WO2023045118A1 - 投影仪亮度调节方法、设备、介质及计算机程序产品 - Google Patents
投影仪亮度调节方法、设备、介质及计算机程序产品 Download PDFInfo
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- 238000004590 computer program Methods 0.000 title claims abstract description 18
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- 238000004364 calculation method Methods 0.000 description 9
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- H—ELECTRICITY
- 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]
- H04N9/3141—Constructional details thereof
- H04N9/315—Modulator illumination systems
- H04N9/3155—Modulator illumination systems for controlling the light source
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- the present application relates to the field of projection technology, and in particular to a method, device, medium and computer program product for adjusting brightness of a projector.
- the projector When the projector is projecting on non-parallel planes, if the projection lamps use the same brightness for projection, because the distance between the projection lamp and the projection point is different, the brightness display of the projected content on the non-parallel planes will be different, which will affect the user's perception of the projected content.
- the main purpose of the present application is to provide a method, device, medium and computer program product for adjusting brightness of a projector, aiming at solving the technical problem of different brightness display of projected content on non-parallel planes when the projector is performing projection.
- an embodiment of the present application provides a method for adjusting brightness of a projector, and the method for adjusting brightness of a projector includes:
- the brightness of each display area of the projection content is adjusted according to the brightness adjustment information, so that the display effect of the projection content in each of the display areas is consistent.
- the step of determining the zoom factor information of the projected content in the projected image includes:
- the step of determining the scaling factor information of the projected content according to the width information includes:
- Each width in the width information is respectively subjected to a preset operation with the reference width to obtain a plurality of scaling factors and form scaling factor information of the projected content.
- the step of determining the brightness adjustment information of the projected content according to the scaling factor information :
- the first target display brightness of each of the display areas is respectively determined, and the brightness adjustment information of the projected content is formed based on each of the first target display brightness.
- the step of adjusting the brightness of each display area of the projected content according to the brightness adjustment information includes:
- the brightness of each display area of the projection content is adjusted according to the brightness adjustment information.
- the step of comparing each of the projection distances with the preset projection distance range it further includes:
- the display area corresponding to the target projection distance is not projected
- the projector brightness adjustment method includes:
- the brightness of the shielded area of the projected content is adjusted according to the second target display brightness.
- the present application also provides a projector brightness adjustment device, the projector brightness adjustment device includes a memory, a processor, and a projector stored in the memory and operable on the processor.
- a projector brightness adjustment program when the projector brightness adjustment program is executed by the processor, implements the above-mentioned steps of the projector brightness adjustment method.
- the present application also provides a medium, the medium is a computer-readable storage medium, on which a projector brightness adjustment program is stored, and when the projector brightness adjustment program is executed by a processor, the above-mentioned The steps of the projector brightness adjustment method.
- the present application also provides a computer program product, including a computer program, and when the computer program is executed by a processor, the steps of the above method for adjusting brightness of a projector are realized.
- Embodiments of the present application provide a method, device, medium, and computer program product for adjusting the brightness of a projector.
- the projection image of the projection area is obtained, and the scaling factor information of the projection content in the projection image is determined; and the scaling factor information is determined according to the scaling factor information.
- Brightness adjustment information of the projection content according to the brightness adjustment information, the brightness of each display area of the projection content is adjusted, so that the display effect of the projection content in each of the display areas is consistent.
- the present application takes a projected image of the projected area and determines the scaling factor information of the projected content in the projected image, and finally adjusts the brightness of the projected content by adjusting the brightness adjustment information determined by the scaling factor information.
- the display effect of the projected content in each display area in the projected area is consistent, and the brightness of the projected content watched by the user is further smoothed, which is beneficial to improving the user's perception of the projected content.
- FIG. 1 is a schematic structural diagram of a hardware operating environment involved in an embodiment of a method for adjusting brightness of a projector according to the present application;
- FIG. 2 is a schematic flowchart of a first embodiment of a method for adjusting brightness of a projector according to the present application
- FIG. 3 is a schematic diagram of a scene in the first embodiment of the projector brightness adjustment method of the present application
- FIG. 4 is a schematic flowchart of a second embodiment of a method for adjusting brightness of a projector according to the present application
- FIG. 5 is a schematic flowchart of a third embodiment of a method for adjusting brightness of a projector according to the present application
- FIG. 6 is a schematic flowchart of a fourth embodiment of a method for adjusting brightness of a projector according to the present application.
- Embodiments of the present application provide a method, device, medium, and computer program product for adjusting the brightness of a projector.
- the projection image of the projection area is obtained, and the scaling factor information of the projection content in the projection image is determined; and the scaling factor information is determined according to the scaling factor information.
- Brightness adjustment information of the projection content according to the brightness adjustment information, the brightness of each display area of the projection content is adjusted, so that the display effect of the projection content in each of the display areas is consistent.
- the present application takes a projected image of the projected area and determines the scaling factor information of the projected content in the projected image, and finally adjusts the brightness of the projected content by adjusting the brightness adjustment information determined by the scaling factor information.
- the display effect of the projected content in each display area in the projected area is consistent, and the brightness of the projected content watched by the user is further smoothed, which is beneficial to improving the user's perception of the projected content.
- FIG. 1 is a schematic structural diagram of a projector brightness adjustment device in a hardware operating environment involved in the solution of the embodiment of the present application.
- the projector brightness adjustment device in this embodiment of the present application may be a PC, or may be a portable terminal device such as a tablet computer or a portable computer.
- the projector brightness adjustment device may include: a processor 1001 , such as a CPU, a network interface 1004 , a user interface 1003 , a memory 1005 , and a communication bus 1002 .
- the communication bus 1002 is used to realize connection and communication between these components.
- the user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface.
- the network interface 1004 may include a standard wired interface and a wireless interface (such as a WI-FI interface).
- the memory 1005 can be a high-speed RAM memory, or a stable memory (non-volatile memory), such as a disk memory.
- the memory 1005 may also be a storage device independent of the aforementioned processor 1001 .
- FIG. 1 does not constitute a limitation on the projector brightness adjustment device, and may include more or less components than those shown in the figure, or combine certain components, or different component arrangements.
- the memory 1005 as a storage medium may include an operating system, a network communication module, a user interface module, and a projector brightness adjustment program.
- the network interface 1004 is mainly used to connect the background server and carry out data communication with the background server;
- the user interface 1003 is mainly used to connect the client (client) and carry out data communication with the client;
- the processor 1001 can be used to call the projector brightness adjustment program stored in memory 1005, and perform the following operations:
- the brightness of each display area of the projection content is adjusted according to the brightness adjustment information, so that the display effect of the projection content in each of the display areas is consistent.
- the step of determining the zoom factor information of the projected content in the projected image includes:
- the step of determining the zoom factor information of the projected content according to the width information includes:
- Each width in the width information is respectively subjected to a preset operation with the reference width to obtain a plurality of scaling factors and form scaling factor information of the projected content.
- step of determining the brightness adjustment information of the projected content according to the scaling factor information :
- the first target display brightness of each of the display areas is respectively determined, and the brightness adjustment information of the projected content is formed based on each of the first target display brightness.
- the step of adjusting the brightness of each display area of the projected content according to the brightness adjustment information includes:
- the brightness of each display area of the projection content is adjusted according to the brightness adjustment information.
- the processor 1001 can be used to call the projector brightness adjustment program stored in the memory 1005, and perform the following operations:
- the display area corresponding to the target projection distance is not projected
- the projector brightness adjustment method includes:
- the brightness of the shielded area of the projected content is adjusted according to the second target display brightness.
- the first embodiment of the present application provides a schematic flowchart of a method for adjusting brightness of a projector.
- the projector brightness adjustment method includes the following steps:
- Step S10 acquiring the projection image of the projection area, and determining the zoom factor information of the projection content in the projection image;
- the projector brightness adjustment method is applied to the projector brightness adjustment system.
- the projector brightness adjustment system can be applied to smart devices such as projectors and smart speakers.
- the projector adjustment system includes a projection lamp and a camera, and the projection lamp is used to treat The projection content is used for projection.
- the projection lamp may be a fixed-focus projection lamp.
- the camera is used to obtain a projection image containing the projection content in the projection area.
- the camera may be a depth camera.
- the projector adjustment system also includes a data processing module, which can process the projection image acquired by the camera to determine the brightness adjustment information of the projection content, and adjust the brightness of each display area of the projection content according to the brightness adjustment information, so that the projection content can be displayed in each The display effect of the display area is consistent. Understandably, for the convenience of description, the projector brightness adjustment system will be referred to as the system for short in the following.
- the system invokes the camera to capture an image of the projection area through the camera, thereby obtaining a projection image including the projection content.
- the system needs to identify the projected image to determine whether the brightness of the projected content needs to be adjusted. It can be understood that if the projected content is on the same parallel plane as the projected area, the scaling ratio of each display area of the projected content in the projected image is the same. The display effect of the projected content in each display area is the same, that is, the user sees that the brightness of the projected content in each display area is consistent, and there is no need to adjust the brightness of the projected content at this time.
- Fig. 3 is a schematic diagram of the scene in the first embodiment of the projector brightness adjustment method of the present application.
- this application obtains the projection image of the projection area through the camera, and scans the projection content in the projection image through the data processing module, and determines the scaling factor information of the projection content according to the width information of the scanned projection content, which is convenient for subsequent zooming.
- the coefficient information respectively determines the brightness of each display area of the projection content to obtain the brightness adjustment information, and then adjusts the brightness of each display area of the projection content through the brightness adjustment information, so that the display effect of the projection content in each display area in the projection area is consistent, and further makes The brightness of the projected content viewed by the user is relatively smooth, which is beneficial to improve the user's perception of the projected content.
- the step of determining the zoom factor information of the projected content in the projected image includes:
- Step S11 scanning the projection content in the projection image to obtain width information of the projection content
- Step S12 determining scaling factor information of the projected content according to the width information.
- step S10 the system scans the projected content in the acquired projected image. Specifically, it can scan the projected content in a row-by-row or column-by-column scanning order in a near-to-far manner, thereby obtaining the The width of each row or column forms the width information of the projected content.
- the system adopts the method from near to far, and scans the projection content in the scanning order of progressive scanning. When the first line is scanned, the width of the first line is marked as A1, and then the subsequent projection content is scanned line by line.
- the width of the next row is marked as A2, and the width of the Nth row is scanned sequentially until the width of the Nth row is obtained and marked as An, and the width information formed by multiple widths such as A1-An is obtained. Further, the system calculates each width in the width information with the reference width as a reference, thereby obtaining the scaling factor of each row or column, and the scaling factor information of the projected content is jointly formed by the scaling factor of each row or column.
- the step of determining the zoom factor information of the projected content according to the width information includes:
- Step S121 determining the reference width in the width information
- Step S122 performing preset calculations on each width in the width information and the reference width to obtain a plurality of scaling factors and form scaling factor information of the projected content.
- the system first determines the reference width in the width information. Specifically, the system can determine a width from multiple widths in the width information as the reference width according to the actual needs of the user, or the first line or The width of the first column is used as the base width. After the reference width is determined, the system performs a preset ratio operation between each width in the width information and the reference width. Specifically, the reference width is used as the denominator and each width is used as the numerator to perform the ratio operation. A plurality of scaling factors are obtained after the ratio operation of the reference width, and the scaling factor information of the projected content is formed from the multiple scaling factors.
- the scaling factor K1 of the second line is the result of the ratio calculation between A2 and A1
- the scaling factor K2 of the third line is the result of the ratio calculation between A3 and A1
- the scaling factor Kn-1 in row N is the result of the ratio operation between An and A1.
- Step S20 determining brightness adjustment information of the projected content according to the scaling factor information
- the system can first compare each zoom factor in the zoom factor information with the preset error range through the data processing module to determine whether the projected content needs to be divided into multiple display areas . If it is determined that the projection content does not need to be divided according to the zoom factor information, the system determines that there is no need to adjust the brightness of the projection content, and the current projector brightness adjustment process can be ended, wherein the preset error range is the error value set according to the actual projection environment scope.
- the projection content is divided into display areas according to the target scaling factor obtained by comparison, and the projection content is divided into multiple display areas, and according to the corresponding scaling factors of each display area, Determine the first target display brightness of each display area, and form the brightness adjustment information of the projected content, wherein, the target scaling factor is a scaling factor outside the preset error range among the scaling factors of the scaling factor information.
- the display effect of the projection content in each display area is consistent, and the brightness of the projection content viewed by the user is further smoothed, which is conducive to improving the user's awareness of the projection content. perception.
- Step S30 adjusting the brightness of each display area of the projected content according to the brightness adjustment information, so that the display effect of the projected content in each of the display areas is consistent.
- the system After determining the brightness adjustment information of the projected content according to the zoom factor information, the system first determines the projection distance between each display area in the projected content and the projection lamp, and determines whether each projection distance is within the preset projection distance range, where the preset The projection distance range is the range of distance values set according to the actual projection environment. Understandably, if the projection distance is greater than the preset projection distance range, it can be considered that the clarity of the projected content after projection is too low. In order to avoid wasting resources, you can choose not to project this The distance from the projection content in the corresponding display area is projected.
- each projection distance is within the preset projection distance range
- the brightness of each display area of the projected content is adjusted according to the brightness adjustment information, so that the display effect of the projected content in each display area is consistent. If there is a target projection distance outside the preset projection distance range in each projection distance, the display area corresponding to the target projection distance will not be projected, and the remaining display areas in the projected content will be respectively adjusted according to the remaining target display brightness in the brightness adjustment information.
- the brightness is adjusted to make the display effect of the projected content consistent in each display area, further making the brightness of the projected content viewed by the user smoother, which is beneficial to improve the user's perception of the projected content.
- This embodiment provides a method, device, medium and computer program product for adjusting brightness of a projector, which acquires a projected image of a projected area, and determines scaling factor information of projected content in the projected image; determines the projected projection according to the scaling factor information Content brightness adjustment information; adjust the brightness of each display area of the projection content according to the brightness adjustment information, so that the display effect of the projection content in each display area is consistent.
- the present application takes a projected image of the projected area and determines the scaling factor information of the projected content in the projected image, and finally adjusts the brightness of the projected content by adjusting the brightness adjustment information determined by the scaling factor information.
- the display effect of the projected content in each display area in the projected area is consistent, and the brightness of the projected content watched by the user is further smoothed, which is beneficial to improving the user's perception of the projected content.
- Step S21 comparing each scaling factor in the scaling factor information with a preset error range
- step S20 the system first obtains the preset error range, and then compares each scaling factor included in the scaling factor information with the preset error range, specifically, compares each scaling factor with the error value of the preset error range comparison to determine whether each scaling factor is within a preset error range.
- Step S22 if there is a target zoom coefficient outside the preset error range among the zoom coefficients, divide the projection content into display areas according to the target zoom coefficients to obtain multiple display areas;
- the zoom factors are within the preset error range after comparison, it can be considered that all the projection content is on the same parallel plane, that is, the projection content has only one display area, so it is determined that the display brightness of the display area is the same as the original projection The brightness is the same, and there is no need to adjust the brightness of the display area.
- the scaling factor is determined as the target scaling factor. The factor may be one or more, so the target zoom factor is also one or more.
- the system divides the display area of the projected content according to the target scaling factor. For example, if the target scaling factor is one, the projected content is divided into two display areas; if the target scaling factor is two, the The projected content is divided into three display areas, etc. After the division of the display areas is completed, multiple display areas are obtained.
- Step S23 Determine the first target display brightness of each of the display areas according to the scaling factor corresponding to each of the display areas, and form brightness adjustment information of the projected content based on each of the first target display brightness.
- the system obtains the original projection brightness, and calculates the scaling coefficients corresponding to each display area with the original projection brightness. Specifically, the scaling coefficients corresponding to each display area can be multiplied by the original projection brightness to obtain each display
- the first target display brightnesses corresponding to the areas respectively, and the brightness adjustment information of the projected content are formed from the first target display brightnesses corresponding to the display areas respectively, wherein the original projection brightness is the default projection brightness or the projection brightness during initial projection.
- the projected content it is first determined whether the projected content needs to be divided into multiple display areas, and if necessary, the projected content is divided into multiple display areas according to the scaling factor information, and the brightness of the projected content is accurately determined according to the scaling factors of the multiple display areas Adjustment information, in order to accurately adjust the brightness of each display area of the projection content according to the brightness adjustment information, so that the display effect of the projection content in each display area is consistent, and further makes the brightness of the projection content viewed by the user smoother, which is conducive to improving The user's perception of the projected content.
- the brightness adjustment information according to the The step of adjusting the brightness of each display area of the projected content includes:
- Step S31 obtaining the projection distances of the respective display areas of the projected content respectively;
- Step S32 comparing each of the projection distances with the preset projection distance range
- Step S33 if each of the projection distances is within the preset projection distance range, adjust the brightness of each display area of the projection content according to the brightness adjustment information.
- step S30 the system respectively acquires the projection distances of the display areas of the projected content.
- the projection distances between each display area of the projected content and the projection lamp can be respectively obtained through camera distance measurement, for example, by monocular distance measurement. distance measurement method or binocular distance measurement method, or the projection distance between each display area of the projection content and the projection lamp can be respectively obtained through the triangular parallel equivalence theorem.
- the system obtains the preset projection distance range, and compares each projection distance with the preset projection distance range to determine whether each projection distance is within the preset projection distance range, wherein the preset projection distance range is based on the actual The projection distance value range set by the projection environment.
- the brightness adjustment information adjusts the brightness of each display area of the projection content.
- the system can first obtain the original projection brightness of the projection area, and then perform difference calculations between the target display brightness of each display area and the original projection brightness to obtain each display area.
- the brightness difference between the original projection brightness and the target display brightness in the area and finally perform brightness compensation on the original projection brightness of the corresponding display area according to each brightness difference, and adjust the original projection brightness of each display area to the corresponding display area.
- the target display brightness makes the display effect of the projected content consistent in each display area, and further makes the brightness of the projected content viewed by the user smoother, which is beneficial to improve the user's perception of the projected content.
- the step of comparing each of the projection distances with the preset projection distance range it also includes:
- Step S34 if there is a target projection distance outside the preset projection distance range for each of the projection distances, then do not project the display area corresponding to the target projection distance;
- Step S35 adjusting the brightness of the remaining display areas in the projected content according to the remaining target display brightness in the brightness adjustment information.
- each projection distance After comparing each projection distance with the preset projection distance range, if it is determined through comparison that there is a target projection distance outside the preset projection distance range in each projection distance, it indicates that the projection content corresponding to the display area The display effect is poor during projection, for example, the clarity is poor and even the user cannot see clearly. If the projection content corresponding to the display area is projected, the user will not get a good viewing experience and waste resources, so the system will not target The display area corresponding to the projection distance is used for projection. Furthermore, for other display areas of the projected content, the system adjusts the brightness of the remaining display areas in the projected content according to the remaining target display brightness in the brightness adjustment information.
- the system can first obtain the original projected brightness of the projected area, Then, the difference between the remaining target display brightness and the original projection brightness in the brightness adjustment information is calculated to obtain the brightness difference between the original projection brightness and the target display brightness in the remaining display area, and finally the remaining display brightness is calculated according to each brightness difference.
- the original projection brightness of the corresponding display area in the area is compensated for brightness, and the original projection brightness of each display area is adjusted to the target display brightness of the corresponding display area, so that the display effect of the projection content in each display area is consistent, and further makes the user watch the projection
- the brightness of the content is relatively smooth, which is conducive to improving the user's perception of the projected content.
- This embodiment adjusts the brightness of each display area of the projected content according to the brightness adjustment information, so that the display effect of the projected content in each display area is consistent, and further makes the brightness of the projected content viewed by the user smoother, which is conducive to improving the user's awareness of the projected content. perception. And when each projection distance has a target projection distance outside the preset projection distance range, the display area corresponding to the target projection distance is not projected, so as to save resources.
- the projector brightness adjustment method includes :
- Step S40 if there is an occlusion area in each display area of the projected content, then determining a second target display brightness of the occlusion area;
- Step S50 adjusting the brightness of the shaded area of the projected content according to the second target display brightness.
- the system can detect whether there is an occluded area in each display area of the projected content by scanning the projected image.
- the detection can be performed by row-by-row or column-by-column scanning, or by row-by-row and column-by-column simultaneous scanning. detection by scanning.
- the system obtains the display brightness of the projection lamp projected to the display area when the occlusion area is not occluded , the projection distance between the projection lamp and the display area corresponding to the occlusion point corresponding to the occlusion area, the projection distance from the projection lamp to the occlusion point corresponding to the occlusion area, and the brightness calculation information such as the brightness adjustment coefficient, where the brightness adjustment coefficient is used to configure the projection lamp occlusion The brightness coefficient of the area. The larger the coefficient configuration, the higher the corresponding brightness, and the more power consumption.
- the system inputs the acquired brightness calculation information into a preset brightness calculation formula for calculation to obtain the second target display brightness of the occluded area, wherein the preset brightness calculation formula is shown in the following formula:
- Lu0 is the display brightness of the projection lamp projected to the display area when the occlusion area is not occluded
- D0 is the projection distance from the projection lamp to the display area corresponding to the occlusion point of the occlusion area
- d is the distance between the projection lamp and the occlusion area.
- the projection distance of the occlusion point, K is the brightness adjustment coefficient [0, 1], which is used to configure the brightness coefficient of the projection lamp occlusion area. The larger the coefficient configuration, the higher the corresponding brightness, and the more power consumption. When the brightness is 0 , the corresponding occluded area is not bright.
- the system adjusts the brightness of the shaded area of the projected content according to the second target display brightness. Specifically, the system adjusts the original projection brightness of the shaded area to the second target display brightness of the shaded area. It can be understood that in this embodiment, when there is an occlusion area, the display brightness of the occlusion area can also be set to 0, so as to save the energy consumption of the projection lamp and reduce the impact on the user when someone walks by and blocks the projection content.
- the second target display brightness of the occlusion area is determined, and the brightness of the occlusion area of the projection content is adjusted according to the second target display brightness, so that the projection content can be displayed in each display area.
- the display effect is consistent, which further makes the brightness of the projected content viewed by the user smoother, which is beneficial to improve the user's perception of the projected content, and can reduce the energy consumption of the projection lamp to save resources.
- the present application also provides a medium, the medium is preferably a computer-readable storage medium, on which a projector brightness adjustment program is stored, and when the projector brightness adjustment program is executed by a processor, the above projector brightness adjustment method is realized Steps of each example.
- the present application also provides a computer program product, including a computer program, and when the computer program is executed by a processor, the steps in the above embodiments of the method for adjusting brightness of a projector are realized.
- the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation.
- the technical solution of the present application can be embodied in the form of a software product in essence or the part that contributes to the prior art, and the computer software product is stored in a storage medium (such as ROM/RAM, disk, CD-ROM), including several instructions to enable a terminal device (which can be a fixed terminal, such as an Internet of Things smart device, including smart air conditioners, smart lights, smart power supplies, smart routers, etc.
- a terminal device which can be a fixed terminal, such as an Internet of Things smart device, including smart air conditioners, smart lights, smart power supplies, smart routers, etc.
- Mobile phones, wearable networked AR/VR devices, smart speakers, self-driving cars and many other networked devices implement the methods described in various embodiments of the present application.
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Abstract
本申请公开了一种投影仪亮度调节方法、设备、介质及计算机程序产品，获取投影区域的投影图像，确定所述投影图像中投影内容的缩放系数信息；根据所述缩放系数信息确定所述投影内容的亮度调节信息；根据所述亮度调节信息对所述投影内容的各显示区域进行亮度调节，使所述投影内容在各所述显示区域的显示效果一致。本申请在将投影内容投影到投影区域后，对投影区域拍摄投影图像并确定投影图像中投影内容的缩放系数信息，最后通过由缩放系数信息调节确定的亮度调节信息对投影内容的亮度进行调节，使投影内容在投影区域中各显示区域的显示效果一致，进一步使得用户观看的投影内容的亮度较为平滑，有利于提升用户对投影内容的观感。
Description
本申请要求于2021年09月22日提交中国专利局、申请号202111109802.2、发明名称为“投影仪亮度调节方法、设备、介质及计算机程序产品”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
本申请涉及投影技术领域，尤其涉及一种投影仪亮度调节方法、设备、介质及计算机程序产品。
随着经济与科技的快速发展与人们生活水平的日益提高，智能家居设备受到人们的广泛关注，当前很多智能家居设备都带有投影仪设备，但目前的投影仪功耗比较大，长时间运行会导致电量消耗过快，产生热点多，减少投影仪的寿命。
当投影仪在不是平行的平面上进行投影时，如果投影灯使用相同亮度投影，由于投影灯距离投影点距离不同，投影内容在非平行平面上的亮度显示不同，影响用户对投影内容的观感。
发明内容
本申请的主要目的在于提供一种投影仪亮度调节方法、设备、介质及计算机程序产品，旨在解决投影仪在进行投影时投影内容在非平行平面上的亮度显示不同的技术问题。
为实现上述目的，本申请实施例提供一种投影仪亮度调节方法，所述投影仪亮度调节方法包括：
获取投影区域的投影图像，确定所述投影图像中投影内容的缩放系数信息；
根据所述缩放系数信息确定所述投影内容的亮度调节信息；
根据所述亮度调节信息对所述投影内容的各显示区域进行亮度调节，使 所述投影内容在各所述显示区域的显示效果一致。
优选地，所述确定所述投影图像中投影内容的缩放系数信息的步骤包括：
对所述投影图像中的投影内容进行扫描，获取所述投影内容的宽度信息；
根据所述宽度信息，确定所述投影内容的缩放系数信息。
优选地，所述根据所述宽度信息，确定所述投影内容的缩放系数信息的步骤包括：
确定所述宽度信息中的基准宽度；
将所述宽度信息中的各宽度分别与所述基准宽度进行预设运算，得到多个缩放系数并形成所述投影内容的缩放系数信息。
优选地，所述根据所述缩放系数信息确定所述投影内容的亮度调节信息的步骤：
将所述缩放系数信息中的各缩放系数分别与预设误差范围进行对比；
若各所述缩放系数中存在处于所述预设误差范围之外的目标缩放系数，则根据所述目标缩放系数对所述投影内容进行显示区域划分，得到多个显示区域；
根据各所述显示区域对应的缩放系数，分别确定各所述显示区域的第一目标显示亮度，并基于各所述第一目标显示亮度形成所述投影内容的亮度调节信息。
优选地，所述根据所述亮度调节信息对所述投影内容的各显示区域进行亮度调节的步骤包括：
分别获取所述投影内容的各显示区域的投影距离；
将各所述投影距离分别与预设投影距离范围进行对比；
若各所述投影距离均处于所述预设投影距离范围内，则根据所述亮度调节信息对所述投影内容的各显示区域进行亮度调节。
优选地，所述将各所述投影距离分别与预设投影距离范围进行对比的步骤之后，还包括：
若各所述投影距离存在处于所述预设投影距离范围之外的目标投影距离，则不对所述目标投影距离对应的显示区域进行投影；
根据所述亮度调节信息中剩余的目标显示亮度分别对所述投影内容中剩余的显示区域进行亮度调节。
优选地，所述投影仪亮度调节方法包括：
若所述投影内容的各显示区域中存在遮挡区域，则确定所述遮挡区域的第二目标显示亮度；
根据所述第二目标显示亮度对所述投影内容的遮挡区域进行亮度调节。
进一步地，为实现上述目的，本申请还提供一种投影仪亮度调节设备，所述投影仪亮度调节设备包括存储器、处理器以及存储在所述存储器上并可在所述处理器上运行的投影仪亮度调节程序，所述投影仪亮度调节程序被所述处理器执行时实现上述的投影仪亮度调节方法的步骤。
进一步地，为实现上述目的，本申请还提供一种介质，所述介质为计算机可读存储介质，其上存储有投影仪亮度调节程序，所述投影仪亮度调节程序被处理器执行时实现上述的投影仪亮度调节方法的步骤。
进一步地，为实现上述目的，本申请还提供一种计算机程序产品，包括计算机程序，所述计算机程序被处理器执行时实现上述的投影仪亮度调节方法的步骤。
本申请实施例提供一种投影仪亮度调节方法、设备、介质及计算机程序产品，获取投影区域的投影图像，确定所述投影图像中投影内容的缩放系数信息；根据所述缩放系数信息确定所述投影内容的亮度调节信息；根据所述亮度调节信息对所述投影内容的各显示区域进行亮度调节，使所述投影内容在各所述显示区域的显示效果一致。本申请在将投影内容投影到投影区域后，对投影区域拍摄投影图像并确定投影图像中投影内容的缩放系数信息，最后通过由缩放系数信息调节确定的亮度调节信息对投影内容的亮度进行调节，使投影内容在投影区域中各显示区域的显示效果一致，进一步使得用户观看的投影内容的亮度较为平滑，有利于提升用户对投影内容的观感。
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一部分附图，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据提供的附图获得其他的附图。
图1为本申请投影仪亮度调节方法实施例方案涉及的硬件运行环境的结构示意图；
图2为本申请投影仪亮度调节方法第一实施例的流程示意图；
图3为本申请投影仪亮度调节方法第一实施例中的场景示意图；
图4为本申请投影仪亮度调节方法第二实施例的流程示意图；
图5为本申请投影仪亮度调节方法第三实施例的流程示意图；
图6为本申请投影仪亮度调节方法第四实施例的流程示意图。
本申请目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
下面将参照附图更详细地描述本公开的示例性实施方式。虽然附图中显示了本公开的示例性实施方式，然而应当理解，可以以各种形式实现本公开而不应被这里阐述的实施方式所限制。相反，提供这些实施方式是为了能够更透彻地理解本公开，并且能够将本公开的范围完整的传达给本领域的技术人员。
本申请实施例提供一种投影仪亮度调节方法、设备、介质及计算机程序产品，获取投影区域的投影图像，确定所述投影图像中投影内容的缩放系数信息；根据所述缩放系数信息确定所述投影内容的亮度调节信息；根据所述亮度调节信息对所述投影内容的各显示区域进行亮度调节，使所述投影内容在各所述显示区域的显示效果一致。本申请在将投影内容投影到投影区域后，对投影区域拍摄投影图像并确定投影图像中投影内容的缩放系数信息，最后通过由缩放系数信息调节确定的亮度调节信息对投影内容的亮度进行调节，使投影内容在投影区域中各显示区域的显示效果一致，进一步使得用户观看的投影内容的亮度较为平滑，有利于提升用户对投影内容的观感。
如图1所示，图1是本申请实施例方案涉及的硬件运行环境的投影仪亮度调节设备结构示意图。
在后续的描述中，使用用于表示元件的诸如“模块”、“部件”或“单元”的后缀仅为了有利于本申请的说明，其本身没有特定的意义。因此，“模块”、“部件”或“单元”可以混合地使用。
本申请实施例投影仪亮度调节设备可以是PC，也可以是平板电脑、便携计算机等可移动式终端设备。
如图1所示，该投影仪亮度调节设备可以包括：处理器1001，例如CPU，网络接口1004，用户接口1003，存储器1005，通信总线1002。其中，通信总线1002用于实现这些组件之间的连接通信。用户接口1003可以包括显示屏(Display)、输入单元比如键盘(Keyboard)，可选用户接口1003还可以包括标准的有线接口、无线接口。网络接口1004可选的可以包括标准的有线接口、无线接口(如WI-FI接口)。存储器1005可以是高速RAM存储器，也可以是稳定的存储器(non-volatile memory)，例如磁盘存储器。存储器1005可选的还可以是独立于前述处理器1001的存储装置。
本领域技术人员可以理解，图1中示出的投影仪亮度调节设备结构并不构成对投影仪亮度调节设备的限定，可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。
如图1所示，作为一种存储介质的存储器1005中可以包括操作系统、网络通信模块、用户接口模块以及投影仪亮度调节程序。
在图1所示的设备中，网络接口1004主要用于连接后台服务器，与后台服务器进行数据通信；用户接口1003主要用于连接客户端(用户端)，与客户端进行数据通信；而处理器1001可以用于调用存储器1005中存储的投影仪亮度调节程序，并执行以下操作：
获取投影区域的投影图像，确定所述投影图像中投影内容的缩放系数信息；
根据所述缩放系数信息确定所述投影内容的亮度调节信息；
根据所述亮度调节信息对所述投影内容的各显示区域进行亮度调节，使所述投影内容在各所述显示区域的显示效果一致。
进一步地，所述确定所述投影图像中投影内容的缩放系数信息的步骤包括：
对所述投影图像中的投影内容进行扫描，获取所述投影内容的宽度信息；
根据所述宽度信息，确定所述投影内容的缩放系数信息。
进一步地，所述根据所述宽度信息，确定所述投影内容的缩放系数信息的步骤包括：
确定所述宽度信息中的基准宽度；
将所述宽度信息中的各宽度分别与所述基准宽度进行预设运算，得到多个缩放系数并形成所述投影内容的缩放系数信息。
进一步地，所述根据所述缩放系数信息确定所述投影内容的亮度调节信息的步骤：
将所述缩放系数信息中的各缩放系数分别与预设误差范围进行对比；
若各所述缩放系数中存在处于所述预设误差范围之外的目标缩放系数，则根据所述目标缩放系数对所述投影内容进行显示区域划分，得到多个显示区域；
根据各所述显示区域对应的缩放系数，分别确定各所述显示区域的第一目标显示亮度，并基于各所述第一目标显示亮度形成所述投影内容的亮度调节信息。
进一步地，所述根据所述亮度调节信息对所述投影内容的各显示区域进行亮度调节的步骤包括：
分别获取所述投影内容的各显示区域的投影距离；
将各所述投影距离分别与预设投影距离范围进行对比；
若各所述投影距离均处于所述预设投影距离范围内，则根据所述亮度调节信息对所述投影内容的各显示区域进行亮度调节。
进一步地，所述将各所述投影距离分别与预设投影距离范围进行对比的步骤之后，处理器1001可以用于调用存储器1005中存储的投影仪亮度调节程序，并执行以下操作：
若各所述投影距离存在处于所述预设投影距离范围之外的目标投影距离，则不对所述目标投影距离对应的显示区域进行投影；
根据所述亮度调节信息中剩余的目标显示亮度分别对所述投影内容中剩余的显示区域进行亮度调节。
进一步地，所述投影仪亮度调节方法包括：
若所述投影内容的各显示区域中存在遮挡区域，则确定所述遮挡区域的第二目标显示亮度；
根据所述第二目标显示亮度对所述投影内容的遮挡区域进行亮度调节。
为了更好的理解上述技术方案，下面将参照附图更详细地描述本公开的示例性实施例。虽然附图中显示了本公开的示例性实施例，然而应当理解，可以以各种形式实现本公开而不应被这里阐述的实施例所限制。相反，提供这些实施例是为了能够更透彻地理解本公开，并且能够将本公开的范围完整的传达给本领域的技术人员。
为了更好的理解上述技术方案，下面将结合说明书附图以及具体的实施方式对上述技术方案进行详细的说明。
参照图2，本申请第一实施例提供一种投影仪亮度调节方法的流程示意图。该实施例中，所述投影仪亮度调节方法包括以下步骤：
步骤S10，获取投影区域的投影图像，确定所述投影图像中投影内容的缩放系数信息；
本实施例中投影仪亮度调节方法应用于投影仪亮度调节系统，投影仪亮度调节系统可以应用于投影仪以及智能音响等智能设备，投影仪调节系统中包括投影灯以及摄像头，投影灯用于对待投影内容进行投影，本实施例中投影灯可以为定焦投影灯，摄像头用于在投影后获取投影区域中包含投影内容的投影图像，本实施例中摄像头可以为深度摄像头。投影仪调节系统中还包括数据处理模块，可以对摄像头获取的投影图像进行处理以确定投影内容的亮度调节信息，并根据亮度调节信息对投影内容的各显示区域进行亮度调节，使投影内容在各显示区域的显示效果一致。可以理解地，为方便描述，后续将投影仪亮度调节系统简称为系统。
具体地，在用户开启系统并通过投影灯进行投影后，系统调用摄像头，通过摄像头对投影区域进行图像拍摄，由此得到包含投影内容的投影图像。在得到投影图像后，系统需要对投影图像进行识别，以确定是否需要对投影内容进行亮度调节。可以理解地，若投影内容处于投影区域同一平行的平面上，则拍摄得到的投影图像中投影内容各个显示区域的缩放比例是相同的，因此在该情况下通过相同亮度进行投影，用户所看到的各显示区域对于投影内容的显示效果是相同的，即用户看到各显示区域中投影内容的亮度是一致的，此时并不需要对投影内容进行亮度调节。而若投影内容处于由一个斜面形成的投影区域或多个不同平面形成的投影区域，则投影图像中投影内容在斜面或多个平面中形成多个不同缩放比例的显示区域，并且当前投影灯对于各显示区域的投影亮度是相同的，由于投影灯距离各显示区域的投影点距离不同，投影在各显示区域的亮度显示不同，即用户看到各显示区域的投影内容的亮度不同，将会影响用户对于投影内容的观感。参照图3，图3为本申请投影仪亮度调节方法第一实施例中的场景示意图，图3中拍摄的投影图像中投影内容由2个不同平面的显示区域A和显示区域B构成，由于显示区域A和显示区域B不在同一水平面上，所以采用相同的投影亮度投影在显示区域 A和显示区域B时，用户看到的显示区域A和显示区域B上显示的投影内容的亮度是不同的。因此，本申请通过摄像头获取投影区域的投影图像，并通过数据处理模块对投影图像中的投影内容进行扫描，根据扫描到的投影内容的宽度信息来确定投影内容的缩放系数信息，便于后续根据缩放系数信息分别确定投影内容各显示区域的亮度得到亮度调节信息，再通过亮度调节信息分别对投影内容的各显示区域进行亮度调节，使投影内容在投影区域中各显示区域的显示效果一致，进一步使得用户观看的投影内容的亮度较为平滑，有利于提升用户对投影内容的观感。
进一步地，所述确定所述投影图像中投影内容的缩放系数信息的步骤包括：
步骤S11，对所述投影图像中的投影内容进行扫描，获取所述投影内容的宽度信息；
步骤S12，根据所述宽度信息，确定所述投影内容的缩放系数信息。
在步骤S10中，系统对获取的投影图像中的投影内容进行扫描，具体可以采用由近及远的方式，并按照逐行或逐列的扫描顺序对投影内容进行扫描，由此获得投影内容中各行或各列的宽度并形成投影内容的宽度信息。例如：系统采用由近及远的方式，并按照逐行扫描的扫描顺序对投影内容进行扫描，当扫描到第一行时，标记第一行的宽度为A1，然后逐行扫描后续投影内容，下一行的宽度标记为A2，依次扫描直至得到第N行的宽度并标记为An，得到由A1-An等多个宽度形成的宽度信息。进一步地，系统将宽度信息中的各宽度分别与作为基准的基准宽度进行运算，由此得到各行或各列的缩放系数，并由各行或各列的缩放系数共同形成投影内容的缩放系数信息。
进一步地，所述根据所述宽度信息，确定所述投影内容的缩放系数信息的步骤包括：
步骤S121，确定所述宽度信息中的基准宽度；
步骤S122，将所述宽度信息中的各宽度分别与所述基准宽度进行预设运算，得到多个缩放系数并形成所述投影内容的缩放系数信息。
可以理解地，系统先确定宽度信息中的基准宽度，具体地，系统可以根据用户的实际需求从宽度信息中的多个宽度中确定出一个宽度作为基准宽度，也可以将扫描时第一行或第一列的宽度作为基准宽度。在确定出基准宽度后，系统将宽度信息中的各宽度分别与基准宽度进行预设的比值运算，具 体地，将基准宽度作为分母，将各宽度分别作为分子进行比值运算，在完成各宽度与基准宽度的比值运算后得到多个缩放系数，并由多个缩放系数形成投影内容的缩放系数信息。例如：将第一行的宽度A1作为基准宽度，则第二行的缩放系数K1为A2与A1的比值运算结果，第三行的缩放系数K2为A3与A1的比值运算结果，以此类推，第N行的缩放系数Kn-1为An与A1的比值运算结果。
步骤S20，根据所述缩放系数信息确定所述投影内容的亮度调节信息；
在确定投影图像中投影内容的缩放系数信息后，系统可以通过数据处理模块先将缩放系数信息中的各缩放系数分别与预设误差范围进行对比，确定是否需要将投影内容划分为多个显示区域。若根据缩放系数信息确定不需要对投影内容进行划分，系统则确定不需要对投影内容进行亮度调节，可以结束当前的投影仪亮度调节流程，其中预设误差范围为根据实际投影环境设置的误差数值范围。而若根据缩放系数信息确定需要对投影内容进行划分，则根据对比得到的目标缩放系数对投影内容进行显示区域划分，将投影内容划分为多个显示区域，并根据各显示区域对应的缩放系数，确定各显示区域的第一目标显示亮度，并形成投影内容的亮度调节信息，其中，目标缩放系数为缩放系数信息的各缩放系数中处于预设误差范围之外的缩放系数。以便于后续根据亮度调节信息对投影内容的各显示区域进行亮度调节，使投影内容在各显示区域的显示效果一致，进一步使得用户观看的投影内容的亮度较为平滑，有利于提升用户对投影内容的观感。
步骤S30，根据所述亮度调节信息对所述投影内容的各显示区域进行亮度调节，使所述投影内容在各所述显示区域的显示效果一致。
在根据缩放系数信息确定投影内容的亮度调节信息后，系统先确定投影内容中各显示区域与投影灯之间的投影距离，并分别确定各投影距离是否在预设投影距离范围内，其中预设投影距离范围为根据实际投影环境设置的距离数值范围，可以理解地，若投影距离大于预设投影距离范围，可以认为投影后投影内容的清晰度过低，为避免浪费资源，可以选择不对该投影距离对应的显示区域的投影内容进行投影。进一步地，若经确定各投影距离均在预设投影距离范围内，则根据亮度调节信息对投影内容的各显示区域进行亮度调节，使投影内容在各显示区域的显示效果一致。若各投影距离中存在处于预设投影距离范围之外的目标投影距离，则不对目标投影距离对应的显示区 域进行投影，根据亮度调节信息中剩余的目标显示亮度分别对投影内容中剩余的显示区域进行亮度调节，使投影内容在各显示区域的显示效果一致，进一步使得用户观看的投影内容的亮度较为平滑，有利于提升用户对投影内容的观感。
本实施例提供一种投影仪亮度调节方法、设备、介质及计算机程序产品，获取投影区域的投影图像，确定所述投影图像中投影内容的缩放系数信息；根据所述缩放系数信息确定所述投影内容的亮度调节信息；根据所述亮度调节信息对所述投影内容的各显示区域进行亮度调节，使所述投影内容在各所述显示区域的显示效果一致。本申请在将投影内容投影到投影区域后，对投影区域拍摄投影图像并确定投影图像中投影内容的缩放系数信息，最后通过由缩放系数信息调节确定的亮度调节信息对投影内容的亮度进行调节，使投影内容在投影区域中各显示区域的显示效果一致，进一步使得用户观看的投影内容的亮度较为平滑，有利于提升用户对投影内容的观感。
进一步地，参照图4，基于本申请投影仪亮度调节方法的第一实施例，提出本申请投影仪亮度调节方法的第二实施例，在第二实施例中，所述根据所述缩放系数信息确定所述投影内容的亮度调节信息的步骤：
步骤S21，将所述缩放系数信息中的各缩放系数分别与预设误差范围进行对比；
在步骤S20中，系统先获取预设误差范围，再将缩放系数信息中包含的各缩放系数分别与预设误差范围进行对比，具体地，分别将各缩放系数与预设误差范围的误差数值进行对比，确定各缩放系数是否处于预设误差范围内。
步骤S22，若各所述缩放系数中存在处于所述预设误差范围之外的目标缩放系数，则根据所述目标缩放系数对所述投影内容进行显示区域划分，得到多个显示区域；
进一步地，若经对比各缩放系数均处于预设误差范围内，可以认为所有的投影内容均在同一平行的平面上，即投影内容只有一个显示区域，因此确定该显示区域的显示亮度与原投影亮度相同，而不需要对该显示区域进行亮度调节。进一步地，若经对比各缩放系数中存在处于预设误差范围之外的缩放系数，则将该缩放系数确定为目标缩放系数，可以理解地，各缩放系数中处于预设误差范围之外的缩放系数可能为一个或多个，因此目标缩放系数也为一个或多个。进一步地，系统根据目标缩放系数对投影内容进行显示区域 划分，例如，若目标缩放系数的数量为一个，则将投影内容划分为2个显示区域，若目标缩放系数的数量为两个，则将投影内容划分为3各显示区域等，在显示区域划分完成后，得到多个显示区域。
步骤S23，根据各所述显示区域对应的缩放系数，分别确定各所述显示区域的第一目标显示亮度，并基于各所述第一目标显示亮度形成所述投影内容的亮度调节信息。
进一步地，系统获取原始投影亮度，在将各显示区域对应的缩放系数分别与原始投影亮度进行运算，具体地，可以将各显示区域对应的缩放系数分别与原始投影亮度进行乘积运算，得到各显示区域分别对应的第一目标显示亮度，并由各显示区域分别对应的第一目标显示亮度形成投影内容的亮度调节信息，其中原始投影亮度为默认的投影亮度或初始投影时的投影亮度。
本实施例先确定是否需要将投影内容划分为多个显示区域，若需要则根据缩放系数信息将投影内容划分为多个显示区域，并根据多个显示区域的缩放系数准确地确定投影内容的亮度调节信息，以便于后续根据亮度调节信息准确地对投影内容的各显示区域进行亮度调节，使投影内容在各显示区域的显示效果一致，进一步使得用户观看的投影内容的亮度较为平滑，有利于提升用户对投影内容的观感。
进一步地，参照图5，基于本申请投影仪亮度调节方法的第一实施例，提出本申请投影仪亮度调节方法的第三实施例，在第三实施例中，所述根据所述亮度调节信息对所述投影内容的各显示区域进行亮度调节的步骤包括：
步骤S31，分别获取所述投影内容的各显示区域的投影距离；
步骤S32，将各所述投影距离分别与预设投影距离范围进行对比；
步骤S33，若各所述投影距离均处于所述预设投影距离范围内，则根据所述亮度调节信息对所述投影内容的各显示区域进行亮度调节。
在步骤S30中，系统分别获取投影内容的各显示区域的投影距离，具体地，可以通过摄像头测距法分别获取投影内容的各显示区域到投影灯之间的投影距离，例如采用单目测距法或双目测距法进行测距，也可以通过三角形平行等比定理分别获取投影内容的各显示区域到投影灯之间的投影距离。进一步地，系统获取预设投影距离范围，并将各投影距离分别与预设投影距离范围进行对比，以此确定各投影距离是否处于预设投影距离范围内，其中预设投影距离范围为根据实际投影环境设置的投影距离数值范围。进一步地， 若经对比确定各投影距离均处于预设投影距离范围内，说明对各显示区域对应的投影内容进行投影时均具有较好的显示效果，例如具有较好的清晰度，系统则根据亮度调节信息对投影内容的各显示区域进行亮度调节，具体地，系统可以先获取投影区域的原始投影亮度，再将各显示区域的目标显示亮度分别与原始投影亮度进行差值运算，得到各显示区域中原始投影亮度与目标显示亮度之间的亮度差值，最后根据各亮度差值分别对相应显示区域的原始投影亮度进行亮度补偿，将各显示区域的原始投影亮度分别调整为相应显示区域的目标显示亮度，使投影内容在各显示区域的显示效果一致，进一步使得用户观看的投影内容的亮度较为平滑，有利于提升用户对投影内容的观感。
进一步地，所述将各所述投影距离分别与预设投影距离范围进行对比的步骤之后，还包括：
步骤S34，若各所述投影距离存在处于所述预设投影距离范围之外的目标投影距离，则不对所述目标投影距离对应的显示区域进行投影；
步骤S35，根据所述亮度调节信息中剩余的目标显示亮度分别对所述投影内容中剩余的显示区域进行亮度调节。
进一步地，在将各投影距离分别与预设投影距离范围进行对比之后，若经对比确定各投影距离中存在处于预设投影距离范围之外的目标投影距离，说明对该显示区域对应的投影内容进行投影时显示效果较差，例如清晰度较差甚至使用户看不清，若对该显示区域对应的投影内容进行投影，用户得不到较好的观感体验并且浪费资源，因此系统则不对目标投影距离对应的显示区域进行投影。进一步地，对于投影内容的其他显示区域，系统则根据亮度调节信息中剩余的目标显示亮度分别对投影内容中剩余的显示区域进行亮度调节，具体地，系统可以先获取投影区域的原始投影亮度，再将亮度调节信息中剩余的目标显示亮度分别与原始投影亮度进行差值运算，得到剩余显示区域中原始投影亮度与目标显示亮度之间的亮度差值，最后根据各亮度差值分别对剩余显示区域中相应显示区域的原始投影亮度进行亮度补偿，将各显示区域的原始投影亮度分别调整为相应显示区域的目标显示亮度，使投影内容在各显示区域的显示效果一致，进一步使得用户观看的投影内容的亮度较为平滑，有利于提升用户对投影内容的观感。
本实施例根据亮度调节信息对投影内容的各显示区域进行亮度调节，使投影内容在各显示区域的显示效果一致，进一步使得用户观看的投影内容的 亮度较为平滑，有利于提升用户对投影内容的观感。并在各投影距离存在处于预设投影距离范围之外的目标投影距离时，不对目标投影距离对应的显示区域进行投影，以节省资源。
进一步地，参照图6，基于本申请投影仪亮度调节方法的第一实施例，提出本申请投影仪亮度调节方法的第四实施例，在第四实施例中，所述投影仪亮度调节方法包括：
步骤S40，若所述投影内容的各显示区域中存在遮挡区域，则确定所述遮挡区域的第二目标显示亮度；
步骤S50，根据所述第二目标显示亮度对所述投影内容的遮挡区域进行亮度调节。
可以理解地，系统可以通过对投影图像进行扫描来检测投影内容的各显示区域中是否存在遮挡区域，具体可以通过逐行扫描或逐列扫描的方式进行检测，也可以采用逐行及逐列同时扫描的方式进行检测。进一步地，若经检测确定投影内容的各显示区域中存在遮挡区域，则确定遮挡区域的第二目标显示亮度，具体地，系统获取遮挡区域未被遮挡时投影灯投影到该显示区域的显示亮度、投影灯到遮挡区域的遮挡点对应的显示区域之间的投影距离、投影灯到遮挡区域对应的遮挡点的投影距离以及亮度调节系数等亮度计算信息，其中亮度调节系数用于配置投影灯遮挡区域的亮度系数，此系数配置越大，对应亮度越高，也就越耗电，亮度为0的时候，对应遮挡区域不亮。进一步地，系统将获取的亮度计算信息输入至预设的亮度计算公式中进行计算，得到遮挡区域的第二目标显示亮度，其中预设的亮度计算公式如以下公式所示：
lu＝Lu0*d/D0*K
其中，Lu0为遮挡区域未被遮挡时投影灯投影到该显示区域的显示亮度，D0为投影灯到遮挡区域的遮挡点对应的显示区域之间的投影距离，d为投影灯到遮挡区域对应的遮挡点的投影距离，K为亮度调节系数[0，1]，用于配置投影灯遮挡区域的亮度系数，此系数配置越大，对应亮度越高，也就越耗电，亮度为0的时候，对应遮挡区域不亮。
进一步地，系统根据第二目标显示亮度对投影内容的遮挡区域进行亮度调节，具体地，系统将遮挡区域的原始投影亮度调整为该遮挡区域的第二目标显示亮度。可以理解地，本实施例中当存在遮挡区域时，还可以将遮挡区 域的显示亮度设置为0，以节省投影灯的能量消耗并在因有人走过而遮挡投影内容时减少对用户的影响。
本实施例在投影内容的各显示区域存在遮挡区域时，确定遮挡区域的第二目标显示亮度并根据第二目标显示亮度对投影内容的遮挡区域进行亮度调节，以使投影内容在各显示区域的显示效果一致，进一步使得用户观看的投影内容的亮度较为平滑，有利于提升用户对投影内容的观感，并且可以减少投影灯的能量消耗以节省资源。
此外，本申请还提供一种介质，所述介质优选为计算机可读存储介质，其上存储有投影仪亮度调节程序，所述投影仪亮度调节程序被处理器执行时实现上述投影仪亮度调节方法各实施例的步骤。
此外，本申请还提供一种计算机程序产品，包括计算机程序，所述计算机程序被处理器执行时实现上述投影仪亮度调节方法各实施例的步骤。
在本申请投影仪亮度调节设备、计算机可读介质和计算机程序产品的实施例中，包含了上述投影仪亮度调节方法各实施例的全部技术特征，说明和解释内容与上述投影仪亮度调节方法各实施例基本相同，在此不做赘述。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
上述本申请实施例序号仅仅为了描述，不代表实施例的优劣。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端设备(可以是固定终端，如物联网智能设备，包括智能空调、智能电灯、智能电源、智能路由器等智能家居；也可以是移动终端，包括智能手机、可穿戴的联网AR/VR装置、智能音箱、自动驾驶汽车等诸多联网设备)执行本申请各个实施例所述的方法。
以上仅为本申请的优选实施例，并非因此限制本申请的专利范围，凡是利用本申请说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本申请的专利保护范围内。
Claims (10)
- 一种投影仪亮度调节方法，其特征在于，所述投影仪亮度调节方法包括：获取投影区域的投影图像，确定所述投影图像中投影内容的缩放系数信息；根据所述缩放系数信息确定所述投影内容的亮度调节信息；根据所述亮度调节信息对所述投影内容的各显示区域进行亮度调节，使所述投影内容在各所述显示区域的显示效果一致。
- 如权利要求1所述的投影仪亮度调节方法，其特征在于，所述确定所述投影图像中投影内容的缩放系数信息的步骤包括：对所述投影图像中的投影内容进行扫描，获取所述投影内容的宽度信息；根据所述宽度信息，确定所述投影内容的缩放系数信息。
- 如权利要求2所述的投影仪亮度调节方法，其特征在于，所述根据所述宽度信息，确定所述投影内容的缩放系数信息的步骤包括：确定所述宽度信息中的基准宽度；将所述宽度信息中的各宽度分别与所述基准宽度进行预设运算，得到多个缩放系数并形成所述投影内容的缩放系数信息。
- 如权利要求1所述的投影仪亮度调节方法，其特征在于，所述根据所述缩放系数信息确定所述投影内容的亮度调节信息的步骤：将所述缩放系数信息中的各缩放系数分别与预设误差范围进行对比；若各所述缩放系数中存在处于所述预设误差范围之外的目标缩放系数，则根据所述目标缩放系数对所述投影内容进行显示区域划分，得到多个显示区域；根据各所述显示区域对应的缩放系数，分别确定各所述显示区域的第一目标显示亮度，并基于各所述第一目标显示亮度形成所述投影内容的亮度调节信息。
- 如权利要求1所述的投影仪亮度调节方法，其特征在于，所述根据所述亮度调节信息对所述投影内容的各显示区域进行亮度调节的步骤包括：分别获取所述投影内容的各显示区域的投影距离；将各所述投影距离分别与预设投影距离范围进行对比；若各所述投影距离均处于所述预设投影距离范围内，则根据所述亮度调 节信息对所述投影内容的各显示区域进行亮度调节。
- 如权利要求5所述的投影仪亮度调节方法，其特征在于，所述将各所述投影距离分别与预设投影距离范围进行对比的步骤之后，还包括：若各所述投影距离存在处于所述预设投影距离范围之外的目标投影距离，则不对所述目标投影距离对应的显示区域进行投影；根据所述亮度调节信息中剩余的目标显示亮度分别对所述投影内容中剩余的显示区域进行亮度调节。
- 如权利要求1所述的投影仪亮度调节方法，其特征在于，所述投影仪亮度调节方法包括：若所述投影内容的各显示区域中存在遮挡区域，则确定所述遮挡区域的第二目标显示亮度；根据所述第二目标显示亮度对所述投影内容的遮挡区域进行亮度调节。
- 一种投影仪亮度调节设备，其特征在于，所述投影仪亮度调节设备包括存储器、处理器以及存储在所述存储器上并可在所述处理器上运行的投影仪亮度调节程序，所述投影仪亮度调节程序被所述处理器执行时实现如权利要求1-7中任一项所述的投影仪亮度调节方法的步骤。
- 一种介质，所述介质为计算机可读存储介质，其特征在于，所述计算机可读存储介质上存储有投影仪亮度调节程序，所述投影仪亮度调节程序被处理器执行时实现如权利要求1-7中任一项所述的投影仪亮度调节方法的步骤。
- 一种计算机程序产品，包括计算机程序，其特征在于，该计算机程序被处理器执行时实现如权利要求1-7中任一项所述的投影仪亮度调节方法的步骤。
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| CN103327274A (zh) * | 2012-03-21 | 2013-09-25 | 精工爱普生株式会社 | 图像处理装置、投影仪、以及投影仪的控制方法 |
| CN111107333A (zh) * | 2019-12-31 | 2020-05-05 | 成都极米科技股份有限公司 | 一种亮度校正方法、系统、设备及计算机可读存储介质 |
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