CN107358574A - A kind of image downscaling method and device - Google Patents
A kind of image downscaling method and device Download PDFInfo
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- CN107358574A CN107358574A CN201610305162.5A CN201610305162A CN107358574A CN 107358574 A CN107358574 A CN 107358574A CN 201610305162 A CN201610305162 A CN 201610305162A CN 107358574 A CN107358574 A CN 107358574A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformation in the plane of the image
- G06T3/40—Scaling the whole image or part thereof
- G06T3/4084—Transform-based scaling, e.g. FFT domain scaling
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/50—Information retrieval; Database structures therefor; File system structures therefor of still image data
- G06F16/58—Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
- G06F16/583—Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually using metadata automatically derived from the content
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/50—Information retrieval; Database structures therefor; File system structures therefor of still image data
- G06F16/58—Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
- G06F16/5866—Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually using information manually generated, e.g. tags, keywords, comments, manually generated location and time information
Abstract
This application provides a kind of image downscaling method and device.Methods described includes：Obtain the diminution ratio of image；If the diminution ratio is less than setting ratio, according to the diminution scale smaller described image and the image after reducing is shown；If the diminution ratio is more than the setting ratio, described image is shown in the way of the brief information for only showing described image.The image downscaling method and device that the application provides, different implementation strategies can be provided for different diminution ratios, such as image down operation is normally performed under low-shrinkage small scale, under high-shrinkage small scale, part detail information in image is omitted, prominent global content, whole data model is browsed so as to the more preferable overall situation, avoid high-shrinkage small scale hypograph word is smaller from causing user not see Chu, improve Consumer's Experience.
Description
Technical field
The application belongs to technical field of image information processing, more particularly to a kind of image downscaling method and device.
Background technology
In the related art, the reduction operation to image is usually simple according to scale smaller original image is reduced, if necessary to right
Original image carry out high magnification numbe diminution, it is likely that the word on image after diminution is too small, cause user can not it is clear that for
In the presence of being become apparent for the digraph compared with multi information.
Most typically ER schemes (Entity Relationship Diagram, Entity-Relationship figure) in digraph, and ER figures are to provide
Presentation-entity type, attribute and the method for contact, for describing the conceptual model of real world.Multiple tables in ER figures be present,
Table is a very important object in database, is the basis of other objects.According to the classification situation of information, a database
In may include several tables.
For the ER figures that multiple tables be present, large scale diminution after, the word in single table is too small, easily cause user without
Method is it is clear that so as to influence the usage experience of user.
The problem of influenceing Consumer's Experience for traditional images large scale reduction operation, effective solution is not yet proposed at present.
The content of the invention
The application purpose is to provide a kind of image downscaling method and device, can when performing large scale reduction operation to image,
Dependence in overall situation displaying image between each table, it is that details and global switching can be achieved by simple reduction operation,
Significant increase Consumer's Experience.
The application provides what a kind of image downscaling method and device were realized in：
A kind of image downscaling method, methods described include：Obtain the diminution ratio of image；If the diminution ratio is less than setting
Ratio, then according to it is described diminution scale smaller described image and show reduce after image；If the diminution ratio is more than described
Setting ratio, then show described image in the way of the brief information for only showing described image.
A kind of image down device, described device include：Acquiring unit, for obtaining the diminution ratio of image；Normal display is single
Member, in the case of being less than setting ratio in the diminution ratio, according to the diminution scale smaller described image and show contracting
Image after small；Brief display unit, in the case of being more than the setting ratio in the diminution ratio, according to only showing
The mode of the brief information of described image shows described image.
The image downscaling method and device that the application provides, different implementation strategies, example can be provided for different diminution ratios
Image down operation is normally performed such as under low-shrinkage small scale, under high-shrinkage small scale, omits part detail information in image,
Prominent global content, browses whole data model so as to the more preferable overall situation, avoids high-shrinkage small scale hypograph word is smaller from causing
User does not see Chu, improves Consumer's Experience.
Brief description of the drawings
, below will be to embodiment or prior art in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art
The required accompanying drawing used is briefly described in description, it should be apparent that, drawings in the following description are only to remember in the application
Some embodiments carried, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of method flow diagram of the embodiment for the image downscaling method that the application proposes；
Fig. 2 is the image down flow chart that the application proposes；
Fig. 3 is the schematic diagram for the ER images that the application proposes；
Fig. 4 is the schematic diagram of the ER images after the diminution at high proportion that the application proposes；
Fig. 5 is a kind of structural representation of embodiment of herein described image down device.
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the application, below in conjunction with the embodiment of the present application
Accompanying drawing, the technical scheme in the embodiment of the present application is clearly and completely described, it is clear that described embodiment is only
It is some embodiments of the present application, rather than whole embodiments.Based on the embodiment in the application, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, it should all belong to the scope of the application protection.
On " first " used herein, " second " ... etc., not especially censure the meaning of order or cis-position,
Be not used to limit the present invention, its only for distinguish with constructed term description element or operation.
Image downscaling method described herein and device are described in detail below in conjunction with the accompanying drawings.Fig. 1 is the application proposition
Image downscaling method a kind of embodiment method flow diagram.Although this application provides such as following embodiments or shown in the drawings
Method operating procedure or apparatus structure, but in methods described or device can include based on routine or without performing creative labour
More or less operating procedures or modular structure.Necessary causality is not present in logicality the step of or in structure, this
A little execution sequences of step or the modular structure of device are not limited to the execution sequence or modular structure of the embodiment of the present application offer.It is described
Method or the device in practice or end product of modular structure when performing, can be according to embodiment or side shown in the drawings
Method or the execution of modular structure connection carry out order either perform (such as environment of parallel processor or multiple threads) parallel.
In the ER figures of page end, user is in addition to index table details, it is often desired to can have one can be with each table of overview
Between dependence visual angle, it is that details and global switching can be achieved that the application, which passes through simple reduction operation, and significant increase is used
Experience at family.The application can carry out illustrating for scheme, certainly, image described herein by taking the reduction operation of ER figures as an example
Reduction scheme can be not only used for ER figures, may be equally applicable for including but not limited to other digraphs.It is specific as shown in figure 1,
A kind of embodiment for the image downscaling method that the application provides can include：
Step S101, obtain the diminution ratio of image；
Step S102, if above-mentioned diminution ratio is less than setting ratio, according to the above-mentioned image of diminution scale smaller and show diminution
Image afterwards；
Step S103, if above-mentioned diminution ratio is more than setting ratio, shown in the way of the brief information of only display image
Above-mentioned image.
The image downscaling method that the application provides, different implementation strategies can be provided for different diminution ratios, such as low
Image down operation is normally performed under diminution ratio, under high-shrinkage small scale, omits detail information (such as word in part in image
The information such as Duan Liebiao, field type), prominent global content (such as dependence between table name, table), so as to more
The good overall situation browses whole data model, avoids high-shrinkage small scale hypograph word is smaller from causing user not see Chu, improves user
Experience.
In this application, above-mentioned setting ratio can be based on user's request sets itself, such as could be arranged to 40%, or
50% etc..When the ratio of reducing is less than the setting ratio, it is defined as low-shrinkage small scale, now can be normally contracted according to diminution ratio
Small image, and show the image after reducing.The information shown by image is in addition to including above-mentioned brief information under normal circumstances,
Also include at least one following information：The major key of each table, external key, literary name section.Above-mentioned brief information is generally referred in image
Corresponding relation between the table name of each table, and each table.When the ratio of reducing is more than the setting ratio, it is defined as high diminution
Ratio, above-mentioned brief information is only shown in the image now shown, consequently facilitating user sees the overall situation of whole image, avoids height
Word is too small after scaled down image.
The technical scheme of the application is illustrated below by specific embodiments and the drawings.Fig. 2 is the image contracting that the application proposes
Small flow chart, as shown in Fig. 2 the flow is including following：
Step S201, obtain image down ratio.
Step S202, judge scaled down size；If the ratio of reducing is 0, step S203 is performed, if the ratio of reducing
For 0-40%, then step S204 is performed, if the ratio of reducing is more than 40%, perform step S205.Assume in the present embodiment
Setting ratio is 40%.
Step S203, image are normally shown.Then step S206 is performed.
Step S204, image is according to diminution ratio scaled down.Then step S206 is performed.
Step S205, omit the information such as literary name section in image, the overall dependence of prominent each table.Then step S206 is performed.
Step S206, draws and shows again.
Fig. 3 is the schematic diagram for the ER images that the application proposes, as shown in figure 3, ER images include three tables, is shown in table
Table name, major key, external key, literary name segment information etc..Table name People in Fig. 3 represents personal information, and table name City is represented
City data, table name Relation represent which city record individual went to, and PK represents the table in three tables in Fig. 3
Major key, major key refer to major key (primary key), are one or more of table fields, and its value is used for unique terrestrial reference
Know a certain bar record in table.In the relation of two tables, major key is used for quoting in a table coming from another table
Specific record.Major key is a kind of unique key, the part that table defines.Being located at the external key of middle table in Fig. 3 is
FK1.If public keyword is major key in a relation, then this public keyword is referred to as another relation
External key.As can be seen here, external key illustrates the correlative connection between two relations.Major key is made with the external key of another relation
Table is referred to as main table, have this external key table be referred to as main table from table.External key is also referred to as foreign key.In Fig. 3 in three tables
Other information be literary name segment information.
Fig. 4 is the schematic diagram of the ER images after the diminution at high proportion that the application proposes, as shown in figure 4, after reducing at high proportion
ER images eliminate the information such as literary name section, highlight the entity relationship (such as more than 1 pair, multipair 1 etc.) between each table, together
More table entities can be shown on one screen, facilitate user's overall situation preview.
Based on providing a kind of image down device, such as following implementation with above-mentioned image downscaling method identical inventive concept, the application
Described in example.Because the principle of image down device solution problem is similar to image downscaling method, therefore the image down device
Implementation may refer to the implementation of image downscaling method, repeats part and repeats no more.
Fig. 5 is a kind of structural representation of embodiment of herein described image down device, as shown in figure 5, described device can be with
Including：
Acquiring unit 10, for obtaining the diminution ratio of image；Acquiring unit 10 is that the contracting of image is obtained in image down device
It the part of small scale, can be software, hardware or the combination of the two, such as can complete the input that diminution ratio obtains function
The components such as output interface, process chip.
Normal display unit 20, in the case of being less than setting ratio in the ratio of reducing, according to diminution scaled down image and show
Show the image after reducing；Normal display unit 20 is normal downscaled images and the part shown, Ke Yishi in image down device
Software, hardware or the combination of the two, such as can be input/output interface, the processing for completing image down function and display function
The components such as chip.
Brief display unit 30, in the case of being more than above-mentioned setting ratio in the ratio of reducing, according to the brief of only display image
The mode of information shows above-mentioned image.Brief display unit 30 is the part of display image in image down device, can be soft
Part, hardware or the combination of the two, such as can complete the members such as input/output interface, the process chip of image function of special displaying
Device.
The image down device that the application provides, different implementation strategies can be provided for different diminution ratios, such as low
Image down operation is normally performed under diminution ratio, under high-shrinkage small scale, omits detail information (such as word in part in image
The information such as Duan Liebiao, field type), prominent global content (such as dependence between table name, table), so as to more
The good overall situation browses whole data model, avoids high-shrinkage small scale hypograph word is smaller from causing user not see Chu, improves user
Experience.
In this application, above-mentioned setting ratio can be based on user's request sets itself, such as could be arranged to 40%, or
50% etc..When the ratio of reducing is less than the setting ratio, it is defined as low-shrinkage small scale, now can be normally contracted according to diminution ratio
Small image, and show the image after reducing.The information shown by image is in addition to including above-mentioned brief information under normal circumstances,
Also include at least one following information：The major key of each table, external key, literary name section.Above-mentioned brief information is generally referred in image
Corresponding relation between the table name of each table, and each table.When the ratio of reducing is more than the setting ratio, it is defined as high diminution
Ratio, above-mentioned brief information is only shown in the image now shown, consequently facilitating user sees the overall situation of whole image, avoids height
Word is too small after scaled down image.
The application can be designed by scripts such as Java script, flash and realized, pass through canvas or SVG (scalable arrows
Spirogram shape) etc. technology realize redrawing and showing for image.The technical scheme provided by the application, it is possible to achieve page end ER
Figure shows different content under different diminution ratios：1st, in the case of former ratio (not reducing), show the major key of table, external key,
Corresponding relation before the Back ground Informations such as literary name section and table；2nd, after low scale smaller, original image is reduced in proportion；3rd, high ratio
After example reduces, the general overview information such as table name, table corresponding relation are only shown.Whole data model is browsed so as to the more preferable overall situation.
Enable to show the details such as literary name section during enlarged drawing, dependence that can be between global displaying table during diminution.
Foregoing description in the application involved by each embodiment is only the application in some embodiments in the application, in some marks
Embodiment amended slightly can also carry out the scheme of each embodiment of above-mentioned the application on the basis of standard, model, method.When
So, other deformations without creativeness of the process method step described in the application the various embodiments described above are being met, still can be with
Identical application is realized, will not be repeated here.
Although this application provides the method operating procedure as described in embodiment or flow chart, based on conventional or without creativeness
Work can include more or less operating procedures.The step of being enumerated in embodiment order is only numerous step execution sequences
In a kind of mode, do not represent unique execution sequence., can be according to reality when device or client production in practice performs
Applying example, either method order shown in the drawings performs or performs (such as environment of parallel processor or multiple threads) parallel.
The device or module that above-described embodiment illustrates, it can specifically be realized by computer chip or entity, or by with certain work(
Can product realize.For convenience of description, it is divided into various modules during description apparatus above with function to describe respectively.Implementing
The function of each module can be realized in same or multiple softwares and/or hardware during the application.It is of course also possible to certain will be realized
The module of function combines realization by multiple submodule or subelement.
Method, apparatus described herein or module can realize controller by any suitable in a manner of computer readable program code
When mode realize, for example, controller can take such as microprocessor or processor and storage can be by (micro-) processor
Computer-readable medium, gate, switch, the special collection of the computer readable program code (such as software or firmware) of execution
Into circuit (Application Specific Integrated Circuit, ASIC), programmable logic controller (PLC) and embedded microcontroller
Form, the example of controller includes but is not limited to following microcontroller：ARC 625D、Atmel AT91SAM、Microchip
PIC18F26K20 and Silicone Labs C8051F320, the control that Memory Controller is also implemented as memory are patrolled
The part collected.It is also known in the art that in addition to realizing controller in a manner of pure computer readable program code,
Completely can by by method and step carry out programming in logic come controller with gate, switch, application specific integrated circuit, can compile
The form of journey logic controller and embedded microcontroller etc. realizes identical function.Therefore this controller is considered one kind
Hardware component, and what its inside was included is used to realize that the device of various functions can also to be considered as the structure in hardware component.Or
Even, it not only can be able to will be the software module of implementation method for realizing that the device of various functions is considered as but also can be hardware component
Interior structure.
Part of module in herein described device can be in the general context of computer executable instructions
Described in, such as program module.Usually, program module includes performing particular task or realizes the example of particular abstract data type
Journey, program, object, component, data structure, class etc..The application can also be put into practice in a distributed computing environment, at this
In a little DCEs, by performing task by communication network and connected remote processing devices.In Distributed Calculation
In environment, program module can be located in the local and remote computer-readable storage medium including storage device.
As seen through the above description of the embodiments, those skilled in the art can be understood that the application can be by soft
Part adds the mode of required hardware to realize.Based on such understanding, the technical scheme of the application is substantially in other words to existing skill
The part that art contributes can be embodied in the form of software product, can also be by being embodied in the implementation process of Data Migration
Out.The computer software product can be stored in storage medium, such as ROM/RAM, magnetic disc, CD, including some
Instruct to cause a computer equipment (can be personal computer, mobile terminal, server, or network equipment etc.)
Perform the method described in some parts of each embodiment of the application or embodiment.
Each embodiment in this specification is described by the way of progressive, and same or analogous part is mutual between each embodiment
Referring to what each embodiment stressed is the difference with other embodiment.The all or part of of the application can
For in numerous general or special purpose computing system environments or configuration.Such as：Personal computer, server computer, hold
Equipment or portable set, laptop device, mobile communication terminal, multicomputer system, the system based on microprocessor, can
Electronic equipment, network PC, minicom, the mainframe computer of programming include the distributed meter of any of the above system or equipment
Calculate environment etc..
Although depicting the application by embodiment, it will be appreciated by the skilled addressee that the application have it is many deformation and change and
Spirit herein is not departed from, it is desirable to which appended claim includes these deformations and changed without departing from spirit herein.
Claims (10)
1. a kind of image downscaling method, it is characterised in that methods described includes：
Obtain the diminution ratio of image；
If the diminution ratio is less than setting ratio, according to the diminution scale smaller described image and the figure after reducing is shown
Picture；
If the diminution ratio is more than the setting ratio, institute is shown in the way of the brief information for only showing described image
State image.
2. according to the method for claim 1, it is characterised in that described image includes the brief information, in addition to
At least one lower information：The major key of each table, external key, literary name section.
3. method according to claim 1 or 2, it is characterised in that the brief information includes：It is each in described image
Corresponding relation between the table name of individual table, and each table.
4. according to the method for claim 1, it is characterised in that described image is entity relationship ER figures.
5. according to the method for claim 1, it is characterised in that the setting ratio is 40%.
6. a kind of image down device, it is characterised in that described device includes：
Acquiring unit, for obtaining the diminution ratio of image；
Normal display unit, in the case of being less than setting ratio in the diminution ratio, according to the diminution scale smaller institute
State image and show the image after reducing；
Brief display unit, in the case of being more than the setting ratio in the diminution ratio, according to only showing described image
The mode of brief information show described image.
7. device according to claim 6, it is characterised in that described image includes the brief information, in addition to
At least one lower information：The major key of each table, external key, literary name section.
8. the device according to claim 6 or 7, it is characterised in that the brief information includes：It is each in described image
Corresponding relation between the table name of individual table, and each table.
9. device according to claim 6, it is characterised in that described image is entity relationship ER figures.
10. device according to claim 6, it is characterised in that the setting ratio is 40%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610305162.5A CN107358574A (en) | 2016-05-10 | 2016-05-10 | A kind of image downscaling method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610305162.5A CN107358574A (en) | 2016-05-10 | 2016-05-10 | A kind of image downscaling method and device |
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