CN106385550A - Method and terminal for capturing screen image - Google Patents

Abstract

The present invention discloses a method and terminal for capturing a screen image. The problems are solved that the method aiming at the capture of the whole page is complex in operation and inconvenient. According to the embodiment of the invention, after a capture operation instruction is received, the current displaying content of the screen is stored in the image mode, the terminal slides the displaying content in a setting distance until satisfying the screen capture stopping condition, and the current displaying content of the screen is stored in the image mode after each sliding; the stored image is subjected to synthetic processing. According to the embodiment of the invention, the terminal can capture the whole page with no need for performing screen capture for many times by users, the terminal can automatically complete the whole operation process and can perform synthesis process of the captured image, and therefore, the operation is simple and convenient, and the functionality of the capture screen operation is improved.

Description

A kind of method of screen printing image and terminal

Technical field

The present invention relates to technical field of image processing, particularly to a kind of method of screen printing image and terminal.

Background technology

Screenshotss technology is a kind of picture or word of intercepting to obtain a kind of computer technology wherein comprising knowledge.By this Kind of technology can intercept user's word interested from webpage, picture save for users to use, be one kind more easily Study, the method understanding knowledge.

With the extension of termination function, present mobile phone, computer, the intelligent terminal such as flat board can realize screenshotss operation, with The form of image preserves the content that current screen shows, some softwares and mobile phone application simultaneously also provides distinctive screenshots itself Combination button mode, or screenshotss triggering gesture.And in existing screenshotss scheme, user can only be for currently displaying interior of screen Hold and operated if it is desired to be preserved the not shown content of screen it is necessary to slip screen, so that screen is parked in needs the interior of preservation Rong Shang, then carry out screenshotss operation, when the content needing to preserve whole webpage, can only carry out by the way of screenshotss while in screen sliding Operation, adopts and carries out screenshotss in this way, the part of coincidence inevitably occurs so that at it in multiple images of intercepting Afterwards watch truncated picture when also result in inconvenience, and whole operation process take loaded down with trivial details.

To sum up, existing for intercept full page screenshotss method complex operation it has not been convenient to.

Content of the invention

The present invention provides a kind of method of screen printing image and terminal, cuts in order to solve to be directed to present in prior art Take the method complex operation of the screenshotss of full page it has not been convenient to problem.

The embodiment of the present invention provides a kind of method of screen printing image, and the method includes：

Terminal, after receiving screenshotss operational order, preserves the currently displaying content of screen with image format；

Described terminal slides the content showing until meeting stopping screenshotss condition with the distance setting every time, and is sliding every time After dynamic, the currently displaying content of screen is preserved with image format；

The image of preservation is carried out synthesis process by described terminal.

The embodiment of the present invention provides a kind of terminal of screen printing image, and this terminal includes：

Screen capture module, for, after receiving screenshotss operational order, preserving the currently displaying content of screen with image format；

Processing module, the content for the distance slip display to set every time stops screenshotss condition until meeting, and After sliding every time, the currently displaying content of screen is preserved with image format；

Synthesis module, for carrying out synthesis process by the image of preservation.

Embodiment of the present invention terminal after receiving screenshotss operational order, with image format preserve screen currently displaying in Hold, the content that terminal is shown with the distance slip setting every time stops screenshotss condition until meeting, and to scheme after each slip As form preserves the currently displaying content of screen；The image of preservation is carried out synthesis process, by way of the embodiment of the present invention Terminal can intercept full page it is not necessary to user carries out multiple screenshotss operation, is automatically performed whole operation process by terminal, Truncated picture synthesis is processed at last, simple to operate, convenient, improves the feature of screenshotss operation.

Brief description

For the technical scheme being illustrated more clearly that in the embodiment of the present invention, will make to required in embodiment description below Accompanying drawing briefly introduce it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this For the those of ordinary skill in field, without having to pay creative labor, it can also be obtained according to these accompanying drawings His accompanying drawing.

Fig. 1 is the schematic flow sheet of the method for embodiment of the present invention screen printing image；

Fig. 2 determines the schematic flow sheet of the method for top public domain for the present embodiment；

Fig. 3 determines the schematic flow sheet of the method for bottom public domain for the present embodiment；

The context schematic diagram that Fig. 4 shows in full page for the present embodiment two continuous frames image；

Fig. 5 a determines the schematic diagram of previous frame image in the method for overlapping region for the present embodiment；

Fig. 5 b determines the schematic diagram of a later frame image in the method for overlapping region for the present embodiment；

The context schematic diagram that Fig. 6 shows in full page for the present embodiment two continuous frames image；

Fig. 7 a determines the schematic diagram of previous frame image in the method for overlapping region for the present embodiment；

Fig. 7 b determines the schematic diagram of a later frame image in the method for overlapping region for the present embodiment；

Fig. 8 is the schematic flow sheet of the process of embodiment of the present invention screen printing image；

The schematic flow sheet that Fig. 9 synthesizes for embodiment of the present invention multiple image；

Figure 10 determines top public domain and the schematic flow sheet of bottom public domain for the embodiment of the present invention；

Figure 11 is that embodiment of the present invention pixel difference matrix rows correspond to numerical value sum curve synoptic diagram；

Figure 12 is the pixel value sum curve synoptic diagram of each row pixel of embodiment of the present invention two continuous frames image；

Figure 13 is the curve synoptic diagram of the mean difference accumulated value of embodiment of the present invention two continuous frames image；

Figure 14 is the structural representation of the terminal of embodiment of the present invention screen printing image.

Specific embodiment

In order that the object, technical solutions and advantages of the present invention are clearer, below in conjunction with accompanying drawing the present invention is made into One step ground describes in detail it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments. Based on the embodiment in the present invention, it is all that those of ordinary skill in the art are obtained under the premise of not making creative work Other embodiments, broadly fall into the scope of protection of the invention.

As shown in figure 1, the method for embodiment of the present invention screen printing image, the method includes：

Step 101：Terminal, after receiving screenshotss operational order, preserves the currently displaying content of screen with image format；

Step 102：Terminal slides the content showing until meeting stopping screenshotss condition with the distance setting every time, and every After secondary slip, the currently displaying content of screen is preserved with image format；

Step 103：The image of preservation is carried out synthesis process by terminal.

Embodiment of the present invention terminal after receiving screenshotss operational order, with image format preserve screen currently displaying in Hold, the content that terminal is shown with the distance slip setting every time stops screenshotss condition until meeting, and to scheme after each slip As form preserves the currently displaying content of screen；The image of preservation is carried out synthesis process, by way of the embodiment of the present invention Terminal can intercept full page it is not necessary to user carries out multiple screenshotss operation, is automatically performed whole operation process by terminal, Truncated picture synthesis is processed at last, simple to operate, convenient, improves the feature of screenshotss operation.

Terminal can be to provide two kinds of screenshotss modes, and one kind is that existing mode only intercepts present displayed content, and one kind is this The mode of bright embodiment；

In force, after terminal receives the instruction that user needs to carry out screenshotss, can pop-up display frame, by user select adopt Carry out screenshotss with existing mode or the mode of the embodiment of the present invention.

Wherein, terminal can trigger screenshotss operational order using various ways, and the mode for example with combination button triggers, Gesture trigger, in the page, the mode of menu option triggers, every can by trigger screenshotss operational order in the way of all be applied to this Bright embodiment.

Terminal, after determination receives screenshotss operational order, determines whether the content that current screen shows is in the display page Top or bottom, if not then automatically by the content of screen display switch to display the page top or display the page Bottom, by display page top or display the page bottom intercept；Can also be in determining that current screen shows After appearance is not at top or the bottom of current page, user is reminded to select to start the position of screenshotss.

If user selects to start the position of screenshotss, can also receive user in terminal needs to carry out the instruction of screenshotss, And user selects after carrying out screenshotss by the way of the embodiment of the present invention, then pop-up display frame, the inside have multiple screenshotss modes by User selects which kind of adopts.

Wherein, the mode of terminal control slip display content is including but not limited to situations below：

If starting to intercept from the top of the display page, now the content of screen display switches to the top of the display page Portion, described terminal control upward sliding display content；

If starting to intercept from the bottom of the display page, now the content of screen display switches to the bottom of the display page Portion, described terminal control slide downward display content；

If only intercepting present displayed content to the content at the top showing the page, now described terminal control is to downslide Dynamic display content, or the content of screen display switches to the top of the display page, and described terminal control upward sliding show interior Hold；

If only intercepting the content of the bottom to the display page for the present displayed content, now described terminal control slides up Dynamic display content, or the content of screen display switches to the bottom of the display page, and described terminal control slide downward show interior Hold.

In step 102, the distance slip display content to set for the terminal.

Wherein, the distance setting determines as the size of the performance according to terminal and screen display content, such as can select The a quarter selecting screen display content length is setpoint distance, or can select 1/2nd of screen display content length be Setpoint distance.

Optionally, due to terminal, there is certain time delay to specified location in slip display content every time, so the present invention is real Apply example and one delay time can be set.

After described terminal is every time with the content of the distance slip display setting, described terminal is after certain delay time The currently displaying content of screen is preserved with image format；

Delay time be the implementation of application in performance and terminal according to terminal determining, for example, it is possible to root The process time slided according to the distance that terminal instructs control screen display content to set from the screenshotss receiving user and In terminal, the mode after the screenshotss operation of receive user, screen sliding being processed of applying of browsing pages to determine delay time.

It should be noted that above-mentioned process time and application are to performance and the end that the mode of the process of screen sliding is only terminal The illustration of the implementation of application in end, wherein every mode that can determine delay time is all applied to the present invention and implements Example.

In force, terminal preserves the currently displaying content of screen with image format after certain delay time and can protect Time required for card terminal processes slip screen, namely it is current to screen to ensure that terminal just starts after sliding into specified location The content of display is preserved.

Optionally, with the stopping screenshotss condition of the embodiment of the present invention including but not limited to the part in following condition or complete Portion：

Condition one, the picture number preserving reach maximum intercepting picture number.

Wherein, maximum intercept the storage capacity that picture number is ability according to terminal processes image and terminal and determine.Example As terminal can be according to processor in terminal in the speed of screen printing image and maximum process picture number, and terminal The picture number that can preserve determines maximum intercepting picture number.Terminal is required to after preserving the content that current screen shows every time Judging, whether the picture number that accumulation preserves reaches maximum intercepting picture number, such as not up to, then continuing to intercept image, if reached Arrive, then all images of preservation are carried out synthesis process.

Here accumulate preservation picture number receive a screenshotss operational order after start count.Connect again in next time Statistics can be re-started after receiving a screenshotss operational order.

Condition two, current truncated picture are identical with last truncated picture；

Current truncated picture and the last truncated picture identical explanation distance slip display content to set for the terminal, Now slide at the rearmost position specified, namely slided into bottommost or the top of the page, terminal is sliding into When the bottommost of the page or top, terminal intercept present displayed content, when again with set distance slip display content when, Due to having arrived at page bottommost and top it is impossible to carry out the slip of respective distance, current display content can only stop In bottommost or the top of the page, the display content that now terminal intercepts can only be identical with last truncated picture, institute With current truncated picture with once truncated picture identical when stop screenshotss operation.

Wherein, described terminal can judge in the following way current truncated picture whether with last truncated picture Identical：

Described terminal determines that the current image that intercepts intercepts the corresponding picture element matrix of image with last；

Wherein, the current image that intercepts is converted into corresponding gray level image with the last image that intercepts by described terminal, according to Gray level image determine determine current intercept image and on once intercept the corresponding picture element matrix of image, each in picture element matrix The value of element is the gray value of image in corresponding pixel points for the image.

Described terminal passes through current intercepting image and the last time intercepts current section of the difference determination of the corresponding picture element matrix of image Take image and last intercepting image corresponding pixel difference matrix；

Each element in pixel difference matrix is carried out summation and is currently intercepted image and last intercepting figure by place terminal The difference value of picture；

Described terminal determines the current magnitude relationship intercepting image and the last difference value intercepting image and discrepancy threshold；

If currently intercepting image and the last difference value intercepting image being not more than discrepancy threshold, illustrate currently to intercept image With the last time intercepts the difference very little between image, then currently intercepting image is identical with the last image that intercepts, and terminal deletion ought Front intercepting image, and the image preserving before is carried out synthesis process；

If currently intercepting image and the last difference value intercepting image is more than discrepancy threshold, illustrate currently to intercept image with Differing greatly between last intercepting image, then currently intercepting image is different with the last image that intercepts, and terminal continues to set The content of fixed distance slip display.

Optionally, because, in the operation of whole screenshotss, every frame truncated picture contains the public domain at top, and bottom is public Region, and the intersection with front and back two frame truncated picture altogether, if directly truncated picture is synthesized a two field picture, There is the part of more repetition, data content repeats too much, and discontinuously, so also needing to remove the top public area of repetition Domain, bottom public domain and overlapping region.

Specifically, when the image of preservation is carried out synthesis process by described terminal, described terminal determines the every frame figure preserving The top public domain of picture, bottom public domain and overlapping region；

Described terminal retains the top public domain of the first two field picture and the bottom public domain of last frame image, by it Top public domain in the multiple image of remaining preservation and bottom public domain remove, and retain overlapping region identical figure The overlapping region of a two field picture in picture, deletes the overlapping region of other two field pictures in the identical image of overlapping region；

Multiple image synthesis after described terminal will be processed is processed into a two field picture.

Wherein, described terminal is determined as follows the top public domain of every two field picture of preservation：

Described terminal chooses any two field pictures from the image preserving, by corresponding for any two field pictures picture element matrix Difference is as the first pixel difference matrix of described any two field pictures；

Described terminal is compared according to described first pixel difference matrix and first threshold, if the first pixel difference matrix Front A row in every line number value sum be less than first threshold, and A+1 line number value sum is not less than first threshold from top to bottom, then Using the region of the front A row pixel composition in every two field picture as top public domain, wherein A is positive integer.

In the front A row of the first pixel difference matrix, every line number value sum is less than first threshold, and A before any two field pictures is described The differentiation in different regions of row is less；

A+1 line number value sum is not less than first threshold from top to bottom, illustrates that any two field pictures A+1 row exists larger Difference.

On the basis of in the front A row judge the first pixel difference matrix, every line number value sum is less than first threshold, determine A+1 line number value sum is not less than first threshold, and before any two field pictures are described, the region of A row is identical, belongs to top public Region altogether, and the region of A+1 row is not belonging to top public domain, is not belonging to top public domain by the region of A+1 row, enters And may determine that the region after A+1 row is also not belonging to top public domain, thereby determine that out that top public domain is image In front A row composition region.

Wherein, first threshold is a less numerical value, is the mark being directed to top area each row difference in phenogram picture Quasi- value, the mode according to terminal display image and an empirical value determined by emulation.

As shown in Figure 2 ten row pixels, and the area that before truncated picture, 2 row pixels form are included with truncated picture As a example domain is top public domain, introduce the method determining top public domain；

Described terminal chooses any two field pictures from the image preserving；

Described terminal determines the corresponding two picture element matrix P of any two field pictures₁And P₂；

Two picture element matrixs are done difference and are calculated corresponding pixel difference matrix P=P by described terminal₁-P₂；

Wherein, on pixel difference matrix each element corresponding be the pixel value of corresponding pixel points in two images difference Value；

Described terminal starts to calculate each line number value sum it is assumed that pixel difference matrix from the first row of pixel difference matrix First numerical value of a line is P (1,1), and second numerical value of the first row is P (2,1), and the 3rd numerical value of the first row is P (3,1), first The 4th numerical value of row is P (4,1), and the 5th numerical value of the first row is P (5,1)；

For example, the computing formula for P (1) for pixel difference matrix the 1st line number value sum is as follows：P (1)=P (1,1)+P (2, 1)+P (3,1)+P (4,1)+P (5,1)；

Pixel difference matrix the 2nd line number value sum is that the computing formula of P (2) is as follows：P (2)=P (1,2)+P (2,2)+P (3,2)+P (4,2)+P (5,2)；

Pixel difference matrix the 3rd line number value sum is that the computing formula of P (3) is as follows：P (3)=P (1,3)+P (2,3)+P (3,3)+P (4,3)+P (5,3)；

Described terminal is determining being compared after first threshold of P (1), because the front two row of two images is corresponding Region is top public domain, therefore on the corresponding picture element matrix of two images, the numerical value of front two row is close, after doing difference, corresponding picture Numerical value on plain difference matrix be one close to zero value, and on picture element matrix, this line number value sum corresponding is also one and connects It is bordering on zero value, therefore P (1) is necessarily less than first threshold；

After described terminal determines that P (1) is less than first threshold, terminal is determined P (2) and is compared with first threshold, with Reason P (2) is less than first threshold；

After described terminal determines that P (2) is less than first threshold, terminal is determined P (3) and is compared with first threshold, by It is not belonging to top public domain in the third line region, therefore on the corresponding picture element matrix of two images, the numerical value of front two row is not close, After doing difference, the numerical value on respective pixel difference matrix be not one close to zero value, and this row corresponding on picture element matrix Numerical value sum is kept off in zero, therefore P (3) is necessarily not less than first threshold；

When described terminal is after determining that P (3) is not less than first threshold, then by 2 row pixels compositions before in every two field picture Region is as top public domain.

In Practical Calculation, in order to ensure result accurate in, described terminal can be determined top to multiple series of images The operation of public domain.

Wherein, described terminal is determined as follows the bottom public domain in every two field picture of preservation：

Described terminal chooses any two field pictures from the image preserving, by corresponding for any two field pictures picture element matrix Difference is as the second pixel difference matrix of described any two field pictures；

Described terminal is compared according to described second pixel difference matrix and Second Threshold, if the second pixel difference matrix Rear B row in every line number value sum be less than Second Threshold, illustrate that the differentiation in different regions of B row after any two field pictures is less, and under It is not less than Second Threshold to upper B+1 line number value sum, illustrate that the region of any two field pictures B+1 row has larger difference Not, it is different regions, then using the region of the front B row pixel composition in every two field picture as bottom public domain, wherein B is just Integer.

In the front B row of the second pixel difference matrix, every line number value sum is less than Second Threshold, and B before any two field pictures is described The differentiation in different regions of row is less；

B+1 line number value sum is not less than Second Threshold from top to bottom, illustrates that any two field pictures B+1 row exists larger Difference.

On the basis of in the rear B row judge the second pixel difference matrix, every line number value sum is less than Second Threshold, determine B+1 line number value sum is not less than first threshold from top to bottom, and after any two field pictures are described, the region of B row is identical, belongs to In bottom public domain, and the region of B+1 row is not belonging to bottom public domain, is not belonging to bottom by the region of B+1 row public Region altogether, and then may determine that the region after B+1 row is also not belonging to bottom public domain, thereby determine that out bottom public area Domain is the region of front B row composition in image.

Wherein, Second Threshold is a less numerical value, is the standard value of bottom section each row difference in phenogram picture, is Mode according to terminal display image and an empirical value determined by emulation.

As shown in Figure 3 ten row pixels, and the area that after truncated picture, 2 row pixels form are included with truncated picture As a example domain is bottom public domain, introduce the method determining bottom public domain；

Described terminal chooses any two field pictures from the image preserving；

Described terminal determines the corresponding two picture element matrix Q of any two field pictures₁And Q₂；

Two picture element matrixs are done difference and are calculated corresponding pixel difference matrix Q=Q by described terminal₁-Q₂；

Wherein, on pixel difference matrix each element corresponding be the pixel value of corresponding pixel points in two images difference Value；

Described terminal starts to calculate each line number value sum it is assumed that pixel difference matrix from last column of pixel difference matrix Tenth row first numerical value be Q (1,10), the tenth row second numerical value be Q (2,10), the tenth row the 3rd numerical value be Q (3, 10), the 4th numerical value of the tenth row is Q (4,10), and the tenth row the 5th numerical value is Q (5,10)；

For example, the computing formula for Q (10) for pixel difference matrix the 10th line number value sum is as follows：Q (1)=Q (1,10)+Q (2,10)+Q (3,10)+Q (4,10)+Q (5,10)；

Pixel difference matrix the 9th line number value sum is that the computing formula of Q (9) is as follows：Q (2)=Q (1,9)+Q (2,9)+Q (3,9)+Q (4,9)+Q (5,9)；

Pixel difference matrix eighth row numerical value sum is that the computing formula of Q (8) is as follows：Q (8)=Q (1,8)+Q (2,8)+Q (3,8)+Q (4,8)+Q (5,8)；

Described terminal is determining being compared after Second Threshold of Q (10), and rear two row due to two images correspond to Region be bottom public domain, therefore on the corresponding picture element matrix of two images after two row numerical value close, after doing difference, corresponding Numerical value on pixel difference matrix be one close to zero value, and on picture element matrix, this line number value sum corresponding is also one Close to zero value, therefore Q (10) is necessarily less than Second Threshold；

After described terminal determines that Q (10) is less than Second Threshold, terminal is determined Q (9) and is compared with Second Threshold, with Reason Q (9) is less than Second Threshold；

After described terminal determines that Q (9) is less than Second Threshold, terminal is determined Q (8) and is compared with Second Threshold, by Be not belonging to bottom public domain in countdown line 3 region, thus on the corresponding picture element matrix of two images front two row numerical value not phase Closely, after doing difference, the numerical value on respective pixel difference matrix be not one close to zero value, and on picture element matrix corresponding should Line number value sum is kept off in zero, therefore Q (8) is necessarily not less than Second Threshold；

When described terminal is after determining that Q (8) is not less than Second Threshold, then by the rear 2 row pixel compositions in every two field picture Region is as bottom public domain.

In Practical Calculation, in order to ensure result accurate in, described terminal can be determined bottom to multiple series of images The operation of public domain.

As shown in figure 4, the context schematic diagram that two continuous frames image shows in full page, described terminal every time with The content showing apart from upward sliding setting, because new display content occurs from bottom of screen, so described terminal needs Determine the overlapping region between subregion on subregion and a later frame image under previous frame image；

Described terminal is determined as follows the overlapping region of every two field picture：

To adjacent two field pictures, by M row pixel before the region of M row pixel composition after previous frame image and a later frame image The region of composition is as overlapping region；

Wherein, after previous frame image before M row pixel and a later frame image M row pixel mean difference accumulated value, less than front The mean difference accumulated value of M+N row pixel before M+N row pixel and a later frame image after one two field picture, M is positive integer, and N is Zero integer, and M+N is more than the maximum number of lines for image for the maximum of zero, M+N；

Namely described terminal it needs to be determined that before M row pixel and a later frame image after going out previous frame image M row pixel average The minimum of a value of difference accumulated value, when mean difference accumulated value is minimum, the area of M row pixel composition after its corresponding previous frame image Before domain and a later frame image, the region of M row pixel composition is overlapping region.

Taking in image, comprise ten row pixels as a example, determine respectively 1 before 1 row pixel and a later frame image after previous frame image The mean difference accumulated value of row pixel, the mean difference accumulation of 2 row pixels before 2 row pixels and a later frame image after previous frame image Value, until, before 10 row pixels and a later frame image after previous frame image, the mean difference accumulated value of 10 row pixels, such as determines it Before 3 row pixels and a later frame image after middle previous frame image, the mean difference accumulated value of 3 row pixels is minimum of a value, then former frame figure Before the region forming as rear 3 row pixels and a later frame image, the region of 3 row pixels compositions is overlapping region.

It should be noted that before M row pixel and a later frame image after previous frame image M row pixel mean difference accumulated value When being zero, can directly determine the area of M row pixel composition before the region of M row pixel composition and a later frame image after previous frame image Domain is overlapping region；If not having mean difference accumulated value to be zero, need to calculate always all row of previous frame image and after The mean difference accumulated value of all row of one two field picture, and determine the minimum of a value of wherein mean difference accumulated value.

Wherein, described terminal determines mean difference accumulated value according to following manner：

Described terminal determine in the picture element matrix of previous frame image after the value preset of Z row each row pixel value and a later frame image pair The difference of each row pixel value sum of front Z row in the picture element matrix answered；

Wherein, in picture element matrix, the computing formula of each row pixel value sum is as follows：

$F_i\left(h\right)=\underset{w=1}{\overset{w}{\Σ}}{A}_i(w,h),F_{i+1}\left(h\right)=\underset{w=1}{\overset{w}{\Σ}}{A}_{i+1}(w,h);$

Wherein, w represents the horizontal pixel width of image, F_iH () represents the pixel value that previous frame image line number is this row during h Sum, A_i(w, h) represents that in previous frame image, pixel point coordinates is the pixel value at (w, h) place, F_i+1H () represents a later frame image Line number is the pixel value sum of this row during h, A_i+1(w, h) represents that in a later frame image, pixel point coordinates is the pixel at (w, h) place Value.

Described terminal is using Z row picture before the ratio of described difference and Z Z row pixel and a later frame image as after previous frame image The mean difference accumulated value of element；

Wherein, the computing formula of mean difference accumulated value is as follows：

$L\left(Z\right)=\frac{\underset{k}{\overset{Z}{\Σ}}{F}_i(H-k)-F_{i+1}(Z-k)}{Z};$

Wherein, H is the maximum of picturedeep, and L (Z) represents Z row before Z row pixel and a later frame image after previous frame image The mean difference accumulated value of pixel, F_i(H-k) previous frame image this row pixel value sum in H-k row, F are represented_i+1(Z-k) Represent a later frame image this row pixel value sum in Z-k row, the summation part in above-mentioned formula is to start to sue for peace from k value, k Can select to start to change from 0 to select a value less than Z from a non-zero to start to change, general previous frame image is Afterwards the region of several row and a later frame image start most several row differentiation in different regions less, be relatively also easy to produce previous frame image last rows Region and a later frame image start the mean difference accumulated value feelings also less than the average difference values of real intersection of several row most Condition, in order to avoid the transmission of this situation, can make k start to change from a less numerical value of non-zero.

Wherein, Z is positive integer, and the maximum of Z is the maximum number of lines of image.

It should be noted that described terminal determines each row pixel value according to following manner：

For any a line, described terminal is using the brightness value sum of each pixel of this row in image as this row pixel value； Or

Described terminal is by the product of corresponding with pixel position for the brightness value of each pixel of this row in image default weight Sum is as this row pixel value.

Wherein, the corresponding default weighted value in pixel position can select linear ascending weights it is also possible to select waveform to become Change weight, the position in this row is related to pixel due to weighted value, so the mean pixel difference being calculated using weighted value Accumulated value more can reflect the difference of two field pictures；

When the content that two continuous frames image shows is that position there occurs change, this two field pictures is two different frame figures Picture, using the mean pixel difference accumulated value that the brightness value of pixel calculates for the different viewing area of content same position be Thereby increases and it is possible to be minimum of a value, can there is certain deviation using this region as overlapping region in described terminal to one value of very little.

Ten row pixels are included with previous frame image and a later frame image shown in Fig. 5 a and Fig. 5 b, and previous frame image The region and a later frame image first three rows pixel composition of rear three row pixels compositions region be overlapping region as a example, introduce The method determining overlapping region；

As shown in Figure 5 a, determine the schematic diagram of previous frame image in the method for overlapping region, wherein comprise ten row pixels, Often row has 5 pixels it is assumed that the pixel value sum of the 1st row pixel is F₁(1), the pixel value sum of the 2nd row pixel is F₁ (2), by that analogy, the pixel value sum of the corresponding pixel of the 10th row is F₁(10)；Determine overlapping region as shown in Figure 5 b The schematic diagram of a later frame image in method, wherein comprises ten row pixels, and often row has 5 pixels to assume the 1st row pixel Pixel value sum is F₂(1), the pixel value sum of the 2nd row pixel is F₂(2), by that analogy, the 10th row corresponding pixel Pixel value sum is F₂(10)；

With F₁(1) computational methods of pixel value sum are simply introduced as a example：

Method one, the brightness value using each pixel of previous frame image calculates；Assume previous frame image the first row first The corresponding brightness value of pixel is A₁(1,1), the corresponding brightness value of the first row second pixel point is A₂(2,1), the first row the 3rd The corresponding brightness value of individual pixel is A₂(3,1), the 4th corresponding brightness value of pixel of the first row is A₂(4,1), the first row The corresponding brightness value of four pixels is A₂(5,1)；

Then the pixel value sum of the 1st row pixel is F₁(1) computing formula is as follows：F₁(1)=A₁(1,1)+A₁(2,1)+ A₁(3,1)+A₁(4,1)+A₁(5,1)；

Method two, using the brightness value of each pixel of previous frame image and the weight calculation of pixel；Assume former frame figure As the corresponding brightness value of first pixel of the first row is A₁(1,1), corresponding weight is w₁, the first row second pixel point pair The brightness value answered is A₂(2,1), corresponding weight is w₂, the 3rd corresponding brightness value of pixel of the first row is A₂(3,1), right The weight answered is w₃, the 4th corresponding brightness value of pixel of the first row is A₂(4,1), corresponding weight is w₄, the first row the 4th The corresponding brightness value of individual pixel is A₂(5,1), corresponding weight is w₅；

Then the pixel value sum of the 1st row pixel is F₁(1) computing formula is as follows：F₁(1)=A₁(1,1) × w₁+A₁(2, 1)×w₂+A₁(3,1) × w₃+A₁(4,1) × w₄+A₁(5,1) × w₅；

It should be noted that the corresponding weighted value of each pixel to this position in pixel column related with pixel institute Unrelated in the frame number of image, identical pixel corresponding weight in pixel position is identical in each row, such as former frame The weight of the 2nd pixel of image the first row is identical with the weight of the 2nd pixel of a later frame image the third line.

Described terminal can calculate mean pixel difference in the following way：

Mean difference accumulated value L (1) of 1 row pixel before 1 row pixel and a later frame image after mode one, previous frame image= F₁(10)-F₂(1)；

Mean difference accumulated value L (2) of 2 row pixels before 2 row pixels and a later frame image after previous frame image

$L\left(2\right)=\frac{F_1\left(9\right)+F_1\left(10\right)-\[F_2\left(1\right)+F_2\left(2\right)\]}{2};$

Mean difference accumulated value L (3) of 3 row pixels before 3 row pixels and a later frame image after previous frame image

$L\left(3\right)=\frac{F_1\left(8\right)+F_1\left(9\right)+F_1\left(10\right)-\[F_2\left(1\right)+F_2\left(2\right)+F_2\left(3\right)\]}{3};$

Mean difference accumulated value L (4) of 4 row pixels before 4 row pixels and a later frame image after previous frame image

$L\left(4\right)=\frac{F_1\left(7\right)+F_1\left(8\right)+F_1\left(9\right)+F_1\left(10\right)-\[F_2\left(1\right)+F_2\left(2\right)+F_2\left(3\right)+F_2\left(4\right)\]}{4};$

By that analogy,

Mean difference accumulated value L (10) of 4 row pixels before 4 row pixels and a later frame image after previous frame image

$L\left(10\right)=\frac{F_1\left(1\right)+F_1\left(2\right)+...+F_1\left(10\right)-\[F_2\left(1\right)+F_2\left(2\right)+...+F_2\left(10\right)\]}{4};$

Mean difference accumulated value L (1) of 1 row pixel before 1 row pixel and a later frame image after mode two, previous frame image= F₁(10)-F₂(1)；

Mean difference accumulated value L (2) of 2 row pixels before 2 row pixels and a later frame image after previous frame image

$L\left(2\right)=\frac{F_1\left(10\right)-F_2\left(2\right)+\[F_1\left(9\right)-F_2\left(1\right)\]}{2};$

Mean difference accumulated value L (3) of 3 row pixels before 3 row pixels and a later frame image after previous frame image

$L\left(3\right)=\frac{F_1\left(10\right)-F_2\left(3\right)+\[F_1\left(9\right)-F_2\left(2\right)\]+\[F_1\left(8\right)-F_2\left(1\right)\]}{3};$

Mean difference accumulated value L (4) of 4 row pixels before 4 row pixels and a later frame image after previous frame image

$L\left(4\right)=\frac{F_1\left(10\right)-F_2\left(4\right)+\[F_1\left(9\right)-F_2\left(3\right)\]+\[F_1\left(8\right)-F_2\left(2\right)\]+\[F_1\left(7\right)-F_2\left(1\right)\]}{4};$

By that analogy,

Mean difference accumulated value L (10) of 10 row pixels before 10 row pixels and a later frame image after previous frame image

$L\left(10\right)=\frac{F_1\left(10\right)-F_2\left(10\right)+\[F_1\left(9\right)-F_2\left(9\right)\]+\[F_1\left(8\right)-F_2\left(8\right)\]+...+\[F_1\left(1\right)-F_2\left(1\right)\]}{10};$

After calculating there emerged a the corresponding mean difference accumulated value of row, determine that L (1) minimum of a value Dao L (10) in is L (3) then table The region that the region of the rear three row pixel compositions of bright previous frame image is formed with a later frame image first three rows pixel is to overlap Region.

As shown in fig. 6, in the context schematic diagram that shows in full page of two continuous frames image, described terminal is each With the content showing apart from slide downward setting, because new display content occurs from the top of screen, so described terminal needs Overlapping region between subregion under subregion and a later frame image on previous frame image to be determined；

Described terminal determines the overlapping region of every two field picture, including：

To adjacent two field pictures, by X row pixel groups after the region of X row pixel composition before former frame figure and a later frame image The region becoming is as overlapping region；

Wherein, before previous frame image after X row pixel and a later frame image Y row pixel mean difference accumulated value, less than front The mean difference accumulated value of X+Y row pixel after X+Y row pixel and a later frame image before one two field picture, X is positive integer, and Y is Zero integer, and X+Y is more than the maximum number of lines for image for the maximum of zero, X+Y；

Namely described terminal it needs to be determined that after X row pixel and a later frame image before going out previous frame image X row pixel average The minimum of a value of difference accumulated value, when mean difference accumulated value is minimum, the area of X row pixel composition before its corresponding previous frame image Behind domain and a later frame image, the region of X row pixel composition is overlapping region.

Taking in image, comprise ten row pixels as a example, determine respectively 1 after 1 row pixel and a later frame image before previous frame image The mean difference accumulated value of row pixel, the mean difference accumulation of 2 row pixels after 2 row pixels and a later frame image before previous frame image Value, until, after 10 row pixels and a later frame image before previous frame image, the mean difference accumulated value of 10 row pixels, such as determines it After 3 row pixels and a later frame image before middle previous frame image, the mean difference accumulated value of 3 row pixels is minimum of a value, then former frame figure Behind the region forming as front 3 row pixels and a later frame image, the region of 3 row pixels compositions is overlapping region.

It should be noted that after X row pixel and a later frame image before previous frame image X row pixel mean difference accumulated value When being zero, can directly determine the area of X row pixel composition behind the region of X row pixel composition and a later frame image before previous frame image Domain is overlapping region；If not having mean difference accumulated value to be zero, need to calculate always all row of previous frame image and after The mean difference accumulated value of all row of one two field picture, and determine the minimum of a value of wherein mean difference accumulated value；

Wherein, described terminal determines mean difference accumulated value according to following manner：

Described terminal determines that in the picture element matrix of previous frame image, each row pixel value sum of front S row is corresponding with a later frame image Picture element matrix in after S row each row pixel value sum difference；

Wherein, in picture element matrix, the computing formula of each row pixel value sum is as follows：

$F_i\left(h\right)=\underset{w=1}{\overset{w}{\Σ}}{A}_i(w,h),F_{i+1}\left(h\right)=\underset{w=1}{\overset{w}{\Σ}}{A}_{i+1}(w,h);$

Wherein, w represents the horizontal pixel width of image, F_iH () represents the pixel value that previous frame image line number is this row during h Sum, A_i(w, h) represents that in previous frame image, pixel point coordinates is the pixel value at (w, h) place, F_i+1H () represents a later frame image Line number is the pixel value sum of this row during h, A_i+1(w, h) represents that in a later frame image, pixel point coordinates is the pixel at (w, h) place Value.

Described terminal is using S row picture after the ratio of described difference and S S row pixel and a later frame image as before previous frame image The mean difference accumulated value of element；

Wherein, the computing formula of mean difference accumulated value is as follows：

$L\left(S\right)=\frac{\underset{k}{\overset{S}{\Σ}}{F}_i(S-k)-F_{i+1}(H-k)}{S};$

Wherein, H is the maximum of picturedeep, and L (S) represents S row after S row pixel and a later frame image before previous frame image The mean difference accumulated value of pixel, F_i(S-k) previous frame image this row pixel value sum in S-k row, F are represented_i+1(H-k) Represent a later frame image this row pixel value sum in H-k row, the summation part in above-mentioned formula is to start to sue for peace from k value, k Can select to start to change from 0 to select a value less than S from a non-zero to start to change, general previous frame image is Start the region of several row and the differentiation in different regions of a later frame image last rows is less, be relatively also easy to produce previous frame image and start several row most Region and a later frame image last rows mean difference accumulated value feelings also less than the average difference values of real intersection Condition, in order to avoid the transmission of this situation, can make k start to change from a less numerical value of non-zero.

Wherein, S is positive integer, and the maximum of S is the maximum number of lines of image.

It should be noted that described terminal determines each row pixel value according to following manner：

For any a line, described terminal is using the brightness value sum of each pixel of this row in image as this row pixel value； Or

Described terminal is by the product of corresponding with pixel position for the brightness value of each pixel of this row in image default weight Sum is as this row pixel value.

Wherein, the corresponding default weighted value in pixel position can select linear ascending weights it is also possible to select waveform to become Change weight, the position in this row is related to pixel due to weighted value, so the mean pixel difference being calculated using weighted value Accumulated value more can reflect the difference of two field pictures；

When the content that two continuous frames image shows is that position there occurs change, this two field pictures is two different frame figures Picture, using the mean pixel difference accumulated value that the brightness value of pixel calculates for the different viewing area of content same position be Thereby increases and it is possible to be minimum of a value, can there is certain deviation using this region as overlapping region in described terminal to one value of very little.

Ten row pixels are included with previous frame image and a later frame image shown in Fig. 7 a and Fig. 7 b, and previous frame image Region and a later frame image of first three rows pixel composition after the region of three row pixels compositions be overlapping region, introduce and determine The method of overlapping region；

As shown in Figure 7a, determine the schematic diagram of previous frame image in the method for overlapping region, wherein comprise ten row pixels, Often row has 5 pixels it is assumed that the pixel value sum of the 1st row pixel is F₁(1), the pixel value sum of the 2nd row pixel is F₁ (2), by that analogy, the pixel value sum of the corresponding pixel of the 10th row is F₁(10).

As shown in Figure 7b, determine the schematic diagram of a later frame image in the method for overlapping region, wherein comprise ten row pixels, Often row has 5 pixels to assume that the pixel value sum of the 1st row pixel is F₂(1), the pixel value sum of the 2nd row pixel is F₂ (2), by that analogy, the pixel value sum of the corresponding pixel of the 10th row is F₂(10)；

With F₁(1) computational methods of pixel value sum are simply introduced as a example：

Method one, the brightness value using each pixel of previous frame image calculates；Assume previous frame image the first row first The corresponding brightness value of pixel is A₁(1,1), the corresponding brightness value of the first row second pixel point is A₂(2,1), the first row the 3rd The corresponding brightness value of individual pixel is A₂(3,1), the 4th corresponding brightness value of pixel of the first row is A₂(4,1), the first row The corresponding brightness value of four pixels is A₂(5,1)；

Then the pixel value sum of the 1st row pixel is F₁(1) computing formula is as follows：F₁(1)=A₁(1,1)+A₁(2,1)+ A₁(3,1)+A₁(4,1)+A₁(5,1)；

Method one, using the brightness value of each pixel of previous frame image and the weight calculation of pixel；Assume former frame figure As the corresponding brightness value of first pixel of the first row is A₁(1,1), corresponding weight is w₁, the first row second pixel point pair The brightness value answered is A₂(2,1), corresponding weight is w₂, the 3rd corresponding brightness value of pixel of the first row is A₂(3,1), right The weight answered is w₃, the 4th corresponding brightness value of pixel of the first row is A₂(4,1), corresponding weight is w₄, the first row the 4th The corresponding brightness value of individual pixel is A₂(5,1), corresponding weight is w₅；

Then the pixel value sum of the 1st row pixel is F₁(1) computing formula is as follows：F₁(1)=A₁(1,1) × w₁+A₁(2, 1)×w₂+A₁(3,1) × w₃+A₁(4,1) × w₄+A₁(5,1) × w₅；

It should be noted that the corresponding weighted value of each pixel to this position in pixel column related with pixel institute Unrelated in the frame number of image, identical pixel corresponding weight in pixel position is identical in each row, such as former frame The weight of the 2nd pixel of image the first row is identical with the weight of the 2nd pixel of a later frame image the third line.

Described terminal can calculate mean pixel difference in the following way：

Mean difference accumulated value L (1) of 1 row pixel after 1 row pixel and a later frame image before mode two, previous frame image= F₁(1)-F₂(10)；

Mean difference accumulated value L (2) of 2 row pixels after 2 row pixels and a later frame image before previous frame image

$L\left(2\right)=\frac{F_1\left(1\right)+F_1\left(2\right)-\[F_2\left(9\right)+F_2\left(10\right)\]}{2};$

Mean difference accumulated value L (3) of 3 row pixels after 3 row pixels and a later frame image before previous frame image

$L\left(3\right)=\frac{F_1\left(1\right)+F_1\left(2\right)+F_1\left(3\right)-\[F_2\left(8\right)+F_2\left(9\right)+F_2\left(10\right)\]}{3};$

Mean difference accumulated value L (4) of 4 row pixels after 4 row pixels and a later frame image before previous frame image

$L\left(4\right)=\frac{F_1\left(1\right)+F_1\left(2\right)+F_1\left(3\right)+F_1\left(4\right)-\[F_2\left(7\right)+F_2\left(8\right)+F_2\left(9\right)+F_2\left(10\right)\]}{4};$

By that analogy,

Mean difference accumulated value L (10) of 10 row pixels after 10 row pixels and a later frame image before previous frame image

$L\left(10\right)=\frac{F_1\left(1\right)+F_1\left(2\right)+...+F_1\left(10\right)-\[F_2\left(1\right)+F_2\left(2\right)+...+F_2\left(10\right)\]}{4};$

Mean difference accumulated value L (1) of 1 row pixel after 1 row pixel and a later frame image before mode two, previous frame image= F₁(1)-F₂(10)；

Mean difference accumulated value L (2) of 2 row pixels after 2 row pixels and a later frame image before previous frame image

$L\left(2\right)=\frac{F_1\left(2\right)-F_2\left(10\right)+\[F_1\left(1\right)-F_2\left(9\right)\]}{2};$

Mean difference accumulated value L (3) of 3 row pixels before 3 row pixels and a later frame image after previous frame image

$L\left(3\right)=\frac{F_1\left(3\right)-F_2\left(10\right)+\[F_1\left(2\right)-F_2\left(9\right)\]+\[F_1\left(1\right)-F_2\left(8\right)\]}{3};$

Mean difference accumulated value L (4) of 4 row pixels before 4 row pixels and a later frame image after previous frame image

$L\left(4\right)=\frac{F_1\left(4\right)-F_2\left(10\right)+\[F_1\left(3\right)-F_2\left(9\right)\]+\[F_1\left(2\right)-F_2\left(8\right)\]+\[F_1\left(1\right)-F_2\left(7\right)\]}{4};$

By that analogy,

Mean difference accumulated value L (10) of 10 row pixels before 10 row pixels and a later frame image after previous frame image

$L\left(10\right)=\frac{F_1\left(10\right)-F_2\left(10\right)+\[F_1\left(9\right)-F_2\left(9\right)\]+\[F_1\left(8\right)-F_2\left(8\right)\]+...+\[F_1\left(1\right)-F_2\left(1\right)\]}{10};$

After calculating there emerged a the corresponding mean difference accumulated value of row, determine that L (1) minimum of a value Dao L (10) in is L (8) then table The region of first three rows pixel composition of bright previous frame image is to overlap with the region of three row pixel compositions after a later frame image Region.

As shown in figure 8, the schematic flow sheet of the process of embodiment of the present invention screen printing image, the method includes：

Step 801：Terminal receives screenshotss operational order；

Step 802：Terminal preserves the currently displaying content of screen with image format；

Step 803：The content that terminal is shown with the distance slip setting every time, preserves screen with image format after slip and works as The content of front display；

Step 804：Terminal judges currently preserve whether number of image frames reaches maximum intercepting picture number, in this way, then execute step Rapid 807, otherwise execution step 805；

Step 805：Whether the current truncated picture of terminal judges is identical with last truncated picture, then executes step in this way Rapid 807, otherwise execution step 803；

Step 806：Terminal deletion currently intercepts image；

Step 807：Terminal determines the top public domain of every two field picture, the bottom public domain preserving；

Step 808；Terminal retains the top public domain of the first two field picture and the bottom public domain of last frame image, Top public domain in the multiple image that preserve remaining and bottom public domain remove；

Step 809：Terminal determines the overlapping region of the every two field picture preserving；

Step 810：Terminal retains the overlapping region of a two field picture in the identical image of overlapping region, deletes overlapping region phase The overlapping region of other two field pictures in same image；

Step 811：Multiple image after processing is processed a two field picture by terminal.

As shown in figure 9, the schematic flow sheet that multiple image is synthesized by the embodiment of the present invention；

Step 901：Terminal determines the top public domain of every two field picture, the bottom public domain preserving；

Step 902：Top public domain in the multiple image that terminal will preserve and bottom public domain remove；

Step 903：It is current frame image that terminal chooses the first two field picture intercepting；

Step 904：Terminal determines the overlapping region of present frame and next two field picture；

Step 905：Next two field picture eliminating overlapping region is synthesized by terminal with current frame image；

Step 906：Whether terminal judges also have next two field picture, in this way, then execution step 907, otherwise execution step 908；

Step 907：Terminal elects next two field picture as current frame image；

Step 908：The image of synthesis is synthesized and exports with the top public domain determining and bottom public domain by terminal.

As shown in Figure 10, when first threshold is identical with Second Threshold, the embodiment of the present invention determines top public domain and bottom The schematic flow sheet of portion public domain,

Step 1001：Terminal determines that the current image that intercepts intercepts the corresponding picture element matrix of image with last；

Step 1002：Terminal passes through current intercepting image and the last difference determination intercepting the corresponding picture element matrix of image is worked as Front intercepting image and last intercepting image corresponding pixel difference matrix；

Step 1003：Terminal determines each line number value sum of pixel difference matrix；

Step 1004：Terminal determines bottom public area according to each line number value sum of pixel difference matrix and the relation of threshold value Domain and bottom public domain.

As shown in figure 11, when embodiment of the present invention first threshold is identical with Second Threshold, pixel difference matrix rows correspond to Numerical value sum curve synoptic diagram；

When first threshold is identical with Second Threshold, marked with threshold value in fig. 11, with line number for row coordinate pixel difference The corresponding numerical value sum of matrix rows is ordinate, and the corresponding numerical value sum of two field pictures pixel difference matrix rows is one and line number Related curve, and with ordinate for the straight line intersection of threshold value 2 points of corresponding abscissas, as top public domain and bottom The corresponding line number in portion public domain.

As shown in figure 12, the pixel value sum curve of each row pixel of embodiment of the present invention two continuous frames image is illustrated Figure；

With line number for row coordinate, in image, the pixel value sum of each row pixel can obtain two continuous frames figure for ordinate The curve of the pixel value sum of each row pixel of picture, can substantially find out the public area of two continuous frames image in two regions Domain.

As shown in figure 13, the curve synoptic diagram of the mean difference accumulated value of embodiment of the present invention two continuous frames image；

With line number for row coordinate, in image, the corresponding mean difference accumulated value of each row of two continuous frames image is ordinate, can To obtain the curve of the mean difference accumulated value of two continuous frames image, when curve touches the bottom, corresponding line number as connects The corresponding line number in continuous two field pictures overlapping region.

Based on same inventive concept, this discovery embodiment additionally provides a kind of terminal of information processing due to the solution of this terminal The principle of problem is similar to the method for embodiment of the present invention information processing, and the enforcement of therefore this equipment may refer to the reality of method Apply, repeat no more in place of repetition.

As shown in figure 14, the terminal of embodiment of the present invention screen printing image, this terminal includes：Screen capture module 1400, place Reason mould 1401 and synthesis module 1402

Screen capture module 1400, for, after receiving screenshotss operational order, preserving screen with image format currently displaying Content；

Processing module 1401, the content for the distance slip display to set every time stops screenshotss condition until meeting, And after each slip, the currently displaying content of screen is preserved with image format；

Synthesis module 1402, for carrying out synthesis process by the image of preservation.

Terminal can be to provide two kinds of screenshotss modes, and one kind is that existing mode only intercepts present displayed content, and one kind is this The mode of bright embodiment；

In force, after screen capture module 1400 receives the instruction that user needs to carry out screenshotss, can pop-up display frame, by with Family selects to carry out screenshotss using existing mode or the mode of the embodiment of the present invention.

Screen capture module 1400, after determination receives screenshotss operational order, determines whether the content that current screen shows is in The display top of the page or bottom, if not then automatically by the content of screen display switch to the display page top or The bottom of the display page, intercepts by the bottom of display page top or the display page；Current screen can also determined After the content of display is not at top or the bottom of current page, user is reminded to select to start the position of screenshotss.

If user selects to start the position of screenshotss, can also receive user in terminal needs to carry out the instruction of screenshotss, And user selects after carrying out screenshotss by the way of the embodiment of the present invention, then pop-up display frame, the inside have multiple screenshotss modes by User selects which kind of adopts.

Wherein, processing module 1401 controls the mode of slip display content including but not limited to situations below：

If starting to intercept from the top of the display page, now the content of screen display switches to the top of the display page Portion, described processing module 1401 controls upward sliding display content；

If starting to intercept from the bottom of the display page, now the content of screen display switches to the bottom of the display page Portion, described processing module 1401 controls slide downward display content；

If only intercepting the content at the top to the display page for the present displayed content, now described processing module 1401 is controlled Slide downward display content processed, or the content of screen display switches to the top of the display page, and described processing module 1401 controls Upward sliding display content processed；

If only intercepting the content of the bottom to the display page for the present displayed content, now described terminal control slides up Dynamic display content, or the content of screen display switches to the bottom of the display page, and described processing module 1401 controls to downslide Dynamic display content.

The distance slip display content to set for the processing module 1401.

Wherein, the distance setting determines as the size of the performance according to terminal and screen display content, such as can select The a quarter selecting screen display content length is setpoint distance, or can select 1/2nd of screen display content length be Setpoint distance.

Optionally, due to processing module 1401, there is certain time delay to specified location in slip display content every time, so The embodiment of the present invention can arrange a delay time.

After described processing module 1401 is every time with the content of the distance slip display setting, described processing module 1401 exists After certain delay time, the currently displaying content of screen is preserved with image format；

Delay time be the implementation of application in performance and terminal according to terminal determining, for example, it is possible to root The process time slided according to the distance that terminal instructs control screen display content to set from the screenshotss receiving user and In terminal, the mode after the screenshotss operation of receive user, screen sliding being processed of applying of browsing pages to determine delay time.

It should be noted that above-mentioned process time and application are to performance and the end that the mode of the process of screen sliding is only terminal The illustration of the implementation of application in end, wherein every mode that can determine delay time is all applied to the present invention and implements Example.

In force, processing module 1401 after certain delay time with image format preserve screen currently displaying in Hold the time that can ensure that processing module 1401 is processed required for slip screen, namely ensure just to open after sliding into specified location The content currently displaying to screen that begin preserves.

Optionally, with the stopping screenshotss condition of the embodiment of the present invention including but not limited to the part in following condition or complete Portion：

Condition one, the picture number preserving reach maximum intercepting picture number.

Condition two, current truncated picture are identical with last truncated picture；

Wherein, described processing module 1401 can judge whether current truncated picture is cut with last in the following way The image taking is identical：

Described processing module 1401 determines that the current image that intercepts intercepts the corresponding picture element matrix of image with last；

Wherein, the current image that intercepts is converted into corresponding gray-scale map with the last image that intercepts by described processing module 1401 Picture, according to gray level image determine determine current intercept image and on once intercept the corresponding picture element matrix of image, picture element matrix In each element value be image in corresponding pixel points for the image gray value.

It is true that described processing module 1401 passes through the difference that currently intercepting image and last time intercept the corresponding picture element matrix of image Settled front intercepting image and last intercepting image corresponding pixel difference matrix；

Each element in pixel difference matrix is carried out summation and is currently intercepted image and upper one by place processing module 1401 The secondary difference value intercepting image；

Described processing module 1401 determines current intercepting image and the last difference value intercepting image and discrepancy threshold Magnitude relationship；

If currently intercepting image and the last difference value intercepting image being not more than discrepancy threshold, illustrate currently to intercept image With the last time intercepts the difference very little between image, then currently intercepting image is identical with the last image that intercepts, processing module 1401 delete current intercepting image, and the image preserving before is carried out synthesis process；

If currently intercepting image and the last difference value intercepting image is more than discrepancy threshold, illustrate currently to intercept image with Differing greatly between last intercepting image, then currently intercepting image is different with the last image that intercepts, processing module 1401 Continue the content of display of sliding with the distance setting.

Optionally, because, in the operation of whole screenshotss, every frame truncated picture contains the public domain at top, and bottom is public Region, and the intersection with front and back two frame truncated picture altogether, if directly truncated picture is synthesized a two field picture, There is the part of more repetition, data content repeats too much, and discontinuously, so also needing to remove the top public area of repetition Domain, bottom public domain and overlapping region.

Specifically, when the image of preservation is carried out synthesis process by described synthesis module 1402, described synthesis module 1402 Determine the top public domain of every two field picture, bottom public domain and the overlapping region preserving；

The bottom of the top public domain of described synthesis module 1402 reservation the first two field picture and last frame image is public Region, the top public domain in the multiple image that preserve remaining and bottom public domain remove, and retain coincidence area The overlapping region of a two field picture in the identical image of domain, deletes the coincidence area of other two field pictures in the identical image of overlapping region Domain；

Multiple image synthesis after described synthesis module 1402 will be processed is processed into a two field picture.

Wherein, described synthesis module 1402 is determined as follows the top public domain of every two field picture of preservation：

Described synthesis module 1402 chooses any two field pictures from the image preserving, by corresponding for any two field pictures picture The difference of prime matrix is as the first pixel difference matrix of described any two field pictures；

Described synthesis module 1402 is compared according to described first pixel difference matrix and first threshold, if the first pixel In the front A row of difference matrix, every line number value sum is less than first threshold, and A+1 line number value sum is not less than first from top to bottom Threshold value, then using the region of the front A row pixel composition in every two field picture as top public domain, wherein A is positive integer.

In the front A row of the first pixel difference matrix, every line number value sum is less than first threshold, and A before any two field pictures is described The differentiation in different regions of row is less；

A+1 line number value sum is not less than first threshold from top to bottom, illustrates that any two field pictures A+1 row exists larger Difference.

On the basis of in the front A row judge the first pixel difference matrix, every line number value sum is less than first threshold, determine A+1 line number value sum is not less than first threshold, and before any two field pictures are described, the region of A row is identical, belongs to top public Region altogether, and the region of A+1 row is not belonging to top public domain, is not belonging to top public domain by the region of A+1 row, enters And may determine that the region after A+1 row is also not belonging to top public domain, thereby determine that out that top public domain is image In front A row composition region.

Wherein, first threshold is a less numerical value, is the mark being directed to top area each row difference in phenogram picture Quasi- value, the mode according to synthesis module 1402 display image and an empirical value determined by emulation.

Wherein, described synthesis module 1402 is determined as follows the bottom public domain in every two field picture of preservation：

Described synthesis module 1402 chooses any two field pictures from the image preserving, by corresponding for any two field pictures picture The difference of prime matrix is as the second pixel difference matrix of described any two field pictures；

Described synthesis module 1402 is compared according to described second pixel difference matrix and Second Threshold, if the second pixel In the rear B row of difference matrix, every line number value sum is less than Second Threshold, the differentiation in different regions of B row after any two field pictures is described relatively Little, and B+1 line number value sum is not less than Second Threshold from top to bottom, illustrates that the region of any two field pictures B+1 row exists Larger difference, is different regions, then using the region of the front B row pixel composition in every two field picture as bottom public domain, Wherein B is positive integer.

In the front B row of the second pixel difference matrix, every line number value sum is less than Second Threshold, and B before any two field pictures is described The differentiation in different regions of row is less；

B+1 line number value sum is not less than Second Threshold from top to bottom, illustrates that any two field pictures B+1 row exists larger Difference.

On the basis of in the rear B row judge the second pixel difference matrix, every line number value sum is less than Second Threshold, determine B+1 line number value sum is not less than first threshold from top to bottom, and after any two field pictures are described, the region of B row is identical, belongs to In bottom public domain, and the region of B+1 row is not belonging to bottom public domain, is not belonging to bottom by the region of B+1 row public Region altogether, and then may determine that the region after B+1 row is also not belonging to bottom public domain, thereby determine that out bottom public area Domain is the region of front B row composition in image.

Wherein, Second Threshold is a less numerical value, is the standard value of bottom section each row difference in phenogram picture, is Mode according to synthesis module 1402 display image and an empirical value determined by emulation.

Described synthesis module 1402 is determined as follows the overlapping region of every two field picture：

To adjacent two field pictures, by M row pixel before the region of M row pixel composition after previous frame image and a later frame image The region of composition is as overlapping region；

Wherein, after previous frame image before M row pixel and a later frame image M row pixel mean difference accumulated value, less than front The mean difference accumulated value of M+N row pixel before M+N row pixel and a later frame image after one two field picture, M is positive integer, and N is Zero integer, and M+N is more than the maximum number of lines for image for the maximum of zero, M+N；

Namely described synthesis module 1402 is it needs to be determined that M row picture before M row pixel and a later frame image after going out previous frame image The minimum of a value of the mean difference accumulated value of element, when mean difference accumulated value is minimum, M row pixel after its corresponding previous frame image Before the region of composition and a later frame image, the region of M row pixel composition is overlapping region.

Taking in image, comprise ten row pixels as a example, determine respectively 1 before 1 row pixel and a later frame image after previous frame image The mean difference accumulated value of row pixel, the mean difference accumulation of 2 row pixels before 2 row pixels and a later frame image after previous frame image Value, until, before 10 row pixels and a later frame image after previous frame image, the mean difference accumulated value of 10 row pixels, such as determines it Before 3 row pixels and a later frame image after middle previous frame image, the mean difference accumulated value of 3 row pixels is minimum of a value, then former frame figure Before the region forming as rear 3 row pixels and a later frame image, the region of 3 row pixels compositions is overlapping region.

It should be noted that before M row pixel and a later frame image after previous frame image M row pixel mean difference accumulated value When being zero, can directly determine the area of M row pixel composition before the region of M row pixel composition and a later frame image after previous frame image Domain is overlapping region；If not having mean difference accumulated value to be zero, need to calculate always all row of previous frame image and after The mean difference accumulated value of all row of one two field picture, and determine the minimum of a value of wherein mean difference accumulated value.

Wherein, described synthesis module 1402 determines mean difference accumulated value according to following manner：

The value preset and rear one of Z row each row pixel value after in the picture element matrix of described synthesis module 1402 determination previous frame image The difference of each row pixel value sum of front Z row in the corresponding picture element matrix of two field picture；

Wherein, in picture element matrix, the computing formula of each row pixel value sum is as follows：

$F_i\left(h\right)=\underset{w=1}{\overset{w}{\Σ}}{A}_i(w,h),F_{i+1}\left(h\right)=\underset{w=1}{\overset{w}{\Σ}}{A}_{i+1}(w,h);$

Wherein, w represents the horizontal pixel width of image, F_iH () represents the pixel value that previous frame image line number is this row during h Sum, A_i(w, h) represents that in previous frame image, pixel point coordinates is the pixel value at (w, h) place, F_i+1H () represents a later frame image Line number is the pixel value sum of this row during h, A_i+1(w, h) represents that in a later frame image, pixel point coordinates is the pixel at (w, h) place Value.

Described synthesis module 1402 Z row pixel and a later frame figure as after previous frame image using the ratio of described difference and Z Mean difference accumulated value as front Z row pixel；

Wherein, the computing formula of mean difference accumulated value is as follows：

$L\left(Z\right)=\frac{\underset{k}{\overset{Z}{\Σ}}{F}_i(H-k)-F_{i+1}(Z-k)}{Z};$

Wherein, H is the maximum of picturedeep, and L (Z) represents Z row before Z row pixel and a later frame image after previous frame image The mean difference accumulated value of pixel, F_i(H-k) previous frame image this row pixel value sum in H-k row, F are represented_i+1(Z-k) Represent a later frame image this row pixel value sum in Z-k row, the summation part in above-mentioned formula is to start to sue for peace from k value, k Can select to start to change from 0 to select a value less than Z from a non-zero to start to change, general previous frame image is Afterwards the region of several row and a later frame image start most several row differentiation in different regions less, be relatively also easy to produce previous frame image last rows Region and a later frame image start the mean difference accumulated value feelings also less than the average difference values of real intersection of several row most Condition, in order to avoid the transmission of this situation, can make k start to change from a less numerical value of non-zero.

Wherein, Z is positive integer, and the maximum of Z is the maximum number of lines of image.

It should be noted that described synthesis module 1402 determines each row pixel value according to following manner：

For any a line, described synthesis module 1402 is using the brightness value sum of each pixel of this row in image as this row Pixel value；Or

Described synthesis module 1402 is by corresponding with pixel position for the brightness value of each pixel of this row in image default power The sum of products of weight is as this row pixel value.

Wherein, the corresponding default weighted value in pixel position can select linear ascending weights it is also possible to select waveform to become Change weight, the position in this row is related to pixel due to weighted value, so the mean pixel difference being calculated using weighted value Accumulated value more can reflect the difference of two field pictures；

When the content that two continuous frames image shows is that position there occurs change, this two field pictures is two different frame figures Picture, using the mean pixel difference accumulated value that the brightness value of pixel calculates for the different viewing area of content same position be Thereby increases and it is possible to be minimum of a value, described synthesis module 1402 can exist certain using this region as overlapping region one value of very little Deviation.

Described synthesis module 1402 determines the overlapping region of every two field picture, including：

To adjacent two field pictures, by X row pixel groups after the region of X row pixel composition before former frame figure and a later frame image The region becoming is as overlapping region；

Wherein, before previous frame image after X row pixel and a later frame image Y row pixel mean difference accumulated value, less than front The mean difference accumulated value of X+Y row pixel after X+Y row pixel and a later frame image before one two field picture, X is positive integer, and Y is Zero integer, and X+Y is more than the maximum number of lines for image for the maximum of zero, X+Y；

Namely described synthesis module 1402 is it needs to be determined that X row picture after X row pixel and a later frame image before going out previous frame image The minimum of a value of the mean difference accumulated value of element, when mean difference accumulated value is minimum, X row pixel before its corresponding previous frame image Behind the region of composition and a later frame image, the region of X row pixel composition is overlapping region.

Taking in image, comprise ten row pixels as a example, determine respectively 1 after 1 row pixel and a later frame image before previous frame image The mean difference accumulated value of row pixel, the mean difference accumulation of 2 row pixels after 2 row pixels and a later frame image before previous frame image Value, until, after 10 row pixels and a later frame image before previous frame image, the mean difference accumulated value of 10 row pixels, such as determines it After 3 row pixels and a later frame image before middle previous frame image, the mean difference accumulated value of 3 row pixels is minimum of a value, then former frame figure Behind the region forming as front 3 row pixels and a later frame image, the region of 3 row pixels compositions is overlapping region.

It should be noted that after X row pixel and a later frame image before previous frame image X row pixel mean difference accumulated value When being zero, can directly determine the area of X row pixel composition behind the region of X row pixel composition and a later frame image before previous frame image Domain is overlapping region；If not having mean difference accumulated value to be zero, need to calculate always all row of previous frame image and after The mean difference accumulated value of all row of one two field picture, and determine the minimum of a value of wherein mean difference accumulated value；

Wherein, described synthesis module 1402 determines mean difference accumulated value according to following manner：

Described synthesis module 1402 determines each row pixel value sum of front S row and a later frame in the picture element matrix of previous frame image The difference of S row each row pixel value sum after in the corresponding picture element matrix of image；

Wherein, in picture element matrix, the computing formula of each row pixel value sum is as follows：

$F_i\left(h\right)=\underset{w=1}{\overset{w}{\Σ}}{A}_i(w,h),F_{i+1}\left(h\right)=\underset{w=1}{\overset{w}{\Σ}}{A}_{i+1}(w,h);$

Wherein, w represents the horizontal pixel width of image, F_iH () represents the pixel value that previous frame image line number is this row during h Sum, A_i(w, h) represents that in previous frame image, pixel point coordinates is the pixel value at (w, h) place, F_i+1H () represents a later frame image Line number is the pixel value sum of this row during h, A_i+1(w, h) represents that in a later frame image, pixel point coordinates is the pixel at (w, h) place Value.

Described synthesis module 1402 S row pixel and a later frame figure as before previous frame image using the ratio of described difference and S Mean difference accumulated value as rear S row pixel；

Wherein, the computing formula of mean difference accumulated value is as follows：

$L\left(S\right)=\frac{\underset{k}{\overset{S}{\Σ}}{F}_i(S-k)-F_{i+1}(H-k)}{S};$

Wherein, H is the maximum of picturedeep, and L (S) represents S row after S row pixel and a later frame image before previous frame image The mean difference accumulated value of pixel, F_i(S-k) previous frame image this row pixel value sum in S-k row, F are represented_i+1(H-k) Represent a later frame image this row pixel value sum in H-k row, the summation part in above-mentioned formula is to start to sue for peace from k value, k Can select to start to change from 0 to select a value less than S from a non-zero to start to change, general previous frame image is Start the region of several row and the differentiation in different regions of a later frame image last rows is less, be relatively also easy to produce previous frame image and start several row most Region and a later frame image last rows mean difference accumulated value feelings also less than the average difference values of real intersection Condition, in order to avoid the transmission of this situation, can make k start to change from a less numerical value of non-zero.

Wherein, S is positive integer, and the maximum of S is the maximum number of lines of image.

It should be noted that described synthesis module 1402 determines each row pixel value according to following manner：

For any a line, described synthesis module 1402 is using the brightness value sum of each pixel of this row in image as this row Pixel value；Or

Described synthesis module 1402 is by corresponding with pixel position for the brightness value of each pixel of this row in image default power The sum of products of weight is as this row pixel value.

Wherein, the corresponding default weighted value in pixel position can select linear ascending weights it is also possible to select waveform to become Change weight, the position in this row is related to pixel due to weighted value, so the mean pixel difference being calculated using weighted value Accumulated value more can reflect the difference of two field pictures；

When the content that two continuous frames image shows is that position there occurs change, this two field pictures is two different frame figures Picture, using the mean pixel difference accumulated value that the brightness value of pixel calculates for the different viewing area of content same position be Thereby increases and it is possible to be minimum of a value, described synthesis module 1402 can exist certain using this region as overlapping region one value of very little Deviation.

Frame above by reference to the method illustrating according to the embodiment of the present application, device (system) and/or computer program Figure and/or flow chart describe the application.It should be understood that block diagram and/or flow process diagram can be realized by computer program instructions The combination of the block of one block of figure and block diagram and/or flowchart illustration.These computer program instructions can be supplied to logical With computer, the processor of special-purpose computer and/or other programmable data processing unit, by produce machine so that via in terms of The instruction of calculation machine processor and/or other programmable data processing unit execution creates and is used for realizing block diagram and/or flow chart block In specified function/action method.

Correspondingly, the application can also be implemented with hardware and/or software (including firmware, resident software, microcode etc.).More Further, the application can take computer can using or computer-readable recording medium on computer program shape Formula, it has the computer realized in media as well and can use or computer readable program code, to be made by instruction execution system With or combined command execution system and use.In the present context, computer can use or computer-readable medium is permissible It is arbitrary medium, it can comprise, store, communicating, transmission or transmission program, to be made by instruction execution system, device or equipment With, or combined command execution system, device or equipment use.

Obviously, those skilled in the art can carry out the various changes and modification essence without deviating from the present invention to the present invention God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to comprise these changes and modification.

Claims (11)

1. a kind of method of screen printing image is it is characterised in that the method includes：

Terminal, after receiving screenshotss operational order, preserves the currently displaying content of screen with image format；

Described terminal slides the content showing until meeting stopping screenshotss condition with the distance setting every time, and after each slip The currently displaying content of screen is preserved with image format；

The image of preservation is carried out synthesis process by described terminal.

2. the method for claim 1 it is characterised in that described stopping screenshotss condition comprise part in following condition or All：

The picture number preserving reaches maximum intercepting picture number；

Current truncated picture is identical with last truncated picture.

3. the method for claim 1 is it is characterised in that the image of preservation is carried out synthesis process by described terminal, including：

Described terminal determines the top public domain of every two field picture, bottom public domain and the overlapping region preserving；

Described terminal retains the top public domain of the first two field picture and the bottom public domain of last frame image, by remaining Top public domain in the multiple image preserving and bottom public domain remove, and retain in the identical image of overlapping region The overlapping region of one two field picture, deletes the overlapping region of other two field pictures in the identical image of overlapping region；

Multiple image after processing is synthesized a two field picture by described terminal.

4. method as claimed in claim 3 is it is characterised in that described terminal determines the top public area of the every two field picture preserving Domain, specifically includes：

Described terminal chooses any two field pictures from the image preserving, and determines the first pixel difference of described any two field pictures Different matrix；

Described terminal is compared according to described first pixel difference matrix and first threshold, if before the first pixel difference matrix In A row, every line number value sum is less than first threshold, and A+1 line number value sum is not less than first threshold from top to bottom, then will be every As top public domain, wherein A is positive integer in the region of the front A row pixel composition in two field picture.

5. method as claimed in claim 3 is it is characterised in that described terminal determines that the bottom in the every two field picture preserving is public Region, specifically includes：

Described terminal chooses any two field pictures from the image preserving, and determines the second pixel difference of described any two field pictures Different matrix；

Described terminal is compared according to described second pixel difference matrix and Second Threshold, if after the second pixel difference matrix In B row, every line number value sum is less than Second Threshold, and B+1 line number value sum is not less than Second Threshold from top to bottom, then will be every As bottom public domain, wherein B is positive integer in the region of the front B row pixel composition in two field picture.

6. method as claimed in claim 3 is it is characterised in that described terminal is shown apart from upward sliding with set every time Content, described terminal determines the overlapping region of every two field picture, including：

To adjacent two field pictures, by M row pixel composition before the region of M row pixel composition after previous frame image and a later frame image Region as overlapping region；

Wherein, after previous frame image before M row pixel and a later frame image M row pixel mean difference accumulated value, less than former frame The mean difference accumulated value of M+N row pixel before M+N row pixel and a later frame image after image, M is positive integer, and N is not zero Integer, and M+N is more than the maximum number of lines for image for the maximum of zero, M+N.

7. method as claimed in claim 6 is it is characterised in that according to following manner, described terminal determines that mean difference is accumulated Value：

Described terminal determine in the picture element matrix of previous frame image after Z row each row pixel value value preset corresponding with a later frame image The difference of each row pixel value sum of front Z row in picture element matrix；

Described terminal is using Z row pixel before the ratio of described difference and Z Z row pixel and a later frame image as after previous frame image Mean difference accumulated value；

Wherein, Z is positive integer, and the maximum of Z is the maximum number of lines of image.

8. method as claimed in claim 3 is it is characterised in that described terminal is shown apart from slide downward with set every time Content, described terminal determines the overlapping region of every two field picture, including：

To adjacent two field pictures, by X row pixel composition after the region of X row pixel composition before former frame figure and a later frame image Region is as overlapping region；

Wherein, before previous frame image after X row pixel and a later frame image Y row pixel mean difference accumulated value, less than former frame The mean difference accumulated value of X+Y row pixel after X+Y row pixel and a later frame image before image, X is positive integer, and Y is not zero Integer, and X+Y is more than the maximum number of lines for image for the maximum of zero, X+Y.

9. method as claimed in claim 8 is it is characterised in that according to following manner, described terminal determines that mean difference is accumulated Value：

Described terminal determines each row pixel value sum of front S row picture corresponding with a later frame image in the picture element matrix of previous frame image The difference of S row each row pixel value sum after in prime matrix；

Described terminal is using S row pixel after the ratio of described difference and S S row pixel and a later frame image as before previous frame image Mean difference accumulated value；

Wherein, S is positive integer, and the maximum of S is the maximum number of lines of image.

10. the method as described in claim 7 or 9 is it is characterised in that described terminal determines each row pixel according to following manner Value：

For any a line, described terminal is using the brightness value sum of each pixel of this row in image as this row pixel value；Or

Described terminal is by the sum of products of corresponding with pixel position for the brightness value of each pixel of this row in image default weight As this row pixel value.

A kind of 11. terminals of screen printing image are it is characterised in that this terminal includes：

Screen capture module, for, after receiving screenshotss operational order, preserving the currently displaying content of screen with image format；

Processing module, the content for the distance slip display to set every time stops screenshotss condition until meeting, and each After slip, the currently displaying content of screen is preserved with image format；

Synthesis module, for carrying out synthesis process by the image of preservation.