CN101309476B - Mobile apparatus and method for changing image size - Google Patents
Mobile apparatus and method for changing image size Download PDFInfo
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- CN101309476B CN101309476B CN2007102006182A CN200710200618A CN101309476B CN 101309476 B CN101309476 B CN 101309476B CN 2007102006182 A CN2007102006182 A CN 2007102006182A CN 200710200618 A CN200710200618 A CN 200710200618A CN 101309476 B CN101309476 B CN 101309476B
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Abstract
The invention relates to a mobile device, which comprises a picture acquisition module, a first operation module, a second operation module, a third operation module and a picture formation module. The picture acquisition module is used to obtain the pixel data of the original picture and the template picture. The first operation module is used to operate the accuracy digit of the length and the width of the template picture. The second operation module is used to operate the accumulated value of the length and the width of the template picture and to take the integer from the accumulated value to operate. The third operation module is used to obtain the corresponding relationship of the template picture pixel and the original picture pixel through summation and displacement operation. The picture formation module is used to form new pictures according to the corresponding relationship. And the invention also provides a method for modifying the size of picture for the mobile device. The mobile device and the method for modifying the size of picture cause the original floating-point arithmetic to be replaced with the integer arithmetic and the original multiply operation to be replaced with the additive operation, thereby the processing speed to the picture size of the mobile device is quickened, the time is saved, and the user satisfaction is improved.
Description
Technical field
The present invention relates to a kind of mobile device, relate in particular to the method for a kind of mobile device and change picture size thereof.
Background technology
Along with the continuous development of the communication technology, mobile device has increasing new function, such as, mobile device can receive and show exterior artwork.What mobile device Showed Picture is the focus of user's common concern soon and slowly.The size that the size of exterior artwork and mobile device can Show Picture is often inconsistent, and existing mobile device is that exterior artwork is carried out floating-point operation and multiplying processing, to obtain to be suitable for the picture size that mobile device shows.So, floating-point operation and multiplying processing procedure more complicated cause the time of mobile device processing picture long like this, if when exterior artwork is very big, more can cause mobile device to be in the state of handling picture for a long time, influence user's use mood.
Summary of the invention
In view of this, be necessary to provide a kind of mobile device, the picture that receives can be changed to the size that is fit to its demonstration.
Simultaneously also need to provide a kind of method that is applicable to the change picture size of described mobile device.
A kind of mobile device comprises that picture acquisition module, first computing module, second computing module, the 3rd computing module and picture form module.The picture acquisition module is used to obtain the pixel data of source picture and template picture.First computing module is used for according to the length of the described template picture of described pixel data computing of described source picture and described template picture and the accuracy figure place of width.Second computing module is used for according to the described pixel data of described source picture and described template picture and the length of the described template picture of described accuracy figure place computing and the accumulated value of width, and described accumulated value is carried out the round numbers computing.The 3rd computing module is used for according to the described pixel data of described source picture and described template picture and the integer of described accumulated value, and obtains the corresponding relation of template picture pixel and source picture pixel via addition and displacement computing.Picture forms module and is used for forming new picture according to the described corresponding relation of described template picture pixel and source picture pixel.
A kind of method of mobile device change picture size, described method comprises the pixel data that obtains source picture and template picture, the accuracy figure place of the X-axis of the described template picture of union and Y-axis; The accumulated value of the described template picture of computing on X-axis and Y-axis, and described accumulated value carried out the round numbers computing; Obtain the corresponding relation of described template picture pixel and described source picture pixel by addition and displacement computing; And form new picture according to described corresponding relation.
The method of described mobile device and change picture size thereof, make mobile device in the process of handling picture size, integer arithmetic is replaced original floating-point operation, add operation replaces original multiplying, thereby accelerated the speed of mobile device processing picture size, save the time, improved user's satisfaction.
Description of drawings
Figure 1 shows that the module map of the mobile device in an embodiment of the present invention.
Figure 2 shows that the flow chart of the method for the change picture size in an embodiment of the present invention.
Embodiment
Figure 1 shows that the module map of the mobile device 10 in an embodiment of the present invention.In the present embodiment, mobile device 10 comprises that picture acquisition module 11, first computing module 12, second computing module 13, the 3rd computing module 14 and picture form module 15.In the present embodiment, mobile device 10 is used for the pixel of source picture with mobile device 10 template picture shown, the source picture is the exterior artwork that mobile device 10 obtains, template picture be mobile device 10 when Showing Picture with reference to picture, the picture pixel data of mobile device 10 is provided.
The 3rd computing module 14 links to each other with 13 communications of second computing module, be used to receive the integer of the accumulated value of the pixel data of source picture that second computing module 13 sends and template picture and template picture, and obtain template picture pixel and source picture pixel corresponding relation via addition and displacement computing.In the present embodiment, the corresponding relation of template picture pixel and source picture pixel is the relevant position of every bit on the picture of source on the template picture.
In the present embodiment, described the 3rd computing module 14 also is used for wherein one of selected Y-axis or X-axis, and calculating described selected axle and another last corresponding relevant position on the picture of described source, wherein said selected axle goes up every bit and the point on another forms one-to-one relationship.The selected Y-axis of the 3rd computing module 14 are then calculated corresponding relevant position on the picture of source on point on the Y-axis and the X-axis.In the present embodiment, on Y-axis, when the 3rd computing module 14 whenever carries out next point processing, then accumulated value dy ' is added up once, be dy '+dy ', and the value after described the adding up is converted to binary digit, and and binary digit is offset Ny ' computing to the right, convert the binary digit of skew to ten's digit.In the present embodiment, during y ' value of the 3rd computing module 14 every calculating, all then that described y ' value is corresponding x ' values are calculated, after calculating finishes, carry out next step computing of y ' value again, be the width value of template picture up to the y ' of template picture value.In other execution mode of the present invention, the 3rd computing module 14 also can be selected X-axis earlier and calculate.
In the present embodiment, still with the above-mentioned example that is exemplified as, in template picture, x ' is desirable 0,1,2, and y ' desirable 0,1,2, be that point on the template picture is respectively (0,0), (1,0), (2,0), (0,1), (1,1), (2,1), (0,2), (1,2), (2,2).In the present embodiment, from (0,0) beginning computing, be followed successively by
(1，0)、(2，0)、(0，1)、(1，1)、(2，1)、(0，2)、(1，2)、(2，2)。Wherein, (0 of template picture, 0) corresponding to (0 of source picture, 0), then carries out next step computing, at this moment, then x ' is got 1, promptly x is carried out next step computing, then dx ' is carried out the accumulated value computing, be i.e. dx '=0+dx '=715827882, and to convert binary digit to be 101010101010101010101010101010, at this moment, binary system is offset Nx ' computing to the right to dwindle its value, the value of drawing is 000000000000000000000000000000, then converting ten's digit to is 0, the point of correspondence on the picture of source that is x '=1 is x=0, because do not carry out next step computing to y ' this moment, y '=0 then, then the point (1,0) of template picture is corresponding with the point (0,0) of source picture.At this moment, again x ' is got 2, dx '=dx '+dx '=715827882+715827882=1431655764 more then adds up the value behind the preceding one-accumulate, and to convert binary digit to be 1010101010101010101010101010100, to the right be offset Nx ' computing to dwindle its value with binary digit this moment, the value of drawing is 0000000000000000000000000000001, then converting ten's digit to is 1, the point of correspondence on the picture of source that is x '=2 is x=1, the point (2 of template picture then, 0) corresponding with the point (1,0) of source picture.The computing of other template picture point and the like, no longer narration herein.
Figure 2 shows that the flow chart of the method for the change picture size in an embodiment of the present invention.In the present embodiment, the method for described change picture size is applied in the mobile device 10, and promptly described mobile device 10 receives exterior artwork, and the picture pixel of exterior artwork with self shown.In the present embodiment, the source picture is the exterior artwork that mobile device 10 obtains, template picture be mobile device 10 when Showing Picture with reference to picture, the picture pixel data of mobile device 10 is provided.
In step S200, picture acquisition module 11 obtains the pixel data of source picture and template picture, and is sent to first computing module 12.In the present embodiment, the pixel of source picture and template picture can identify with long * is wide, wherein, described source picture is corresponding with the length and the X-axis of described template picture, described source picture is corresponding with the wide and Y-axis of described template picture, with the length of x identification sources picture, and y identification sources picture wide, use the length of x ' sign template picture, use the wide of y ' sign template picture.In the present embodiment, the pixel of source picture is x*y, and the pixel of template picture is x ' * y '.
In step S202, the pixel data of first computing module, 12 reception sources pictures and template picture, the accuracy figure place of the length of union template picture and width.In the present embodiment, the accuracy figure place is to be used for identifying the length of template picture and the metric decimal digits of width, use the decimal digits of Nx ' sign length, use the decimal digits of Ny ' sign width, Nx ' available expression " A-Bx " sign, Ny ' available expression " A-By " sign, wherein, A identifies the number of bits of the operating system of described mobile device 10, described Bx identifies the number of bits of described source figure leaf length, and described By identifies the number of bits of described source picture width.In the present embodiment, mobile device 10 is a 32-bit operating system, is 2 if mobile device 10 obtains the length of source picture, wide is 4, and then 2 usefulness binary forms are shown 10, promptly represents 2 with 2 binary systems, so 4 usefulness binary forms are shown 100, promptly represent 4 with 3 binary systems, then the value of Nx ' is 30.The value that can calculate Ny ' with said method equally is 29.
In step S204, the length of second computing module, 13 computing template picture and the accumulated value of width, and accumulated value carried out the round numbers computing.In the present embodiment, after the length of the source picture that second computing module, 13 receptions, first computing module 12 sends and the pixel data of template picture and template picture and the accuracy figure place of width, the length of beginning calculation template picture and the accumulated value of width, and accumulated value carried out integer arithmetic, and send data to the three computing modules 14 after the computing.In the present embodiment, use the accumulated value of the length of dx ' expression template picture, use the accumulated value of the width of dy ' expression template picture, dx ' available expression " xscale*2
Nx' " expression, dy ' available expression " yscale*2
Ny' " expression, wherein xscale is the ratio value of x and x ', yscale is the ratio value of y and y ', xscale*2
Nx' meaning is that the ratio value of x and x ' is amplified 2
Nx' multiple, yscale*2
Ny' meaning is that the ratio value of y and y ' is amplified 2
Ny' multiple.In the present embodiment, still with the above-mentioned example that is exemplified as, dx '=xscale*2
Nx', dy '=yscale*2
Ny', be dx '=2/3*2
30, dy=' 4/3*2
29In the present embodiment, 13 couples of dx ' of second computing module and dy ' carry out round numbers, and promptly the value of dx ' is 715827882, and the value of dy ' is 715827882.
In step S206, the 3rd computing module 14 obtains the corresponding relation of template picture pixel and source picture pixel by addition and displacement computing.In the present embodiment, the corresponding relation of template picture pixel and source picture pixel is the relevant position of every bit on the picture of source on the template picture.In the present embodiment, behind the integer of the source picture that the 3rd computing module 14 receptions second computing module 13 sends and the pixel data of template picture and accumulated value, begin to reach data to the picture that sends every bit relevant position on the picture of source on the template picture and form module 15 by accumulated value being carried out the relevant position of every bit on the picture of source on add operation and the skew computing calculation template picture.
In the present embodiment, described the 3rd computing module 14 also is used for wherein one of selected Y-axis or X-axis, and calculates described selected axle and another last corresponding relevant position on the picture of described source.The selected Y-axis of the 3rd computing module 14, the some formation one-to-one relationship on the every bit on the Y-axis and the X-axis is calculated corresponding relevant position on the picture of source on point on the Y-axis and the X-axis again.In the present embodiment, on Y-axis, when the 3rd computing module 14 whenever carries out next point processing, accumulated value dy ' is added up once, be dy '+dy ', value after will adding up again is converted to binary digit, and binary digit is offset Ny ' computing to the right, converts the binary digit after the skew to ten's digit.During y ' value of the 3rd computing module 14 every calculating, all then that described y ' value is corresponding x ' values are calculated, and after the calculating of x ' value finishes, carry out next step computing of y ' value again, are the width value of template picture up to the y ' of template picture value.In other execution mode of the present invention, the 3rd computing module 14 also can be selected X-axis and calculate.
In the present embodiment, still with the above-mentioned example that is exemplified as, in template picture, x ' is desirable 0,1,2, and y ' desirable 0,1,2, promptly the point on the template picture is respectively (0,0), (1,0), (2,0), (0,1), (1,1), (2,1), (0,2), (1,2), (2,2).In the present embodiment, from (0,0) beginning computing, be followed successively by (1,0), (2,0), (0,1), (1,1), (2,1), (0,2), (1,2), (2,2).Wherein, (0 of template picture, 0) corresponding to (0 of source picture, 0), then carries out next step computing, at this moment, then x ' is got 1, promptly x is carried out next step computing, then dx ' is carried out the accumulated value computing, be i.e. dx '=0+dx '=715827882, and to convert binary digit to be 101010101010101010101010101010, at this moment, binary digit is offset Nx ' computing to the right to dwindle its value, the value of drawing is 000000000000000000000000000000, then converting ten's digit to is 0, the point of correspondence on the picture of source that is x '=1 is x=0, because do not carry out next step computing to y ' this moment, y '=0 then, then the point (1,0) of template picture is corresponding with the point (0,0) of source picture.At this moment, again x ' is got 2, dx '=dx '+dx '=715827882+715827882=1431655764 more then adds up the value behind the preceding one-accumulate, and to convert binary digit to be 1010101010101010101010101010100, to the right be offset Nx ' computing to dwindle its value with binary digit this moment, the value of drawing is 0000000000000000000000000000001, converting ten's digit to is 1, the point of some correspondence on the picture of source that is x '=2 is x=1, the point (2 of template picture then, 0) corresponding with the point (1,0) of source picture.The operation method of the point of other template picture and the like, no longer narration herein.
At step S206, picture forms module 15 and forms new picture according to described corresponding relation.In the present embodiment, picture forms module 15 and receives the template picture pixel of the 3rd computing module 15 transmissions and the corresponding relation of source picture pixel, and forms new picture according to described corresponding relation.
The method of described mobile device 10 and change picture size thereof, make mobile device 10 in the process of handling picture size, integer arithmetic is replaced original floating-point operation, add operation replaces original multiplying, thereby accelerated the speed of mobile device 10 processing picture size, saved the time.
Claims (11)
1. a mobile device is characterized in that, described mobile device comprises:
The picture acquisition module is used to obtain the pixel data of source picture and template picture;
First computing module is used for according to the length of the described template picture of pixel data computing of described source picture and described template picture and the accuracy figure place of width;
Second computing module is used for pixel data and described accuracy figure place according to described source picture and described template picture, the length of the described template picture of computing and the accumulated value of width, and described accumulated value is carried out the round numbers computing;
The 3rd computing module is used for obtaining the corresponding relation of described template picture pixel and source picture pixel via addition and displacement computing according to the pixel data of described source picture and described template picture and the integer of described accumulated value; And
Picture forms module, is used for forming new picture according to the described corresponding relation of the pixel of the pixel of described template picture and source picture.
2. mobile device as claimed in claim 1, it is characterized in that, described accuracy figure place is to be used for identifying the length of described template picture and the metric decimal digits of width, use the accuracy figure place of the length of the described template picture of Nx ' sign, Nx ' identifies with expression formula " A-Bx ", use the accuracy figure place of the width of the described template picture of Ny ' sign, Ny ' identifies with expression formula " A-By ", described A identifies the operating system number of bits of described mobile device, described Bx identifies the number of bits of described source figure leaf length, and described By identifies the number of bits of described source picture width.
3. mobile device as claimed in claim 2 is characterized in that, the described accumulated value expression formula " xscale*2 of the length of described template picture
Nx' " expression, the described accumulated value expression formula " yscale*2 of the width of described template picture
Ny' " expression, described xscale is the ratio value of the length of the length of described source picture and described template picture, described yscale is the ratio value of the width of the width of described source picture and described template picture.
4. mobile device as claimed in claim 1, it is characterized in that, described source picture is corresponding with the length and the X-axis of described template picture, described source picture is corresponding with the wide and Y-axis of described template picture, described the 3rd computing module also is used for wherein one of selected Y-axis or X-axis, and calculating described selected axle and another last corresponding relevant position on the picture of described source, described selected axle goes up every bit and the point on another forms one-to-one relationship.
5. mobile device as claimed in claim 4, it is characterized in that, when described the 3rd computing module whenever carries out next point processing on described selected axle, the accumulated value of described selected axle is added up once, again the value after described the adding up is converted to binary digit, and binary digit is offset the accuracy figure place computing of described selected axle to the right, convert the binary digit after the skew to ten's digit.
6. the method for a mobile device change picture size is characterized in that described method comprises the steps:
Obtain the pixel data of source picture and template picture, and according to the length of the described template picture of pixel data computing of described source picture and described template picture and the accuracy figure place of width;
According to the pixel data and the described accuracy figure place of described source picture and described template picture, the accumulated value of the described template picture of computing on length and width, and described accumulated value carried out the round numbers computing;
According to the pixel data of described source picture and described template picture and the integer of described accumulated value, obtain the corresponding relation of described template picture pixel and described source picture pixel by addition and displacement computing; And
Described corresponding relation according to the pixel of the pixel of described template picture and source picture forms new picture.
7. the method for mobile device change picture size as claimed in claim 6, it is characterized in that, described accuracy figure place is to be used for identifying the length of described template picture and the metric decimal digits of width, use the accuracy figure place of the length of the described template picture of Nx ' sign, Nx ' identifies with expression formula " A-Bx ", use the accuracy figure place of the width of the described template picture of Ny ' sign, Ny ' identifies with expression formula " A-By ", described A identifies the operating system number of bits of described mobile device, described Bx identifies the number of bits of described source figure leaf length, and described By identifies the number of bits of described source picture width.
8. the method for mobile device change picture size as claimed in claim 7 is characterized in that, the described accumulated value expression formula " xscale*2 of the length of described template picture
Nx' " expression, the described accumulated value expression formula " yscale*2 of the width of described template picture
Ny' " expression; described xscale is the ratio value of the length of the length of described source picture and described template picture; described yscale is the ratio value of the width of the width of described source picture and described template picture; described source picture is corresponding with the length and the X-axis of described template picture, and described source picture is corresponding with the wide and Y-axis of described template picture.
9. the method for mobile device change picture size as claimed in claim 8 is characterized in that the step of obtaining the corresponding relation of described template picture pixel and described source picture pixel by addition and displacement computing also comprises:
Wherein one of selected Y-axis or X-axis; And
Calculate point and another corresponding relevant position on the picture of described source of described selected axle.
10. the method for mobile device as claimed in claim 9 change picture size is characterized in that, the step of corresponding relation of obtaining described template picture pixel and described source picture pixel by addition and displacement computing is further comprising the steps of:
When on described selected axle, whenever carrying out next point processing, described selected accumulated value is added up once;
Value after described the adding up is converted to binary digit;
Binary digit is offset the accuracy figure place computing of described selected axle to the right; And
Convert the binary digit after the skew to ten's digit.
11. the method for mobile device as claimed in claim 10 change picture size is characterized in that, the step of corresponding relation of obtaining described template picture pixel and described source picture pixel by addition and displacement computing is further comprising the steps of:
When calculating described selected axle and going up every bit, with described corresponding another calculate a little; And
Carry out next point processing of described selected axle.
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| EP1308887A1 (en) * | 2000-10-11 | 2003-05-07 | NuCore Technology Inc. | Image processing method and apparatus |
| CN1622133A (en) * | 2004-12-27 | 2005-06-01 | 北京中星微电子有限公司 | Image zooming method |
| CN1893706A (en) * | 2005-06-27 | 2007-01-10 | 泛泰·科力特 | Method and apparatus for processing jpeg data in mobile communication terminal |
| CN1916959A (en) * | 2006-08-29 | 2007-02-21 | 中国航天时代电子公司第七七一研究所 | Scaleable large-scale 2D convolution circuit |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1308887A1 (en) * | 2000-10-11 | 2003-05-07 | NuCore Technology Inc. | Image processing method and apparatus |
| CN1622133A (en) * | 2004-12-27 | 2005-06-01 | 北京中星微电子有限公司 | Image zooming method |
| CN1893706A (en) * | 2005-06-27 | 2007-01-10 | 泛泰·科力特 | Method and apparatus for processing jpeg data in mobile communication terminal |
| CN1916959A (en) * | 2006-08-29 | 2007-02-21 | 中国航天时代电子公司第七七一研究所 | Scaleable large-scale 2D convolution circuit |
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