CN112115422A - Method, device and equipment for detecting copyright file modification - Google Patents
Method, device and equipment for detecting copyright file modification Download PDFInfo
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- CN112115422A CN112115422A CN202010797535.1A CN202010797535A CN112115422A CN 112115422 A CN112115422 A CN 112115422A CN 202010797535 A CN202010797535 A CN 202010797535A CN 112115422 A CN112115422 A CN 112115422A
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- 238000012986 modification Methods 0.000 title claims abstract description 46
- 230000004048 modification Effects 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000012545 processing Methods 0.000 claims description 15
- 239000003086 colorant Substances 0.000 claims description 6
- 238000001514 detection method Methods 0.000 description 15
- 238000011161 development Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F40/00—Handling natural language data
- G06F40/10—Text processing
- G06F40/103—Formatting, i.e. changing of presentation of documents
Abstract
The embodiment of the invention discloses a method, a device and equipment for detecting copyright file modification, wherein the method comprises the following steps: detecting whether a modification identifier exists in a target copyright file; if the target copyright file does not have the modification identification, acquiring the font type, the font size, the font color and the character arrangement mode information of the target copyright file; judging whether the font information of the target copyright file is modified or not according to the font type, font size, font color and character arrangement mode information of the target copyright file; and if the font information of the target copyright file is determined to be modified, outputting first prompt information. The invention has high efficiency of detecting the authenticity of the copyright file and low auditing cost.
Description
Technical Field
The embodiment of the invention relates to the field of copyright file auditing, in particular to a method, a device and equipment for detecting copyright file modification.
Background
With the development of science and technology, the production of film and television works and the type of the configuration of the playing terminal are changing day by day. The modern intellectual property protection system is originated from the western world three hundred years ago, and plays an important role in promoting the accumulation and exchange of knowledge, enriching the spiritual life of people, improving the scientific culture quality of the whole nation and promoting the development of economy and personal social progress. Among them, copyright (original copyright) is an important component of intellectual property. The protection of intellectual property rights is not only to protect the personal interests of copyright holders, but also to maintain public interests and promote social development.
The authenticity and accuracy of the copyright information become important factors, and the correctness of the copyright information is mainly checked according to the related files of the copyright information. The pictures of the files related to the copyright information are real, and the whole copyright checking work has significance. On the contrary, if the file is processed, the copyright information is not true. The authenticity of the existing copyright information is finished manually, the detection efficiency is low, and the auditing cost is high.
Disclosure of Invention
The embodiment of the invention aims to provide a method, a device and equipment for detecting copyright file modification, which are used for solving the problems of low authenticity detection efficiency and high auditing cost of the conventional copyright information.
In order to achieve the above object, the embodiments of the present invention mainly provide the following technical solutions:
in a first aspect, an embodiment of the present invention provides a method for detecting a modification of a copyright file, including: detecting whether a modification identifier exists in a target copyright file; if the target copyright file does not have the modification identification, acquiring the font type, the font size, the font color and the character arrangement mode information of the target copyright file; judging whether the font information of the target copyright file is modified or not according to the font type, font size, font color and character arrangement mode information of the target copyright file; and if the font information of the target copyright file is determined to be modified, outputting first prompt information.
According to an embodiment of the present invention, further comprising: if the font information of the target copyright file is not modified, acquiring color smoothness information of the target copyright file; judging whether the target copyright file is modified or not according to the color smoothness information of the target copyright file; and if the font information of the target copyright file is determined to be modified, outputting second prompt information.
According to an embodiment of the present invention, the obtaining of the information of the font type, the font size, the font color and the text arrangement mode of the target copyright file includes: obtaining the character position, the character content and the font color of the target copyright file according to the pixel information of the target copyright file; and obtaining the font type, font size and character arrangement mode information of the target copyright file according to the character position and the character content of the target copyright file.
According to an embodiment of the present invention, determining whether the font information of the target copyright file is modified according to the font type, font size, font color and character arrangement information of the target copyright file includes: dividing the target copyright file into a plurality of file units; acquiring font types, font sizes, font colors and character arrangement modes of the plurality of file units; and if the difference between the font type, the font size, the font color and the character arrangement mode of at least one file unit and the font type, the font size, the font color and the character arrangement mode of other file units exceeds a preset range, determining that the font information of the target copyright file is modified.
In a second aspect, an embodiment of the present invention further provides an apparatus for detecting a modification of a copyright file, including: the acquisition module is used for acquiring a target copyright file; an output module; the control processing module is used for detecting whether a modification identifier exists in a target copyright file, acquiring the font type, font size, font color and character arrangement mode information of the target copyright file if the modification identifier does not exist in the target copyright file, judging whether the font information of the target copyright file is modified according to the font type, font size, font color and character arrangement mode information of the target copyright file, and outputting first prompt information through the output module if the font information of the target copyright file is judged to be modified.
According to an embodiment of the present invention, the control processing module is further configured to, if it is determined that the font information of the target copyright file is not modified, obtain color smoothness information of the target copyright file, and determine whether the target copyright file is modified according to the color smoothness information of the target copyright file; and if the font information of the target copyright file is judged to be modified, outputting second prompt information through the output module.
According to an embodiment of the present invention, the control processing module is configured to obtain a text position, a text content, and a font color of the target copyright file according to the pixel information of the target copyright file, and further obtain a font type, a font size, and text arrangement information of the target copyright file according to the text position and the text content of the target copyright file.
According to an embodiment of the present invention, the control processing module is configured to divide the target copyright file into a plurality of file units; acquiring font types, font sizes, font colors and character arrangement modes of the plurality of file units; and if the difference between the font type, the font size, the font color and the character arrangement mode of at least one file unit and the font type, the font size, the font color and the character arrangement mode of other file units exceeds a preset range, determining that the font information of the target copyright file is modified.
In a third aspect, an embodiment of the present invention further provides an electronic device, including: at least one processor and at least one memory; the memory is to store one or more program instructions; the processor is configured to execute one or more program instructions to perform the method for detecting a modification of a copyright file according to the first aspect.
In a fourth aspect, embodiments of the present invention also provide a computer-readable storage medium containing one or more program instructions for executing the method for detecting a modification of a copyright file according to the first aspect.
The technical scheme provided by the embodiment of the invention at least has the following advantages:
according to the method, the device and the equipment for detecting the copyright file modification, provided by the embodiment of the invention, the work of PS detection is undertaken by replacing manpower with a computer, the work efficiency is improved, and the follow-up copyright checking work can be ensured to be normally carried out. In addition, the method can also be used in other fields, and brings convenience to more fields needing PS detection.
Drawings
Fig. 1 is a flowchart of a method for detecting a modification of a copyright file according to an embodiment of the present invention.
Fig. 2 is a block diagram illustrating an apparatus for detecting a modification of a copyright file according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
In the following description, for purposes of explanation and not limitation, specific details are set forth such as particular system structures, interfaces, techniques, etc. in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
In the description of the present invention, it is to be understood that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Fig. 1 is a flowchart of a method for detecting a modification of a copyright file according to an embodiment of the present invention. As shown in fig. 1, a method for detecting a modification of a copyright file according to an embodiment of the present invention includes:
s1: and detecting whether the target copyright file has a modification identifier.
Specifically, the trace of PS processing can be detected by analyzing the detected copyright file in the picture format or the detected copyright file in the pdf format. The PS processed file is often added with an identifier of the PS process, and the content of the file is analyzed to detect whether the PS processed file exists. If the target copyright file is detected to have the PS mark, the file is directly judged to be suspected to be PS, and if the PS mark is not detected, the next step is carried out.
S2: and if the target copyright file does not have the modification identifier, acquiring the font type, the font size, the font color and the character arrangement mode information of the target copyright file.
In one embodiment of the present invention, step S2 includes: obtaining the character position, the character content and the font color of the target copyright file according to the pixel information of the target copyright file; and obtaining the font type, font size and character arrangement mode information of the target copyright file according to the character position and the character content of the target copyright file.
Specifically, by using the capability of character recognition in the picture, it is firstly determined that all the characters in the target copyright original are black, but because the file needs to be printed, stamped and then scanned or photographed to obtain an electronic version, the range of file detection can be reduced to a black color system, so that the detection time is greatly reduced, and the detection efficiency is increased.
And judging the character position according to the difference between the pixels, and detecting the character content and the character arrangement mode according to the pixel arrangement mode.
S3: and judging whether the font information of the target copyright file is modified or not according to the font type, the font size, the font color and the character arrangement mode information of the target copyright file.
In one embodiment of the present invention, step S3 includes: dividing a target copyright file into a plurality of file units; acquiring font types, font sizes, font colors and character arrangement modes of a plurality of file units; and if the difference between the font type, the font size, the font color and the character arrangement mode of at least one file unit and the font type, the font size, the font color and the character arrangement mode of other file units exceeds a preset range, determining that the font information of the target copyright file is modified.
Specifically, the font, font size and character arrangement mode of the target copyright file are compared with the arrangement modes of various pre-calculated fonts and font sizes to obtain similar values, the information of the three items is replaced by the preset values and recorded as the detection result value
Since the copyright-related files usually have a fixed format, the format is substantially the same even if the contents are different. In this embodiment, the picture of the target copyright file is divided into a plurality of file units, and after all values of each part are detected, the results are compared. If the difference between the value of one part and the value of the other part exceeds the preset difference range, the font information of the target copyright file is judged to be modified.
S4: if it is determined that the font information of the target copyright file is modified, first hint information is output, for example, "file suspected to be PS" is output.
In an embodiment of the present invention, after step S3, the method further includes:
s5: if the font information of the target copyright file is not modified, acquiring color smoothness information of the target copyright file; judging whether the target copyright file is modified or not according to the color smoothness information of the target copyright file; outputting second hint information if it is determined that font information of the target copyright file is modified
In particular, after a document is converted into a picture or PDF, "blurring" occurs at the edges of the content in the picture or PDF. In the case of non-vector graphics, this "blurring" is the case. After detecting the smoothness of the entire content screen and the smoothness of the periphery of the font, the result is replaced with a preset value and recorded as a detection result value. Similar to the way of the font detection link, the smoothness detection is to detect whether the large-area smoothness abnormality occurs to the pixels around the text, for example, if the color of the pixel point in a certain area is different from that of the surrounding pixel points, but the pixel point in the area is not black or the color of the black color system, the suspected PS can be determined. If the overall smoothness of the picture is abnormal and the smoothness of the font edge is different, the file is judged to be suspected to be PS, the part with the abnormal detection result value is recorded, and the detection is finished.
According to the method for detecting copyright file modification, provided by the embodiment of the invention, computer replaces manpower, PS detection work is undertaken, the work efficiency is improved, and the follow-up copyright checking work can be normally carried out. In addition, the method can also be used in other fields, and brings convenience to more fields needing PS detection.
Fig. 2 is a block diagram illustrating an apparatus for detecting a modification of a copyright file according to an embodiment of the present invention. As shown in fig. 2, the apparatus for detecting a modification of a copyright file according to an embodiment of the present invention includes: an acquisition module 100, an output module 200 and a control processing module 300.
The obtaining module 100 is configured to obtain a target copyright file. The control processing module 300 is configured to detect whether the target copyright file has a modification flag, acquire font type, font size, font color, and text arrangement information of the target copyright file if the target copyright file does not have the modification flag, determine whether the font information of the target copyright file is modified according to the font type, the font size, the font color, and the text arrangement information of the target copyright file, and output first prompt information through the output module 200 if it is determined that the font information of the target copyright file is modified.
In an embodiment of the present invention, the control processing module 300 is further configured to, if it is determined that the font information of the target copyright file is not modified, obtain color smoothness information of the target copyright file, and determine whether the target copyright file is modified according to the color smoothness information of the target copyright file; if it is determined that the font information of the target copyright file is modified, the second hint information is output through the output module 200.
In an embodiment of the present invention, the control processing module 300 is configured to obtain a text position, a text content, and a font color of the target copyright file according to the pixel information of the target copyright file, and further obtain a font type, a font size, and text arrangement information of the target copyright file according to the text position and the text content of the target copyright file.
In one embodiment of the present invention, the control processing module 300 is configured to divide the target copyright file into a plurality of file units; acquiring font types, font sizes, font colors and character arrangement modes of a plurality of file units; and if the difference between the font type, the font size, the font color and the character arrangement mode of at least one file unit and the font type, the font size, the font color and the character arrangement mode of other file units exceeds a preset range, determining that the font information of the target copyright file is modified.
It should be noted that, a specific implementation of the apparatus for detecting a modification of a copyright file according to an embodiment of the present invention is similar to a specific implementation of the method for detecting a modification of a copyright file according to an embodiment of the present invention, and specific reference is specifically made to the description of the method for detecting a modification of a copyright file, and no further description is given for reducing redundancy.
In addition, other configurations and functions of the apparatus for detecting modification of a copyright file according to the embodiment of the present invention are known to those skilled in the art, and are not described in detail for reducing redundancy.
An embodiment of the present invention further provides an electronic device, including: at least one processor and at least one memory; the memory is to store one or more program instructions; the processor is configured to execute one or more program instructions to perform the method for detecting a modification of a copyright file according to the first aspect.
The disclosed embodiments of the present invention provide a computer-readable storage medium having stored therein computer program instructions, which, when run on a computer, cause the computer to perform the above-described method of detecting a modification of a copyright file.
In an embodiment of the invention, the processor may be an integrated circuit chip having signal processing capability. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component.
The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The processor reads the information in the storage medium and completes the steps of the method in combination with the hardware.
The storage medium may be a memory, for example, which may be volatile memory or nonvolatile memory, or which may include both volatile and nonvolatile memory.
The nonvolatile memory may be a Read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash memory.
The volatile Memory may be a Random Access Memory (RAM) which serves as an external cache. By way of example and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (ddr Data Rate SDRAM), Enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM).
The storage media described in connection with the embodiments of the invention are intended to comprise, without being limited to, these and any other suitable types of memory.
Those skilled in the art will appreciate that the functionality described in the present invention may be implemented in a combination of hardware and software in one or more of the examples described above. When software is applied, the corresponding functionality may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made on the basis of the technical solutions of the present invention should be included in the scope of the present invention.
Claims (10)
1. A method of detecting a modification to a copyright file, comprising:
detecting whether a modification identifier exists in a target copyright file;
if the target copyright file does not have the modification identification, acquiring the font type, the font size, the font color and the character arrangement mode information of the target copyright file;
judging whether the font information of the target copyright file is modified or not according to the font type, font size, font color and character arrangement mode information of the target copyright file;
and if the font information of the target copyright file is determined to be modified, outputting first prompt information.
2. The method of detecting copyright file modifications according to claim 1, further comprising:
if the font information of the target copyright file is not modified, acquiring color smoothness information of the target copyright file;
judging whether the target copyright file is modified or not according to the color smoothness information of the target copyright file;
and if the font information of the target copyright file is determined to be modified, outputting second prompt information.
3. The method for detecting modification of a copyright file according to claim 1, wherein obtaining information of font type, font size, font color and text arrangement of the target copyright file comprises:
obtaining the character position, the character content and the font color of the target copyright file according to the pixel information of the target copyright file;
and obtaining the font type, font size and character arrangement mode information of the target copyright file according to the character position and the character content of the target copyright file.
4. The method of claim 1, wherein determining whether the font information of the target copyright file is modified according to the font type, font size, font color, and text arrangement information of the target copyright file comprises:
dividing the target copyright file into a plurality of file units;
acquiring font types, font sizes, font colors and character arrangement modes of the plurality of file units;
and if the difference between the font type, the font size, the font color and the character arrangement mode of at least one file unit and the font type, the font size, the font color and the character arrangement mode of other file units exceeds a preset range, determining that the font information of the target copyright file is modified.
5. An apparatus for detecting modification of a copyright file, comprising:
the acquisition module is used for acquiring a target copyright file;
an output module;
the control processing module is used for detecting whether a modification identifier exists in a target copyright file, acquiring the font type, font size, font color and character arrangement mode information of the target copyright file if the modification identifier does not exist in the target copyright file, judging whether the font information of the target copyright file is modified according to the font type, font size, font color and character arrangement mode information of the target copyright file, and outputting first prompt information through the output module if the font information of the target copyright file is judged to be modified.
6. The apparatus for detecting modification of a copyright file according to claim 5, wherein the control processing module is further configured to, if it is determined that the font information of the target copyright file is not modified, obtain color smoothness information of the target copyright file, and determine whether the target copyright file is modified according to the color smoothness information of the target copyright file; and if the font information of the target copyright file is judged to be modified, outputting second prompt information through the output module.
7. The apparatus according to claim 5, wherein the control processing module is configured to obtain a text position, a text content, and a font color of the target copyright file according to the pixel information of the target copyright file, and further obtain a font type, a font size, and text arrangement information of the target copyright file according to the text position and the text content of the target copyright file.
8. The apparatus for detecting copyright file modification as claimed in claim 5, wherein the control processing module is configured to divide the target copyright file into a plurality of file units; acquiring font types, font sizes, font colors and character arrangement modes of the plurality of file units; and if the difference between the font type, the font size, the font color and the character arrangement mode of at least one file unit and the font type, the font size, the font color and the character arrangement mode of other file units exceeds a preset range, determining that the font information of the target copyright file is modified.
9. An electronic device, characterized in that the electronic device comprises: at least one processor and at least one memory;
the memory is to store one or more program instructions;
the processor, configured to execute one or more program instructions to perform the method of detecting a modification of a copyright file according to any one of claims 1-4.
10. A computer-readable storage medium having one or more program instructions embodied therein for performing the method of detecting a modification of a copyright file of any of claims 1-4.
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| CN202010797535.1A CN112115422A (en) | 2020-08-10 | 2020-08-10 | Method, device and equipment for detecting copyright file modification |
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| CN202010797535.1A CN112115422A (en) | 2020-08-10 | 2020-08-10 | Method, device and equipment for detecting copyright file modification |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113221797A (en) * | 2021-05-24 | 2021-08-06 | 厦门科路德科技有限公司 | Anti-counterfeiting identification method, device and equipment for printed file |
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| CN106096335A (en) * | 2016-06-08 | 2016-11-09 | 北京小米移动软件有限公司 | Copyright information detection method, copyright information detection device and electronic equipment |
| CN111325113A (en) * | 2020-02-03 | 2020-06-23 | 支付宝(杭州)信息技术有限公司 | Image detection method, apparatus, device and medium |
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2020
- 2020-08-10 CN CN202010797535.1A patent/CN112115422A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US6738906B1 (en) * | 1996-09-30 | 2004-05-18 | Nokia Corporation | Marking of electronic documents in order to expose unauthorized publication |
| CN106096335A (en) * | 2016-06-08 | 2016-11-09 | 北京小米移动软件有限公司 | Copyright information detection method, copyright information detection device and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113221797A (en) * | 2021-05-24 | 2021-08-06 | 厦门科路德科技有限公司 | Anti-counterfeiting identification method, device and equipment for printed file |
| CN113221797B (en) * | 2021-05-24 | 2024-01-19 | 厦门科路德科技有限公司 | Anti-counterfeiting identification method, device and equipment for printed document |
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