CN104795048A - Color calibration method and system for tiled displays - Google Patents
Color calibration method and system for tiled displays Download PDFInfo
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Abstract
The invention provides a color calibration method and system for tiled displays. The method includes the steps of when a normal display unit of a tiled display displays first chromatic level of abnormal primary color of an abnormal display unit and the abnormal display unit displays second chromatic level of the abnormal primary color, photographing the tiled display to obtain a first image of the abnormal display unit and a second image of the normal display unit; according to image values of multiple preset positions of the first image, acquiring a color value of the abnormal display unit; according to image values of multiple preset positions of the second image, acquiring a color value of the normal display unit; judging whether a difference between the color value of the abnormal display unit and the color value of the normal display unit is in a set range; if not, subjecting the current second chromatic level to equal step-length adjustment, using an adjusted value as new second chromatic level, and returning to the step of photographing the tiled display; if yes, updating the first chromatic level in a data set corresponding to the abnormal primary color to second chromatic level. The color calibration method and system has the advantage that calibration efficiency is improved.
Description
Technical field
The present invention relates to color calibration technical field, particularly relate to a kind of mosaic display screen color calibration method and system.
Background technology
Common Large Screen Display Technology, is realized by mosaic display screen.Mosaic display screen, when carrying out image display, needs the color of each display unit to keep basically identical, namely reach display equilibrium state, otherwise meeting effect diagram is as harmony.
When mosaic display screen dispatches from the factory when adjustment reaches first display balance, the parameter value of R (redness), G (green), B (blueness) three primary colours can be preserved with a database, each display unit corresponds to a data matrix in this display balance database, comprises three the data groups corresponding respectively to R, G, B tri-kinds of primary colours in this data matrix.But, in follow-up display, due to the impact of many factors, this initial data base can not make the color of each display unit in follow-up display reach consistent, therefore need to adjust further the data group corresponding to the inconsistent display unit of color, and be saved in database.
Mostly traditional mosaic display screen color calibration mode, be by carrying out Serial regulation or non-linear piecewise adjustment to three primary colours, but owing to needing to calibrate the whole display screen of mosaic display screen, there is the defect that calibration efficiency is low.
Summary of the invention
The object of the present invention is to provide a kind of mosaic display screen color calibration method and system, can calibration efficiency be improved.
Object of the present invention is achieved through the following technical solutions:
A kind of mosaic display screen color calibration method, comprises the steps:
When first color range of the abnormal primary colours of the normal display unit display abnormal show unit in mosaic display screen, described abnormal show unit show the second color range of described abnormal primary colours, described mosaic display screen is taken, obtains the first image corresponding to described abnormal show unit and the second image corresponding to described normal display unit;
Obtain abnormal show cell colors value according to the image value of multiple predeterminated positions of described first image, and obtain normal display unit color value according to the image value of multiple predeterminated positions of described second image;
Judge described abnormal show cell colors value, whether the difference of described normal display unit color value be in setting range;
If not, unique step adjustment is carried out to the second current color range, using the numerical value after adjustment as the second new color range, return the described step that described mosaic display screen is taken;
If so, the first color range in data group corresponding for described abnormal primary colours is updated to the second current color range.
A kind of mosaic display screen color calibration system, comprising:
Taking module, when showing the second color range of described abnormal primary colours for the first color range of the abnormal primary colours of the normal display unit display abnormal show unit in mosaic display screen, described abnormal show unit, or after adjusting module carries out unique step adjustment to the second current color range, described mosaic display screen is taken, obtains the first image corresponding to described abnormal show unit and the second image corresponding to described normal display unit;
Image processing module, the image value for the multiple predeterminated positions according to described first image obtains abnormal show cell colors value, and obtains normal display unit color value according to the image value of multiple predeterminated positions of described second image;
Judge module, for judging described abnormal show cell colors value, whether the difference of described normal display unit color value be in setting range;
Described adjusting module, for when the result of determination of described judge module is no, carries out unique step adjustment to the second current color range;
Update module, for when the result of determination of described judge module is for being, is updated to the second current color range by the first color range in data group corresponding for described abnormal primary colours.
According to the scheme of the invention described above, it shows the first color range at normal display unit, when abnormal show unit shows the second color range, mosaic display screen is taken, obtain the first image that abnormal show unit is corresponding, and the second image that normal display unit is corresponding, and respectively to the first image, the color value of each desired location in the second image is averaged and is obtained abnormal show cell colors value and normal display unit color value, data group corresponding to abnormal primary colours is adjusted based on this abnormal show cell colors value and normal display unit color value, owing to only needing color value to several positions of abnormal show unit and image corresponding to normal display unit and mean value, and adjust data group corresponding to abnormal primary colours based on the mean value asked for, and whole process do not need user to carry out any operation just can the completing of robotization, improve correction efficiency.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of mosaic display screen color calibration method embodiment of the present invention;
Fig. 2 is the step S103 refinement schematic flow sheet in one embodiment in Fig. 1;
Fig. 3 is mode of the choosing schematic diagram of desired location;
Fig. 4 is the step S103 refinement schematic flow sheet in another embodiment in Fig. 1;
Fig. 5 is the structural representation of an embodiment of mosaic display screen color calibration system of the present invention;
Fig. 6 is the structural representation of another embodiment of mosaic display screen color calibration system of the present invention;
Fig. 7 is image processing module in Fig. 6 structural representation wherein in an embodiment;
Fig. 8 is image processing module in Fig. 6 structural representation wherein in another embodiment.
Embodiment
For making object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is described in further detail.Should be appreciated that embodiment described herein only in order to explain the present invention, do not limit protection scope of the present invention.
In the following description, the embodiment first for mosaic display screen color calibration method of the present invention is described, then is described each embodiment of mosaic display screen color calibration system of the present invention.
Shown in Figure 1, be the schematic flow sheet of mosaic display screen color calibration method embodiment of the present invention.As shown in Figure 1, mosaic display screen color calibration method of the present invention comprises the steps:
Step S101: when satisfied setting moment calibration condition, or when receiving calibration command, each display unit controlling mosaic display screen shows each primary colours respectively, enters step S102;
In this step, set two kinds of modes and start calibration flow process, one starts when satisfied setting moment calibration condition, that is, can set some moment startup calibration flow process according to actual needs, such as, set a moment every day, start when the time arrives the moment of this setting, adopt in this way, without the need to carrying out emergency treatment again when pinpointing the problems, mosaic display screen can be made to keep reasonable colour consistency always; Another kind of mode is when receiving calibration command, like this, user can trigger this calibration command when naked eyes see certain display unit color exception, enforceablely carry out color calibration, the combination of two kinds of situations can ensure mosaic screen colour consistency preferably, often also needs in actual applications to consider such processing mode.
Wherein, the mode controlling display unit display primary can adopt the mode that can realize arbitrarily, does not repeat them here; First can control each display unit display R primary colours of mosaic display screen, then control each display unit display G primary colours of mosaic display screen, first each display unit finally controlling mosaic display screen shows B primary colours, certainly, is also not limited to this DISPLAY ORDER;
Step S102: all take described mosaic display screen when often showing primary colours, obtains each display image, enters step S103;
Often show a kind of primary colours, all take a display screen, like this, three display images of corresponding R primary colours, G primary colours, B primary colours respectively can be obtained;
Step S103: the abnormal primary colours that there is display deviation according to each described display image determination abnormal show unit, enter step S104;
Particularly, first respectively graphical analysis can be carried out to each described display image, determine abnormal show unit, again the abnormal primary colours that graphical analysis determination abnormal show unit exists display deviation are carried out to each described display image, in order to improve calibration efficiency, below provide a kind of mode that described abnormal show unit exists the abnormal primary colours of display deviation of determining by averaging to the color value of multiple spot on display image;
According to each described display image, an embodiment wherein, when satisfied setting moment calibration condition, as shown in Figure 2, describedly determines that the step of abnormal primary colours that described abnormal show unit exists display deviation can comprise the steps:
Step S201: the color value determining each desired location of the 3rd image that each display unit is corresponding according to the first display image, wherein, the first display image is any one display image, enters step S202;
Wherein, desired location can be chosen according to actual needs, in order to fully reflect the color value of the 3rd image, generally to get the 3rd image upper left, upper right, lower-left, bottom right, five middle points are good, such as, as shown in Figure 3, in point, to the right (x-axis) centered by the summit O in the upper left corner of the 3rd image, (y-axis) is that in the rectangular coordinate system of two positive dirctions foundation, rectangle OABC represents the 3rd image, and the desired location got is respectively D (2,2) downwards, E (weidth-2,2), F (2, height-2), G (weidth-2, height-2), H (weidth/2, height/2) five points, wherein, weidth and height refers to width and the height of the 3rd image respectively, (2,2), (weidth-2,2), (2, height-2), (weidth-2, height-2), (weidth/2, height/2) represents the coordinate figure of corresponding point respectively, and (2,2) expression is distinguished left from the central point of rectangular coordinate system, offset downward two pixel coordinates, visible, desired location on the 3rd image four angle is all regular lengths from the summit at four angles to off-centring, adopts in this way, when the color of image value of subsequent calculations the 3rd image, the accuracy of the color of image value of the 3rd image can be improved,
Step S202: the color of image value determining the 3rd corresponding image respectively according to the color value of each desired location of each 3rd image;
For each the 3rd image, can average to the color value of its each desired location and obtain the color of image value of the 3rd image;
Step S203: obtain benchmark image color value, and judge whether according to each described color of image value and described benchmark image color value the display unit having display deviation respectively, if exist, enter step S204;
The color of image value of each the 3rd image and the difference of benchmark image color value can be asked for respectively, respectively the absolute value of each difference and the threshold value of setting are compared again, if corresponding absolute value is greater than threshold value, then corresponding display unit has display deviation;
Benchmark image color value can pre-set, also can determine according to the color of image value of three the 3rd images chosen arbitrarily, such as, can according to the 3rd image A, 3rd image B, 3rd image C determines, particularly, to the 3rd image A, 3rd image B, 3rd image C asks difference between two, and compare trying to achieve the threshold value that three differences obtain absolute value and setting, if all little than the threshold value of setting, then can by the 3rd image A, 3rd image B, the color of image value of any one the 3rd image in the 3rd image C is as benchmark image color value, if there are two differences less than the threshold value of setting, then using the color of image value of all corresponding for these two differences the 3rd image as benchmark image color value, if only a difference is less than the threshold value of setting, then using the color of image value of the 3rd image of two all corresponding for this difference the 3rd images as benchmark image color value,
Step S204: by there being the display unit of display deviation to be defined as described abnormal show unit, primary colours corresponding for described first display image are defined as described abnormal primary colours;
Each display image can carry out graphical analysis respectively as the first display image according to above-mentioned steps S201 ~ step S204.
Wherein in an embodiment, as shown in Figure 4, when receiving calibration command, describedly determine that the step of abnormal primary colours that described abnormal show unit exists display deviation can comprise the steps: according to each described display image
Step S301: determine described abnormal show unit according to described calibration command, enter step S302;
As previously mentioned, the calibration flow process owing to being triggered by calibration command is occurred in user's naked eyes often and sees certain each display unit color exception; Therefore, in order to save the alignment time, the identification number of abnormal show unit can be added in calibration command, thus described abnormal show unit can be determined according to described calibration command;
Step S302: the color value determining each desired location of the color value of each desired location of the 4th image that described abnormal show unit is corresponding and the 5th image corresponding to normal display unit according to second display screen image, enters step S303;
Normal display unit in the present embodiment is general adjacent with abnormal show unit, can choose a normal display unit of display as the normal display unit in the present embodiment from multiple adjacent display cells of abnormal show unit;
Step S303: according to the color value determination abnormal image color value of each desired location of described 4th image, the color value according to each desired location of described 5th image determines described normal picture color value, enters step S304;
The abnormal image color value of the mode determination abnormal show unit can averaged by the color value of each desired location to the 4th image, the mode can averaged by the color value of each desired location to the 5th image determines the abnormal image color value of normal display unit;
Step S304: judge that the primary colours whether described abnormal show unit is corresponding to shown second display screen image exist display extremely according to described abnormal image color value and described normal picture color value, if so, then enter step S305;
Abnormal image color value and normal picture color value can be asked poor, again the difference obtained is averaged, and the threshold value of the mean value asked for and setting is compared, if the mean value asked for is greater than threshold value, then determine that the primary colours whether described abnormal show unit is corresponding to shown second display screen image exist display extremely;
Step S305: primary colours corresponding for described second display screen image are defined as described abnormal primary colours.
Each display image can carry out graphical analysis respectively as second display screen image according to above-mentioned steps S301 ~ step S305.
It should be noted that, determine that the mode of abnormal show unit and abnormal primary colours is also not limited to aforesaid way, also can directly perform from following step S104 when determining abnormal show unit and abnormal primary colours.
Step S104: when the first color range of the abnormal primary colours of the normal display unit display abnormal show unit in mosaic display screen, described abnormal show unit show the second color range of described abnormal primary colours, described mosaic display screen is taken, obtain the first image corresponding to described abnormal show unit and the second image corresponding to described normal display unit, enter step S105;
Under initial situation, the second color range can be set to identical with the first color range;
Step S105: obtain abnormal show cell colors value according to the image value of multiple predeterminated positions of described first image, and obtain normal display unit color value according to the image value of multiple predeterminated positions of described second image, enter step S106;
Abnormal show cell colors value in the present embodiment refers to the color value of the first image that abnormal show unit is corresponding, and the normal display unit color value in the present embodiment refers to the color value of the second image that normal display unit is corresponding;
Can average to the image value of multiple predeterminated positions of the first image and obtain abnormal show cell colors value, and can average to the image value of multiple predeterminated positions of the second image and obtain normal display unit color value;
The mode of choosing of predeterminated position can as previously mentioned, not repeat them here;
Step S106: judge described abnormal show cell colors value, whether the difference of described normal display unit color value be in setting range, if not, then enter step S107, if so, then enter step S108;
Step S107: carry out unique step adjustment to the second current color range, using the numerical value after adjustment as the second new color range, returns described step S104;
Carry out unique step adjustment to the second current color range refer to the second current color range increase or reduce by a step-length, step value can set as required;
Step S108: the first color range in data group corresponding for described abnormal primary colours is updated to the second current color range.
In the calibration process that initial second color range is identical with the first color range, calibrate the d1 color range of the abnormal primary colours of abnormal show unit, its detailed process can be:
First, control abnormal show unit and adjacent with this abnormal show unit and show a normal normal display unit and show d1 color range (be equivalent to the first color range as above and the second current color range is d1 color range), mosaic display screen is taken, the first image corresponding to abnormal show unit is extracted from the image that shooting obtains, and the second image that normal display unit is corresponding;
Subsequently, the image value of multiple predeterminated positions of the first image is averaged and obtains abnormal show cell colors value, and abnormal show cell colors value of averaging is obtained to the image value of multiple predeterminated positions of the second image;
After obtaining current abnormal show cell colors value, normal display unit color value, ask for the difference of abnormal show cell colors value and normal display unit color value, judge whether this difference is in setting range;
If current difference is not in setting range, normal display unit is kept to show d1 color range constant, and the d1 color range that abnormal show unit shows is increased progressively, such as increase progressively 1 at every turn, and after increasing progressively at every turn, again mosaic display screen is taken, the first image corresponding to abnormal show unit is extracted from the image that shooting obtains, and the second image that normal display unit is corresponding, and again ask for current abnormal show cell colors value, normal display unit color value, ask for the difference of the current abnormal show cell colors value that obtains and normal display unit color value, until the difference of the two is in setting range complete calibration, if d1 color range is incremented to maximal value, (255) also do not complete calibration, then the d1 color range that abnormal show unit shows is successively decreased, such as successively decrease 1 at every turn, and after successively decreasing at every turn, again mosaic display screen is taken, the first image corresponding to abnormal show unit is extracted from the image that shooting obtains, and the second image that normal display unit is corresponding, and again ask for current abnormal show cell colors value, normal display unit color value, ask for the difference of the current abnormal show cell colors value that obtains and normal display unit color value, until the difference of the two is in setting range complete calibration,
When completing calibration, the d1 color range (being equivalent to the first color range as above) in data group corresponding for described abnormal primary colours is updated to the color range (being equivalent to the second current color range as above) of current abnormal show unit display.
In addition, in order to improve calibration efficiency further, above-mentioned is completed by camera the process that described mosaic display screen is taken, adopt this mode of described mosaic display screen being taken by camera, can make the full automatic process of whole calibration process, calibration efficiency can significantly improve.
Accordingly, according to the scheme of above-described embodiment, it shows the first color range at normal display unit, when abnormal show unit shows the second color range, mosaic display screen is taken, obtain the first image that abnormal show unit is corresponding, and the second image that normal display unit is corresponding, and respectively to the first image, the color value of each desired location in the second image is averaged and is obtained abnormal show cell colors value and normal display unit color value, data group corresponding to abnormal primary colours is adjusted based on this abnormal show cell colors value and normal display unit color value, owing to only needing color value to several positions of abnormal show unit and image corresponding to normal display unit and mean value, and adjust data group corresponding to abnormal primary colours based on the mean value asked for, and whole process do not need user to carry out any operation just can the completing of robotization, improve correction efficiency.
According to the mosaic display screen color calibration method of the invention described above, the present invention also provides a kind of mosaic display screen color calibration system, and just the embodiment of mosaic display screen color calibration system of the present invention is described in detail below.The structural representation of the embodiment of mosaic display screen color calibration system of the present invention has been shown in Fig. 5.For convenience of explanation, part related to the present invention is merely illustrated in Figure 5.
As shown in Figure 5, the mosaic display screen color calibration system in the present embodiment, comprises taking module 401, image processing module 402, judge module 403, adjusting module 404, update module 405, wherein:
Taking module 401, when showing the second color range of described abnormal primary colours for the first color range of the abnormal primary colours of the normal display unit display abnormal show unit in mosaic display screen, described abnormal show unit, or after adjusting module 404 carries out unique step adjustment to the second current color range, described mosaic display screen is taken, obtains the first image corresponding to described abnormal show unit and the second image corresponding to described normal display unit;
Image processing module 402, the image value for the multiple predeterminated positions according to described first image obtains abnormal show cell colors value, and obtains normal display unit color value according to the image value of multiple predeterminated positions of described second image;
Judge module 403, for judging described abnormal show cell colors value, whether the difference of described normal display unit color value be in setting range;
Adjusting module 404, for when the result of determination of judge module 403 is no, carries out unique step adjustment to the second current color range;
Update module 405, for when the result of determination of judge module 403 is for being, is updated to the second current color range by the first color range in data group corresponding for described abnormal primary colours.
Wherein in an embodiment, as shown in Figure 6, mosaic display screen color calibration system of the present invention, can also comprise control module 406, wherein:
Control module 406 is for when satisfied setting moment calibration condition, or when receiving calibration command, each display unit controlling mosaic display screen shows each primary colours respectively;
Taking module 401 can also be used for all taking described mosaic display screen when often showing primary colours, obtains each display image;
Image processing module 402 can also be used for determining that described abnormal show unit exists the abnormal primary colours of display deviation according to each described display image.
Wherein in an embodiment, as shown in Figure 7, image processing module 402 can comprise:
First acquiring unit 501, for when satisfied setting moment calibration condition, determine the color value of each desired location of the 3rd image that each display unit is corresponding according to the first display image, wherein, the first display image is any one display image;
First asks for unit 502, for determining the color of image value of the 3rd corresponding image respectively according to the color value of each desired location of each 3rd image;
First judging unit 503, for obtaining benchmark image color value, and judges whether according to each described color of image value and described benchmark image color value the display unit having display deviation respectively;
Primary colours corresponding for described first display image, during for the result of determination of the first judging unit 503 for being, by there being the display unit of display deviation to be defined as described abnormal show unit, are defined as described abnormal primary colours by the first determining unit 504.
Wherein in an embodiment, as shown in Figure 8, image processing module 402 can comprise:
Second acquisition unit 601, for when receiving calibration command, determine described abnormal show unit according to described calibration command, determine the color value of each desired location of the color value of each desired location of the 4th image that described abnormal show unit is corresponding and the 5th image corresponding to described normal display unit according to second display screen image;
Second asks for unit 602, and for the color value determination abnormal image color value of each desired location according to described 4th image, the color value according to each desired location of described 5th image determines described normal picture color value;
Second judging unit 603, for judging that according to described abnormal image color value and described normal picture color value the primary colours whether described abnormal show unit is corresponding to second display screen image exist display extremely;
Primary colours corresponding for described second display screen image, during for the result of determination of the second judging unit 603 for being, are defined as described abnormal primary colours by the second determining unit 604.
Wherein in an embodiment, taking module 401 can be taken described mosaic display screen by camera.
Mosaic display screen color calibration system of the present invention and mosaic display screen color calibration method one_to_one corresponding of the present invention, the technical characteristic of setting forth in the embodiment of above-mentioned mosaic display screen color calibration method and beneficial effect thereof are all applicable to, in the embodiment of mosaic display screen color calibration system, hereby state.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a mosaic display screen color calibration method, is characterized in that, comprises the steps:
When first color range of the abnormal primary colours of the normal display unit display abnormal show unit in mosaic display screen, described abnormal show unit show the second color range of described abnormal primary colours, described mosaic display screen is taken, obtains the first image corresponding to described abnormal show unit and the second image corresponding to described normal display unit;
Obtain abnormal show cell colors value according to the image value of multiple predeterminated positions of described first image, and obtain normal display unit color value according to the image value of multiple predeterminated positions of described second image;
Judge described abnormal show cell colors value, whether the difference of described normal display unit color value be in setting range;
If not, unique step adjustment is carried out to the second current color range, using the numerical value after adjustment as the second new color range, return the described step that described mosaic display screen is taken;
If so, the first color range in data group corresponding for described abnormal primary colours is updated to the second current color range.
2. mosaic display screen color calibration method according to claim 1, is characterized in that, also comprise step:
When satisfied setting moment calibration condition, or when receiving calibration command, each display unit controlling mosaic display screen shows each primary colours respectively;
All described mosaic display screen being taken when often showing primary colours, obtaining each display image;
Determine that described abnormal show unit exists the abnormal primary colours of display deviation according to each described display image.
3. mosaic display screen color calibration method according to claim 2, is characterized in that:
When satisfied setting moment calibration condition, describedly determine that the step of abnormal primary colours that described abnormal show unit exists display deviation comprises the steps: according to each described display image
Determine the color value of each desired location of the 3rd image that each display unit is corresponding according to the first display image, wherein, the first display image is any one display image;
The color of image value of the 3rd corresponding image is determined respectively according to the color value of each desired location of each 3rd image;
Obtain benchmark image color value, and judge whether according to each described color of image value and described benchmark image color value the display unit having display deviation respectively;
If exist, by there being the display unit of display deviation to be defined as described abnormal show unit, primary colours corresponding for described first display image are defined as described abnormal primary colours.
4. mosaic display screen color calibration method according to claim 2, is characterized in that:
When receiving calibration command, described according to each described display image determine described abnormal show unit exist display deviation abnormal primary colours comprise the steps:
Described abnormal show unit is determined according to described calibration command;
The color value of each desired location of the color value of each desired location of the 4th image that described abnormal show unit is corresponding and the 5th image corresponding to described normal display unit is determined according to second display screen image;
According to the color value determination abnormal image color value of each desired location of described 4th image, the color value according to each desired location of described 5th image determines described normal picture color value;
Judge that the primary colours whether described abnormal show unit is corresponding to second display screen image exist display extremely according to described abnormal image color value and described normal picture color value;
If so, then primary colours corresponding for described second display screen image are defined as described abnormal primary colours.
5. mosaic display screen color calibration method according to claim 1, is characterized in that, is taken described mosaic display screen by camera.
6. a mosaic display screen color calibration system, is characterized in that, comprising:
Taking module, when showing the second color range of described abnormal primary colours for the first color range of the abnormal primary colours of the normal display unit display abnormal show unit in mosaic display screen, described abnormal show unit, or after adjusting module carries out unique step adjustment to the second current color range, described mosaic display screen is taken, obtains the first image corresponding to described abnormal show unit and the second image corresponding to described normal display unit;
Image processing module, the image value for the multiple predeterminated positions according to described first image obtains abnormal show cell colors value, and obtains normal display unit color value according to the image value of multiple predeterminated positions of described second image;
Judge module, for judging described abnormal show cell colors value, whether the difference of described normal display unit color value be in setting range;
Described adjusting module, for when the result of determination of described judge module is no, carries out unique step adjustment to the second current color range;
Update module, for when the result of determination of described judge module is for being, is updated to the second current color range by the first color range in data group corresponding for described abnormal primary colours.
7. mosaic display screen color calibration system according to claim 6, is characterized in that, also comprise control module, wherein:
Described control module, for when satisfied setting moment calibration condition, or when receiving calibration command, each display unit controlling mosaic display screen shows each primary colours respectively;
Described taking module also for all taking described mosaic display screen when often showing primary colours, obtains each display image;
Described image processing module, also for determining that according to each described display image described abnormal show unit exists the abnormal primary colours of display deviation.
8. mosaic display screen color calibration system according to claim 6, is characterized in that, described image processing module comprises:
First acquiring unit, for when satisfied setting moment calibration condition, determine the color value of each desired location of the 3rd image that each display unit is corresponding according to the first display image, wherein, the first display image is any one display image;
First asks for unit, for determining the color of image value of the 3rd corresponding image respectively according to the color value of each desired location of each 3rd image;
First judging unit, for obtaining benchmark image color value, and judges whether according to each described color of image value and described benchmark image color value the display unit having display deviation respectively;
Primary colours corresponding for described first display image, for when the result of determination of the first judging unit is for being, by there being the display unit of display deviation to be defined as described abnormal show unit, are defined as described abnormal primary colours by the first determining unit.
9. mosaic display screen color calibration system according to claim 6, is characterized in that, described image processing module comprises:
Second acquisition unit, for when receiving calibration command, determine described abnormal show unit according to described calibration command, determine the color value of each desired location of the color value of each desired location of the 4th image that described abnormal show unit is corresponding and the 5th image corresponding to described normal display unit according to second display screen image;
Second asks for unit, and for the color value determination abnormal image color value of each desired location according to described 4th image, the color value according to each desired location of described 5th image determines described normal picture color value;
Second judging unit, for judging that according to described abnormal image color value and described normal picture color value the primary colours whether described abnormal show unit is corresponding to second display screen image exist display extremely;
Primary colours corresponding for described second display screen image, for when the result of determination of the second judging unit is for being, are defined as described abnormal primary colours by the second determining unit.
10. mosaic display screen color calibration system according to claim 6, is characterized in that, described taking module is taken described mosaic display screen by camera.
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