JPH05344344A - Picture processor - Google Patents

Abstract

PURPOSE:To efficiently attain a multi-address transmission, and to improve a man-machine interface by operating the multi-address transmission of picture data according to a progressive build-up or sequential build-up designated at a reception side. CONSTITUTION:At the time of turning on the power source of a device, a CPU 2 initializes a parameter, and confirms the selection of an operating mode. For example, in a transmission processing, the CPU 2 detects that an original is set and a key 29 is pressed through a gate array 10, and operates the transmission processing to one of the destinations of the multi-address transmission. At that time, the reception side judges whether or not the progressive build-up is possible, and selects whether the progressive build-up system or the sequential build-up system is operated. The multi-address transmission can be efficiently attained, and the man-machine interface can be improved by repeating the above mentioned processing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image processing apparatus capable of performing hierarchical encoding and capable of broadcast transmission.

[0002]

2. Description of the Related Art Conventionally, in a facsimile apparatus as an image processing apparatus, (1) broadcast transmission is possible but hierarchical encoding is impossible, and (2) hierarchical encoding is possible. However, it is configured so that broadcast transmission is impossible.

[0003]

However, even if a facsimile apparatus capable of hierarchical coding and capable of broadcast transmission will appear in the future, the characteristics of the receiver of the other party will be affected when performing the broadcast transmission. It is predicted that all the destinations will be sequentially built up, that is, the paper surface will be scanned from left to right or from top to bottom, and coded in that order and transmitted. That is, in the conventional facsimile apparatus, in addition to the problem that the hierarchical encoding cannot be performed or the broadcast transmission cannot be performed, it is necessary to perform the sequential buildup even for the receiving side facsimile apparatus capable of progressive buildup. It has the drawback of not being able to Here, progressive build-up means that encoding is performed hierarchically, and at the initial stage of transmission, the entire image is displayed although it is rough, but the image quality is improved by adding information as necessary. This is a method of An object of the present invention is an image capable of being hierarchically encoded and capable of broadcast transmission, transmitting image data according to progressive build-up or sequential build-up designated by the receiving side, and enabling efficient broadcast transmission. It is to provide a processing device.

[0004]

In order to achieve the above object, the present invention provides an image in which coded image information is hierarchically handled at the time of transmitting and receiving an image and the image is broadcasted. The processing device includes means for determining mode designation from the receiving side when performing broadcast transmission, and means for switching between sequential buildup transmission and progressive buildup transmission according to the mode designation.

[0005]

In the above structure, the image information is transmitted by progressive buildup or sequential buildup designated by the receiving side.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a block diagram showing the configuration of a facsimile apparatus which is an image processing apparatus according to this embodiment. In the figure, the CPU 2 has a ROM 3,
It is connected to the RAM 4 via the bus 20 and controls the operation of the entire apparatus according to the control program stored in the ROM 1. The RAM 4 is used as a work area for the CPU 2. The CPU 2 has a crystal oscillator 1 for generating its operation clock. The reading unit for reading the original image in this apparatus is mainly a CCD
It is composed of the line sensor 11 and the reading motor 22.
In addition, the image recording unit includes a recording head (thermal head) 1
2 and a recording motor 13, etc., and is used for recording a received image or a copy image. The modem 14 modulates / demodulates image data and control procedure data,
It is connected to the line 23 through the NCU 15. This NCU
15 holds the loop current of the line 23, and the telephone 2
4 and circuit exchange. Further, the hierarchical encoding / decoding LSI 9 (hereinafter referred to as LSI) performs the processing described later (“C: encoding processing” and “D: decoding processing” shown in FIG. 2).

FIG. 2 shows a JBIG (Joint Bi-level Image).
It is a figure which shows the concept of the hierarchical encoding process used as the object of standardization in (Group). Here, the resolution of the original image is 4
Assuming that the resolution is about 00 dpi or more, the transmitting side sequentially creates the necessary number of layers of low-resolution images whose resolution is halved both horizontally and vertically. In the standardized model shown in FIG. 2, the resolution of the original image is 400 dpi, the number of layers is 6, the minimum resolution is 12.5 dpi, and 12.5 dpi and 25 dpi.
The image having the resolution of i is displayed in a size of 3/16 × 3/16 of the original image, and is assumed to be used as an icon. On the transmitting side, the lowest resolution image is encoded and transmitted. Next, the information necessary for increasing the resolution is sequentially encoded. Also, on the receiving side, decoding from the lowest resolution image,
Progressive display is realized by reproducing and displaying images whose resolutions are sequentially improved, and finally, decoding and reproduction of the original image without deterioration can be obtained. However, it is also possible to terminate the image with an intermediate resolution if necessary. Next, the control of the facsimile apparatus according to this embodiment will be described in detail. FIG. 3 is a diagram showing an entire communication procedure of the facsimile apparatus according to this embodiment, and FIG. 4 is a schematic flowchart showing a communication control procedure in the facsimile apparatus according to this embodiment.

In FIG. 4, when the power of the facsimile machine is turned on, the CPU 2 initializes the parameters in step S1, and in steps S2, S4, S6 and S8, the copy, transmission, reception, and function are set as operation modes. After determining whether or not it has been selected, copy processing, transmission processing, reception processing,
Then, the function processing is executed. For example, in step S4, when the CPU 2 detects via the gate array 10 that a document is set on the apparatus and a one-touch key (not shown) forming the key 29 is pressed,
Proceed to the transmission process of step S5. FIG. 5 is a detailed flowchart of the transmission processing in step S5 of FIG. 4 described above. In the figure, the CPU 2 initializes the parameters in step S11, and in the following step S12, determines whether or not the transmission mode is broadcast transmission. That is, when the pressing of the one-touch key (not shown) for instructing the broadcast transmission is detected, the determination result of the broadcast transmission is Yes, and therefore the processes of step S13 and the subsequent steps are executed.

That is, the set original is read in step S13, and the read original image data is stored in the memory in subsequent step S14. And step S
If it is determined in step 15 that reading of all pages and memory storage have been completed, in step S16, transmission processing is performed to one of the plurality of broadcast transmission destinations, and step S16 is performed.
The process loop of 16 → step S17 → step S16 is executed for the number of destinations of the broadcast transmission, and when the broadcast transmission is completed, the process returns. On the other hand, if it is determined in step S12 that the transmission is not the broadcast transmission, the process proceeds to step S18 in order to perform a normal transmission process to a single destination.
Then, after the transmission process ends, the process returns. Next, referring to the flowchart shown in FIG. 6, step S16 in FIG.
The details of the broadcast transmission process shown in FIG. In FIG.
In step S21, automatic dialing is performed to each destination for broadcast transmission, and the following procedure is performed in step S22. Then, in step S23, it is determined whether or not the facsimile machine on the receiving side is capable of progressive buildup. The determination here is the bit information included in the NSF signal in the communication procedure shown in FIG. 3, which is SE in FIG.
It is performed based on whether the Q bit is "0" or "1". Note that FIG. 7 shows the NSF D sent by the facsimile machine on the receiving side.
It is a figure which shows the hierarchical coding header in IS signal.

When SEQ = 0 is determined in step S23, the process proceeds to step S25 to transmit the image information coded by the progressive buildup method. If SEQ = 1, the image information encoded by the sequential buildup is transmitted in step S24. Then, after transmitting the image, the process proceeds to step S2.
Proceed to step 6, perform the post-procedure, and then return. As a result of the above processing, the processing shown in the flowchart of FIG. 6 is repeated for the number of destinations for broadcast transmission, so that the facsimile apparatus on the receiving side executes the sequential buildup in step S24 or step S25. You will be running a progressive buildup of.
As described above, according to the present embodiment, in a facsimile device capable of hierarchical coding and capable of broadcast transmission, image information is displayed in accordance with progressive buildup or sequential buildup designated by the receiving device. By transmitting, there is an effect that the broadcast transmission is made efficient and the man-machine interface of the apparatus can be improved.
The present invention may be applied to a system including a plurality of devices or an apparatus including a single device.

[0011]

As described above, according to the present invention,
Broadcasting image data according to progressive build-up or sequential build-up designated by the receiving side has the effect of increasing the efficiency of broadcast transmission and improving the man-machine interface.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a facsimile apparatus which is an image processing apparatus according to this embodiment,

FIG. 2 is a diagram showing a concept of a hierarchical encoding process which is a standardization target in JBIG,

FIG. 3 is a diagram showing an entire communication procedure of the facsimile apparatus according to the embodiment,

FIG. 4 is a schematic flowchart showing a communication control procedure in the facsimile apparatus according to the embodiment,

5 is a detailed flowchart of transmission processing in step S5 of FIG. 4,

FIG. 6 is a detailed flowchart of broadcast transmission processing shown in step S16 of FIG.

FIG. 7 is an NSF sent by a facsimile machine on the receiving side.
It is an explanatory view of a header of hierarchical coding in a DIS signal.

[Explanation of symbols]

 1 Crystal Oscillator 2 CPU 3 ROM 4 RAM 5, 7, 10, 18 Gate Array 9 Hierarchical Encoding / Decoding LSI 11 CCD 12 Recording Head 13 Recording Motor 14 Modem 15 NCU 16 Sensor 17 Motor Drive IC 19 Speaker 21 Speaker Drive Circuit 23 Line 24 Telephone

Claims (1)

[Claims] 1. An image processing apparatus for hierarchically handling coded image information when transmitting and receiving images, and for performing broadcast transmission of images, when performing broadcast transmission, mode designation from the receiving side. An image processing apparatus, comprising: a unit for determining whether to perform transmission according to the mode designation, and a unit for switching between transmission by sequential buildup and transmission by progressive buildup.