CN107613049A - A kind of projection mobile phone and method for controlling projection of adjustable projected background color - Google Patents
A kind of projection mobile phone and method for controlling projection of adjustable projected background color Download PDFInfo
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- CN107613049A CN107613049A CN201710772282.0A CN201710772282A CN107613049A CN 107613049 A CN107613049 A CN 107613049A CN 201710772282 A CN201710772282 A CN 201710772282A CN 107613049 A CN107613049 A CN 107613049A
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Abstract
The invention discloses a kind of projection mobile phone and method for controlling projection of adjustable projected background color, in the scheme, image during by acquired projections face without project content is used as light intensity reference picture to determine projected light intensity；And carry acquired projections face current display picture under the projection intensity of illumination of determination and be used as amendment reference picture；Then the pixel of background image is modified, then according to correction result, projected image handled.Using such scheme project, due in projection process, the pixel that the picture that indoor light intensity and projection when light detection module can combine the projection detected have reference colour needs to correct to projected background is modified, and the light intensity of projected image is adjusted, so that drop shadow effect reaches optimal.
Description
Technical field
The present invention relates to MultiMedia Field, and in particular to a kind of projection mobile phone of adjustable projected background color and projection control
Method processed.
Background technology
Projecting apparatus, also known as projector, be it is a kind of can be by the equipment on image or VIDEO PROJECTION to curtain, can be by not
The same computer of interface together, VCD, DVD, BD, game machine, DV etc., which are connected, plays corresponding vision signal.Projecting apparatus is wide at present
It is general to be applied to family, office, school and public place of entertainment, it is different according to working method, there are the different types such as CRT, LCD, DLP.
During the use of projector equipment, due to the places such as present family, newly developed company, school and market wall color increasingly
It is abundant so that when directly using metope as projected background in above-mentioned place, drop shadow effect is easily influenceed by metope volume.
Also there are some equipment in the prior art, repaiied by the image of collection site projected background so as to carry out background color
Just, but this equipment is often complicated, assembles and takes very much, also not readily portable.
Prior art has a kind of projected background color adjustment method, by pre-setting multiple metope face in this method
Color, the adjustment of projected background color is realized further according to the multiple wall colors pre-set, but due to pre-setting metope
Limitation in number of colors and the difference with actual wall color so that when making this method adjustment background color, reliably
Property is relatively low.
Also there are some integrated equipment in the prior art, but these equipment are often only suitable for the projection single to color
Background carries out color correct, and in the makeover process of color, its light intensity is fixed, in the projection nucleus of different light intensities
In border, it can not equally reach optimal drop shadow effect.
The content of the invention
It is an object of the invention to：For above-mentioned existing projector equipment, in different environments, its projected background can not be multi-party
Face is adjusted, so that projected image effect can not reach the problem of optimal, the present invention provides an adjustable projected background face
The projection mobile phone and method for controlling projection of color.
The technical solution adopted by the present invention is as follows：
A kind of projection mobile phone of adjustable projected background color, it is characterised in that including projection module, image acquisition device,
First image processor, the second image processor, light adjustment module；
The projection module is used for project content to perspective plane；Described image collector is thrown for acquired projections module
The perspective plane image of shadow content；Described image processor is used to handle the image that image acquisition device collects, so as to really
The color of its fixed each pixel；Second image processor, which is used to be generated according to the processing result image of the first image processor, to be thrown
Shadow image；Light adjustment module is used for the intensity for adjusting projection ray.
Further, the projection image acquisition module carries out IMAQ using camera.
A kind of method for controlling projection, comprises the following steps,
(1) system initialization, user carry out basic parameter setting to projection mobile phone；
(2) image when acquired projections face is without project content is as light intensity reference picture, and according to the light of collection
Intensity reference picture determines projected light intensity；
(3) reference colour content is projected to perspective plane according to the light intensity determined in step (2), acquired projections face is current
Show picture as amendment reference picture；
(4) each pixel of view field in reference picture will be corrected in step (3) to be contrasted with Standard Colors, it is determined that
Need the non-standard color pixel of progress color correct；
(5) color correct is carried out to non-standard color pixel described in step (4), obtains each non-standard color pixel
Correct color；
(6) revised color in step (5) is used to carry out color correct to the corresponding pixel of projected image, generation is thrown
Shadow background.
Further, the basic parameter of projection mobile phone sets the setting for including light intensity threshold series in step (1).
Further, the determination step of projected light intensity is in step (2)：
(21) projection ambient light intensity is judged according to luminous intensity reference picture；
(22) the projection ambient light intensity that step (21) determines is compared with the light intensity threshold value in step (1)
Compared with the light intensity threshold range where judging projection ambient light intensity sets the light intensity of output image.
Further, it is determined that the step of needing and carrying out the non-standard color pixel of color correct, is:
(41) obtain the perspective plane and correct reference picture as the color of each pixel；
(42) whether the color of each pixel and the reference colour are identical in judgment step (41) respectively, if not, really
The fixed pixel is non-standard pixel；Otherwise, it determines the pixel is official portrait vegetarian refreshments.
Further, the step of being modified to non-standard pixel be：
(51) using color of the non-standard color pixel in the perspective plane test pictures as the pixel
Background color；
(52) before color is as the pixel corresponding to the content that the acquisition non-standard color pixel will project
Scape color；
(53) changed according to the background color of the non-standard color pixel and foreground color to the colour atla pre-set
Amendment color of the best image color as the pixel corresponding to being found in table；The colour atla conversion table includes each background face
Best image color corresponding to color and foreground color.
In summary, by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
1. using such scheme project, because in projection process, light detection module can be combined and detected
Projection when indoor light intensity and the projection pixel that has the picture of reference colour and need to correct to projected background be modified,
And the light intensity of projected image is adjusted, so that drop shadow effect reaches optimal.
2. using the projection mobile phone of such scheme, due to its small volume, collecting IMAQ, image procossing, projection | light is adjusted
The function of section is in one so that the small volume of equipment, carries very convenient.
3. using the projection mobile phone of such scheme, due to the versatility of mobile phone, it may have power taking is convenient, installation is simple special
Point；
4. further, since mobile phone can project, it is only necessary to i.e. controllable projection process be operated to mobile phone, without extra
Control device, because projected image can be adjusted in itself for mobile phone, it is therefore not necessary to special projection screen.
Brief description of the drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein：
Fig. 1 is the structure chart of the present invention；
Fig. 2 is the flow chart of the present invention.
Embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine in any way.
The present invention is elaborated with reference to Fig. 1, Fig. 2.
A kind of projection mobile phone of adjustable projected background color, it is characterised in that including projection module, image acquisition device,
First image processor, the second image processor, light adjustment module；Projection module, image acquisition device, the first image procossing
Device, the second image processor, light adjustment module are prior art.
The projection module is used for project content to perspective plane；Described image collector is thrown for acquired projections module
The perspective plane image of shadow content；Described image processor is used to handle the image that image acquisition device collects, so as to really
The color of its fixed each pixel；Second image processor, which is used to be generated according to the processing result image of the first image processor, to be thrown
Shadow image；Light adjustment module is used for the intensity for adjusting projection ray.
Further, the projection image acquisition module carries out IMAQ using camera.
A kind of method for controlling projection, comprises the following steps,
(1) system initialization, user carry out basic parameter setting to projection mobile phone；
(2) image when acquired projections face is without project content is as light intensity reference picture, and according to the light of collection
Intensity reference picture determines projected light intensity；
(3) reference colour content is projected to perspective plane according to the light intensity determined in step (2), acquired projections face is current
Show picture as amendment reference picture；
(4) each pixel of view field in reference picture will be corrected in step (3) to be contrasted with Standard Colors, it is determined that
Need the non-standard color pixel of progress color correct；
(5) color correct is carried out to non-standard color pixel described in step (4), obtains each non-standard color pixel
Correct color；
(6) revised color in step (5) is used to carry out color correct to the corresponding pixel of projected image, generation is thrown
Shadow background.
Further, the basic parameter of projection mobile phone sets the setting for including light intensity threshold series in step (1).
Further, the determination step of projected light intensity is in step (2)：
(21) projection ambient light intensity is judged according to luminous intensity reference picture；
(22) the projection ambient light intensity that step (21) determines is compared with the light intensity threshold value in step (1)
Compared with the light intensity threshold range where judging projection ambient light intensity sets the light intensity of output image.
Further, it is determined that the step of needing and carrying out the non-standard color pixel of color correct, is:
(41) obtain the perspective plane and correct reference picture as the color of each pixel；
(42) whether the color of each pixel and the reference colour are identical in judgment step (41) respectively, if not, really
The fixed pixel is non-standard pixel；Otherwise, it determines the pixel is official portrait vegetarian refreshments.
Further, the step of being modified to non-standard pixel be：
(51) using color of the non-standard color pixel in the perspective plane test pictures as the pixel
Background color；
(52) before color is as the pixel corresponding to the content that the acquisition non-standard color pixel will project
Scape color；
(53) changed according to the background color of the non-standard color pixel and foreground color to the colour atla pre-set
Amendment color of the best image color as the pixel corresponding to being found in table；The colour atla conversion table includes each background face
Best image color corresponding to color and foreground color.
In this programme, its operation principle is：When starting, system is set, and system is initialized, sets light strong
Threshold series are spent, and corresponding projected light intensity in each threshold range is set.Collection adjustment projected light intensity is to optimal
When project Standard Colors image as amendment reference picture.Then to the pixel color and standard face on amendment reference picture
Color is contrasted, and color correct is carried out to the pixel of non-standard color, and projected image is carried out using revised pixel
Adjustment, it just can obtain the image of best projection effect.
Claims (7)
1. a kind of projection mobile phone of adjustable projected background color, it is characterised in that including projection module, image acquisition device,
One image processor, the second image processor, light adjustment module；
The projection module is used for project content to perspective plane；Described image collector projects interior for acquired projections module
The perspective plane image of appearance；Described image processor is used to handle the image that image acquisition device collects, so that it is determined that its
The color of each pixel；Second image processor is used to generate perspective view according to the processing result image of the first image processor
Picture；Light adjustment module is used for the intensity for adjusting projection ray.
A kind of 2. projection mobile phone of adjustable projected background color according to claim 1, it is characterised in that the projection
Image capture module carries out IMAQ using camera.
A kind of 3. method for controlling projection, it is characterised in that comprise the following steps,
(1) system initialization, user carry out basic parameter setting to projection mobile phone；
(2) image when acquired projections face is without project content is as light intensity reference picture, and according to the light intensity of collection
Reference picture determines projected light intensity；
(3) reference colour content is projected to perspective plane according to the light intensity determined in step (2), acquired projections face is currently shown
Picture is as amendment reference picture；
(4) each pixel of view field in reference picture will be corrected in step (3) to be contrasted with Standard Colors, it is determined that needing
Carry out the non-standard color pixel of color correct；
(5) color correct is carried out to non-standard color pixel described in step (4), obtains each non-standard color pixel amendment
Color；
(6) revised color in step (5) is used to carry out color correct, the generation projection back of the body to the corresponding pixel of projected image
Scape.
4. a kind of method for controlling projection according to claim 3, it is characterised in that projection mobile phone is basic in step (1)
Parameter setting includes the setting of light intensity threshold series.
A kind of 5. method for controlling projection according to claim 4, it is characterised in that projected light intensity in step (2)
Determine that step is：
(21) projection ambient light intensity is judged according to luminous intensity reference picture；
(22) the projection ambient light intensity for determining step (21) is sentenced compared with the light intensity threshold value in step (1)
Light intensity threshold range where disconnected projection ambient light intensity sets the light intensity of output image.
6. a kind of method for controlling projection according to claim 3, it is characterised in that it is determined that needing to carry out the non-of color correct
The step of Standard Colors pixel is:
(41) obtain the perspective plane and correct reference picture as the color of each pixel；
(42) whether the color of each pixel and the reference colour are identical in judgment step (41) respectively, if not, determining to be somebody's turn to do
Pixel is non-standard pixel；Otherwise, it determines the pixel is official portrait vegetarian refreshments.
7. a kind of method for controlling projection according to claim 1 or 6, it is characterised in that repaiied to non-standard pixel
Positive step is：
(51) background using color of the non-standard color pixel in the perspective plane test pictures as the pixel
Color；
(52) prospect face of the color as the pixel corresponding to the content that the non-standard color pixel will project is obtained
Color；
(53) according to the background color of the non-standard color pixel and foreground color into the colour atla conversion table pre-set
Amendment color of the best image color as the pixel corresponding to finding；The colour atla conversion table include each background color and
Best image color corresponding to foreground color.
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| CN201710772282.0A CN107613049A (en) | 2017-08-31 | 2017-08-31 | A kind of projection mobile phone and method for controlling projection of adjustable projected background color |
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| CN201710772282.0A CN107613049A (en) | 2017-08-31 | 2017-08-31 | A kind of projection mobile phone and method for controlling projection of adjustable projected background color |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109429047A (en) * | 2018-02-27 | 2019-03-05 | 孔德荣 | Method for controlling projection color of tablet personal computer |
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| CN1507281A (en) * | 2002-12-12 | 2004-06-23 | 全友电脑股份有限公司 | Projector color correction device and method |
| US20140307008A1 (en) * | 2013-04-16 | 2014-10-16 | Robert Bosch Gmbh | Image display unit, mobile phone and method |
| CN105245805A (en) * | 2015-09-06 | 2016-01-13 | 联想(北京)有限公司 | Projection method and electronic equipment |
| CN105825796A (en) * | 2015-01-08 | 2016-08-03 | 中兴通讯股份有限公司 | Projection control method, projection control device and projection device |
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2017
- 2017-08-31 CN CN201710772282.0A patent/CN107613049A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1507281A (en) * | 2002-12-12 | 2004-06-23 | 全友电脑股份有限公司 | Projector color correction device and method |
| US20140307008A1 (en) * | 2013-04-16 | 2014-10-16 | Robert Bosch Gmbh | Image display unit, mobile phone and method |
| CN105825796A (en) * | 2015-01-08 | 2016-08-03 | 中兴通讯股份有限公司 | Projection control method, projection control device and projection device |
| CN105245805A (en) * | 2015-09-06 | 2016-01-13 | 联想(北京)有限公司 | Projection method and electronic equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109429047A (en) * | 2018-02-27 | 2019-03-05 | 孔德荣 | Method for controlling projection color of tablet personal computer |
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