JPS62231242A - Printing method for crt image containing character - Google Patents

Abstract

PURPOSE:To improve character quality and to easily enter characters by erasing CRT image data which is superposed upon a character plate among CRT image data recorded in a memory and writing light emission data for lighting the character plate instead. CONSTITUTION:When there is a CRT image in a character recording area where the character plate 26 is superposed, data on this CRT image is deleted from the frame memory, and the light emission data corresponding to the color of characters to be recorded is written instead to allow a CRT11 to emit light based upon the light emission data. This light emission data is written by specifying the position and color of the character recording area on a keyboard 57; when the light emission data no only one color is written, monochromatic characters are displayed and when the light emission data on colors are written, a composite color display is obtained. Actually, the light emission data is written by software. Consequently, the characters neither blurs at their contour nor become fogged owing to a defect in contacting and even small characters can be sharply printed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for printing a CRT image with text used to create a printed photograph containing a mixture of CRT images and text.

[Conventional technology]

2. Description of the Related Art Recently, printed photographs, in which characters such as greetings and photographic images are printed on photographic paper, have been widely used as postcards. In order to create a printed photograph containing a mixture of images and text, a CRT printing device is used, and a computer is used to combine image data input from an image input device, such as a TV camera, with character data input from a keyboard. This combined image is displayed on a CRT and printed on photographic paper.

In addition, a character insertion unit consisting of a dial and a light source is used, and the character insertion unit is placed in front of the CRT so that the dial is in close contact with the photographic paper. There have also been proposals that allow characters to be printed on.

[Problem that the invention seeks to solve]

Generally speaking, when it comes to letters, the contrast of the outline is more important than the contrast between floors, but if the letters are printed directly onto photographic paper using a CRT, the outlines of the letters will bleed, so it is important to print clear letters. I can't.

In addition, in the case of using a character insertion unit to perform contact exposure, a light source for illuminating the dial plate is required, so the structure of the apparatus becomes 9 ft., resulting in an increase in cost.

The present invention solves the problems of both character burning with a CRT and character insertion unit, and provides a CRT image with characters that has good character quality and allows easy character insertion. Burning is intended to provide a method.

Furthermore, it is an object of the present invention to provide a method for printing a CRT image containing characters, which prevents characters from becoming mottled or partially missing due to the influence of the CRT image. It is.

[Means for solving problems]

In order to achieve the above object, the present invention arranges a dial on which characters are recorded on a part of the display surface of a CRT, and prints the image displayed on the CRT and the characters illuminated by the CRT with a lens. When printing, out of the CRT image data stored in the memory, the portion of the CRT image data that overlaps with the dial plate is erased, and light emission data for illuminating the dial plate is written in its place.

When printing color characters, the luminescence data is written into a memory that stores CRT image data of each color. By changing the luminescence data written in each memory for each color, characters in any color can be printed on photographic paper.

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

〔Example〕

A black and white CRT (hereinafter simply referred to as CRT) 11 is placed opposite color photographic paper 10, and this CI? T1
The CRT image displayed on the display 12 of No. 1 is displayed on the lens 13
An image is formed on the color photographic paper 10 by. The CRTI
When printing, I sequentially displays a black-and-white image of a negative red image, a green image, and a blue image expressed in brightness for about 1 second each, but in order to convert this black-and-white image into a monochrome image of red, green, and blue , lens 13 and color photographic paper lO
A red filter 14. A green filter 15 and a blue filter 16 are arranged, and a filter switching section 17
is selectively inserted into the optical path of the lens 13. A zoom lens is used as the lens 13 in order to adjust the printing magnification of the CRT image, but a turret holding a plurality of lenses with different focal lengths may be used instead.

In a postcard, text such as "Happy New Year" or "Midsummer Greetings" is inserted on the left and right or above and below the CRT image. To print these texts on color photographic paper 10, a character display p:I 20 is used and mounted on the CRTII. As shown in detail in FIG. 2, this character display 20 has a feed screw shaft 23 rotatably installed on a rotating ring 22 having a gear 21 formed on its outer periphery, and a guide rod 24 installed in parallel thereto. has been done. These feed screw shafts 23
A holder 25 is movably attached to the guide rod 24, and while holding the dial 26, the CRTI
It can be moved to a desired position along the display surface 12 of I. This holder 25 is made of transparent plastic, and a dial 26 is placed or removably bonded thereon. If the holder 25 is opaque, a notch or opening is formed thereon, and the edge of the dial 26 is releasably joined thereto. Boots 1728 and 29 are fixed to the feed screw shaft 23 and the motor 27, respectively, and a belt 30 is hung around them.

A gear 32 fixed to a motor 31 meshes with the gear 21 of the rotating ring 22 so that characters can be printed freely in the vertical and horizontal positions. Note that the motor 31 may be omitted, and instead, a knob may be connected to the gear 32, and the knob may be turned by hand.

The dial plate 26 can be easily created by photographing the original with a print negative and then developing the photograph. When a document with black text on a white background is photographed, the text negative is recorded as white text with transparent text. If you photograph an original where the text is white and the surrounding area is black, you can obtain a print negative in which everything except the text is transparent. When recording colored characters on the color photographic paper 10, it is sufficient to use a lithographic negative in which the characters are transparent, and to adjust the ratio of the three-color exposure amount. Note that instead of the lithographic negative, a transparent or opaque plastic sheet or the like may be used, and characters may be printed or punched on this.

The portion of the CRT II overlapping the dial plate 26 is used as a character recording area, and characters are printed onto the color photographic paper 10 by the light emitted from this area.

By attaching a diffusion plate below the dial 26 or by making the holder 25 from a material with a diffusion effect and attaching the dial 26 on top of this, horizontal lines caused by the CRT's Lasque light emission can be prevented from entering the characters. be able to. Dial plate 26
The characters recorded on the CRT image are printed on the color photographic paper 10 at the same time as the CRT image is printed.
When printing an image, it is sometimes possible to print the CRT image and the characters separately by applying an electric mask to the character recording area so that this area does not emit light.

A shutter 35 is arranged in front of the color photographic paper 10, and its opening and closing are controlled by a shutter control section 36.

The shutter 35 opens and closes three times in total, once for each color, to print a color image on the color photographic paper 10. In addition, if you do not mind a slight decrease in resolution, use a color CRT.
The CRT image can be printed onto the color photographic paper 10 by opening and closing the shutter 35 once.

The color photographic paper 10 is pulled out by one frame from the supply reel 37 every time one frame of printing is completed, and the printing paper surrounded by the easel mask 38 and the pressure plate 39 is sent to a position, and the exposed area is is wound onto the take-up reel 40. Note that numerals 4 and 42 are rollers.

If a CRT image exists in the character recording area where the dial plate 26 overlaps, the data of this CRT image is erased from the frame memory, and instead, luminescent data corresponding to the color of the character to be recorded is written, and this luminescent data is erased from the frame memory. CRTII with data
to emit light. For example, if a dial 26 with transparent text is used and the text recording area is made to emit light during red exposure with the red filter 14 inserted in the optical path, cyan text will be recorded on a white background on the printed photograph. Ru. Further, if the character recording area is made to emit light during green exposure using the green filter 15, characters colored magenta by development processing are recorded on the color photographic paper 10. Furthermore, in any case of three-color exposure, black characters can be recorded by emitting light from the character recording area, and characters of a desired color can be recorded by changing the ratio of three-color exposure.

A mirror 46 that rotates about a shaft 45 is arranged above the lens 13, and is inserted obliquely into the optical path of the lens 13 during monitoring, and is retracted to the position shown by the two-dot chain line during printing. .

When the mirror 46 is inserted into the optical path, a composite image of the CRT image and characters is projected onto the transmissive screen 47.

FIG. 3 shows a circuit of a CRT exposure system.

As the image input section, a color TV camera 50 or the like is used, and this color TV camera 50 performs three-color separation photometry of the subject and outputs image data (a red video signal, a green video signal, and a blue video signal), respectively. , and sends this to the A/D converter 51. This image data for each color is subjected to logarithmic conversion and color correction (masking processing) in the control circuit 52, and then sent to the frame memory 53, where it is stored separated for each color. Also, floppy 54 and magnetic tape 5
Computer graphic images (CG images) etc. written to the storage medium drive circuit 56 are transferred to the control circuit 52 through
can be entered. Furthermore, using a digitizer,
CG images can also be input. The keyboard 57 is
In addition to being used to control each part, it is also used to specify the position, size, and color of the character recording area. Further, the position of the CRT@ image can be changed by operating the keyboard 57 to change the writing position in the frame memory 53. Furthermore, the control circuit 52 receives the image data inputted by the color TV camera 50 and the floppy 5
By adding the image data inputted from 4, etc. pixel by pixel, image synthesis can be performed electrically.

The image data of each color stored in the frame memory 53 is read out during monitoring or printing, and is sent to the look-up table memory 58. This lookup table memory 58 performs gradation correction and positive/negative inversion according to the characteristics of the color photographic paper 10. Note that when using reversal color photographic paper, do not perform positive/negative reversal.

The output signal of the lookup table memory 58 is D
The signal is converted into an analog signal by the /A converter 59 and then sent to the switching circuit 60. This switching circuit 60 sends a negative image three-color signal to the matrix circuit 61 during monitoring.
During printing, three-color signals of a negative image are sent to the selection circuit 62. The matrix circuit 61 calculates the three color signals and outputs a brightness signal, which is sent to the CRT drive path 63. Further, the selection amount ItPf62 extracts one of the three color signals during printing and sends it to the CRT drive circuit 63.

In order to erase the CRT image from the character recording area,
The control circuit 52 is provided with a data rewriting section 52a, and the light emission data is written to the frame memory 5 instead of the image data.
It is designed to be written to 3. To write this light emission data, enter the position and color of the character recording area on the keyboard 57.
This is done by specifying the following. - If coloring data is written for only one color, it becomes a single-color character, and if different coloring data is written for each color, it becomes a composite color. Note that, in reality, the coloring data is written using software.

Next, the operation of the embodiment described above will be explained.

Images input from the color TV camera 50 and CG images manually created from the floppy disk 54 or magnetic tape 55 are
After the image is processed by the control circuit 52, the frame memory 5
3 are written separately for each color. Further, when a plurality of images are input at the same time, the images can be combined by the control circuit 52 by operating the keyboard 57.

Image input and image synthesis can be performed while viewing the screen 47, and during this monitoring, the output system of the switching circuit 60 is switched to the matrix circuit 61 side. The positive image data written in the frame memory 53 is subjected to positive/negative inversion and gradation correction in the lookup table memory 58, and then converted to an analog signal by the D/A converter 59. , are sent to the matrix circuit 61. This matrix circuit 61 is
A brightness signal is calculated from the three color signals of the negative image, and this is transmitted to the CRT.
The signal is sent to the drive circuit 63, and a black and white CRT image is displayed on the CRT II. During this monitoring, since the mirror 46 is inserted into the optical path as shown by the solid line, the CRT image is projected onto the screen 47.

When combining characters such as "Happy New Year" with a CRT image and printing them on color photographic paper 10, a dial 26 on which these characters are recorded is selected and attached to a holder 25. The position of the characters can be determined by operating the keyboard 57 and moving the dial 26 on the CRT II. When this keyboard 57 is operated,
Since the motor 27 rotates, the rotational force of the motor 27 is transmitted to the feed screw shaft 23 via the belt 30. When the feed screw shaft 23 rotates, the holder 25 moves along the guide rod 24 while holding the dial 26. Also, to change the burning position between vertical and horizontal characters, operate the keyboard 57 to rotate the motor 31 and rotate the rotary ring 22.
This can be done by not rotating 90 degrees.

The state of composition of the CRT image and characters is shown on the screen 47.
You can check from. If you are not satisfied with this composition,
The keyboard 57 is operated to change the position of the CRT image or adjust the position of the dial 26. At the time of this monitoring, it is sufficient to check the composite state, so
In order to extend the lifetime of CRTII, it is desirable to lower its luminance.

Select the character recording area and the color of the characters using the keyboard 57.
To that effect. When this character recording area and color are designated, the data rewriting unit 52a changes the character color to a portion 53a of the memory cells of the frame memory 53 corresponding to the character recording area, as shown by hatching in FIG. The corresponding light emission data is written and the previously written CRT image data is erased. Writing of this light emission data is performed for each color, and the light emission of the character recording area is controlled by this light emission data.

After observing the monitor, the keyboard 57 is operated to print the CRT image and characters onto the color photographic paper 10. During this printing, the CRTll emits full light and the mirror 46 is retracted to the position shown by the two-dot chain line. Further, since the switching circuit 60 is switched to the selection circuit 62 side, each color signal is sent to the selection circuit 62.

The selection circuit 62 first takes out the red signal and sends it to the CRT.
The signal is sent to the drive circuit 63, and an image corresponding to the brightness of the red image is displayed on the CRT II. When a red image is displayed in black and white on this CRTII, a red filter 14 is inserted into the optical path of the lens 13, and the black and white image displayed on the CRTII is converted into a red image. In this state, color printing IE
The shutter 35 is opened for an exposure time, for example, about 1 second, which is determined according to the red sensitivity of the IO, and a red image is printed on the color photographic paper 10 during this time.

After exposure of the red image, the shutter 35 is closed, during which the red filter 14 is retracted and replaced by the green filter 1.
5 is inserted. At the same time, the green image is displayed in black and white on the CRTII. Immediately after this, the shutter 35 is opened again for a predetermined period of time, for example, about 1 second (so that the CRTI
The black and white image displayed on I is converted into a green image by a green filter 15 and exposed onto color photographic paper 10. Similarly, a blue image is exposed to the color photographic paper IO for about 1 second. When a CRT image is printed on the color photographic paper 10 by this three-color plane sequential exposure method, the unexposed portion is pulled out from the supply reel 37, and the exposed portion is taken up on the take-up reel 40.

At the same time as the CRT image is printed, the character recording area of the CRT display surface 12 emits light according to the color of the characters, so the dial 26 is illuminated and the characters recorded thereon are printed on the color photographic paper 10 in the specified color. Burned into it.

In the above embodiment, the printing of color images has been described, but the present invention can also be used for printing black and white images. Furthermore, by partially developing different colors in the character recording area, it is possible to create a printed photograph in which characters of different colors coexist.

〔Effect of the invention〕

As explained in detail above, according to the present invention, a dial is placed on the CR1 display surface, the data of the CRT image that overlaps with the dial is erased, and instead, luminescence data corresponding to the color of the characters is stored in the memory. Since you can write on it, you can easily print characters in any color onto photographic paper. Further, according to the present invention, even small characters can be printed clearly without bleeding on the outline of characters or blurring due to poor adhesion. Furthermore, if the dial is illuminated with the CRT image as it is, the characters may not be illuminated partially or the characters may have a mottled color.However, in the present invention, the image data of the character recording area is Since the light emission data is rewritten, such problems do not occur. Furthermore, since the present invention uses a CRT as a light source, no special light source is required, and costs can be reduced accordingly.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram showing an example of an apparatus for implementing the present invention. FIG. 2 is a plan view of the character display. FIG. 3 is a block diagram showing an example of a CRT exposure system. FIG. 4 is an explanatory diagram showing a memory map of the frame memory. 10...Color photographic paper. 11...CRT 12...Display surface 13...Lens 20...Character display 22...Rotary ring 23...Feed screw shaft 25...Holder 26...Dial plate 35...・Shutter 46 ・ ・ ・ Mirror -47...Screen. Figure 1 Procedural amendment document March 27, 1986

Claims (4)

[Claims] (1) A dial with recorded characters is placed on a part of the display surface of the CRT, and when the image displayed on the CRT and the characters illuminated by the CRT are burned into a print using a lens, they are stored in the memory. This method of printing a CRT image with characters is characterized in that the CRT image data in the part overlapping with the dial plate is erased from the CRT image data, and luminescence data for illuminating the dial plate is written in its place. (2) The method for printing a CRT image with text as set forth in claim 1, wherein the dial plate is a lithographic negative on which transparent characters are recorded and is movable along the display surface of the CRT. (3) The character-engraved CR according to claim 2, wherein the screen negative is rotatable around the center of the CRT.
T image printing method. (4) The CRT is a monochrome CRT, and sequentially displays a monochrome image corresponding to a red image, a monochrome image corresponding to a green image, and a monochrome image corresponding to a blue image, and
Claim 3, characterized in that red, green, and blue filters are sequentially inserted into the optical path to convert the image into a monochromatic image, and the CRT image and characters are printed on photographic paper by sequential exposure of three colors. How to print a CRT image with text as described.