JPH04130882A - Video printer - Google Patents

Abstract

PURPOSE:To express a series of movements in one print picture by providing a multiple picture processing means to store one of input pictures from a picture source as a source picture, detecting a part differing the source picture from the input pictures from the picture source, and writing the picture in a second storing means at this time point of detection. CONSTITUTION:When there is a print instruction by a user, a switch 6 is closed to a side A, and the first picture of input picture signals is written in an input picture memory 5 and supplied to a source picture memory 7 and a print picture memory 10. When the next one picture of picture signals is written in the input picture memory 5 and stored, the initial picture is read out from the source picture memory 7 as the source picture and supplied to a differential detection part 8. The differential detection part 8 detects a differential amount and when this differential amount exceeds a threshold value set in advance, a picture multiplexing part 9 supplies an input picture data 6b to the print picture memory 10.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a video printer that inputs a moving image signal and obtains a printed image.

[Traditional technique 1i! ] In recent years, as shown in FIG. 14, a moving image signal from an image source 40 such as a video camera, television receiver, or video disk is input, and one screen is extracted from the moving image signal and printed on photographic paper. Various manufacturers have started to propose video printers 41 that can be used. Such a video printer is disclosed in, for example, Japanese Patent Laid-Open No. 1-208990.

In such a video printer, as shown in FIG. 15, an input analog moving image signal is converted into a digital moving image signal by an analog/digital converter 5, and image data for one screen is extracted and converted into an image. It is stored in the memory 43. Then, when a printing operation is started, the image data stored in the one-image memory 43 is read and supplied to the print section 45, where it is printed on photographic paper to obtain a print image 47. Further, the image data read from the image memory 43 is transferred to the digital/analog converter 4.
4, the signal is converted into an analog image signal, and is supplied to the display device w46 for image display. This allows you to check the image to be printed.

[Problems to be Solved by the Invention] By the way, since the conventional video printer described above extracts and prints one screen of a moving image signal, even if the moving image signal represents a moving image, The print image represents a momentary state of this series of movements.

For example, Figure 16 (a), (b), (c)
, If there is movement in the image as shown in Figure 16(d), the print image obtained by the video printer will be as shown in Figure 16(a).
It represents any one of the images from (d) to (d).

In this manner, conventional video printers have been unable to express image movement in printed images.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a video printer that solves these problems and allows a series of image movements to be expressed in a single print.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a first storage means for storing one of the input images from an image source as an original image, and a first storage means for storing one of the input images from an image source as an original image; a second storage means for storing an image, detecting a different portion between the input image from the image source and the original image, and writing the image portion of the input image at the time of this detection into the second storage means; An image multiplexing means is provided.

[Operation] Each time an input image is supplied to the second storage means, the image multiplexing means additionally stores a portion of the input image that is different from the original image onto the first stored image. Therefore, the image stored in the second storage means is an image in which changed portions of the input image are superimposed. When such multiple images are printed, the resulting print will represent a series of image movements.

[Example code] Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of a video printer according to the present invention, in which 1 is an image source, 2 is a video printer, 3 is a decoder section, 4 is an A/D (analog/digital conversion) section, and 5 is a block diagram showing an embodiment of a video printer according to the present invention. is the input image memory, 6 is the changeover switch, 7
is the original image memory, 8 is the difference detection section, 9 is the image multiplexing section, 1
0 is a print image memory, 11 is an image multiplex control section, 12 is a D/A (digital/analog conversion) section, 13 is an encoder section, 14 is a print section, 15 is a monitor device, and 16 is a print image.

In the figure, a moving image signal from an image source 1 is input to a video printer 2, and is first separated by a decoder 3 into signal components such as R, G, and B signals, or a luminance signal and a chroma signal. The output signal of the decoder section 3 is digitized by the A/D section 4 and then supplied to the input image memory 5.

The input image memory 5 is controlled by the control signal 11b from the image multiplexing control section 11, and stores one screen worth of input image signals digitized as described above, but every integer period of one screen period. is rewritten with the input image signal for one new image.

When the user issues a print instruction, the switch 6 is closed to the A side, and the first screen of input image signals is written into the input image memory 5. When this writing is completed, this one screen worth of image data is read out from the input image memory 5 and supplied to the original image memory 7 and print image memory 10 as initial image data 6a. Like the print image memory 10, these original image memories 7 are controlled by a control signal 11b from the image multiplexing control section 11, and store an image consisting of one screen's worth of initial image data as an initial image.

Now, assuming that the input image signal represents a scene in which a golf club is being swung, (1) in Fig. 2 (,)
) is the initial image in the original image memory 7, (1) in the figure (b) is the initial image in the input image memory 5, and (
, d) (I) are the initial images in the print image memory 1o, and they all have the same content.

When writing of the initial image in the original image memory 7 and the print image memory 10 is completed, the changeover switch 6 is switched to the B side.

When the image signal for the next screen is written into the input image memory 5 and the image is stored, this image is read out from the input image memory 5 as an input image, and in synchronization with this, the original image memory 7 is stored. The initial image (is read out as the original image. Here, "read out synchronously" means that the grass image data read out at the same timing from the input image memory 5 and the original image memory 7 is Δ with data at the same position
It means something. Also, the original image read out from the original image memory 2 at this time is the 21st! It is shown in (If) of I(a) and is an initial image. The input image read out from the input image memo 5 at this time is shown in (■) in FIG. 2(b).

The input image 0 image data (input image data) 6a read out from the input image memory 5 is supplied to the difference detection section 8 and the image multiplexing section 9 via a changeover switch, and the original image read out from the original image memory 7 is inputted. The image data (original image data) 7 a of No. 1 is supplied to the difference detection section 8 . The difference detection section 8 is controlled by the control signal 11a from the image multiplexing control section 11, and detects the amount of difference between the input image data 6a and the original image data 7a each time they are supplied, and this difference amount is set in advance. When the threshold value is exceeded, a detection signal 8a having a level of 171 #j is output.

The image multiplexing unit 9 receives the detection signals 8a of 1n from the difference detection unit 8.
The input image data 6b is supplied to the print image memory 10 only when the input image data 6b is output. The print image memory 10 also writes the input image data 6b from the image multiplexing section 9 in synchronization with the input image memory 52 and the original image memory 7 according to the control signal 11b from the image multiplexing control section 11. Therefore, the input image data 6b and Only this input image data 6b whose difference amount from the original image data 7a exceeds the threshold is written into the print image memory 1o.

Here, as mentioned above, the input image outputted from the input image memory 5 is shown in (U) of FIG. 2(b), and the original image outputted from the original image memory 7 is shown in FIG. 2(8). of (II
), the image (difference image) based on the input image data 6b output from the image multiplexing section 9 is the 21i-th
! ! It becomes as shown in (ff) of I(c). However, the second
In <n> of FIG. 2(c), the solid line is the difference between the input image of FIG. 2(b) and the original image of FIG. 2(a),
The broken line indicates the difference between the input image in FIG. 2(b) and the original image in FIG. 2(a), both of which are input image data 6.
This is due to b.

By rewriting such a difference image in the print image memory 10, the image shown in FIG. 2(d) is stored in the print image memory 1o.
From the original image shown in (I) of Fig. 2, (II) of Fig. 2(d)
As shown in FIG. 2, the image becomes the same as the input image shown in (II) of FIG. 2(b).

When the next input image indicated by (Tn) in FIG. 2(b) is stored in the input image memory 5 and read out, the same original image (as shown in FIG. 2(a) of(
(2))) are read out and supplied to the difference detection section 8, respectively.

Then, when the difference detection section 8 outputs the detection signal 8a of "1" as described above, the image multiplexing section 9 supplies the input image data 6b to the print image memory 1° at the timing of the detection signal 8a of "1n". do.

As a result, the difference image shown in (III) in FIG. 2(c) is supplied to the print image memory 1o, and this is rewritten in the print image memory 10.
Now, as shown in (III) in FIG. 2(d), the previous input image shown in (II) in FIG. 2(b) is added to the next input image ((in FIG. 2(b)). (2) A multiplexed image to which the differences of ()) are added is obtained. That is, this multiplexed image is a multiplexed image of the two input images indicated by (II L (m)) in FIG. 2(b).

Similarly, in the input image memory 5, (
The input images shown as IV) and (V) are sequentially written and read out, and in synchronization with this, (■) in FIG. 2(a).

When the original image is read out from the five-original image memory 7 as shown in (V), the print image memory 10 displays the original image as shown in FIG. 2(d).
As shown in (IV) and (V') of FIG.
The input image shown in (IV) of FIG. 2(b) is multiplexed on the multiplexed image shown in FIG.
) are multiplexed.

In this way, a multiple image is obtained in the print image memory 10 representing a series of moving images on the screen represented by the input moving image signal.

When images are multiplexed a predetermined number of times in the print image memory 10,
Alternatively, according to a user's instruction, image data of multiple images is read out from the print image memory 10 and sent to the print section 14.
A print image 16 is obtained by printing. The image data of the multiplexed image read out from the memory 10 is converted into analog signal components by the D/A section 12,
An image signal is generated by the encoder section 13 and sent to the monitor device 1.
5. This allows print images (multiple images)
can be confirmed. In the print image memory 10,
It is also possible to make it possible to read image data even when the image multiplexing operation shown in FIG. 2 is being performed. Therefore, with such image data, the monitor device 15
By monitoring images with , the user can confirm the multiplexed images and specify the number of times of multiplexing from the beginning of image multiplexing.

FIG. 3 is a block diagram showing a specific example of the difference detection section 8 in FIG. 1, and 81 is a difference calculator.

82 is a difference judge, 83 is a multiple judge, and 84 is a difference threshold register.

In the figure, input image data 6b and original image data 7a are supplied to a difference calculator 81, and the amount of difference (absolute value) between them is calculated. Here, assuming that the input moving image signal is separated into R, G, and B signals by the decoder section 3 of FIG. 1, the amount of difference is calculated for each of the R, G, and B signals. The obtained difference value is supplied to the difference determiner 82 and compared with a threshold value set in advance in the difference threshold value register 84 by the user or the like. The difference determiner 82 outputs a determination signal that is "1" when the manually input difference amount is larger than the threshold value, and is "ON" when the difference is opposite. Then, the threshold value is switched by the control signal 11b, and the above-described determination signal is output for each of the R, G, and B signals.

The multiplex determiner 83 determines whether the difference between the input image and the original image is large based on the determination signals for each of these R, G, and B signals, and outputs a detection signal 8a of '1' or '0'. .

This judgment criterion is that, for example, when only one judgment signal is "1", the difference is not large and the detection signal 8a is set to "O".
”, and when two or more judgment signals are “1”, the detection signal 8
Let a be “1”. However, the criteria for judgment are not limited to this, and include changes in brightness, hue, image pattern, and correlation with adjacent pixels in the pixel of the image data being compared or in the area that includes this pixel. Can be used.

FIG. 4 is a block diagram showing a specific example of the double-image multiplexing section 9 in FIG. 1, and 91 is a multiplexing switch.

In the figure, the one-image multiplexing section 9 is composed of a multiplexing switch 91. When the detection signal 8a from the difference detection section 8 is "1", the multiplex switch 91 closes to the A side to allow the input image data 6b to pass through, and when the detection signal 8a is "O", it closes to the B side to pass the input image data 6b. The image data 6b is blocked.

Note that the image multiplexing unit 9 may be provided with means for reducing isolated pixels due to noise or the like by averaging the multiplexed pixel with adjacent pixels when the amount of difference is large due to noise or the like.

FIG. 5 is a block diagram showing another embodiment of the video printer according to the present invention, and 17 is a CPU (arithmetic processing unit).
, 1B is RAM (random access memory), 19 is ROM (read only memory), 20 is bus,
Components corresponding to those in FIG. 1 are given the same reference numerals and redundant explanations will be omitted.

In FIG. 5, a ROM 19 stores system programs and constants such as differential thresholds. CPU1
7 is a RAM that executes the system program stored in the ROM 19 and performs input/output and arithmetic processing of each data.
Reference numeral 18 temporarily stores data set by the user, image data processed by the CPU 17, and the like. CPUI 7 and R
Exchange of data and addresses between AM18°ROM19, CPU17. RAM18. Data and addresses are exchanged between the input image memory 59, the original image memory 7, and the print image memory 10 via the bus 2o.

Next, the operation of this embodiment will be explained with reference to FIG.

When the CPU 17 executes the system program stored in the ROM 19, the digital moving image signal output from the A/D section 4 is transmitted through the input image memory 5,
is supplied to the original image memory 7 and the print image memory 10,
Input images are sequentially written to each. Such writing in the original image memory 7 and print image memory 10 is performed for each input image. Therefore, when an input image is supplied, it is rewritten with this, and this operation continues until a print operation is performed by the user. (Step S1.
S2).

When the user performs a print operation (step S
2) Writing of the input image in the original image memory 7 and print image memory 10 is completed, and the input image written last is saved as the original image.

At the same time, the input image next to this original image is stored in the input image memory 5 (step S3), and then the image data (input image data) of the stored input image is read out from this input image memory 5 (step S3). S4). In synchronization with this, the image data of the original image (original image data) is read out from the original image memory 7. These input image data and original image data are taken into the CPU 17, and a difference value between them is calculated (step S). And CPU17
Compare this difference value with the threshold value on the RAM 18 (step S), and if the difference value <threshold value, return to step S4, and if the difference value ≧ threshold value, check whether multiple processing should be performed or not. The determination is made based on the following (step S7). If the multiplex condition is not satisfied, the process returns to step S4, and if the multiplex condition is satisfied, the content of the corresponding address in the print image memory 10 is rewritten with the input image data from the input image memory 5 at that time (
Step S8). Such processing is performed on all input image data stored in the input image memory 5 (step SS).

When the above operations for the input image stored in the input image memory 5 are completed, the print image memory 10 has the following information:
A multiplexed image ((■) in FIG. 2(d)) in which different parts of the input image and the original image are superimposed on the original image is obtained, and if there is no instruction from the user to start printing (step S).

), the process returns to step S3 again, the input image is written into the input image memory 5, and a series of operations from steps 84 to S1° are performed. As a result, the multiple images obtained in the print image memory 10 are (m), (TV), (TV) in FIG. 2(d),
It changes like (V).

Thereafter, when the user issues an instruction to start printing (step S1°), multiple image data is read out from the print image memory 10 and supplied to the print unit 14, where printing is performed and a print image 16 is obtained (step S1). □
□).

Further, the print image memory 10 is constantly being read out, and the resulting multiple image data is converted into analog image data by the D/A section 12, and an image signal is generated by the encoder section 13 and supplied to the monitor device 15. Ru. Hence the monitor tribe! At step 15, the multiple images stored in the print image memory 10 can be confirmed.

In this manner, in this embodiment, a print image representing a series of moving images can be obtained, as in the embodiment shown in FIG.

In this embodiment, since the multiple conditions are set in the program program, the multiple conditions can be easily changed by simply changing the program.

Further, although the calculation of the difference amount and the multiprocessing are performed by the CPU 17, a DSP (digital signal processor) or the like that performs digital arithmetic processing at high speed can be used instead of the CPU 17.

By the way, in the embodiments shown in FIGS. 1 and 5, three image memories, the input image memory 52, the original image memory 7, and the print image memory 10, are used, but they are When multiple processing is possible or when the input image signal is a still image signal, the input image memory 5 is omitted, and in the embodiment shown in FIG.
In the embodiment shown in the figure, the CPU 17 may directly compare the input image data from the A/D section 4 and the original image data to horizontally compare the difference values.

Furthermore, although it is assumed that the same image as the original image in the original image memory 7 is stored as an initial image in the print image memory 10,
By making it possible to make the initial settings of the original image memory 7 and the print image memory 10 different, a multiplexed image in which changed parts of subsequent input images are superimposed on an arbitrary input image is stored in the print image memory 10. can be obtained.

FIG. 7 is a block diagram showing still another embodiment of the video printer according to the present invention, in which 21 is a position data storage unit, 22 is a playback control unit, 23 is an image playback device, 24 is a mode switch, and 25 is a playback unit. This is a scene designation section, and parts corresponding to those in FIG. 1 are given the same reference numerals and redundant explanations will be omitted.

In the figure, the mode switch 24 is closed to the A side when printing is not performed. When a user gives a reproduction instruction, the single-image reproduction device 23 is controlled by a control signal 22a from the reproduction control section 22.

Pre-recorded images are played back in sequence. These reproduced images are supplied to the monitor device f15 via the mode switch 24. This allows the reproduced image to be monitored.

When the user monitors this reproduced image and specifies a reproduced image as it is multiplexed, a designation signal 26a is supplied to the reproduction scene specifying unit 25 for each specification, and the reproduction scene specifying unit 25 instructs the reproduction control unit 22 to this effect. .

For each instruction, the playback control unit 22 stores data (recording position data) 21a representing the recording position of the image designated by the user on the image playback device 23 in the position data storage unit 21.
to be memorized.

After all the images desired by the user have been specified, when the user performs a print operation, the mode switch 24 is switched to the B side, and the playback control unit 22 sequentially records the recording position data from the position data storage unit 21 starting from the first recording position data. Position data 21a
is read out, and the image reproducing device 1j23 is thereby controlled. Therefore, the image reproduction device 23 sequentially reads only the images specified by the user from the front and supplies them to the decoder section 3 via the mode switch 24 as input images. These input images are processed in the same manner as in the embodiment shown in FIG. 1 to obtain a multiple image print 16.

As described above, in this embodiment, images to be multiplexed can be selected before performing a printing operation, further improving usability.

Note that in FIG. 7, an image reduction section 27 is provided.

When monitoring before printing, you can check the images specified to be multiplexed. That is, the mode switch 24
When the camera is closed to the A side and the image is monitored, the user selects the images to be multiplexed as described above as shown in FIGS. 8(a) and 8(b).

When specified as in (c) and (d), these images are sequentially reduced through processing such as decoding and A/D conversion in the image reduction unit 27, and are sequentially stored in different storage areas of the print image memory 10. Ru. Then, when the user issues an instruction to display the contents stored in the print image memory 10, the entire area in which each image is stored in the print image memory 10 is read out, and the read image data is transferred to the D/A unit 12. The signal is supplied to the monitor device 15 through the encoder section 13. As a result, on the monitor device [15], as shown in FIG. 8(e), the specified images shown in FIGS. 8(a) to 8(d) are reduced and displayed simultaneously. This instruction to display the contents stored in the print image memory 10 can be made at any time, thereby making it possible to check the relationship between the currently specified image and the previously specified images, improving usability.

In addition, as shown in FIG. 9, an image reduction unit 2 similar to the above
7, and an image selection section 28 capable of specifying images to be multiplexed in place of the reproduction scene specification section 25, which can be operated as follows.

That is, when the mode switch 24 is closed to the A side and the image reproducing device 23 reproduces images, a predetermined number of reproduced images are reduced in size by the image reduction unit 27 and stored in the print image memory 1o, as described above. .

After being stored, the data is read out and simultaneously displayed on the monitor device 15 as shown in FIG. The data is stored in the data storage section 21. When the user next performs a print operation and switches the mode switch 24 to the B side and the image reproducing device 23 operates, the user selects an image to be multiplexed while monitoring the screen on the monitor device 15. In response, the image selection unit 28 sends a command to the playback control unit 22 to retrieve recorded position data 21 for the selected image from the position storage unit 21.
a is read, the selected image is reproduced from the image reproduction device 2, and the decoder unit No. 3 receives the selected image.

be supplied.

In this way, it is possible to select an image to be multiplexed while comparing the previous and subsequent images, which greatly improves usability.

Furthermore, as shown in FIG.
Instead, a reproduction condition storage section 29 is provided which stores data such as the number of images to be multiplexed and the input image capture interval (time interval in units of fields or frames).
It can be set to work as follows.

That is, when the user specifies the number of images to be multiplexed and the single loading interval, the reproduction scene specifying section 25 instructs the reproduction control section 22 to store the number data and the loading interval data in the reproduction condition storage section 29.

After that, the mode switch 24 is closed to the A side and the image is reproduced on the monitor device 15! While monitoring the playback image from 23,
When the user specifies the first playback image to be multiplexed in the playback scene designation section 25, the mode switch 24 is switched to the B side, and the playback control section 22 follows the instructions from the playback scene designation section 25.
reads the number data and capture interval data from the reproduction condition storage section 29, and reproduces images from the image reproduction device i23 at time intervals determined by the capture interval data and by the number determined by the number data. This reproduced image becomes an input image to the decoder section 3, and as in the previous embodiment, a print image 16 is obtained in which these input images are multiplexed.

In this way, set the number of sheets and capture interval data,
All you have to do now is specify one image, and multiple images with the desired content will be printed, greatly improving usability.

Note that in the embodiments shown in FIGS. 7, 9, and 10, instead of using the difference detection section 8, image multiplexing section 9, etc., as in the embodiment shown in FIG. 6. FIG. 11 is a block diagram showing still another embodiment of the video printer according to the present invention, in which 30 is an image reduction section;
Reference numeral 1 denotes a reduced image memory, and 32 an image enlarging section. Portions corresponding to those in FIG. 1 are given the same reference numerals and redundant explanations will be omitted.

In the figure, sequential input images 4a output from the A/D section 4 are reduced by an image reduction section 30, and a reduced image memory 31
supplied to When a user performs a print operation, the reduced image memory 31 stores a predetermined number of reduced input images at a predetermined time interval among the supplied reduced input images. Also.

Initially, the changeover switch 6 is closed to the A side, and the input reduced image to be stored first in the reduced image memory 31 is supplied from the changeover switch 6 to the original image memory 7 and the print image memory 10, and is stored as the original image. .

When the writing in the reduced image memory 31 is completed, the changeover switch 6 is closed to the B side, and the reduced input images are read out from the reduced image memory 31 in the order in which they were written, and in synchronization with this, the reduced input images are read out from the original image memory 7. The original image thus obtained is read out, and the same processing as in the embodiment shown in FIG.

After that, when the user instructs to start printing.

The multiplexed image 10a is read out from the print image memory 10, enlarged by the image enlarging section 32, and then sent to the printing section 14.
supplied to As a result, the print image 16 of the multiple image
is obtained.

Note that the original image memory 7 and the print image memory 1° only need to have a capacity for one reduced image. The image enlarging section 32 performs processing such as filtering to interpolate pixels lost in the image reducing section 3o, so that a print image 16 with good image quality can be obtained.

Further, FIG. 12 shows the flow of the above processing.

As described above, this embodiment provides the same effects as those of the previous embodiments. Moreover, since input images to be multiplexed are stored in memory (reduced image memory 31) in advance, image signals of received broadcast programs and video signals from VTRs that cannot repeatedly reproduce image signals of the same field or frame, etc. Even if the video signal is from the image source 1 which cannot repeatedly output the same image, a multiplexed image of a desired plurality of images can be obtained from this video signal.

Note that instead of the reduced image memory 31, an image memory with a large capacity (for example, an optical disk device or a magnetic disk device) that can store a predetermined number of unreduced input images may be used; in this case, the image reducing section 30 and the image enlarger 32 are no longer necessary.

However, it goes without saying that the original image memory 7 and print image memory 1o also have a capacity for one unreduced image.

Further, the reduction ratio of the image reduction unit 30 and the enlargement ratio of the image enlargement unit 32 may be changed by user operations. This allows you to change the size of the print image depending on the design of the input image or the purpose of multiple images.
Usability is further improved.

FIG. 13 is a block diagram showing still another embodiment of the video printer according to the present invention, in which 33 is an image compression section;
4 is a compressed image memory, and 35 is an image decompression unit, and parts corresponding to those in FIG. 1 are given the same reference numerals and redundant explanations will be omitted.

In the same figure, the input image output from the A/D unit 4 is supplied to the image compression unit 33, and image compression processing is performed by compressing the amount of data.As the image compression method, previous value prediction,
A method that combines a transform such as a discrete cosine transform or a Fourier transform with fixed-length or variable-length encoding can be used.

The compressed input image outputted from the image compression section 33 is supplied to the compressed image memory 34, and as in the embodiment shown in FIG. 11, a predetermined number of compressed input images are stored together with the user's print operation.

At the same time, the compressed input image that is first stored in the compressed image memory 34 is expanded by the image expansion section 35 to become an input image with the original amount of data. Memory 7 and print image memory 10
and stored as the original image memory.

When the writing in the compressed image memory 34 is completed, the changeover switch 6 is closed to the B side, and the compressed input images are read out from the compressed image memory 34 in the order in which they were written, and after being decompressed by the image decompression unit 35, the changeover switch 6 is closed. The signal is supplied to the difference detection section 7 and the image multiplexing section 8 via. In addition, in synchronization with this, the original image is read out from the original image memory 7, and multiplex processing similar to the embodiment shown in FIG. 1 is performed to obtain a multiplexed image in the print image memory 10.

In this way, this embodiment also achieves the same effect as the embodiment shown in FIG. 11, but since image compression and expansion are used to store a plurality of input images in the compressed image memory 34, Compared to the embodiment shown in FIG. 11, deterioration in image quality can be reduced.

Note that also in the embodiments shown in FIGS. 11 and 13,
As in the embodiment shown in FIG. 5, it is also possible to perform image multiplexing using arithmetic processing means such as a CPU.

Further, in each of the above embodiments, image multiplexing is applied to a video printer, but the present invention is not limited to this, but can also be applied to television receivers, VTRs, video disc players, video floppies, etc. Needless to say.

[Effects of the Invention] As explained above, according to the present invention, it is possible to make a series of movements of a moving image appear on a single print, and the user can see dramatic changes in the image at a glance. You can see it.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of a video printer according to the present invention, FIG. 2 is a diagram showing the operation of this embodiment, and FIG.
1 is a block diagram showing a specific example of the difference detection section in FIG. 1, FIG. 4 is a block diagram showing a specific example of the image multiplexing section in FIG. 1, and FIG. 5 is a block diagram showing a specific example of the image multiplexing section in FIG. 1. 6 is a flowchart showing the operation of this embodiment; FIG. 7 is a block diagram showing still another embodiment of the video printer according to the present invention; FIG.
The figure shows the image display operation in this embodiment. 9 to 11 are block diagrams showing still other embodiments of the video printer according to the present invention, and FIG.
FIG. 13 is a block diagram showing still another embodiment of the video printer according to the present invention, FIG. 14 is a diagram showing how the video printer is used, and FIG. 15 is a conventional FIG. 16 is a block diagram showing an example of a conventional video printer. 1...Image source, 2...Video printer, 5...Input image memory, 7...Original image memory, 8...Difference Detection section, 9...
Image multiplexing unit, 10...Print image memory, 14
...Print section, 16...Print image, 21...Position data storage section, 22...
・Reproduction control unit, 23... Image reproduction device, 25.
...Reproduction scene specification section, 28... Image selection section, 29... Playback condition storage section, 3o...
・Image reduction unit, 31... Reduced image memory, 32.
...Image enlarging section, 33... Image compression section,
34... Compressed image memory, -35... Image decompression unit. Figure 3 Figure 6 (b) Figure i6 (C) (d)

Claims (1)

[Scope of Claims] 1. A first storage means that stores one of the images supplied from the image source as an original image and outputs the original image every time an input image is supplied from the image source; a second storage means for storing an image having the same content as the original image; a second storage means for comparing the input image and the original image to detect a different image portion; and detecting a different image portion from the input image; and an image multiplex processing means for writing an image portion into the second storage means, and configured to be able to print multiple images of sequential input images obtained in the second storage means. video printer. 2. Claim 1, further comprising a third storage means into which the input image is sequentially written and read, and the image multiplexing means combines the input image read from the third storage means and the original image. Video printers featured in comparison. 3. According to claim 1 or 2, the image source is an image reproduction device, and reproduction scene designation means for specifying a reproduction image to be multiplexed among the reproduction images from the image reproduction device as the input image; playback position storage means for storing position information on the image playback device of the playback image designated by the playback scene designation means; and storage of position information for all designated playback images in the playback position storage means. and a reproduction control means that reads the position information from the reproduction position storage means to control the image reproduction device and sequentially reproduces the images designated by the reproduction scene designation means. video printer. 4. In claim 1 or 2, the image source is an image reproducing device, and a display means for reducing and simultaneously displaying a predetermined number of reproduced images from the image reproducing device; and a reproduction displayed by the display means. an image selection means for selecting an arbitrary reproduction image among the images; a reproduction position storage means for storing position information of the reproduction image selected by the image selection means in the image reproduction apparatus; After storing the position information for all designated playback images in the playback position storage means, the position information is read from the playback position storage means to control the image playback device and display the images specified by the playback scene designation means. A video printer characterized in that it is provided with a reproduction control means for sequential reproduction. 5. According to claim 1 or 2, the image source is an image reproduction device, and reproduction condition storage means stores reproduction condition information representing an arbitrarily set number of images to be reproduced from the image reproduction device and a reproduction interval. and a reproduction scene specifying means for specifying one of the reproduction images from the image reproduction apparatus, and a reproduction scene specifying means for specifying one of the reproduction images from the image reproduction apparatus, and a reproduction condition specified by the reproduction scene specifying means and according to the reproduction condition stored in the reproduction condition storage means. A video printer comprising a reproduction control means for reproducing an image from an image reproduction device. 6. Claim 1, further comprising: an image reduction means for reducing the input image; and a reduced image storage means for storing a predetermined number of reduced images output from the image reduction means, and the reduced images are stored in the first storage means. The original image is reduced by the image reduction means, and the reduced images sequentially read out from the reduced image storage means are used as input images of the image multiplexing means, and the reduced images are obtained by the second storage means. 1. A video printer comprising: an image enlarging means for enlarging a multiplexed image; and a configuration capable of printing the multiplexed image enlarged by the image enlarging means. 7. Claim 1, further comprising: image compression means for data-compressing the input image; compressed image storage means for storing a predetermined number of compressed images output from the image compression means; 1. A video printer comprising: image decompression means for data decompressing a compressed image; and an image read from said image decompression means is used as an input image of said image multiplexing means. 8. Claim 1, 2, 3, 4, 5, 6 or 7, wherein the image multiplexing means rewrites the image portion of the input image with the stored content of the corresponding storage location in the second storage means. A video printer featuring