JPH1098675A - Image editing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to perform fine adjustment of a video reproducing time without causing visual incongruity. SOLUTION: A changed amount calculation means 2 calculates degree of change between successive frames of a video file 1, e.g. intensity of a video motion and set the value as the changed amount. A changed amount display means 3 displays the changed amount calculated by the changed amount calculation means 2 on a display screen of a display. An operator inputs a processing request in which a part with much changed amount is specified as a processing object area by using a processing request inputting means 4. The processing request contains a command of processing contents whether the processing to be performed is insertion or deletion and number of frames to be processed. A time adjusting processing executing means 5 specifies the instructed number of the frame to which the specified processing is to be performed from the processing object area of the video file 1 and performs the processing in accordance with the processing request. As the processing result, an image file 6 after adjustment in which time is adjusted by a few frames is generated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image editing apparatus capable of converting video information into a digital signal and storing the same, and more particularly to an image editing apparatus for adjusting the length of video information to a predetermined time.

[0002]

2. Description of the Related Art In a conventional TV program creation, a program is often created so as to fit in a certain time. For a drama or the like, it is common practice to take a picture by assuming a predetermined time using a container or the like, or to re-edit a VTR (video tape recorder) tape that has been finally recorded to fit the predetermined time.

For example, the appearance of a scene before or immediately before the theme song of a TV drama is an important factor. Except for TV dramas, the same applies to end scenes in sports programs.
These scenes need to fit in a certain time.
However, what seems to be OK at the time of shooting may be too short or too long at the time of final editing. For example, there is a case where the main character of the drama has an action and a face up, and the action time is shorter than expected and the face up is slightly longer. Also, in the end scene of the sports program, even if the end time is adjusted and the slow speed is adjusted so as to match the predetermined time, the last still image (soccer goal scene or baseball game) may be slightly out of time. Home run scene) may be too long. Alternatively, the main character's face up or the last scene of the sport may be too short.

[0004] In these cases, if it is possible to take the picture again, it is sufficient to take the picture again. However, in many cases, it is not possible to take the picture again because the performer's schedule does not match, and the VTR must be re-recorded. Editing will be performed. VT
Adjustment of the time by re-editing the R is performed by adding or deleting an arbitrary image from the tape of the VTR using an image editing apparatus. For example, if the position of the start image is shifted back and forth, the length of the last scene can be adjusted.

[0005]

However, when a series of operations are involved even if an attempt is made to edit, the start image cannot be moved back and forth too much, and eventually some scene becomes unnatural. Problems arise. That is, it was difficult to adjust the time of the video once recorded without giving the appearance a strange feeling.

Moreover, the time to be adjusted is often very small. For example, there is a case where it is desired to adjust several frames (frames) for a scene of 15 seconds. With a conventional image editing apparatus, it is difficult to make such minute adjustments in units of several frames.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide an image editing apparatus capable of performing fine adjustment of a video reproduction time without making the user feel uncomfortable.

[0008]

According to the present invention, there is provided an image editing apparatus capable of converting video information into a digital signal and storing the converted digital information. Change amount calculating means for calculating the amount, display means for displaying the change amount between each image on a display device, processing for designating processing contents, designating a processing target area, and inputting a processing request including the number of processed images Request input means, upon receiving the processing request, specifies the target image to be actually processed by the number of processed images from the processing target area of the video file, and processes the target image according to the processing content. And a time adjustment processing executing means for generating an adjusted video file by performing the adjustment.

According to this image editing apparatus, the change amount indicating the degree of change between successive images of the video file whose length is to be adjusted is calculated by the change amount calculating means. The calculated change amount is displayed on the display device by the change amount display means. When a processing request including the specification of the processing content, the processing target area, and the number of processed images is input from the processing request input unit, the image editing apparatus causes the target image to be actually processed to be processed from the processing target area of the video file. Specify only the number of processed images,
A process according to the processing content is performed on the target image to generate an adjusted video file.

[0010] Thus, the operator can determine a portion having a sharp movement from the amount of change displayed on the display device, and can input a processing request specifying the portion as a processing target area.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing the principle of the present invention. The image editing apparatus according to the present invention provides the image editing apparatus according to the present invention, in which the amount of change (α) between successive images
_1, alpha _2, and the change amount calculation means 2 for calculating a ...), the variation display means 3 for displaying the calculated amount of change on the display device
Request input means 4 for inputting a processing request for time adjustment
A time adjustment processing execution unit 5 that performs processing on the video file 1 in response to the processing request and generates an adjusted video file 6
It is composed of

The video file 1 is video digital data that needs to be adjusted by several frames in order to match the target recording time (hereinafter, data for each frame of the video file is referred to as image data. Do). The change amount calculating means 2 calculates the degree of change between successive frames of the video file 1, that is, the intensity of the motion of the video, and indicates the numerical value. A numerical value indicating the degree of this change is defined as a change amount. This change amount is obtained between all the frames. The change amount display means 3 displays the change amount calculated by the change amount calculation means 2 on a display screen of the display device. For example, the time is displayed on the horizontal axis and the change amount is displayed on the vertical axis using a graph. Thereby, the degree of the intensity of the movement for each time is indicated by a numerical value.

The operator uses the processing request input means 4 to input a processing request in which a part having a large movement, that is, a part having a large amount of change is designated as a processing target area. This processing request includes an instruction of the processing content whether the processing to be performed is insertion or deletion,
It contains the number of frames to be processed. For example, when the video file 1 is short of the target recording time by five frames, a processing request to insert five frames is input. The time adjustment processing execution means 5 includes the video file 1
The specified number of frames to be subjected to the predetermined processing are specified from the processing target area. Then, the specified frame is processed according to the processing request. Specifically, in the case of an insertion processing request, a copy of the specified frame is inserted into the next position of the frame, and in the case of a deletion processing request, the specified frame is deleted. As a result of such processing, an adjusted video file 6 is generated. The adjusted video file 6 is a video file having a length corresponding to a predetermined time, in which an image of several frames is inserted or deleted for a portion of the video file 1 in which movement is sharp.

Thus, the intensity of the operation is indicated by a numerical value (change amount), so that the portion where the operation is intense can be easily identified, and the screen is copied or deleted in a frame unit so as not to make the user feel uncomfortable. Can be easily performed.

FIG. 2 is a block diagram showing an example of a hardware configuration of the image editing apparatus according to the present invention. Image editing device 10
Is provided with a control unit 11 that is in charge of overall control of the present control device. The control unit 11 is a central processing unit (hereinafter, referred to as a CPU) composed of a microprocessor for controlling.
12, a work memory 13 for temporarily storing information necessary for the operation of the CPU 12, a capture board 14 for converting externally input image data into digital data and capturing the same, and a connection between the CPU 12 and external devices. And a plurality of interface circuits 15 to 17 for performing the above. The work memory 13 particularly holds position information and level information of the image file.

The capture board 14 is capable of converting an externally input analog image / sound signal into a digital signal and taking it into the control unit 11, and also converts a digital video file in the control unit 11 into an analog signal. Can also be converted and output. The capture board 14 includes a video tape recorder (hereinafter, V
21 (referred to as TR). The VTR 21 plays back the video recorded on the tape and capture board 1
4 is recorded on the tape.

Specifically, the interface circuit 15 has
This is an S-422 interface circuit. The VTR 21 is connected to the interface circuit 15. When the CPU 12 outputs a control signal via the interface circuit 15, operations such as reproduction and recording of the VTR 21 are controlled.

Specifically, the interface circuit 16
CSI (Small Computer System)
(Interface) interface circuit. A hard disk device (hereinafter, referred to as HDD) 18 is connected to the interface circuit 16. The hard disk device 18 is a storage medium for storing various data including a video file to be edited and a video file after re-editing.

The interface circuit 17 is a general-purpose interface circuit for controlling an external device, and is specifically an RS-232C interface circuit. An input / output device 19 is connected to the interface circuit 17. The input / output device 19 is a CRT (Cathode)
(Ray Tube) and an input device such as a keyboard. This input / output device 19
Has a function of displaying information from the CPU 12 on the screen of the display device via the interface circuit 17 and transmitting input information input by operating the input device to the CPU 12.

Using the image editing apparatus 10 having such a configuration, first, a video to be edited is stored in the HDD 18 from the VTR 21 as a digital video file. To do so, the operator operates the input / output device 19 and inputs a command to capture an image. CPU1 that received the command
1 controls the VTR 21 via the interface circuit 15 to reproduce the video of the video tape set in the VTR 21. The reproduced video is captured by the capture board 14
The data is sequentially converted into digital data when the data is taken in via the interface, and is stored in the HDD 18 via the interface circuit 16. When the operator inputs a stop instruction from the input / output device 19, the CPU 12 that has received the instruction inputs the instruction to the VTR 21.
Is stopped, and the file of the image data stored in the HDD 18 is closed.

Next, the operator uses the input / output device 19 to specify whether the editing to be performed on the entire stored video file is insertion or deletion and the number of frames to be inserted or deleted. input. CP that received the input
The U12 extracts the image data of the video file in the HDD 18 frame by frame and converts it into data in a format that can be processed by the CPU 12. Here, the data is converted into bitmap data (bitmap image). Specifically, each frame is represented by three values of RGB (values indicating shades of red, green, and blue). Each value at this time can take a value from 0 to 255. The number of dots in the visible portion is 640 dots wide and 480 high.
Dots.

Then, the CPU 12 accumulates image data of bitmap images for two consecutive frames on the work memory 13 and calculates a difference between RGB of each pixel. Then, a value obtained by summing the differences of all the pixels is used as an index indicating the degree of change (change amount) of the image. The obtained value is called a level value. Such calculation of the level value is performed for all the frames in the image file.

In the case of a TV program or the like, the image greatly differs due to camera switching or the like, and the level value peaks at the moment of the switching. That is, by finding a point where the level value reaches a peak, it is possible to determine the switching position of the scene. Therefore, the CPU 12 displays the calculation result of the level value on the display screen of the input / output device 19 to indicate the change in the level value with time to the operator.

FIG. 3 is a diagram showing an example of a display screen of the level value of the image data. In this figure, the display screen displays a graph 31 with the horizontal axis representing time and the vertical axis representing level values. The time axis shows the time at which each image appears when the beginning of the video file is 0. Below the time display, a time code (Time Code) is displayed. The time code is time information for identifying each image, and is recorded together with the image on a video tape. This time code is composed of hour, minute, second, and frame number. The frame number is
NTSC (National Television)
System Committee) In the case of the signal form,
Take values from 0 to 29.

Below the graph 31, an "add" button 3
2. “Execute” button 33 and “End” button 34
Is provided. An arbitrary area on the graph 31 is selected by a mouse operation, and an arbitrary area can be selected by clicking the “Add” button 32 with a mouse.
When the "execute" button 33 is clicked on with a mouse, processing for the number of frames specified for each scene is performed. When the “end” button 34 is clicked on with a mouse, the editing process ends.

Here, a threshold value (threshold value) 31a can be used to specify a reference value at which camera switching (scene switching) is considered to be performed. Graph 3
In FIG. 1, a threshold value 31a of the level value is indicated by a dotted line. The CPU 12 has a threshold 31
It is determined that the camera has been switched at the peak of the level value of the portion exceeding a, and the video file is divided for each scene. The level value threshold 31a is
By moving the arrow in the right scroll bar 31b, the operator can set an arbitrary position.
This is because it is difficult to mechanically determine whether the scene is actually switched at that part.

When the video file is divided into several scenes, bars 31c, 31d, 31e corresponding to each scene are obtained.
Is displayed at the top of the graph 31. The operator clicks on the bar corresponding to the scene to insert or delete the screen with the mouse. Further, the operator inputs the number of frames to be processed in the scene. When receiving the designation of the scene to be processed and the number of frames, the CPU 12 displays detailed information of the level value of the image data of the selected scene on the screen.

FIG. 4 is a view showing a display example of a level value for each scene. As shown in the figure, the graph 41 indicating the level value of each scene has a larger time-axis interval than the graph 31 of FIG. At the top of the graph 41, the number of frames to be processed as a whole (in the figure, the insertion processing is 8 frames),
A display unit 42 is provided for indicating the number of frames to be processed in the scene (in the figure, three frames). The display section 42
Below, there is provided a display unit 43 of the number of frames to be processed in this scene. "End" is displayed below the graph 41.
Button 44 is clicked with a mouse, and the screen of FIG. 4 is closed, and the screen of FIG. 3 is displayed again.

Also in the screen of FIG. 4, the threshold 41a is indicated by a dotted line. The threshold 41a on this detailed screen is a reference for determining an area in the selected scene where an image can be inserted or deleted. That is, the CPU 12 sets the threshold 41a
It is determined that the selected regions 41c and 41d (which are indicated by oblique lines in the drawing) are likely to be able to process regions having higher level values. The threshold 41a can be set at an arbitrary position by the operator by moving an arrow in the right scroll bar 41b as in FIG. On the screen of FIG. 3, an arbitrary area is designated by a drag operation with a mouse (an operation of moving a mouse cursor while holding down a mouse button), and an “add” button 3 is displayed.
The selection area can also be specified by clicking 2. Bars 41e and 41f corresponding to the selected area are displayed above the selected area on the screen of FIG. The operator sets the number of frames ("2" and "1" are set in the figure) to be processed for the corresponding selected area in the bars 41e and 41f.

As described above, the operator can determine the selection area that can be processed and specify the number of frames to be processed there. This is because it can be inferred that a portion having a large level value is a suitable place for processing, but it is difficult to mechanically determine whether the place is actually suitable. The difference between the ideal level value change and the actual level value change will be described below.

FIG. 5 is a diagram showing an ideal level value change and an actual level value change. (A) is a diagram showing a state of an ideal level value. As shown in the figure, an ideal level value curve 41g is a state in which the line connecting the level values is convex. With such a level value, frames to be processed can be evenly distributed. Moreover, the changes in the level values are caused by changes in the target to be noted, and it is desirable that no background image is included.

However, actually, it is sometimes difficult to make a mechanical judgment. (B) is a diagram showing a state of an actual level value. As shown in the figure, even when many level values are close to the ideal curve 41g, if the level values are partially reduced, the level values may be reduced even when the frame processing can be actually performed. In some cases, it is determined that the data should not be processed because of intermittent processing.

When the background is moving (for example, trees swaying in a strong wind) and the image is changing, even if the part of the viewer who watches the video (for example, the hero of the drama) is not moving, the calculation is not performed. May increase, and may become an ideal value as shown in FIG.

As described above, since it is difficult to specify a mechanical area by numerical calculation, an operator can specify an area and the number of frames. The operator who has specified the area and the number of frames to be processed on the screen of FIG. 4 clicks the “end” button 44 with the mouse and returns to the screen of FIG. Then, after specifying the selection area and the number of frames to be processed for all scenes, the “execute” button 33 is clicked with the mouse.
The CPU 12 that has recognized the input of the “execute” button 33
The number of selected regions and the number of frames in each region are obtained, and an operation for distributing frames to be processed in the selected region is performed.

FIG. 6 is a diagram showing the distribution of frames to be processed. In this figure, there are three selection areas 51 to 53, and the number of frames to be processed is 2 frames, 1
Frame 5 and frame 5 are indicated. In the figure, "●"
Indicates the frame to be inserted or deleted.

Here, the minimum processing frame interval can be specified by setting the environment when determining the frame to be processed. This is because the video after the time adjustment may become unnatural unless certain conditions are set according to the environment setting. For example, if a plurality of frames are inserted into one frame, consecutive frames are deleted, or insertion is performed at a short frame interval such as every one frame, the picture becomes unnatural. .

Therefore, by designating the minimum processing frame interval as one frame in the environment setting, an error can be displayed when consecutive frames are to be processed, and the operator can be warned. For example, the selection area 5 in FIG.
In No. 3, since five frames are to be processed in succession, it is an error target. The operator who has confirmed the error display determines whether or not to continue the process.

If the number of frames to be processed is specified to be larger than the number of frames in the area, in the case of deletion processing, all frames in the area are deleted. And in the case of insertion processing, it becomes necessary to insert two or more identical frames,
The result is an unnatural image. In such a case, the actual insertion or deletion processing is not performed as an error.

When the calculation of the frame to be processed is completed (including the case of continuing due to an error), the CPU 12 creates a table indicating the correspondence between the time record and the number of frames, and stores the table in the HDD 18. Then, a new video file is created using the table.

FIG. 7 is a diagram showing a situation of creating a video file based on a table. First, a table 61 including a time record of each image and information on the number of frames is prepared. Here, the number of frames is set to “1” when it is not specified as a processing target frame by calculation, and is set to “0” when it is specified as a deletion processing target. In the case where it is specified as a target of insertion processing, “2” is set. That is, when the number of frames is 1, the copy is performed as it is, but when the number of frames is 0, the copy is not performed (corresponding to the deletion process).
In this case, it means that the data is copied once and then copied again (corresponding to the insertion process).

After that, the CPU 12 takes out the video file 62 before the time adjustment and copies it to another video file 63 one frame at a time. In the figure, a video file 62,
In each of the 63 frames, the frame number of the frame is shown. At this time, based on the information on the number of frames described in the table 61, another video file 63
This is performed while judging whether or not to copy one frame and whether to copy one frame again. That is, the case where copying is not performed corresponds to a deletion process, the case where copying is performed only once corresponds to a case where no processing is performed, and the case where one frame is copied again corresponds to an inserting process. Thus, another video file 63 is generated.

Then, the CPU 12 sets the VTR 21 in the recording state via the RS-422 interface circuit 15, and at the same time, converts the created video file 63 into an analog signal by the capture board 14 and outputs it. By doing so, a video tape of an image extended / reduced for the number of frames expected is obtained.

Hereinafter, a protocol for controlling the VTR 21 will be briefly described. FIG. 8 is a diagram showing a protocol of the VTR. FIG. 8 shows, as VTR protocols, a protocol 71 for issuing a command to the VTR and a protocol 72 for sense return for the command, and have the same configuration. That is, these protocols 71 and 72 are
Starts with X (start of text 0x02), BC
(Byte count, the number of bytes from the next CMD to the last CS), CMD (indicating the type of command), information corresponding to the command, and CS (checksum,
(The value in which the lower one byte of the sum of the bytes BC to CS is 0).

Here, for example, the command for VTR is 0x
01, CUEUP (in this case, Cueup position information is added as additional information), 0x02, PLAY, 0x03, REC, ..., 0x60
Is SENSE STATUS, and 0x61 is SENSE TC. As a sense return for these commands, the VTR command is 0x
In the case of 70, it is a status notification (addition of detailed information), and in the case of 0x71, it is a TC notification (addition of a TC value). The CPU 12 controls the VTR 21 using such a command.

Here, STX, BC, CMD, C
S is 1 byte each. The two-digit number after 0x indicates that the number is in hexadecimal notation. For example, 0x0A indicates 10 in decimal.

Next, a processing procedure of the CPU 12 for calculating a position of a frame to be processed for a specified number of frames from a region to be processed is specified.

FIG. 9 is a flowchart showing a procedure for calculating a frame to be processed. This processing is performed when the “execute” button 33 is pressed on the screen of FIG.
Reference numeral 12 denotes a process to be executed, and at the same time, the table 61 shown in FIG. 7 is created. [S1] Variables are defined. That is, the number of screens in the area is “m”, the time code of the first screen is “t_top”,
The number to be inserted / deleted is “n”, and the minimum number of frames in the environment setting is “mini”. [S2] It is determined whether m> n is true or false.
The process proceeds to step S4, and if not, the process proceeds to step S3. [S3] Since a natural image cannot be generated when n ≧ m, an error message is displayed and the process is terminated. [S4] The number of screens "m" in the area is divided by the number "n" to be inserted / deleted, and a value excluding the remainder is calculated ([] in the figure is a Gaussian symbol, and The value excluding the remainder is shown). The calculation result is “Δn”. [S5] It is determined whether Δn <mini is true or false. If it is correct, the process proceeds to step S6; otherwise, the process proceeds to step S8. [S6] If Δn is smaller than mini, the condition of the minimum number of frames in the environment setting cannot be satisfied, so that an error message is displayed and the operator is prompted to input whether to continue or end. [S7] The operator's input is judged, and if the input is to execute, the process proceeds to step S8, and if the input is to end, the process ends. [S8] It is assumed that t = t_top. [S9] t is set in the item of the time record in the table, and 0 is registered for the corresponding number of frames if it is deleted, and 1 is registered if it is inserted. [S10] It is assumed that n = n-1. [S11] It is determined whether or not n = 0. If it is correct, the process ends. If not correct, proceed to step S12. [S12] m = m-1. [S13] It is determined whether or not m = 0. If it is correct, the process ends. If it is not correct, the process proceeds to step S14. [S14] It is assumed that t = t + 1. [S15] It is determined whether or not t can be divided by t_top. If it is divisible, the process proceeds to step S9. If it is not divisible, the process proceeds to step S16. [S16] t is set in the item of the time record in the table, and 1 is registered in the corresponding frame number.

By performing such processing, a frame to be subjected to insertion or deletion processing is uniformly determined in the selected area. As described above, by calculating the numerical value indicating the amount of change between successive images and displaying the amount of change on the screen, it is possible to easily determine a portion where the operation is severe. Then, since the operator can insert or delete the frame unit by designating the portion where the movement is intense, the operator can easily fine-tune the length of the moving image file so as not to make the user feel uncomfortable. .

In the above description, the operation of the VTR 21 depends on the operation of the input / output device 19 by the operator. However, since the time information is recorded on the video tape, the start position and the end position are determined. The image can also be captured by designating the time information recorded on the video tape.

In the above description, the scene is decomposed by the peak of the level value. However, it is known that the scene can be freely decomposed by the operation of the operator. Therefore, it is also possible to display a screen as shown in FIG. 4 for an arbitrarily disassembled scene and insert or delete a frame.

In the above description, the processing of the image
Although performed by B, other values can also be used.
Furthermore, a file in a form in which a video file is compressed in frame units (specifically, Motion JPEG) can be supported.

In the above description, the level value processing is performed over the entire screen. However, it is also possible to specify a partial area of the screen and calculate the level value only for the specified area. Good. For example, a part of the screen is a central part where the face is raised. Alternatively, by further applying, the target area can be moved for each screen.

In the above description, NTSC is assumed. However, in the case of a non-drop frame, an actual time record is stored in a table after calculation of the number of processed frames. Available. Naturally, PAs other than NTSC
L (Phase Alteration Line)
It is easy to cope with such signal forms. Similarly, the number of dots on the screen may be different from the above example, and it is possible to support other TV systems.

In the above description, the area is specified,
When calculating the position of the frame to be processed according to the number of frames specified in the area, select the head of the area,
The location to be processed was specified by an integer value that is equal in that area. In other words, the equalization is performed by using an integer, but the location to be processed may be determined using another method. For example,
It is also possible to select the center of the region and specify a portion to be processed by an equal integer value along both sides, or a method of specifying a random number instead of an equal value. Alternatively, a plurality of these methods may be combined or a plurality of methods may be prepared, and a method to be used may be determined according to an instruction of an operator.

In the above description, the number of frames that can be processed must not exceed the number of frames in the designated area. This is natural in the case of deletion,
In the case of insertion, processing beyond the number of frames is possible, and such a measure can be taken.

[0056]

As described above, according to the present invention, the amount of change is calculated from successive images, and the intensity of the operation is represented by a numerical value. Fine adjustment of time so that the user does not feel uncomfortable can be efficiently performed.

[Brief description of the drawings]

FIG. 1 is a principle configuration diagram of the present invention.

FIG. 2 is a block diagram illustrating a hardware configuration example of an image editing apparatus according to the present invention.

FIG. 3 is a diagram illustrating an example of a display screen of a level value of image data.

FIG. 4 is a diagram showing a display example of a level value for each scene.

FIG. 5 is a diagram showing a change in an ideal level value and a change in an actual level value; (A) is a diagram showing an ideal level value state, and (B) is a diagram showing an actual level value state.

FIG. 6 is a diagram showing a distribution state of frames to be processed.

FIG. 7 is a diagram showing a state of creating a video file based on a table.

FIG. 8 is a diagram showing a VTR protocol.

FIG. 9 is a flowchart showing a procedure for calculating a frame to be processed.

[Explanation of symbols]

1 ... video file 2 ... change amount calculation means 3 ... change amount display means 4 ... processing request input means 5 ... time adjustment processing execution means 6 ... adjusted video file

Claims (5)

[Claims] 1. An image editing apparatus capable of converting video information into a digital signal and storing the digital signal, wherein: a change amount calculating means for calculating a change amount indicating a degree of change between successive images of the video file; Display means for displaying the amount of change on a display device; processing request input means for inputting a processing request including specification of processing content, specification of a processing target area, and the number of processed images; and receiving the processing request, the video file A time adjustment processing executing means for specifying the target image to be actually processed from the processing target area by the number of the processed images, performing processing on the target image according to the processing content, and generating an adjusted video file An image editing device, comprising: 2. The processing request input means specifies either insertion or deletion as the processing content, and the time adjustment processing executing means newly copies the target image when the processing content is insertion. 2. The image processing apparatus according to claim 1, wherein the target image is deleted when the specified content is deleted. 3. The change amount calculation means converts each image of the video file into a bitmap format, compares numerical values indicating the shades of corresponding pixels between successive images, and calculates the shades of all the pixels. 2. The image editing apparatus according to claim 1, wherein a total of the differences is used as the change amount. 4. The change amount calculating means compares a preset file division value with a calculated change amount, and divides the plurality of video files at a portion where the value of the change amount exceeds the file division value. 2. The image processing apparatus according to claim 1, wherein the processing request input unit specifies the number of processed images for each scene, and the time adjustment processing executing unit specifies a target image for each scene. Image editing device. 5. The change amount calculating means compares a preset selected area determination value with a calculated change amount, and determines a portion where the value of the change amount exceeds the selected area determination value as a recommended selection area. 2. The image editing apparatus according to claim 1, wherein the display unit displays the selected recommended area on a display device.