JP6859606B2 - Image comparison program, image comparison device and image comparison method - Google Patents

Description

The present invention relates to an image comparison program, an image comparison device, and an image comparison method.

The software manual (instruction manual) contains many images captured from the screen while the software is running. In addition, the software is often revised, and even in the manual, the screen image that has been changed is replaced each time.

FIG. 1 is a flowchart showing a conventional work example of image capture for a manual. FIG. 1A shows the case where the software is the first edition, and the person in charge starts the target software (first edition) (step S1) and performs a predetermined operation according to the contents of the manual while visually checking (step S1). S2). Then, when the desired screen is displayed, the person in charge captures the screen and imports it into the manual (step S3), and repeats these operations.

FIG. 1B shows a case where the software has been revised. The person in charge starts the target software (revised version) (step S4) and visually observes the changes from the previous version from the specifications or the actual screen. While confirming with, perform a predetermined operation according to the contents of the manual (step S5). Then, when the screen that needs to be replaced is displayed, the person in charge captures the screen and imports (replaces) it into the manual (step S6), and repeats these operations.

The above-mentioned manual work requires man-hours for the person in charge, and the manual quality is deteriorated due to an error in replacing the image. Therefore, semi-automation using a script by the operation recording function is also performed.

FIG. 2 is a flowchart showing a conventional semi-automated work example using a script. FIG. 2A shows a case where the software is the first version, and the person in charge starts the target software (first version) (step S11) and also starts the operation recording unit (step S12). When the person in charge performs a predetermined operation according to the contents of the manual (step S13), the operation recording unit records the operation contents (screen transition, screen capture, saving, etc.) as a script (step S14). Then, when the desired screen is displayed, the person in charge captures the screen, incorporates it into the manual (step S15), and repeats these operations.

FIG. 2B shows a case where the software is revised, and the person in charge starts the target software (revised) (step S16) and executes the script recorded at the time of the first edition (step S17). After that, the person in charge confirms the image of the screen captured by the script (step S18), and imports the image into the manual (step S19).

On the other hand, some techniques for supporting the creation of manuals and the like are disclosed (Patent Documents 1 to 4 and the like).

Japanese Unexamined Patent Publication No. 2012-118812 Japanese Unexamined Patent Publication No. 2007-11532 Japanese Unexamined Patent Publication No. 2006-227730 Japanese Unexamined Patent Publication No. 2008-242852

The technique of acquiring an image by the above-mentioned script is useful for improving work efficiency, but there are cases where the expected image cannot be acquired, and the burden of visual confirmation by the person in charge is still heavy.

FIG. 3 is a diagram showing an example of the difference in the captured image depending on the setting of the OS (Operating System). FIG. 3A shows an example of a window with a Windows classic theme setting, and FIG. 3B shows an example of a window with a Windows basic theme setting. In this way, even the screen of the same scene of the software becomes a different image, and cannot be adopted as it is. However, it is possible to deal with it by confirming the difference in settings in advance by artificial processing or automatic processing by the check phase.

FIG. 4 is a diagram showing an example of screen transition for each version, and is an example when the route of screen transition in the first edition (V1.0) is omitted in the revised edition (V2.0). In FIG. 4, in the first edition (V1.0), it is assumed that the desired screen a is reached and the screen is captured via (1) → (2) → (3). Further, in the revised version (V2.0), it is assumed that the screen has been modified so as to reach the desired screen a via (1) → (2). In this case, when the script that records the screen transition and capture operation in the first edition (V1.0) is executed in the revised edition (V2.0), the next screen exists in an attempt to make a further screen transition from the desired screen a. Failure to do so will result in an error and the capture will fail. However, in this case, if an error occurs, the person in charge can recognize that the problem has occurred and deal with it.

FIG. 5 is a diagram showing another example of screen transition for each version, and is an example when the route of screen transition in the first edition (V1.0) is added in the revised edition (V2.0). In FIG. 5, in the first edition (V1.0), it is assumed that the desired screen a is reached and the screen is captured via (1) → (2) → (3). Further, in the revised version (V2.0), it is assumed that the screen has been modified so as to reach the desired screen a via (1) → (2) → (3) → b. In this case, the screen b is captured before reaching the screen a without causing an error, and the desired screen a cannot be acquired. In this case, since no error occurs, the person in charge cannot recognize that the problem has occurred, and as a result, the person in charge has to confirm all the captured images by comparing them with the previous images.

In this way, in the work of performing the conventional script, the man-hours for image comparison of the person in charge are large, and simplification thereof has been required.

Therefore, on one aspect, the purpose is to reduce the workload of image comparison.

In one form, the comparison result between the feature amount of the image of the first screen displayed according to the execution of the first process and the feature amount of the image of the second screen stored in association with the first process. When the value of exceeds the first threshold set for the second screen, the warning information for the second screen is output, and the window of the third screen displayed according to the execution of the second process. When the type and the window type of the fourth screen stored in association with the second process are different, the warning information for the fourth screen is output, and the window type of the third screen and the fourth screen are displayed. If the window types are matched, the feature amount of the third screen of an image, the value of the comparison result of the feature amount of the fourth screen image, the fourth second, which is set to the screen When the threshold value is exceeded, the computer is made to execute a process of outputting warning information for the fourth screen.

The work load of image comparison can be reduced.

It is a flowchart which shows the work example of image acquisition for a conventional manual. It is a flowchart which shows the work example semi-automated by the conventional script. It is a figure which shows the example of the difference of the captured image by the setting of OS. It is a figure (the 1) which shows the example of the screen transition for each version. It is a figure (the 2) which shows the example of the screen transition for each version. It is a figure which shows the configuration example of the system which concerns on one Embodiment. It is a figure which shows the functional configuration example of a server device. It is a figure which shows the functional configuration example of a client terminal. It is a figure which shows the hardware configuration example of a server apparatus and a client terminal. It is a sequence diagram which shows the processing example of embodiment. It is a figure which shows the example of the script. It is a figure which shows the example of the environment comparison. It is a figure which shows the example of the detailed environment comparison. It is a figure which shows the example of the script result reference. It is a figure which shows the example of image size comparison. It is a figure which shows the example of the image detailed comparison.

Hereinafter, preferred embodiments of the present invention will be described.

<Structure>
FIG. 6 is a diagram showing a configuration example of the system according to the embodiment. In FIG. 6, the server device 1 that supports the acquisition of screen images for software manuals is connected to a network 2 such as an in-house network or the Internet. Further, a plurality of client terminals 3 (3X, 3Y, ...) That execute the software and perform an operation of acquiring a screen image for the software manual can be connected to the server device 1 via the network 2. ..

FIG. 7 is a diagram showing a functional configuration example of the server device 1. In FIG. 7, the server device 1 includes a captured image receiving unit 101, an image comparing unit 102, an environment information receiving unit 103, an environment comparing unit 104, a script receiving unit 105, a script transmitting unit 106, and a script result reference unit 107. There is.

The captured image receiving unit 101 has a function of receiving the captured image of the screen from the client terminal 3 and storing the image file 112 in the captured image storage unit 111. The image file 112 is associated with the identifier of the corresponding software, the version (version number), the identifier of the client terminal 3 that captured the image, and the like. The image comparison unit 102 compares the image file 112 of the previous version stored in the captured image storage unit 111 with the image file 112 of the current version based on the setting information 114 stored in the setting information storage unit 113. , Has a function to judge the identity. A specific example of the setting information 114 will be described later, but includes a threshold value and the like that are allowed to be within the range of identity in the image comparison.

The environment information receiving unit 103 has a function of receiving the environment information from the client terminal 3 and storing the environment information in the environment information storage unit 115 as the environment information 116. The environment information 116 includes information such as the corresponding software identifier, version (version number), client terminal 3 identifier, OS version, and screen type for each software window. The environment comparison unit 104 has a function of comparing the environment information 116 of the previous version stored in the environment information storage unit 115 with the environment information 116 of the current version.

The script receiving unit 105 has a function of receiving the script recorded in the client terminal 3 and saving it as a script file 118 in the script storage unit 117. The script file 118 is associated with the corresponding software, version (version number), identifier of the client terminal 3 that recorded the script, and the like. Further, the script receiving unit 105 also has a function of receiving the script result which is the execution result of the script and saving it as the script result 119 in the script storage unit 117. The script transmission unit 106 has a function of providing an earlier version of the script file 118 in response to a request from the client terminal 3. The script result reference unit 107 has a function of referring to the script result 119 and recording warning information about the captured image of the screen in which the error has occurred.

FIG. 8 is a diagram showing a functional configuration example of the client terminal 3 (3X, 3Y, ...). In FIG. 8, the client terminal 3 includes a target software execution unit 301, an operation recording unit 302, a script transmission unit 303, an environment information acquisition / transmission unit 304, and a captured image transmission unit 305. Further, the client terminal 3 includes a script request unit 306, a script reception unit 307, a script execution unit 308, a script result transmission unit 309, and a comparison result reception unit 310. In the client terminal 3, the parts used when recording the script in the first version of the software are the target software execution unit 301, the operation recording unit 302, the script transmission unit 303, the environment information acquisition / transmission unit 304, and the captured image. The transmission unit 305. Further, the parts used when executing the script in the software revision are the target software execution unit 301, the environment information acquisition / transmission unit 304, the captured image transmission unit 305, the script request unit 306 to the comparison result reception unit 310. ..

The target software execution unit 301 has a function of executing software that is the target of manual creation. The operation recording unit 302 has a function of recording the operation performed by the person in charge (manual creator) for the software executed by the target software execution unit 301 as a script. The recorded script is temporarily saved internally. The script transmission unit 303 has a function of transmitting the recorded script to the server device 1.

The environment information acquisition / transmission unit 304 has a function of acquiring the environment information of the own terminal (the acquired environment information is temporarily stored internally) and transmitting it to the server device 1. The captured image transmission unit 305 has a function of transmitting an image of the screen captured by the own terminal to the server device 1.

The script requesting unit 306 has a function of requesting the server device 1 to use a script of a previous version used in creating a manual for the revised software. The script receiving unit 307 has a function of receiving a script from the server device 1. The received script is temporarily saved internally. The script execution unit 308 has a function of executing the script received by the script reception unit 307 according to the instruction of the person in charge. The execution result of the script is temporarily saved internally. The script result transmission unit 309 has a function of transmitting the script execution result to the server device 1. The comparison result receiving unit 310 has a function of receiving the comparison result of the screen image captured from the server device 1 with the image of the previous version and outputting it to the person in charge as needed.

FIG. 9 is a diagram showing a hardware configuration example of the server device 1 and the client terminal 3. In FIG. 9, the server device 1 and the like include a CPU (Central Processing Unit) 11, a ROM (Read Only Memory) 12, and a RAM (Random Access Memory) 13 connected to each other via a bus 17. Further, the server device 1 and the like include an HDD (Hard Disk Drive) / SSD (Solid State Drive) 14, a connection I / F (Interface) 15, and a communication I / F 16. The CPU 11 comprehensively controls the operation of the server device 1 and the like by executing a program stored in the ROM 12 or the HDD / SSD 14 or the like using the RAM 13 as a work area. The connection I / F 15 is an interface with a device connected to the server device 1 or the like. The communication I / F 16 is an interface for communicating with another information processing device via a network.

The functions of the devices described with reference to FIGS. 7 and 8 are realized by executing a predetermined program in the CPU 11. The program may be acquired via a recording medium, may be acquired via a network, or may be embedded in a ROM. The data referenced / updated during processing is held in the RAM 13 or the HDD / SSD 14.

<Operation>
FIG. 10 is a sequence diagram showing a processing example of the above embodiment, in which the first version of the software is executed on the client terminal 3X to record a script, and the script is executed on the client terminal 3Y when the software is revised.

In FIG. 10, when the client terminal 3X receives an instruction (operation) from the person in charge to start the target software and start operation recording (step S101), the target software execution unit 301 starts the software, and the operation recording unit 302 records the operation. Start (step S102). After that, a predetermined operation (step S103) such as screen transition and capture of the person in charge is recorded and made into a script, and the operation recording is completed by the instruction of the person in charge to end the operation recording (step S104). FIG. 11 shows an example of the recorded script, and operations such as menu operation, menu list item selection, field input, button push, and screen capture are recorded.

Returning to FIG. 10, when the operation recording is completed, the environment information acquisition / transmission unit 304 acquires the environment information of the client terminal 3X (step S105). Then, the captured image transmitting unit 305, the environment information acquisition / transmitting unit 304, and the script transmitting unit 303 transmit the captured image, the environment information, and the script file to the server device 1 (step S106). The captured image receiving unit 101, the environment information receiving unit 103, and the script receiving unit 105 of the server device 1 receive and save the captured image, the environment information, and the script file, respectively (step S107).

After that, when the target software is revised, when the client terminal 3Y receives an instruction to start the target software from the person in charge (step S111), the target software execution unit 301 starts the software. The instruction to start the target software corresponds to the instruction to change the display screen. Next, the environment information acquisition / transmission unit 304 acquires the environment information of the client terminal 3Y (step S112) and transmits the environment information to the server device 1 (step S113). When the environment information receiving unit 103 of the server device 1 receives the environment information, it stores it in the environment information storage unit 115, and the environment comparison unit 104 stores the environment information corresponding to the previous version in which the script of the software is stored, and this time. Compare with the environmental information about the revision (step S114). FIG. 12 shows an example of environment comparison, in which client: # 1 corresponds to client terminal 3X and client: # 2 corresponds to client terminal 3Y. In this example, since the OS versions are the same, it is judged that there is no problem. Then, the environment comparison unit 104 transmits the environment comparison result to the client terminal 3Y (step S115).

Returning to FIG. 10, if the environment comparison result indicates that the OS version is different and it is meaningless to execute the previous script, the client terminal 3Y cancels the processing by the script. Further, when the environment comparison result has no problem or affects a part, the script request unit 306 requests the server device 1 for the corresponding script file (step S116). In response to this, the script transmission unit 106 of the server device 1 acquires the corresponding script file 118 from the script storage unit 117 and transmits it to the client terminal 3Y (step S117).

When the script receiving unit 307 of the client terminal 3Y receives the script file, the script executing unit 308 executes the script and automatically executes screen transition, screen capture, image saving, and the like (step S118). The script manages the execution completion in units of screen captures, and records as a script result whether the execution is completed normally or an error occurs (step S119). Then, after the execution of the series of scripts is completed, the captured image transmitting unit 305 and the script result transmitting unit 309 transmit the captured image and the script result to the server device 1 (step S120). When the captured image receiving unit 101 and the script receiving unit 105 of the server device 1 receive the captured image and the script result, they store the captured image and the script result in the captured image storage unit 111 and the script storage unit 117, respectively (step S121).

Next, the environment comparison unit 104 performs a detailed environment comparison (step S122). FIG. 13 shows an example of detailed environmental comparison, and while the window type of all screens is set to "○○○" in the environmental information of the previous version, some of the environmental information of this version It shows the case where the window type of the screen is different. In the case of this example, the screen W4 is judged to be NG, and the other screens are judged to be OK. The screen judged to be NG is recorded in the warning information and is excluded from the subsequent processing.

Returning to FIG. 10, the script result reference unit 107 refers to the script result 119 of the script storage unit 117, and records warning information about the screen in which the error has occurred (step S123). FIG. 14 shows an example of script result reference, and for the remaining images excluded in the detailed environment comparison, warning information is recorded for the screen W3 whose result is NG due to an error, and is excluded from the subsequent processing. ..

Returning to FIG. 10, the image comparison unit 102 compares the image sizes of the image files 112 of the previous version and the current version (step S124). The image size can be obtained from the image file 112. FIG. 15 shows an example of image size comparison. For the remaining images excluded by the detailed environment comparison and script result reference, it is determined that the image sizes match, and if they are different, warning information is recorded, and the subsequent processing is performed. Exclude the target. In this example, it is assumed that all the image sizes match.

Returning to FIG. 10, the image comparison unit 102 performs detailed image comparison between the image file 112 of the previous version and the current version (step S125). FIG. 16 shows an example of detailed image comparison. That is, for the individual images of the image files 112 of the previous version and the current version, the comparison result α of the feature comparison by pattern matching (comparing the pixels of the same coordinates and calculating the correlation value) and the color comparison (color of each pixel). The correlation value is calculated from the histogram of)), and the comparison result β is obtained by image processing. At this time, the image is subdivided, the above correlation values are calculated for each, and statistical methods (eg, standard deviation is obtained and normally distributed, upper m% and lower m% are NG, upper n% and lower). A judgment using (m <n)), which requires attention to n%, is also added.

Then, the image comparison unit 102 uses the threshold value of the setting information 114 to determine whether or not each image is substantially the same. In this example, the threshold value of the login screen is 1.0 (exactly the same) because there is no change from the previous version to V2 and V3. As for the screen W1, the threshold value is set to 0.9 so as to absorb the difference between the characters because the year number of the copyright notice is changed from the previous version to V2 and V3. For screen W2, the threshold is set to 0.9 because there is a change in the year of copyright notice for V2, and the threshold is set to 0.5 for V3 because there is a partial change in the UI (User Interface). ing. Here, as the determination of V2, it is determined that the login screen and the screen W1 are substantially the same, and the screen W2 is determined to be different. Warning information is recorded for screens that are determined to be different.

Returning to FIG. 10, the environment comparison unit 104, the script result reference unit 107, and the image comparison unit 102 transmit the comparison result and the warning information (if any) to the client terminal 3Y (step S126). When the comparison result receiving unit 310 of the client terminal 3Y receives the comparison result or the like, the comparison result receiving unit 310 displays or the like to the person in charge. If the warning information exists, the person in charge manually reacquires the image of the corresponding screen (step S127), and transmits the captured image to the server device 1 by the captured image transmitting unit 305 (step S128). When the captured image receiving unit 101 of the server device 1 receives the captured image by manual correspondence, it stores it in the captured image storage unit 111. Then, the image of the image file 112 saved in the captured image storage unit 111 is reflected in the manual (step S129). The reflection in the manual is completed by moving the image file 112 to a predetermined folder or the like. When the electronic data (Word, PDF, etc.) that is the main body of the manual is started, the captured image is displayed on the manual by reading the image file 112 from the specified folder according to the file name described on the data. To do.

<Summary>
As described above, according to the present embodiment, the work load of image comparison can be reduced.

The above description has been made according to a preferred embodiment. Although specific examples have been described here, it is clear that various modifications and changes can be made to these specific examples without departing from the broad purpose and scope defined in the claims. .. That is, it should not be construed as being limited by the details of the specific examples and the accompanying drawings.

With respect to the above description, the following sections will be further disclosed.
(Appendix 1)
When an instruction to transition the display screen is received, the storage unit that stores one or more processes in association with the instruction is referred to, and one or more processes associated with the received instruction are executed.
When the execution completion of the one or more processes is detected, the storage unit that stores the screen information in association with the one or more processes is referred to, and the execution completion is associated with the one or the plurality of processes detected. Get the screen information
The screen information displayed according to the execution of the one or more processes for which the execution completion is detected is compared with the acquired screen information.
Output the comparison result,
An image comparison program characterized by having a computer perform processing.
(Appendix 2)
The comparison process compares the feature amount of the screen information displayed according to the execution of the one or more processes with the feature amount of the acquired screen information.
The image comparison program according to Appendix 1, wherein the image comparison program is characterized in that.
(Appendix 3)
In the comparison process, a comparison result is obtained depending on whether or not the difference in the feature amounts exceeds the threshold value stored in the storage unit in advance.
The image comparison program according to Appendix 2, characterized by the above.
(Appendix 4)
The comparison process compares the image size of the screen information displayed according to the execution of the one or more processes with the image size of the acquired screen information.
The image comparison program according to any one of Supplementary note 1 to 3, wherein the image comparison program is characterized by the above.
(Appendix 5)
Prior to the process to be compared, environmental information in which one or more processes associated with the instruction are recorded, and environmental information in which one or more processes associated with the received instruction are executed. To compare,
The image comparison program according to any one of Supplementary note 1 to 4, wherein the image comparison program is characterized by the above.
(Appendix 6)
When an instruction to transition the display screen is received, a storage unit that stores one or more processes in association with the instruction is referred to, and an execution unit that executes one or more processes associated with the received instruction. ,
When the execution completion of the one or more processes is detected, the storage unit that stores the screen information in association with the one or more processes is referred to, and the execution completion is associated with the one or the plurality of processes detected. The acquisition unit that acquires the displayed screen information,
A comparison unit that compares the screen information displayed according to the execution of the one or more processes for which the execution completion is detected with the acquired screen information.
The output section that outputs the comparison result and
An image comparison device characterized by being equipped with.
(Appendix 7)
The comparison unit compares the feature amount of the screen information displayed according to the execution of the one or more processes with the feature amount of the acquired screen information.
The image comparison device according to Appendix 6, wherein the image comparison device is characterized by the above.
(Appendix 8)
The comparison unit obtains a comparison result depending on whether or not the difference in the feature amount exceeds the threshold value stored in the storage unit in advance.
The image comparison device according to Appendix 7, wherein the image comparison device is characterized by the above.
(Appendix 9)
The comparison unit compares the image size of the screen information displayed according to the execution of the one or more processes with the image size of the acquired screen information.
The image comparison apparatus according to any one of Supplementary Provisions 6 to 8, wherein the image comparison device is characterized by the above.
(Appendix 10)
Environmental information in which one or more processes associated with the instruction are recorded before the process of the comparison unit, and environmental information in which one or more processes associated with the received instruction are executed. Compare with,
The image comparison apparatus according to any one of Supplementary Provisions 6 to 9, wherein the image comparison device is characterized by the above.
(Appendix 11)
When an instruction to transition the display screen is received, the storage unit that stores one or more processes in association with the instruction is referred to, and one or more processes associated with the received instruction are executed.
When the execution completion of the one or more processes is detected, the storage unit that stores the screen information in association with the one or more processes is referred to, and the execution completion is associated with the one or the plurality of processes detected. Get the screen information
The screen information displayed according to the execution of the one or more processes for which the execution completion is detected is compared with the acquired screen information.
Output the comparison result,
An image comparison method characterized in that processing is performed by a computer.
(Appendix 12)
The comparison process compares the feature amount of the screen information displayed according to the execution of the one or more processes with the feature amount of the acquired screen information.
The image comparison method according to Appendix 11, characterized by the above.
(Appendix 13)
In the comparison process, a comparison result is obtained depending on whether or not the difference in the feature amounts exceeds the threshold value stored in the storage unit in advance.
The image comparison method according to Appendix 12, characterized in that.
(Appendix 14)
The comparison process compares the image size of the screen information displayed according to the execution of the one or more processes with the image size of the acquired screen information.
The image comparison method according to any one of Appendix 11 to 13, wherein the image comparison method is characterized by the above.
(Appendix 15)
Prior to the process to be compared, environmental information in which one or more processes associated with the instruction are recorded, and environmental information in which one or more processes associated with the received instruction are executed. To compare,
The image comparison method according to any one of Supplementary Provisions 11 to 14, characterized in that.

1 Server device 101 Captured image receiving unit 102 Image comparing unit 103 Environmental information receiving unit 104 Environmental comparing unit 105 Script receiving unit 106 Script transmitting unit 107 Script result reference unit 111 Captured image storage unit 112 Image file 113 Setting information storage unit 114 Setting information 115 Environmental information storage unit 116 Environmental information 117 Script storage unit 118 Script file 119 Script result 2 Network 3, 3X, 3Y Client terminal 301 Target software execution unit 302 Operation recording unit 303 Script transmission unit 304 Environmental information acquisition / transmission unit 305 Captured image Transmission unit 306 Script request unit 307 Script reception unit 308 Script execution unit 309 Script result transmission unit 310 Comparison result reception unit

Claims (5)

The value of the comparison result between the feature amount of the image of the first screen displayed according to the execution of the first process and the feature amount of the image of the second screen stored in association with the first process is the above. When the first threshold value set for the second screen is exceeded, the warning information for the second screen is output, and the warning information is output.
If the window type of the third screen displayed according to the execution of the second process and the window type of the fourth screen stored in association with the second process are different, the warning information for the fourth screen is displayed. Output and
And window type of the third screen, if the window type of the fourth screen matches the feature value of the third screen of an image, the value of the comparison result of the feature amount of the fourth screen image, When the second threshold value set for the fourth screen is exceeded, warning information for the fourth screen is output.
An image comparison program characterized by having a computer perform processing. The feature amount of the image on the first screen is the image size of the first screen.
The image comparison program according to claim 1. The environment information recorded on the second screen is compared with the environment information on which the first process is executed.
The image comparison program according to claim 1 or 2. The value of the comparison result between the feature amount of the image of the first screen displayed according to the execution of the first process and the feature amount of the image of the second screen stored in association with the first process is the above. When the first threshold value set for the second screen is exceeded, the warning information for the second screen is output, and the warning information is output.
If the window type of the third screen displayed according to the execution of the second process and the window type of the fourth screen stored in association with the second process are different, the warning information for the fourth screen is displayed. Output and
And window type of the third screen, if the window type of the fourth screen matches the feature value of the third screen of an image, the value of the comparison result of the feature amount of the fourth screen image, An image comparison device including an output unit that outputs warning information for the fourth screen when the second threshold value set for the fourth screen is exceeded. The value of the comparison result between the feature amount of the image of the first screen displayed according to the execution of the first process and the feature amount of the image of the second screen stored in association with the first process is the above. When the first threshold value set for the second screen is exceeded, the warning information for the second screen is output, and the warning information is output.
If the window type of the third screen displayed according to the execution of the second process and the window type of the fourth screen stored in association with the second process are different, the warning information for the fourth screen is displayed. Output and
And window type of the third screen, if the window type of the fourth screen matches the feature value of the third screen of an image, the value of the comparison result of the feature amount of the fourth screen image, When the second threshold value set for the fourth screen is exceeded, warning information for the fourth screen is output.
An image comparison method characterized in that processing is performed by a computer.

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