JP2590301B2 - Image processing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an image processing method for an image processing system including a printer control device and an electronic device.

<Prior Art> In a conventional printer control apparatus, in a system including a printer controller and a device such as a host computer for outputting data to the printer controller, a host computer generates data for image reproduction, and a printer. Had been transferred to the control unit.

<Problems to be Solved by the Invention> Therefore, in the above-described conventional example, it takes a long time to generate data for image reproduction on the host computer side, and other processes cannot be performed during that period, and the efficiency is reduced. More processing could not be performed.

In addition, even if the printer control device has a high function, the function cannot be effectively used, and the performance of the entire system is deteriorated.

Accordingly, an object of the present invention is to provide an image processing method that is versatile and capable of controlling the tone reproduction characteristic flexibly for image data to be printed while reducing the processing load on the electronic device. Aim.

<Means for Solving the Problems> In order to achieve the above object, an image processing method of the present invention is an image processing method for an image processing system including a printer control device and an electronic device, wherein the printer control device Performing a predetermined protocol communication between the electronic device and the electronic device, determining whether data transmission and reception is possible in the predetermined protocol communication, determining a type of a printer that is controlled by the printer control device, After determining that data transmission / reception is possible, the electronic device sends the image data to be printed and the image data to the printer control device so that the printer control device performs printing based on the received image data. Image processing control parameters corresponding to the determined printer type for conversion to image data for printing There are, and transmits the image processing control parameters affecting the tone reproduction characteristics of the printer.

<Embodiment> FIGS. 1-1 and 1-2 are system block diagrams of image transmission processing. Reference numerals 1 and 9 denote color imaging devices, 1a, 1b, and 1c denote CCD sensors for blue (B) colorimetric light, CCD sensors for green (G) colorimetric light, CCD sensors for red (R), and 1f, respectively. An amplification processing unit that controls and amplifies the signal data of the CCD sensor for B 1a, CCD sensor 1b for G, and CCD sensor 1c for R. 1d is an A / D converter that A / D converts the signal of the amplification processing unit 1c. , 1e is the amplification circuit
Controller for controlling 1c, 2,10 for color transmission module, 3,11 for color transmission module controller, 4,12
Is a memory for recording signals sent from the color imaging device, 5 and 13 are parallel-serial converters for parallel-to-serial conversion of RGB signals sent from the memory, and 6 and 14 are switches between image data and control data. selector,
7 is a network that leads to a color transmission module, etc.
8 is a host computer for controlling the network 7, 15 is a black and white imaging device, 16 is a black and white transmission module, 17
Is a memory for recording image data, 18 is a controller of a black and white transmission module, 20 is a data selector that performs the same data switching as 6, 14 and 21, 21 and 28 are color receivers, and 22 and 29 are data inside the color receiver. Selector to select the 2
Reference numerals 3 and 30 denote serial-parallel converters for serial-to-parallel conversion of the signal from the selector 22, and 24 and 31 arithmetically process the RGB signals to produce complementary color signals yellow (Y), magenta (M), cyan (C) and FIG. 4 shows a block diagram of an arithmetic processing section for producing a black signal. Reference numerals 25 and 32 denote memories for storing respective signals, reference numerals 26 and 33 denote color laser beam units for receiving color signals and forming an image on a color recording material, and reference numerals 27 and 27. , 34 is a color receiver controller, 35 is a black and white receiver, 36 is a selector for selecting the image and control signal of the black and white receiver, 39
Is a memory for storing black and white image data, 40 is an LBP unit for recording image data output from the memory 39 on a recording material, and 41 is a controller of the black and white receiving device.

FIG. 1-2 shows a module in the system of FIG.
Each of the modules 16 and 35 is configured to be compatible with another module, and 19 is a module 16 which is a converter for converting a signal output from the memory 17 into parallel-serial.
Numeral 37 denotes a serial / parallel converter for serial-to-parallel conversion of a signal sent from the selector, and numeral 38 denotes an arithmetic processing unit for converting an RGB signal into a luminance signal. The controllers 27, 34, and 41 in the reception module perform processing in the processing unit in accordance with control transmission data from the selectors 22, 29, and 36, for example, γ correction command data transmitted through the lines 7d, 7e, and 7f. The coefficient for gamma correction is switched.

The host computer 8 has a register shown in FIG. 2 and a microcomputer not shown, and controls the transmission process shown in the flowchart of FIG.

After the A / D conversion, each of the image pickup devices 1, 9, and 15 sends a digital signal with a gradation weight of 8 bits per pixel to the transmission modules 2, 10, and 16. The transmission module is 8 for each of B, G, and R for color images.
Bits, a total of 24 bits of data, are converted to serial data, and for black and white, 8 bits are converted to serial data and sent to the line. Therefore, the transmission time for one pixel is only 1/3 that of black and white compared to color. Similarly, the line to the receiving device transmits 24 bits per pixel and 8 bits black and white serially in the case of color.

Before starting transmission and reception of these image data, the system checks and sets the system according to the command signal regarding the availability of the line, the type of the receiving device, and the possibility of operation. Further, the coefficient of the image processing unit 24 is also set by the transmitted command signal. As a result, the connection of the color image pickup device to the monochrome printer is prohibited, and the connection of the monochrome image pickup device to the color printer is prohibited or conditional. When a vidicon camera is connected to a printer, CC
The correction coefficient in the γ-correction processing unit 24-1 in FIG. 4 for making the gradation characteristics linear in the image processing unit 24 of the printer is switched so as to be suitable for each imaging device when connected to a D-type imaging device. . Therefore, a print image with good gradation can be obtained even if the image pickup device is changed while using a common printer.

Note that the color image processing unit 24 is
, The masking coefficient 24-2, the UCR coefficient 24-3, and the desa-matrix pattern 24-4 can be switched and selected. Here, the masking coefficient is, for example, a calculation coefficient for each color signal in a masking process of calculating a three-color signal of B, G, and R to obtain one color signal of B to R. It can correct the impureness of the C developer so that the color image quality is not impaired. The reproduction color tone can be changed by changing the operation coefficient. The UCR coefficient is a ratio of a black component at the time of under color removal (UCR) processing for removing a black component signal from each of the B to R color signals. Black emphasis can be prevented. Changing the ratio changes the degree of inking. The desa-matrix pattern is a pattern of a threshold matrix for reproducing halftones in a binary manner. By changing the pattern, the target density level range for reproducing the gradation can be changed.

The network 7 switches the connection between the imaging device and the printer by the host 8, and can be realized by a known converter.

2 and 3, when the host computer 8 receives a program interrupt signal for a line request from, for example, one of the transmission modules, the host computer 8 jumps to an interrupt routine (step 1), and judges whether or not the requested line is in use (step 1). Step 2) Stop the interrupt routine when in use (Step 3). When not in use, the request line is selected, for example, 7a and 7d, and the host 8 sends an inquiry command to both. The host only needs to select and connect both,
The command can be sent from the transmission module. This inquiry command inquires about the type of the imaging device and the type of the printer, and the transmission module and the receiving printer return type data such as monochrome or color. The response data is written to the data registers AD and BD specified by the registers A and B, respectively (step 5). The data of the registers A and B are the addresses of the transmission module and the receiver (here, 7a and 7d). The above reply data is
Each controller of the transmission module and the receiving device determines the question command and sends it to the host via the line.

Next, the data of the registers AD and BD are compared (step 6). In this case, since the colors are the same, a data request command is sent to both modules (step 7). If they are not the same, turn off the line and return to the main routine. The data request command is used to ask whether image data is already stored in the memory of the module, whether image data still remains in the memory of the receiving unit, that is, whether printing is being performed or not, and the transmission module memory. When the image data is stored in the host 4, a transmission enable signal is sent to the host 8. When the reception memory 25 is empty, the reception enable signal is sent to the host 8. Host can enable both (possible)
When it is determined that a signal has been received (step 8), a transmission start command and a reception start command are sent to each (step 9). The system waits until an enable signal is received.

The transmission module that has received the transmission start command is in memory 4
, R, G, and B are output at 24 (= 3 × 8) bits as described above, serially converted, and transmitted for one line. Selector 6
In this case, the transmission line 7a is switched from the controller side to the parallel-serial converter side.

On the other hand, on the color receiving device 21 side, the controller 27 switches the selector 26 to convert the signal from the line 7d into the serial-parallel converter 23.
Connect to It is converted into parallel RGB signals by the serial-parallel converter 23. The above-mentioned signal is processed by the processing unit 24 to correct the characteristics of the color LBP unit 26. In other words, using the multiplication ROM and addition ROM for high-speed processing,
The black component is extracted by the processing and the color correction is performed by the masking processing.

When the transmission of the color information is completed, a completion signal is sent from the module and the receiving device to the host 8, the host judges this (step 10), cancels the interrupt routine, and returns to the main routine.

When the host selects the 7a, 7f line, if the type command is sent as described above, the module 2, the color response data, and the monochrome response data are returned from the receiving unit 35 as a response. Then, the process returns to the main routine without proceeding to the subsequent steps.

7c with black and white imager and 7d with color printer
When the line is selected, image transmission can be executed in the same manner as in 7a and 7d by exchanging question commands and response data.

In the case of 7c and 7d, when each module determines the transmission start command, the controller 27 of the color printer capable of monochrome printing determines the monochrome command data transmitted from the transmission module, and the controller 27 stores the image in the BK (black) area of the memory. Control to input data.

When the color printer 7e and 7c are selected, transmission is enabled as described above. In this case, the dither performs black processing.

Also, when the γ correction command data is transmitted to the receiving unit, the controller 27 determines that the command data has been transmitted, and the γ correction memory 27-1
(FIG. 4).

The black and white command data and the γ correction command data are sent directly from the controller of the transmission module to the printer, and are transmitted first after the controller determines the transmission start command from the host 8. Thereafter, the image data is continuously transmitted with a certain delay after the command such as γ is sent. In this case, image data transmission can be started only after the transmission module receives a signal indicating that the command is received by the command receiving unit.

Next, control on the imaging side will be described with reference to FIG. This flowchart is a computer program included in the controller of the transmission module. When a key is input from the terminal on the transmission module side (51), an instruction to load the image data into the memory 4 is received (52). Thereafter, it is determined whether or not the image data is stored in the memory 4 (53). The host 3 is requested to connect to (54). If the host accepts the result of the line request (55), it sends the answer data to the host (56) and checks whether the host has connected the line (57). After that, control commands such as γ and black and white are transferred to the other party's receiver (58), the reception of the signal on the receiving side is confirmed (59), and a request is made to the other party to switch off the control port by the selector (60). , Confirm the cutoff (61), and send the image data from the memory (6
2). After the transmission is completed, the system waits for a confirmation signal from the receiving side and confirms it (63) and returns to the key input routine. If there is no confirmation signal, an error occurs (64) when a certain period of time has elapsed (64).

The transmission of commands and image data will be described with reference to FIG.

When the host computer 8 selects the line 7a and the line 7d, the host computer 8 sends a transfer data request command to the first color transmission module 2 connected to the line 7a as described above, and the first color connected to the line 7d. The reception request command is sent to the reception device 21.

The controller 3 of the first color transmission module 2 having received this confirms whether or not the image data has been stored in the memory 4, and if so, sends a transmittable command to the host computer 8. If not, the controller 1e requests the controller 1e of the first color imaging apparatus 1 for image data, and transmits a transmittable command after the data is transferred from the color imaging apparatus 1 and the data is stored in the memory 4. Send to

The first color receiving device 27 also checks whether the controller 27 is transferring a signal from the memory 25 to the first to the LBP unit 26, sends a receive command if the transfer is not in progress, and sends a receive command after the transfer is complete if the transfer is in progress. Send to host computer.

The host computer that has received both the transmission / reception enabled commands sends a transfer start command to the first color transmission module 2 and sends a reception start command to the first color receiving device 21.

The first color transmission module that receives this command,
An instruction to transmit the RGB parallel signal is issued from the memory 4 and the data is transmitted. When the data is output from the memory 4, it is represented by a conceptual diagram as shown in FIG. 6 (b). When it passes through the parallel-serial converter 5, data is transferred as shown in FIG. FIG. 6 (b) shows how the parallel data goes out in time. FIG. 6 (a) shows that the bits of the separated color signals are serially transmitted in time. In this way, the selector 6 connects the data output from the parallel-serial converter 5 to the line 7a. This prevents data collision by switching the data sent from the host computer to the controller to the circuit on the memory.

On the other hand, on the first color receiving device 2 side, the controller 27
Switches the selector 22 to connect the signal from the line 7d to the serial-parallel converter. Thus, the data of FIG. 6A is converted into a data group of FIG. It is converted into parallel RGB signals by the serial-parallel converter 23. An arithmetic process for correcting the above signal so as to match the characteristics of the color LBP unit 26 is performed. Since this requires high-speed processing, the use of a multiplication ROM and an addition ROM
Black component extraction and masking processing by R (under color removal) processing can be configured.

The data processed by the arithmetic processing unit 24 is recorded in the memory 25. This is because a timing controller is required because the data transfer speed and the write timing of the color LBP unit are different.

The controller 27 of the first color receiving device operates the color LBP unit 26 after the color signal is stored in the memory 25. At the timing requested by the color LBP unit 26, the controller 27 sends each color signal from the memory 25 to the color LBP.
A color copy is made by sending it to the unit 26.
The color LBP 25 has a dither circuit for each color, and has a dither pattern memory for Y, M, C, and Bk.

Next, when the host computer 8 selects the lines 7a and 7f, the host computer 8 sends a transfer data approval / disapproval command to the first color transmission module 2 connected to the line 7a.
A reception data acceptance / rejection command is sent to the receiving device 35 exclusively for monochrome reproduction, which is connected to the line.

The first color transmission module 2 which has received this transmits a transfer enable command to the host computer 8 after the above operation. On the other hand, the controller 41 of the receiving device 35 confirms whether or not the contents of the memory 39 are being transferred to the LBP unit 40, and sends a receivable command to the host computer 8 after the transfer is completed.

The host computer 8 that has received both the transmission / reception-enabled commands sends a transfer start command to the first color transmission module 2 and sends a reception start command to the receiving device 35.

The first color transmission device 2 receiving the transfer start command
Transmits the color image signal to the lines 7a and 7f by transferring the data as described above.

On the other hand, the controller 41 of the receiving device 35 receiving the reception start command from the host computer 8 sets the selector 36 to 7f.
Is connected to the serial-parallel converter 37. Siripara converter
The color image signal converted by 37 is output as RGB parallel data. This data is converted into a luminance signal by the arithmetic processing unit 38. As a specific example, like the multiplication ROM 38-1 for R for multiplying the R signal by 1/3 as shown in FIG. 7, the G multiplication R for multiplying the G signal and the B signal by 1/3 each.
By passing the data through the OM 38-2 and the multiplication ROM 38-3 for B and into the addition ROM 38-4 for adding those signals, the data is converted into a luminance signal. In this way, the signal is converted into a monochrome signal.

Next, this data is stored in the memory 39 in order to adjust the timing with the LBP unit 40. At the same time, the controller 41 activates the LBP unit 40 and
At the timing requested by the unit, the controller 41 starts transferring data in the memory 39. Receiving the image data
The LBP unit creates a hard copy. Like this
It is clear that a beautiful black and white copy can be obtained even when a color video signal is received. In addition, each color multiplication ROM of the arithmetic processing unit
Can be multiplied by various different coefficients by switching the switches 38-5, 38-6 and 38-7. Here, by inserting the relative luminous efficiency correction like coefficient in advance, it is possible to make a black-and-white copy close to the feeling of human eyes.

Third, consider the case where the host computer 8 selects the black-and-white image pickup device 15, the black-and-white transmission module 16, and the black-and-white reproduction-only receiving device 35. That is, the line 7c and the line 7f are selected,
A transmission / reception start command is sent from the host computer 8 to the controllers 18 and 41 of the black-and-white transmission module 16 and the receiving device 35, respectively. Then, the image signal of the memory 17 is sent out from the controller 18 of the monochrome transmission module 16 through the control line 18a. Here, the same data as the A / D converted value of the luminance signal is 3
Lines connected in parallel from selector 20 through line 7c
Supplied to 7f. The data is stored in the controller of the receiving device 35.
41 connects the selector 36 to the serial-parallel converter and is sent in parallel to the three signals by the serial-parallel converter, but since the signals are the same, the same data is obtained even if the addition processing is performed. The data subjected to the addition processing is recorded in the memory 39 by the controller 41 of the module 35, and the data is supplied from the memory 39 to the LBP 40 in accordance with the control timing of the LBP 40. With this configuration, it is possible to communicate from a monochrome monitor to a receiving device dedicated to monochrome playback.

Fig. 4 shows the black and white transmission module 16 and the first color receiver
The case when 21 is selected will be described. That is, the host computer selects 8 for selecting the line 7c and the line 7d, and sends a transmission / reception start command to the controllers 18 and 27 of the monochrome transmission device 16 and the color reception device 21, respectively. The command causes the controller 18 of the receiving device to store in the memory.
When the data is transmitted from 17 and supplied to the first color receiving device in the same manner as described above, the controller of the color receiving device 21 connects the signal from the line 7a to the serial-parallel converter 23 through the selector 22, and parallelizes the data. Put out RGB for monochrome transmitter
Calculation processing 24 because the same data is
And Here, since the lowest value of B, G, R is black from the above calculation contents, in this case, only the black signal is output because of the same signal data. Accordingly, monochrome image data is supplied to the memory 25. Therefore, the controller 27 reads the color LBP from the memory 25.
The data is supplied at the timing required by the unit 26, and a black and white copy comes out.

Although the individual combinations have been described above, it is also possible to simultaneously transmit data from one of the color imaging devices 1 to the first and second color receivers and the monochrome playback device. As is evident, the first and second color receivers can make color copies for color signal inputs and black and white copies for black and white inputs.
Also, if data is sent from the black-and-white image pickup device 16 to each receiving device, all black-and-white copies can be made.

The internal circuit of the arithmetic processing unit 24 of the color receiving unit is configured as shown in FIG. 24-1 is a comparator for B that compares the value of B and G, 24-2 is a comparator for G that compares the value of G and R, 24-3 is a comparator for R that compares the value of B and R, 24- 4,24-5,24-6 are inverters, 24-7,24-8,
24-9 is an AND circuit, 24-10, 24-11, and 24-12 are for B, G, and R
MIN value data storage RAM, 24-13, 24-14, 24-15
Subtraction ROMs for G-Bk and R-Bk, 24-17 are BGs that have processed UCR.
Masking processing circuit to correct color of R signal, 24-18
Is the AND of the same judgment signals from the B, G, and R comparators.
AND circuit 24-19 is an AND output counter, 24-20 is a comparator, and 24-21 is a switch for determining setting data.

BG from serial-parallel converter 23 in color reception in Fig. 1-2
When the signal of R is supplied to the arithmetic processing 24, two main processes are performed. One is a UCR process and a masking process. UCR processing means that the lowest value of the RGB signal has three color components, so it is considered to be black, the lowest value of these three color components is printed with black ink, and the other colors are subtracted from this black component. The idea is to print only the minutes. The masking process is a method in which the printing material of each color component has turbidity, and this is corrected by another color so as to be close to the read color. FIG. 8 will be described as an example of a high-speed operation of the UCR circuit. Each BGR signal is compared with B and G by a comparator 24-1 for B, and the G signal and R signal are compared by a comparator 24-2 for G. After the comparison, the R signal and the B signal are compared by the R comparator 24-3. Here, if the G signal is larger than the B signal, the B comparator 24-1 outputs an H level.
If R is greater than R or B is greater than R, each comparator
The level is output. For this reason, the condition that the B signal has the minimum value is that the output of the comparator for B becomes R> B and G> B when the output via the inverter 24-4 and the output of the R comparator become H level. Since it is determined, B becomes the minimum. Therefore, if both outputs are gated by an AND circuit,
The B signal is minimized. Similarly, considering the other R and G, a signal whose G is MIN is output to the AND output 24-8, and a signal whose R signal is MIN is output to the AND circuit 24-9. Here, when B is the minimum value, since the signal determined by AND 24-7 is at the H level, the value of the B signal activates the enable terminal of the B MIN value data RAM 24-10, and the B MIN value data RAM To store the value of the signal B. This data is
The input addresses of the subtraction ROM 24-13 for B-Bk, the subtraction ROM 24-14 for G-Bk, and the subtraction ROM for R-Bk are entered. Switch 24-21
Count up to the data set in. The comparator 24-20 outputs a signal indicating a monochrome image to the control signal 27-e assuming that the count value and the setting data have become the same.

Next, the control 27 controls the color LBP unit 26 according to the identification signal 27-e as shown in FIG. This flowchart shows the computer program of the controller 27. First, in a copy standby sequence 91,
The system waits for a signal from the host computer. Here, the above-described process of transmitting the receivable command is performed. Thereafter, a processing flow 94 for storing data in the memory 25 is performed.
At step 95, it is determined whether or not data has been entered into 25, and after confirmation, the identification signal 27-e is determined at step 96. If there is, the flag of the monochrome mode is set. Step 97 is processed, and if not, a color mode flag is set (98).

Thereafter, the controller 27 determines whether the color LBP 26 can be copied (steps 99 and 100), performs a pre-copy operation (step 101), determines a flag indicating whether the sequence is a color sequence or a monochrome sequence (step 102). The operation is performed (steps 103 and 104), and then the copy after sequence is terminated (step 105), and the process returns to the copy standby sequence 1.

Also, the color LBP has separate dither processing circuits for Y, M, C, and Bk so that, when copying in black and white, an image that has been cut off by the Bk dither is output.

The above-described black-and-white sequence can be executed not by the identification signal 27-e but by the control command data 27-a.

That is, as described above, the control side monochrome command is transmitted from the transmitting side in advance of the transmission start, so that the Bk mode flag is set and the above control can be performed.

Here, step 93 in the reception blow processing of FIG.
Will be described with reference to FIGS. As described above, when there is a line type command request from the host computer (120), the receiving unit sends model data (121), waits for an instruction from the host (122), and when there is no signal from the host for a certain period of time (123). ), Go to a standby sequence (124), and if so, send a data request command from the host as described above, so it is determined whether copying is in progress or memory is used, and copying and memory can be used. Only when this is the case, an enable signal is sent to the host (125). Next, a data type signal is received from the other end of the line (transmission module) (126). As an example, the transmitted data is stored in the A register as a data type as shown in FIG. 11 (127). The 8 bits of the A register are each separated by 2 bits, and the gamma correction unit 29 of FIG. 4 is passed through 29a, the masking unit is passed through 30a, and the UCR is used.
The control value of each unit is controlled by the 2-bit data via the data line 31a, and the control value of each unit is controlled via the data line of the dither processing unit 32a (that is, the processing by the image processing parameters of the present invention can be performed). After confirming the preset of the control data, the disconnection of the control port from the other party is confirmed (129), and the selector is switched from the control side to the serial-parallel converter side (130).

It should be noted that by making the above-mentioned configuration without a parallel-serial converter and a serial-parallel converter, it is possible to transmit ultra-high-speed data.

In addition, the transmission side and the reception side do not have an image memory, and can be provided to the host to reduce the cost. However, a burden is imposed on the host computer.

In addition, by connecting to a graphic computer instead of an image pickup device, a variety of color images can be created by increasing the number of terminal devices.

In addition to command data such as black and white and color data as request command data, connection control of transmission and reception by the host can be performed with command data such as resolution and speed, and the processing unit can be controlled so as to match each characteristic.

In the present embodiment described above, the features of the present invention are shown in steps 126 and 127 in FIGS. 4 and 10.

<Effects of the Invention> As described above, according to the present invention, in an image processing system including a printer control device and an electronic device, when the printer control device executes printing based on received image data, the printer control device In the electronic device that is a data supply source to the printer, the image data to be printed and the image data to be printed are converted from the electronic device to the printer control device without converting the image data into the image data for printing. By transmitting an image processing control parameter corresponding to the type of the printer for conversion, which affects the tone reproduction characteristics of the printer, all electronic image processing parameters are transmitted to the electronic device. The burden of image processing on the electronic device side can be reduced compared to the case of performing It is possible to control the tone reproduction characteristics of a simple printer.

Further, by transmitting the image data and the image processing control parameters after determining that the transmission and reception are possible by the protocol communication, the data and the image processing control parameters can be reliably transmitted from the electronic device to the printer control device.

[Brief description of the drawings]

FIGS. 1-1 and 1-2 are block diagrams of the image signal transmission / reception system, FIGS. 2 and 11 are register diagrams for command judgment, FIGS. 3 and 5 are transmission control flowcharts, and FIG.
FIG. 6 is a circuit diagram of FIG. 1, FIG. 6 is a conceptual diagram of data transmission, FIG. 7 and FIG. 8 are circuit diagrams of the arithmetic processing unit of FIG. FIG. 10 is a flowchart. In the figure, 2, 10, and 16 are transmission modules, and 21, 28, and 35 are print modules.

Claims (1)

(57) [Claims] 1. An image processing method for an image processing system including a printer control device and an electronic device, comprising: performing a predetermined protocol communication between the printer control device and the electronic device; It is determined whether or not data transmission / reception is possible, and the type of the printer to be controlled by the printer control device is determined. In order to execute the printing based on the image data, the electronic device instructs the printer control device to correspond to the image data to be printed and the determined type of the printer for converting the image data into image data for printing. Image processing control parameters that affect the tone reproduction characteristics of the printer. An image processing method comprising transmitting data.