healthcare Co., Ltd. Systems and methods for determining scanning parameter in imaging

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003219346A (ja) * 2002-01-17 2003-07-31 Seiko Epson Corp 画像データ生成装置、画像表示装置、画像データ生成方法、画像表示方法、画像データ生成プログラムを記録した媒体、画像表示プログラムを記録した媒体、画像データ生成プログラムおよび画像表示プログラム
JP2003274194A (ja) * 2002-03-14 2003-09-26 Canon Inc 印字システム
US20180361757A1 (en) * 2017-03-03 2018-12-20 Datamax-O'neil Corporation Region-of-interest based print quality optimization
US20200320326A1 (en) * 2017-12-18 2020-10-08 Shanghai United Imaging Healthcare Co., Ltd. Systems and methods for determining scanning parameter in imaging

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