CN113347399B - Borderless projection control method - Google Patents
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- CN113347399B CN113347399B CN202110637634.8A CN202110637634A CN113347399B CN 113347399 B CN113347399 B CN 113347399B CN 202110637634 A CN202110637634 A CN 202110637634A CN 113347399 B CN113347399 B CN 113347399B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
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Abstract
The invention discloses a borderless projection control method, relates to the technical projection field, and is used for solving the problem that an actual image projected onto a background wall by a projector in the related art has an obvious boundary relative to the background wall. The method comprises the following steps: controlling a camera to shoot a background wall to obtain a reference picture, extracting the color of the background wall in the reference picture and recording the color as a reference color; extending a purity range and a lightness range based on the reference purity and the reference lightness, respectively; acquiring projection pictures meeting the conditions and recording the projection pictures as pictures to be processed; for any picture to be processed, putting the picture to be processed on a background wall, controlling a camera to shoot the background wall to obtain a picture to be processed, extracting the background color of the picture to be processed and the color of the background wall in the picture to be processed, respectively recording the background color and the color of the background wall as a first target color and a second target color, and calculating the difference between the first target color and the corresponding second target color; and selecting the picture to be processed with the minimum difference as the final projection picture.
Description
Technical Field
The invention relates to the technical field of projection, in particular to a borderless projection control method.
Background
A projector is a device that can project contents such as images and videos onto a background wall, and can be connected to a computer, a DV, or the like through various interfaces to play corresponding contents, and thus, it is widely used in homes, offices, schools, and entertainment venues, etc.
In the related art, the projection picture can be projected on the background wall through the projector to obtain a corresponding actual image, and in order to make the projection picture be sufficiently projected on the background wall, the size of the actual image is usually smaller than that of the background wall, so that the actual image has an obvious boundary relative to the background wall, and the boundary attracts the sight of the user to a certain extent, thereby affecting the appearance.
At present, no effective solution is provided for the problem in the related art that an actual image projected onto a background wall through a projector has an obvious boundary relative to the background wall.
Disclosure of Invention
The embodiment of the application provides a borderless projection control method, which enables the background color in an actual image to be closer to the color of a background wall, so that the border of the actual image relative to the background wall is weakened, and the user impression is improved.
The embodiment of the application provides a borderless type projection control method, which records an original background color of a projection picture as a first original color, wherein the first original color comprises a first original color phase, a first original purity and a first original brightness, the content of each projection picture is the same, and the first original color is different, and the method comprises the following steps:
controlling a camera to shoot a background wall to obtain a reference picture, extracting the color of the background wall in the reference picture and recording the color as a reference color, wherein the reference color comprises a reference hue, a reference purity and a reference lightness;
extending a purity range and a lightness range based on the reference purity and the reference lightness, respectively;
acquiring projection pictures of which the first primary color phase is the same as the reference color phase, the first primary purity falls in the purity range, and the first primary brightness falls in the brightness range, and recording the projection pictures as pictures to be processed;
for any picture to be processed, putting the picture to be processed on the background wall, controlling the camera to shoot the background wall to obtain a picture to be processed, extracting the background color of the picture to be processed and the color of the background wall in the picture to be processed, respectively recording the background color and the color of the background wall as a first target color and a second target color, and calculating the difference between the first target color and the second target color;
and selecting the picture to be processed with the minimum difference as a final projection picture for executing the release task.
In some embodiments, for any of the paintings to be processed, the method further comprises:
controlling a distance measuring device to obtain the distance between the background wall and the projection lens, and recording the distance as a working distance;
determining the boundary of the picture to be processed on the background wall based on the working distance and the projection focusing rule, and extending a preset distance outwards from the boundary to obtain a sampling region;
and recording an area corresponding to the sampling area in the photo to be processed as a sampling area, wherein the second target color is extracted from the sampling area.
In some embodiments, on the background wall, the boundary of the background wall surrounds the sampling region, and the preset distance ranges from 5cm to 35cm.
In some embodiments, for any painting to be processed, the method further comprises:
recording an area from the boundary of the picture to be processed to the boundary of the background wall in the picture to be processed as an undetermined area based on the reference picture and the picture to be processed;
and shrinking the undetermined area towards the inside of the undetermined area to obtain a sampling area, wherein the second target color is extracted from the sampling area.
In some embodiments, the to-be-processed pictures are arranged according to the first original purity and the first original brightness, and the to-be-processed pictures are sequentially placed on the background wall according to an arrangement sequence.
In some embodiments, the arranging the to-be-processed picture according to the first original purity and the first original brightness comprises: and sequencing the paintings to be processed according to the first original brightness, and arranging the paintings to be processed with the same first original brightness according to the first original purity.
In some embodiments, in a case that the first original purity or the first original brightness of each to-be-processed drawing is the same, the method further includes, for any to-be-processed drawing;
and judging whether the monotonicity of the difference is changed, if so, stopping processing the next picture to be processed according to the arrangement sequence, executing the selected picture to be processed with the minimum difference as a final projection picture for executing the release task, and if not, continuing processing the next picture to be processed according to the arrangement sequence.
In some embodiments, for any of the paintings to be processed, the first target color comprises a first target hue and the second target color comprises a second target hue, the method further comprising:
judging whether the first target hue is the same as the second target hue, if so, continuing to process the picture to be processed, otherwise, stopping processing the picture to be processed, and executing an adjusting step;
the adjusting step comprises: and estimating the original color of the background wall based on the first original color, the first target color and the second target color, marking as a second estimated color, and replacing the reference color with the second estimated color.
In some of these embodiments, the purity range and the brightness range corresponding to the adjusted reference color are greater than the purity range and the brightness range corresponding to the reference color before adjustment, respectively.
Compared with the related art, the invention has the beneficial effects that: the method comprises the steps of shooting a background wall through a camera to obtain a reference picture, determining reference colors through the reference picture, then putting a plurality of pictures to be processed with first original colors identical or similar to the reference colors, selecting the pictures to be processed with first target colors closest to second target colors as final projection pictures, and accordingly, in a real scene, putting the final projection pictures to the background wall through a projector to obtain an actual image, wherein the background colors of the actual image are closer to the colors of the background wall, so that the boundary of the actual image relative to the background wall is weakened, and the visual sense of a user is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a flow chart of a borderless projection control method according to an embodiment of the present application;
FIG. 2 is a flow chart of the sampling region determination step shown in the embodiment of the present application;
FIG. 3 is a flowchart of another implementation of the sampling region determining step shown in the embodiment of the present application;
FIG. 4 is a schematic view of a background wall with a painting to be processed released according to an embodiment of the present application;
FIG. 5 is a schematic illustration of a reference photograph shown in an embodiment of the present application;
fig. 6 is a schematic diagram of a photo to be processed according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments provided in the present application without any inventive step are within the scope of protection of the present application. Moreover, it should be appreciated that such a development effort might be complex and tedious, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, given the benefit of this disclosure, without departing from the scope of this disclosure.
Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the specification. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of ordinary skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments without conflict.
The embodiment provides a borderless projection control method, which aims at the problem that an actual image projected onto a background wall through a projector in the related art has a distinct boundary relative to the background wall.
Fig. 1 is a flowchart of a borderless projection control method according to an embodiment of the present application, and fig. 4 is a schematic diagram of a background wall to which a picture to be processed is released according to an embodiment of the present application; FIG. 5 is a schematic illustration of a reference photograph shown in an embodiment of the present application; fig. 6 is a schematic diagram of a photo to be processed according to an embodiment of the present application.
Referring to fig. 1, 4 to 6, the method includes steps S101 to S105. It should be noted that, before step S101 is executed, the original background color of the projection picture is first recorded as a first original color, where the first original color includes a first original color phase, a first original purity, and a first original brightness, and the content of each projection picture is the same and the first original color is different.
Step S101, controlling a camera to shoot a background wall to obtain a reference picture, extracting colors of the background wall in the reference picture and recording the colors as reference colors, wherein the reference colors comprise a reference hue, a reference purity and a reference lightness.
Step S102, expanding the purity range and the lightness range based on the reference purity and the reference lightness, respectively.
Step S103, acquiring projection pictures with the first primary color phase being the same as the reference color phase, the first original purity falling within the purity range and the first original brightness falling within the brightness range, and marking the projection pictures as pictures to be processed.
For any picture to be processed, step S104 is performed. The step S104 may include steps S1041 to S1043.
And step S1041, putting the picture to be processed on a background wall.
Step S1042, controlling the camera to shoot the background wall to obtain a photo to be processed, extracting the background color of the photo to be processed and the color of the background wall in the photo to be processed, and recording the background color and the color of the background wall as a first target color and a second target color respectively.
And step S1043, calculating the difference degree between the first target color and the second target color.
And S105, selecting the picture to be processed with the minimum difference as a final projection picture for executing the putting task.
It is worth mentioning that the steps of the method may be performed on the basis of an execution device. Specifically, the execution device may be a server, a cloud server, a client, a processor, or the like, and the execution device is not limited to the above type, but the execution device should be communicatively connected to the camera and the projector.
In conclusion, a reference picture is obtained by shooting a background wall through a camera, a reference color is determined through the reference picture, then a plurality of pictures to be processed with the first original color being the same as or similar to the reference color are thrown in, and the pictures to be processed with the first target color closest to the second target color are selected as final projection pictures.
As an alternative embodiment, for step S101, the camera may be independent from the projector, and may be carried by the projector itself, and the color extraction manner may refer to the related art, which is not limited herein. It is understood that the reference picture is a picture of a background wall taken in an un-projected state, and the color of the background wall may be referred to as a second primary color, where the second primary color includes a second primary color phase, a second primary purity and a second primary brightness, and the reference color is not identical to the second primary color due to environmental influences, but is very close to the second primary color.
As an alternative embodiment, for step S102, the length of the purity range and the brightness range is not limited herein, and may be adjusted according to actual situations, but the purity range should include the reference purity, and the brightness range should include the reference brightness. Preferably, the reference purity is located at a center position of the purity range, and the reference lightness is located at a center position of the lightness range.
As an alternative embodiment, for step S103, all the projection pictures are preset, and accordingly, the projection pictures of the same first original color phase should have distributions on all the levels of the first original purity and all the levels of the second original brightness, and accordingly, a certain number of pictures to be processed can be obtained by setting the brightness range and the purity range. It should be noted that, since the second original color of the background wall is usually white, a relatively large number of projection pictures can be set in the second original color of white.
As an alternative embodiment, for step S1041, the to-be-processed picture is projected onto the background wall via the projector, and accordingly, a corresponding actual image may be obtained on the background wall, where the actual image has a boundary with respect to the background wall. In step S101, the time interval from the completion of the shooting of the reference picture to the completion of the release of the first to-be-processed picture is short, and the time interval from the completion of the release of the adjacent to-be-processed picture is also short, and can be completed within 5S, respectively, so that the reference picture and each of the to-be-processed pictures can be regarded as being in the same environment.
As an alternative embodiment, step S1042 may refer to the related description of step S101, wherein the first target color includes a first target hue, a first target purity, and a first target brightness, and the second target color includes a second target hue, a second target purity, and a second target brightness.
The calculation method of the difference between the first target color and the second target color is not limited herein, and related prior art may be used. For example: using a formula for calculating the color difference value, wherein the formula is
And are not specifically explained herein. Another example is: and presetting a color bar, wherein the color bar is a color gradual change of the same hue, namely if the distance between two colors on the color bar is shorter, the boundary between the two colors is less obvious, so that the distance between the first target color and the second target color on the color bar can be determined, and the distance can be used as the difference.
As an alternative embodiment, step S104 may further include a sampling region determining step, which should be performed after step S1041 and before the first target color and the second target color are extracted in step S1042. Fig. 2 is a flowchart of a sampling area determining step in an embodiment of the present application, and referring to fig. 2 and fig. 4 to fig. 6, the sampling area determining step may include step S201 to step S203.
Step S201, controlling the distance measuring device to obtain the distance between the background wall and the projection lens, and recording the distance as the working distance. The distance measuring device is in communication connection with the execution equipment, can be a laser distance meter or an infrared distance meter, can be independent of the projector, and can also be installed on the projector.
Step S202, determining the boundary of the picture to be processed on the background wall based on the working distance and the projection focusing rule, and extending a preset distance outwards from the boundary to obtain a sampling area. It is to be understood that the projection focusing rules are not limited herein, as long as the actual image on the background wall is clear.
It should be noted that, on the background wall, the boundary of the painting to be processed is the boundary of the actual image, and the size of the boundary can be inferred, which will be described in the following two cases. Firstly, the boundary size of the actual image is kept unchanged, and the size of the obtained sampling region is also kept unchanged, so that the sampling region can be in the background wall with high probability under the condition; in addition, if the boundary size of the actual image changes with the working distance, the size of the sampling region is also changed with the working region, so that the sampling region is more likely to be in the background wall, in this case, the sampling region determining step should be increased: and judging whether the size of the sampling area is smaller than that of the background wall, if so, continuing to execute the step S203, and if not, stopping executing the method.
Step S203, recording an area corresponding to the sampling area in the photo to be processed as a sampling area, wherein the second target color is extracted from the sampling area. It can be understood that the size of the actual image, the working distance, the preset distance, the parameters of the camera, and the size of the picture to be processed are all known, and then the sampling area in the picture to be processed can be determined through calculation, and then the second target color is extracted.
It should be noted that, since the style of the to-be-processed picture is known, in the to-be-processed picture, the background region of the to-be-processed picture can be determined through step S203, and the first target color is extracted from the background region.
Through the technical scheme, even if the relative positions of the camera, the projector and the background wall are changed, the extraction region of the first target color and the extraction region of the second target color can still be determined, namely, the technical scheme has small limitation and high accuracy.
Furthermore, on the background wall, the boundary of the background wall surrounds the sampling area, and the value range of the preset distance is 5 cm-35 cm, and the value range can be specifically adjusted according to the actual situation.
As an alternative embodiment, the sampling region determining step may also be implemented in another way, and of course, the sampling region determining step should also be performed after step S1041 and before the first target color and the second target color are extracted in step S1042. Fig. 3 is a flowchart of another implementation manner of the sampling area determining step shown in the embodiment of the present application, and referring to fig. 3 and fig. 4 to fig. 6, the sampling area determining step may include step S301 to step S302.
Step S301, recording the area from the boundary of the picture to be processed to the boundary of the background wall in the picture to be processed as an undetermined area based on the reference picture and the picture to be processed.
It should be noted that, in step S101, the background wall boundary in the reference photo may be determined, specifically, by identifying the corner feature, and the corresponding operation is not limited herein. The photo to be processed is more than the reference photo, so that the photo to be processed can be determined by comparing the two photos. The pending area is an area formed by the boundary of the painting to be processed in the photo to be processed and the boundary of the background wall.
Step S302, the undetermined area is shrunk towards the interior of the undetermined area to obtain a sampling area, wherein the second target color is extracted from the sampling area. The sampling area can be 60% -90% of the pending area. It should be noted that shrinking the to-be-determined region can avoid inaccuracy of the second target color when the sampling point of the second target color falls on the boundary of the to-be-determined region.
According to the technical scheme, only image recognition is carried out on the reference picture and the picture to be processed, corresponding parameters do not need to be measured or obtained, the operation is simple, the accuracy of a sampling area is high, and the relative positions of the camera, the projector and the background wall need to be kept unchanged as far as possible.
As an alternative embodiment, in the sampling region, the execution device may extract the colors of a plurality of second sampling points, and then determine the hue, the saturation average, and the brightness average to obtain the second target color. Wherein the second sampling points may be uniformly distributed along a circumferential direction of the sampling region. It is to be understood that the first target color may be obtained with reference to the present solution. By the technical scheme, the accuracy of the first target color and the second target color can be improved.
As an alternative embodiment, a plurality of to-be-processed slices may be obtained in step S103 to form a to-be-processed slice group. In the group of pictures to be processed, the pictures to be processed are arranged according to the first original purity and the first original brightness, and the pictures to be processed sequentially execute the step S104 according to the arrangement sequence. In the case of determining the arrangement order, step S104 may be made to proceed in order.
Further, the arranging the to-be-processed picture pieces according to the first original purity and the first original brightness may include: and sorting the to-be-processed picture according to the first original brightness, and arranging the to-be-processed pictures with the same first original brightness according to the first original purity.
Of course, the arrangement of the to-be-processed picture pieces according to the first original purity and the first original brightness may also include: and sorting the paintings to be processed according to the first original purity, and arranging the paintings to be processed with the same first original brightness according to the first original brightness.
Further, in the case where the first original purities or the first original lightness are the same for each of the paintings to be processed, step S104 may further include a monotonicity determination step, which is performed after step S1043, and the monotonicity determination step may include the following steps.
Judging whether the monotonicity of the difference degree is changed, if so, stopping processing the next picture to be processed according to the arrangement sequence, and directly executing the step S105; if not, the next picture to be processed is continuously processed according to the arrangement sequence.
The case that the first purities of the respective to-be-processed pictures are the same is exemplified, in the to-be-processed picture group, the to-be-processed pictures are arranged from large to small or from small to large according to the first original brightness, if the final projection picture is located between the second to-be-processed picture and the penultimate to-be-processed picture, the differences are both reduced and then increased, and the to-be-processed picture with the minimum difference is the final projection picture, therefore, the step S104 can be directly stopped under the condition that the monotonicity of the differences is changed, and the step S105 is executed to determine the final projection picture, so that the number of the to-be-processed pictures executed in the step S104 can be reduced, and the overall processing efficiency of the method can be improved.
As an alternative embodiment, step S104 may further include a hue determining step, which may be performed after the first target color and the second target color are extracted in step S1042, or after step S1043, and the hue determining step may include the following steps.
And judging whether the first target color phase is the same as the second target color phase, if so, continuing to process the picture to be processed, otherwise, stopping processing the picture to be processed, and executing an adjusting step. It should be noted that, in general, when the background wall is in a white light environment, the second target hue and the reference hue are the same as the first original hue; when the background wall is in a colored light environment, the second target hue and the reference hue are different from the first original hue, and the requirement condition of the picture to be processed obtained according to the reference color is inaccurate, so that the requirement condition of the picture to be processed can be better determined only by re-determining the reference color.
The adjusting step comprises: and estimating the original color of the background wall based on the first original color, the first target color and the second target color, recording as a second estimated color, and replacing the reference color with the second estimated color. When the background wall is in a colored light environment, the first primary color + colored light + camera shooting influence → the first target color, the second primary color + colored light + camera shooting influence → the second target color, the second estimated color is obtained through calculation and is close to the second primary color, the specific calculation mode of the second estimated color is not limited, and machine learning can be adopted.
It should be noted that, after replacing the reference color with the second estimated color, the step S102 and the subsequent steps may be executed again. Through the technical scheme, the influence caused by the environment of colored light can be reduced, and the borderless effect between the background wall and the actual image is improved.
Further, the purity range and the brightness range corresponding to the reference color after adjustment are larger than the purity range and the brightness range corresponding to the reference color before adjustment, respectively. It should be noted that, for the second estimated color, the second estimated color includes a second estimated hue, a second estimated purity, and a second estimated lightness, and the second estimated hue and the second original hue should be the same, but the second estimated purity and the second original purity, and the second estimated lightness and the second original lightness may be different. In order to ensure that the picture to be processed with the first target color most fitting the second target color can be found, the purity range and the brightness range are enlarged, and therefore the accuracy of the final projection picture is improved.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include non-volatile and/or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink), DRAM (SLDRAM), rambus (Rambus) direct RAM (RDRAM), direct bused dynamic RAM (DRDRAM), and bused dynamic RAM (RDRAM).
Unless defined otherwise, technical or scientific terms referred to herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which this application belongs. Reference to "a," "an," "the," and similar words throughout this application are not to be construed as limiting in number, and may refer to the singular or the plural. The terms "comprises," "comprising," "including," "has," "having," and any variations thereof, as referred to herein, are intended to cover a non-exclusive inclusion. Reference to "connected," "coupled," and the like in this application is not intended to be limited to physical or mechanical connections, but rather can include electrical connections, whether direct or indirect. The term "plurality" as used herein means two or more. "and/or" describe the association relationship of the associated objects, meaning that three relationships may exist. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. Reference herein to the terms "first," "second," "third," and the like, are merely to distinguish similar objects and do not denote a particular ordering for the objects.
The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, and these are all within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. A borderless projection control method is characterized in that an original background color of a projection picture is recorded as a first original color, the first original color comprises a first original color phase, a first original purity and a first original brightness, the content of each projection picture is the same, and the first original color is different, the method comprises the following steps:
controlling a camera to shoot a background wall to obtain a reference picture, extracting the color of the background wall in the reference picture and recording the color as a reference color, wherein the reference color comprises a reference hue, a reference purity and a reference lightness;
extending a purity range and a lightness range based on the reference purity and the reference lightness, respectively;
acquiring projection pictures of which the first primary color phase is the same as the reference color phase, the first primary purity falls in the purity range and the first primary brightness falls in the brightness range, and recording the projection pictures as pictures to be processed;
for any picture to be processed, putting the picture to be processed on the background wall, controlling the camera to shoot the background wall to obtain a picture to be processed, extracting the background color of the picture to be processed and the color of the background wall in the picture to be processed and recording the background color and the color as a first target color and a second target color respectively,
the first target color comprises a first target hue and the second target color comprises a second target hue; judging whether the first target hue is the same as the second target hue,
if not, stopping processing the to-be-processed picture, and executing an adjusting step; the adjusting step includes: estimating the original color of the background wall based on the first original color, the first target color and the second target color, recording as a second estimated color, and replacing the reference color with the second estimated color,
if yes, continuously calculating the difference degree between the first target color and the second target color;
and selecting the picture to be processed with the minimum difference as a final projection picture for executing the release task.
2. The method of claim 1, wherein for any picture to be processed, the method further comprises:
controlling a distance measuring device to obtain the distance between the background wall and the projection lens, and recording the distance as a working distance;
determining the boundary of the picture to be processed on the background wall based on the working distance and the projection focusing rule, and extending a preset distance outwards from the boundary to obtain a sampling area;
and recording an area corresponding to the sampling area in the photo to be processed as a sampling area, wherein the second target color is extracted from the sampling area.
3. The method according to claim 2, wherein the boundary of the background wall surrounds the sampling area on the background wall, and the preset distance has a value ranging from 5cm to 35cm.
4. The method of claim 1, wherein for any picture to be processed, the method further comprises:
recording an area from the boundary of the picture to be processed to the boundary of the background wall in the picture to be processed as an undetermined area based on the reference picture and the picture to be processed;
and shrinking the undetermined area towards the inside of the undetermined area to obtain a sampling area, wherein the second target color is extracted from the sampling area.
5. The method according to any one of claims 1 to 4, wherein the paintings to be processed are arranged according to the first original purity and the first original brightness, and the paintings to be processed are sequentially placed on the background wall according to an arrangement sequence.
6. The method of claim 5, wherein the arranging of the to-be-processed sketches according to the first original purity and the first original brightness comprises: and sequencing the to-be-processed picture according to the first original brightness, and arranging the to-be-processed pictures with the same first original brightness according to the first original purity.
7. The method according to claim 6, wherein in case the first original purity or the first original brightness of each picture to be processed is the same, the method further comprises, for any picture to be processed;
and judging whether the monotonicity of the difference is changed, if so, stopping processing the next picture to be processed according to the arrangement sequence, executing the selected picture to be processed with the minimum difference as a final projection picture for executing the release task, and if not, continuing processing the next picture to be processed according to the arrangement sequence.
8. The method of claim 1, wherein the purity range and the brightness range corresponding to the adjusted reference color are greater than the purity range and the brightness range corresponding to the reference color before adjustment, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110637634.8A CN113347399B (en) | 2021-06-08 | 2021-06-08 | Borderless projection control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110637634.8A CN113347399B (en) | 2021-06-08 | 2021-06-08 | Borderless projection control method |
Publications (2)
| Publication Number | Publication Date |
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| CN113347399A CN113347399A (en) | 2021-09-03 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007087816A (en) * | 2005-09-22 | 2007-04-05 | Sharp Corp | Lighting system |
| CN101650520A (en) * | 2008-08-15 | 2010-02-17 | 索尼爱立信移动通讯有限公司 | Visual laser touchpad of mobile telephone and method thereof |
| JP2010119017A (en) * | 2008-11-14 | 2010-05-27 | Sony Ericsson Mobilecommunications Japan Inc | Front projection video display device, projection image correction method, and projection image correction program |
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| JPH05197021A (en) * | 1992-01-17 | 1993-08-06 | Nec Corp | Screen for projector, projection method for projector and projector |
| JP4776055B2 (en) * | 2000-03-06 | 2011-09-21 | ガリストロフ ソフトウェア エルエルシー | Image adjustment system device |
| US6945663B2 (en) * | 2002-06-14 | 2005-09-20 | Tseng-Lu Chien | Tubular electro-luminescent light incorporated with device(s) |
| CN103777438A (en) * | 2012-10-19 | 2014-05-07 | 国基电子（上海）有限公司 | Mobile terminal with miniature projector and projection method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007087816A (en) * | 2005-09-22 | 2007-04-05 | Sharp Corp | Lighting system |
| CN101650520A (en) * | 2008-08-15 | 2010-02-17 | 索尼爱立信移动通讯有限公司 | Visual laser touchpad of mobile telephone and method thereof |
| JP2010119017A (en) * | 2008-11-14 | 2010-05-27 | Sony Ericsson Mobilecommunications Japan Inc | Front projection video display device, projection image correction method, and projection image correction program |
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