CN1794776A - Method and system of processing image and its applicated in immediat communication - Google Patents
Method and system of processing image and its applicated in immediat communication Download PDFInfo
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Abstract
This invention discloses an image process and a method for using it in instant communication and a system including: A, a mobile terminal sends a request message for accessing an assigned image to a server by a communication protocol, B, the server gets the size of a largest image and a format supported by the mobile terminal, C, fetching the size of the being accessed image to be compared with the size of the largest image supported by the cell phone, D, adjusting the required information for accessing an image to said mobile terminal to display size of said image completely and transforming the format of the image to that supported by the terminal, E, the server delivers the adjusted image with its format transformed to the mobile terminal.
Description
Technical field
The present invention relates to a kind of method and system of handling image, relate in particular to a kind of method and system of answering the access request processing image of portable terminal and being applied to instant messaging.
Background technology
Current, portable terminal can pass through WAP (wireless application protocol) (WAP, Wireless Application Protocol), and image surfs the web.But owing to be subjected to the restriction of self screen size, the maximum image size that portable terminal is supported is less relatively, therefore can only browse picture size and the matched image of mobile terminal screen size, can not browse the relatively large image of size.
In order to overcome above-mentioned defective, existing method generally is that server side sends portable terminal to again by manually large-size images being cut into the image that adapts with the mobile terminal screen size when mobile terminal request visit large-size images.This mode can't transmit the image that is fit to its demonstration from the trend portable terminal, has wasted great amount of manpower, and treatment effeciency is low.
Summary of the invention
Main purpose of the present invention provides a kind of method and system of handling image, can transmit the image that is fit to its screen display from the trend portable terminal, makes portable terminal can visit the image of various sizes.
A kind of method of handling image, this method may further comprise the steps:
The A portable terminal sends the request message of visit specify image to server by communication protocol;
The B server is obtained the size of maximum image that portable terminal is supported and the picture format of being supported;
C reads the size of the access images of wanting, relatively the size of institute's access images and the size of maximum image that mobile phone is supported;
D adjusts to this portable terminal with described request message institute access images is enough to this size of images of complete demonstration, and is the picture format that described portable terminal is supported with the format conversion of this image;
The E server by communication protocol will adjust and format conversion after image send portable terminal to.
Maximum image size that various model portable terminals are supported and/or the picture format of being supported are set in server, server is according to the model of this portable terminal that is identified in the request message in the steps A, reads maximum image size that this portable terminal supports and/or the picture format of being supported from the configuration information of self.
The method of adjusting described request message institute access images size among the step D is: the length and wide being divided by of the length of the image that portable terminal is visited and the wide maximum image of supporting with portable terminal respectively, two quotients that obtain dwindle the image of being visited with wherein bigger quotient as minimum minification.
At least two kinds of picture formats of described portable terminal support in step D, are separately converted to the image of being visited the image of every kind of form; In step e, send portable terminal to through the minimum image that takes up space after the format conversion with above-mentioned.
At least two kinds of picture formats of described portable terminal support in step D, are selected the wherein the highest a kind of picture format of compression ratio, and the image of being visited is converted into this picture format.
Server is obtained the size of maximum image that portable terminal is supported and the picture format of being supported by reading the agent field in the request message among the step B from the allocation list of server end.
A kind of system that handles image, the gateway that comprises portable terminal and the communication of realization WAP (wireless application protocol), it is characterized in that: also comprise the picture treatment system, gateway and picture treatment system link, and the picture treatment system is handled the back to original image and produced the reading picture and send it to portable terminal.
Described picture treatment system comprises central processing module, image data server and portable terminal Adapted information table,
Central processing module finish and gateway between information interaction, and to the reading of pictorial information in the image data server, processing and data forwarding, and addressable portable terminal Adapted information table,
The image data server is preserved original image and information thereof,
Portable terminal Adapted information table reflects user agent's information, includes dimension information, mobile terminal picture form support information and the portable terminal pixel support information etc. of maximum image that various portable terminal is supported.
A kind of method of handling image applications in instant messaging, this method may further comprise the steps:
A user is by instant communication server visit image data server, to the mobile terminal number and the picture browsing information of central processing module transmission and instant messaging number binding;
The B central processing module obtains the size of maximum image that portable terminal is supported and the picture format of being supported;
The C central processing module is taken out required original image according to picture browsing information from the image data server;
The D central processing module carries out producing the reading picture after the adaptation processing to original image;
The E central processing module will be read picture by gateway and will be sent to portable terminal.
The method of among the step D original image being carried out adaptation processing is: with the length and wide being divided by of the length of the image of original image and the wide maximum image of supporting with portable terminal respectively, two quotients that obtain dwindle the image of being visited with wherein bigger quotient as minimum minification.
In step D, the image of being visited is separately converted to the image of every kind of form, in step e, be sent to portable terminal through the take up space image of minimum of institute after the format conversion with above-mentioned.
Because the picture size that method of the present invention is supported according to every kind of portable terminal, large-sized image is reduced into the image that is fit to the direct demonstration of mobile terminal screen sends to portable terminal, therefore can make portable terminal directly visit the image of various sizes, do not need artificial participation, improved image processing efficient, save cost, and improved user's satisfaction.
Description of drawings
Fig. 1 is a system construction drawing of the present invention.
Fig. 2 is the flow chart of the method for the invention.
Fig. 3 is applied to the flow chart of instant messaging for the present invention.
Embodiment
Further specify implementation method of the present invention below in conjunction with the drawings and specific embodiments.
The portable terminal that the present invention was suitable for has multiple, and for example: mobile phone, personal digital assistant (PDA, PersonalDigital Assistant) etc., present embodiment is that the present invention will be described for example with the mobile phone.
As shown in Figure 1, the present invention includes the gateway 2 of portable terminal 1 and the communication of realization WAP (wireless application protocol), gateway 2 links with picture treatment system 3, and 3 pairs of original images of picture treatment system carry out producing the reading picture and sending it to portable terminal 1 after the adaptation processing.
Picture treatment system 3 comprises central processing module 31, image data server 32 and portable terminal Adapted information table 33, wherein: central processing module 31 finish and gateway 2 between information interaction, and to the reading of pictorial information in the image data server 32, processing and data forwarding, and addressable portable terminal Adapted information table 33.
Image data server 32 is preserved original image and information thereof.
Portable terminal Adapted information table 33 reflects user agent's information, includes dimension information, mobile terminal picture form support information and the portable terminal pixel support information etc. of maximum image that various portable terminal is supported.
Because portable terminal generally carries the configuration information of this portable terminal in the access images request message that server sends, described configuration information comprises the model identification of this portable terminal at least, can further include the maximum image size that this portable terminal supports and picture format of being supported etc., therefore the present invention can compress with format conversion according to the large-size images that these configuration informations will be visited portable terminal and handle, and makes that large-size images can complete demonstration on the screen of portable terminal.For the portable terminal that prevents some type in the access images request message, do not carry the maximum image size of supporting or information such as the picture format of supporting, the maximum image size that the present invention also can support the different model portable terminal and information setting such as the picture format of supporting in the existing allocation list of server end, after receiving the access images request message, search portable terminal according to the portable terminal model in the request message and support the maximum image size or the picture format of supporting then.
Referring to Fig. 2, method of the present invention may further comprise the steps:
During image in step 101, the user mobile phone accessed web page, send the request message of visit specify image to server by wap protocol.The configuration information that comprises current phone in the HTTP packet header of this request message, for example the maximum image size supported of the model of this mobile phone, this mobile phone, picture format that this mobile phone is supported etc.In wap protocol, generally adopt the model of this mobile phone of user agent (Useragent) field identification; Adopt the size of this field identification maximum image that this mobile phone is supported of HTTP_X_UP_DEVCAP_SCREENPIXELS; The picture format that adopts this mobile phone of HTTP_ACCEPT field identification to be supported.
After step 102, server are received the access images request message, read in this request message HTTP packet header and be used to identify the field that mobile phone is supported the maximum image size, to obtain the size of maximum image that mobile phone is supported.
But because some mobile phone does not carry the field that identifies the maximum image size of supporting in the access images request message yet, therefore, server also need be carried out following steps 103.
Step 103, judge whether that success is read and be used to identify the field that mobile phone is supported the maximum image size, if then execution in step 105, otherwise, execution in step 104.
Step 104, read the user agent's field in the HTTP packet header,, from the allocation list of server end, read the size of this model maximum image that mobile phone is supported according to the user mobile phone model that identifies in this user agent's field.If the not size of the maximum image supported of this model mobile phone, then process ends in the allocation list of server end; Perhaps send and obtain the request message that this mobile phone is supported the maximum image size to mobile phone, after mobile phone is received this request message, return the maximum image size that this mobile phone is supported to server again, after the maximum image size that server acquisition mobile phone is supported, this maximum image size can be deposited in position corresponding in the allocation list with this mobile phone model; The perhaps current flow process of FEFO, again at server side by the information of manually upgrading again in the allocation list, add the maximum image dimension information of being supported of new model mobile phone correspondence.
The present invention is not execution in step 102 and step 103 also, and direct execution in step 104, obtains the size of maximum image that user mobile phone is supported.
Step 105, read the field that is used to identify picture format that mobile phone is supported in the described request message HTTP packet header, for example the HTTP_ACCEPT field obtains the picture format that user mobile phone is supported.The picture format that general mobile phone is supported is: jpeg, jpg, gif, bmp and png etc.
If read the not success of HTTP_ACCEPT field, also can from the allocation list of server end, read the picture format that this model mobile phone is supported herein, according to the user mobile phone model that identifies in user agent's field.Also can not read the HTTP_ACCEPT field, but, from the allocation list of server end, read the picture format that this model mobile phone is supported directly according to the user mobile phone model that identifies in user agent's field.If the not picture format supported of this model mobile phone, then process ends in the allocation list of server end; Perhaps send the request message that obtains picture format that this mobile phone is supported to mobile phone, after mobile phone is received this request message, return the picture format that this mobile phone is supported to server again, behind the picture format that server acquisition mobile phone is supported, this picture format can be deposited in position corresponding in the allocation list with this mobile phone model; Perhaps, the current flow process of FEFO, again at server side by the information of manually upgrading again in the allocation list, add the picture format information of being supported of new model mobile phone correspondence.
In addition, this step 105 also can be carried out simultaneously with above-mentioned steps 102 to step 104, also can carry out to step 104 in above-mentioned steps 102.
Step 106, read the size of the access images of wanting, relatively the size of institute's access images and the size of maximum image that mobile phone is supported; Be of a size of the length of image and wide herein, as long as the growing up in the length of maximum image that mobile phone is supported of institute's access images, perhaps institute's access images is wider than the wide of maximum image that mobile phone is supported, then execution in step 107, otherwise, transmit the image of being visited, process ends to mobile phone by wap protocol.
Step 107, described request message institute access images is narrowed down to this portable terminal be enough to this size of images of complete demonstration; And be the picture format that described portable terminal is supported further with the format conversion of this image.
, suppose that the user supports the length of maximum image and wide for a1 and b1 herein, the length of the access images of and wide be a2 and b2, long and the wide and maximum image that the user supports of calculating institute access images is grown and wide ratio, is respectively: K1=a2/a1, and K2=b2/b1; Then choose the minimum minification that the bigger value among K1 and the K2 will be dwindled as image; Dwindle the image of being visited with this minimum minification, perhaps dwindle the image of being visited, but the image after needing to guarantee to dwindle can normally intactly show on mobile phone screen with the multiple bigger than this minimum minification.
The format conversion with institute's access images be above-mentioned user mobile phone support picture format the time, if at least two kinds of picture formats of user mobile phone support, then the form of institute's access images can be separately converted to all forms that user mobile phone is supported, the size of the shared memory space of image after these format conversion relatively again, select the minimum image that wherein takes up space, with this image as will be to the image of user mobile phone transmission.
Perhaps, select a kind of form in the picture format that mobile phone is supported, the format conversion with want access images is the form of current selection again, and the image conduct that will transform behind the form will be to the image of user mobile phone transmission.When each the selection, can select identical picture format, also can select different picture formats.Wherein, the standard of selection picture format can have multiple, for example: according to the compression ratio of various forms, select the highest a kind of picture format of compression ratio to transform.
Above-mentioned image is dwindled and transformed technology have multiple, for example: run length encoding (run-lengthencoding) technology, huffman coding (Huffman encoding) technology etc., and these technology are existing known technology, no longer narration herein.
Step 108, server will dwindle by wap protocol and format conversion after image send user mobile phone to, like this, on user mobile phone, just can intactly show the image that will visit.
See also Fig. 3 again, the flow process that the present invention is applied to instant messaging is as follows.
I, user are by instant messaging number log-in instant communication server 4.
II, by instant communication server 4 visit image data servers 32, transmit mobile terminal number and picture browsing information with described instant messaging number binding to central processing module 31.
III, central processing module 31 are according to this mobile terminal number, search for the information of mobile terminal that these portable terminals 1 are logined therein from instant communication server 4, so that obtain the dimension information and the mobile terminal picture form support information of maximum image that this portable terminal is supported; If it's not true, central processing module 31 is sent the information of mobile terminal request of obtaining to bound portable terminal 1, described portable terminal 1 is made corresponding answer, and central processing module 31 is therefrom obtained dimension information, mobile terminal picture form support information, portable terminal pixel support information of maximum image that this portable terminal is supported etc. or mobile phone users proxy information.
IV, central processing module 31 are taken out required original image according to picture browsing information from image data server 32.
Picture was read in generation after V, 31 pairs of original images of central processing module carried out adaptation processing:
Va, central processing module 31 are by Step II I, directly obtain dimension information, mobile terminal picture form support information, portable terminal pixel support information of maximum image that this portable terminal is supported etc., or, obtain dimension information, mobile terminal picture form support information, portable terminal pixel support information of maximum image that this portable terminal is supported etc. from portable terminal Adapted information table 33 according to the mobile phone users proxy information.
Vb, 31 pairs of original images of central processing module dwindle or processing and amplifying, make its size be suitable for the size of maximum image that portable terminal is supported.
For example, the length and width of establishing original image is respectively M, N, and the length and width of dimension of picture that portable terminal is supported is respectively m, n, generally speaking, the length and width of original image is bigger than the length and width of dimension of picture that portable terminal is supported, obtains two parameter K 1 and K2, wherein:
K1＝M/m；
K2＝N/n
Get the higher value Max[K1 among wherein K1, the K2, K2], this higher value Max[K1, K2] multiple that then need dwindle for original image.
Vc, central processing module 31 are according to mobile terminal picture form support information, if necessary, picture format is converted to the form that portable terminal 1 can be supported, as jpeg, jpg, gif, bmp or png etc., if the form that described portable terminal 1 can be supported is two or more, then the file size of changing back corresponding two or more corresponding format pictures that produced is compared, choose wherein less or minimum picture, like this, help to save the transmission quantity of network.
The amount of pixels of Vd, 31 couples of above-mentioned steps Vc of central processing module gained picture is compared with portable terminal pixel support information, if the amount of pixels of above-mentioned steps Vc gained picture, is got above-mentioned steps Vc gained picture less than portable terminal pixel support amount for reading picture; If the amount of pixels of above-mentioned steps Vc gained picture is greater than portable terminal pixel support amount, after above-mentioned steps Vc gained picture suitably dwindled, make the amount of pixels of dwindling the back picture be not more than portable terminal pixel support amount, get the described back picture that dwindles for reading picture, so just make the amount of pixels of reading picture be fit to portable terminal pixel support information.
By above-mentioned steps Va, step Vb, step Vc and step Vd, produce and read picture.
If the length and width of original image is littler than the length and width of dimension of picture that portable terminal is supported, then need correspondingly to amplify, this is self-evident, but when amplifying, should consider to amplify the definition of back picture, can suitably increase transition pixel or, can reduce mosaic effect like this picture after amplifying according to the information of portable terminal 1 pixel of supporting to picture softening processing, make the picture high-quality more after the amplification, look to seem more clear.
Like this, make the size of reading picture under the prerequisite of the Aspect Ratio that keeps original image, be fit to the full-size of dimension of picture that portable terminal is supported or portable terminal pixel support amount.
VI, central processing module 31 will be read picture by gateway 2 and be sent to portable terminal 1.
In the present embodiment, the user is by instant messaging number log-in instant communication server 4, with respect to direct control portable terminal 1, the operation of visit image data server 32 is more convenient, directly perceived, and can equally immediately show on portable terminal 1 again, browse for needed picture.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with the people of this technology in the disclosed technical scope of the present invention; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.
Claims (11)
1, a kind of method of handling image is characterized in that, this method may further comprise the steps:
The A portable terminal sends the request message of visit specify image to server by communication protocol;
The B server is obtained the size of maximum image that portable terminal is supported and the picture format of being supported;
C reads the size of the access images of wanting, relatively the size of institute's access images and the size of maximum image that mobile phone is supported;
D adjusts to this portable terminal with described request message institute access images is enough to this size of images of complete demonstration, and is the picture format that described portable terminal is supported with the format conversion of this image;
The E server by communication protocol will adjust and format conversion after image send portable terminal to.
2, the method for claim 1, it is characterized in that in server, being provided with maximum image size that various model portable terminals are supported and/or the picture format of being supported, server is according to the model of this portable terminal that is identified in the request message in the steps A, reads maximum image size that this portable terminal supports and/or the picture format of being supported from the configuration information of self.
3, the method for claim 1, it is characterized in that among the step D that the method for adjusting described request message institute access images size is: the length and wide being divided by of the length of the image that portable terminal is visited and the wide maximum image of supporting with portable terminal respectively, two quotients that obtain dwindle the image of being visited with wherein bigger quotient as minimum minification.
4, the method for claim 1 is characterized in that at least two kinds of picture formats of described portable terminal support, in step D, the image of being visited is separately converted to the image of every kind of form; In step e, send portable terminal to through the minimum image that takes up space after the format conversion with above-mentioned.
5, as the method for claim 1, it is characterized in that at least two kinds of picture formats of described portable terminal support, in step D, select the wherein the highest a kind of picture format of compression ratio, the image of being visited is converted into this picture format.
6, the method for claim 1 is characterized in that server is obtained the size of maximum image that portable terminal is supported and the picture format of being supported by reading the agent field in the request message among the step B from the allocation list of server end.
7, a kind of system that handles image, the gateway that comprises portable terminal and the communication of realization WAP (wireless application protocol), it is characterized in that: also comprise the picture treatment system, gateway and picture treatment system link, and the picture treatment system is handled the back to original image and produced the reading picture and send it to portable terminal.
8, system as claimed in claim 7 is characterized in that described picture treatment system comprises central processing module, image data server and portable terminal Adapted information table,
Central processing module finish and gateway between information interaction, and to the reading of pictorial information in the image data server, processing and data forwarding, and addressable portable terminal Adapted information table,
The image data server is preserved original image and information thereof,
Portable terminal Adapted information table reflects user agent's information, includes dimension information, mobile terminal picture form support information and the portable terminal pixel support information etc. of maximum image that various portable terminal is supported.
9, a kind of method of handling image applications in instant messaging is characterized in that this method may further comprise the steps:
The party A-subscriber is by instant communication server visit image data server, to the mobile terminal number and the picture browsing information of central processing module transmission and instant messaging number binding;
The B central processing module obtains the size of maximum image that portable terminal is supported and the picture format of being supported;
The C central processing module is taken out required original image according to picture browsing information from the image data server;
The D central processing module carries out producing the reading picture after the adaptation processing to original image;
The E central processing module will be read picture by gateway and will be sent to portable terminal.
10, a kind of method of handling image applications in instant messaging as claimed in claim 9, it is characterized in that among the step D that the method for original image being carried out adaptation processing is: with the length and wide being divided by of the length of the image of original image and the wide maximum image of supporting with portable terminal respectively, two quotients that obtain dwindle the image of being visited with wherein bigger quotient as minimum minification.
11, a kind of method of handling image applications in instant messaging as claimed in claim 9, it is characterized in that in step D, the image of being visited is separately converted to the image of every kind of form, in step e, is sent to portable terminal through the take up space image of minimum of institute after the format conversion above-mentioned.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2004101044183A CN100553277C (en) | 2004-09-15 | 2004-12-22 | A kind of method and system of handling image and being applied to instant messaging |
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| CNB2004101044183A CN100553277C (en) | 2004-09-15 | 2004-12-22 | A kind of method and system of handling image and being applied to instant messaging |
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