JPH0638053A - Image transmitter and image processor - Google Patents

Abstract

PURPOSE:To inform that an original image is colored by adding a message showing that the original image is a color image in the case of transmission with conversion from the color image to a non-color image. CONSTITUTION:The color image to be transmitted is read from a hard disk 36 and transferred to an image conversion circuit 14. In the conversion circuit 14, an inside color/monochromatic conversion circuit 50 converts the inputted color image data to monochromatic image data. Next, an image synthesizing circuit 54 synthesizes a message image (c) stored in a message memory 52 to a monochromatic image (b) from the color/monochromatic conversion circuit 50. Thus synthesized image is stored in the hard disk 36 for transmission.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image transmission device and an image processing device, and more particularly to an image transmission device and an image processing device having a color image transmission function.

[0002]

2. Description of the Related Art A color facsimile is a representative of the above-mentioned color image transmission devices. In the color facsimile, when the receiving side has only the capability of receiving a monochrome image, the transmitting side device converts the color original image into a monochrome image in advance and transmits it.

[0003]

As described above, the color
The facsimile can transmit the image information to a facsimile device having only the capability of receiving a monochrome image, but the receiving side could not know that the received image was originally in color.

It is an object of the present invention to present an image transmission device and an image processing device which eliminate such inconvenience.

[0005]

An image transmitting apparatus according to the present invention is an image transmitting apparatus for converting a color image into a non-color image and transmitting it to a terminal having no color image receiving capability. When converting from a color image to a non-color image, addition means for adding a message indicating that the original image is in color is provided.

The image processing apparatus according to the present invention includes a conversion means for converting a color image into a non-color image, and an addition for adding a message indicating that the original image is in color to the non-color image when the conversion means converts. And means.

[0007]

By the above means, the message is added to the non-color image or transmitted in the protocol, so that the receiver can be informed that the original image is in color and originally wanted to transmit color. it can.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a schematic block diagram of an embodiment of the present invention. Reference numeral 10 is a CPU that controls the whole, 12 is an image encoding / decoding circuit that encodes an image to be transmitted and decodes a received encoded image signal, and 14 is a conversion of a CMYK image into an RGB image and its inverse conversion ( (γ conversion), a color image into a monochrome image, a multi-valued image into a binary image, and the like.

Reference numeral 16 is a frame memory used for the encoding and decoding processing by the image encoding / decoding circuit 12 and the image conversion processing of the image conversion circuit 14, and 18 is a DMA.
A (direct memory access) control circuit, 20 is a character generator (CG) that generates a character pattern signal, and 22 is a communication control circuit that controls connection with a communication line, for example, ISDN.

Reference numeral 24 is a key input device for the user to input various instructions, 26 is a display device for displaying various information such as paper out, ink shortage and communication status, and 28 is an image for reading an original image. The scanner 30 is a printer that prints out a received image and a report of the communication status, and these are directly controlled by the I / O control circuit 32.

Reference numeral 34 is a well-known SCSI (or SCSI-
2) Interface, 36 is a hard disk.

38 is an image data bus dedicated to image data, 40 is a system bus for system control, and the image data bus 38 includes circuits 12, 14, 16, 18,
20, 22, 28, 30, 34 are connected to each other,
The system bus 40 interconnects the circuits 10-22, 32, 34.

FIG. 2 shows a color / image generated by the image conversion circuit 14.
It is a block diagram which shows the flow of a monochrome conversion process. The image data read as a color image by the image scanner 28 is temporarily stored in the hard disk 36. When this color image data is to be converted into monochrome image data, the CPU 10 reads out the color image data to be transmitted from the hard disk 36, and the SCSI
It is transferred to the image conversion circuit 14 via the interface 34 and the image data bus 38.

In the image conversion circuit 14, the internal color / monochrome conversion circuit 50 converts the input color image data into black and white image data. In the message memory 52, when transmitting a color image as a black and white image, a message image for notifying the receiving side that the image was a color image, for example, message image data of the content "This image was in color" is stored. In accordance with the control signal from the CPU 10, the image synthesizing circuit 54 synthesizes the message image stored in the message memory 52 with the monochrome image output from the color / monochrome converting circuit 50. Image synthesis circuit 54
The image combined by is stored on the hard disk 36 for transmission.

Many facsimile machines are provided with a so-called one-touch dialing function in which a plurality of telephone numbers of communication partners and abbreviated names of communication partners are registered in advance. In the present embodiment, as shown in FIG. 3, in addition to the telephone number of the communication partner and the abbreviation of the partner, a color / monochrome type indicating whether the partner model is color-supported or black-and-white and a color / monochrome converted image are displayed. It is possible to register a message flag indicating whether to synthesize and transmit a message image. These data are registered in the RAM of the CPU 10.

Next, the operation of this embodiment when transmitting a document in which color pages and monochrome pages are mixed will be described. FIG. 4 shows a flowchart of the operation.

The communication control circuit 22 establishes a line with the communication partner (S1), and the session start command CSS (Comm) is executed by the session layer procedure in the transmission control procedure.
and Session Start) and session start affirmative response RSSP (Response Se)
The receiving capability of the partner terminal is checked by negotiation of session start positive). That is, it is checked whether the partner terminal is a color facsimile or a monochrome facsimile (S2, 3).

When the communication partner is a monochrome facsimile (S4) and the transmission page is color (S5), the image conversion circuit 14 converts the color image into a monochrome image (S6). Then, referring to the message flag or the presence / absence of the message input from the key input device 24 shown in FIG. 3, when adding a message (S
7), 1 after combining the message image with the black and white image
When the page is transmitted (S8, 9) and no message is added, one page is transmitted without combining the message (S7, 9).

If the communication partner is not a monochrome facsimile (S4), or if the transmission page is not in color even in a monochrome facsimile (S5), the page is transmitted as it is (S9).

Repeat S4 to S9 until the last page (S
10) When the final page has been transmitted, the line is cut off and the process ends (S11).

In the above embodiment, the color image is converted into a black and white image and then the message image is combined. However, it goes without saying that the color message may be combined with a color message image and then converted into a black and white image. Absent. Further, in the above embodiment, conversion from a color image to a monochrome image for each page,
I am sending it, but I convert all color pages to black and white before starting image transmission, and after composing a message if necessary,
You may send each page.

Although the message flag is set for each communication partner by one-touch dialing, it may be set as a system parameter set by the user. It goes without saying that the composition of the message may be performed in document units or page units.

In this embodiment, a message is combined with an image converted from a color image to a non-color image, but the present invention is not limited to this, and such a message is simply transmitted, and the receiving side displays this message on the monitor. It may be displayed simply.

Even if the receiving terminal has the ability to receive color images, it is set to the inactive state, and when notifying the communication partner that it does not have the ability to receive color images, the terminal is It is considered as not having the ability to receive color images.

[0026]

As can be easily understood from the above description, according to the present invention, when a color image is converted into a non-color image and transmitted to a terminal having no color image receiving capability, the original image is transmitted. Can be told that was in color.

[Brief description of drawings]

FIG. 1 is a schematic block diagram of an embodiment of the present invention.

FIG. 2 is a functional block diagram of an internal operation of the image conversion circuit 14.

FIG. 3 is registration information for one-touch dial.

FIG. 4 is an operation flowchart of the present embodiment.

[Explanation of symbols]

10: CPU 12: Image encoding / decoding circuit 14: Image conversion circuit 16: Frame memory 18: DMA control circuit 20: Character generator 22: Communication control circuit 24: Key input device 26: Display device 2
8: Image Scanner 30: Printer 32: I /
O control circuit 34: SCSI interface 36:
Hard disk 38: Image data bus 40: System bus 50: Color / monochrome conversion circuit 52: Message memory 54: Image composition circuit

Claims (5)

[Claims] 1. An image transmission apparatus for converting a color image into a non-color image and transmitting the color image to a terminal having no ability to receive a color image, wherein the original image is converted into a color image when the color image is converted into the non-color image. An image transmitting apparatus comprising: an addition unit for adding a message indicating that 2. The image transmitting apparatus according to claim 1, wherein the adding unit selectively adds the message according to a user setting. 3. The image transmitting apparatus according to claim 1, wherein the adding means is means for adding an image representing the message to the non-color image. 4. The image transmission device according to claim 1, wherein the adding means transmits the message separately from the non-color image during a protocol procedure. 5. A conversion means for converting a color image into a non-color image, and an addition means for adding a message indicating that the original image is in color to the non-color image at the time of conversion by the conversion means. Image processing device.