CN106791462B - Method and system for supplementing light during photographing of front camera of mobile terminal - Google Patents
Method and system for supplementing light during photographing of front camera of mobile terminal Download PDFInfo
- Publication number
- CN106791462B CN106791462B CN201611072807.1A CN201611072807A CN106791462B CN 106791462 B CN106791462 B CN 106791462B CN 201611072807 A CN201611072807 A CN 201611072807A CN 106791462 B CN106791462 B CN 106791462B
- Authority
- CN
- China
- Prior art keywords
- light
- brightness
- front camera
- supplementing
- supplement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/71—Circuitry for evaluating the brightness variation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/74—Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means
Abstract
the invention relates to the technical field of mobile terminals and discloses a method and a system for supplementing light during photographing of a front camera of a mobile terminal, wherein when the front camera is turned on for photographing and the ambient light brightness is lower than the ambient light brightness needing supplementing light during photographing of the front camera, a light brightness detection signal is sent to a system of the mobile terminal to control the front camera to supplement light; the mobile terminal transmits light supplementing light rays required by photographing of the front camera, the front camera is filtered to photograph strong light rays in the light supplementing light rays, the light supplementing light rays form an aperture after being filtered, and the aperture diffuses light brightness. The invention detects that the ambient light brightness is less than the ambient light brightness needing light supplement when the front camera shoots, the aperture is softly and slowly expanded by the light supplemented light, and the aperture emits the light brightness, so that the ambient brightness during shooting is enhanced.
Description
Technical Field
The invention relates to the technical field of mobile terminals, in particular to a method and a system for supplementing light during photographing of a front camera of a mobile terminal.
Background
The digital camera function of the mobile phone refers to whether the mobile phone can take still pictures or short pictures through a built-in or external digital camera, and the digital camera function of the mobile phone is rapidly developed as a new additional function of the mobile phone. With the improvement of the pixels of the camera, the shooting effect of the camera is closer to that of the traditional card camera and even a low-end single-lens reflex camera.
the mobile phone camera is divided into an internal camera and an external camera, and the internal camera is the camera in the mobile phone, so that the mobile phone camera is more convenient. The external mobile phone is connected with the digital camera through a data line or a lower interface of the mobile phone to complete all shooting functions of the digital camera. The external digital camera has the advantages that the weight of the mobile phone can be reduced, and the external digital camera is light in weight, convenient to carry and simple in use method.
The performance of digital cameras of mobile phones in development stage should be in the initial stage as well, and only individual mobile phone cameras have optical zoom function, but most have digital zoom function. However, it is believed that with the development of digital camera functions for mobile phones, mobile phones with optical zoom will gradually come into the market. In addition, the digital camera functions of the mobile phone mainly include still image shooting, continuous shooting, short-film shooting, lens rotation, automatic white balance, built-in flash lamp, and the like. The shooting function of the mobile phone is directly related to the screen material, the resolution of the screen, the camera pixels and the camera material.
The camera of mobile terminal divide into leading camera and rear camera, and when the user used mobile terminal's leading camera to shoot, because the leading camera of mobile terminal is close apart from the people's eye, the light of light filling can not amazing people's eye, and the light filling effect among the prior art is not good, can't make the light of light filling softly enlarges the light ring slowly, the light ring distributes away light luminance to the effect that the messenger shot is not good.
For example, a user can start the front-mounted flash lamp in the processes of self-shooting, video call and the like to ensure the shooting effect, but because the distance between the user and the mobile phone is short in the processes of self-shooting, video call and the like, if the front-mounted camera is too bright, the eyes of the user are damaged, and if the brightness is insufficient, the expected shooting effect cannot be achieved. In addition, because the ambient brightness of the user using the mobile phone is different, the brightness to be compensated is also different, and the flash lamp with fixed brightness cannot meet the requirement.
therefore, the prior art still needs to be improved and developed to address the above drawbacks.
disclosure of Invention
in view of the above-mentioned deficiencies of the prior art, an object of the present invention is to provide a method and a system for supplementing light for photographing by a front camera of a mobile terminal, wherein by detecting that the ambient light brightness during photographing is less than the ambient light brightness required to be supplemented by the front camera during photographing, an aperture is gently and slowly enlarged by the light supplemented by the light, and the aperture emits the light brightness, so that the ambient brightness during photographing is enhanced.
The technical scheme of the invention is as follows:
A method for supplementing light during photographing of a front camera of a mobile terminal comprises the following steps:
Step A: when the mobile terminal opens the front camera to take a picture, judging whether the currently detected ambient light brightness is less than the ambient light brightness needing light supplement when the front camera takes a picture;
and B: when the ambient light brightness is lower than the ambient light brightness needing light supplement when the front camera takes a picture, sending a light brightness detection signal to a system of the mobile terminal, and controlling the front camera to supplement light;
And C: the mobile terminal transmits light supplementing light rays required by photographing of the front camera, strong light rays in the light supplementing light rays photographed by the front camera are filtered, the light supplementing light rays are filtered to form an aperture, and the aperture diffuses light brightness;
step D: when the current in the comparative light supplement is smaller than the current in the moderate light brightness, a current comparison signal is sent to the mobile terminal to cut off the power supply voltage signal, and the light supplement and filtering stops working.
Preferably, the method for supplementing light by photographing with a front camera of the mobile terminal, wherein the step a further includes:
step A1: step A1: when the mobile terminal opens the front camera to shoot, the ambient light brightness during shooting is detected, and when the detected ambient light brightness is greater than the ambient light brightness needing light supplement during shooting by the front camera, the front camera shoots under the current ambient light brightness without light supplement.
Preferably, the method for supplementing light by photographing with a front camera of the mobile terminal, wherein the step B specifically includes:
B1, sensing the brightness of the ambient light when the brightness of the ambient light needing light supplement is needed when the front camera is used for photographing, and comparing the brightness of the ambient light with the brightness of the ambient light needing light supplement;
and step B2, when the ambient light brightness is less than the ambient light brightness needing light supplement when the front camera takes a picture, sending a light brightness detection signal to a system of the mobile terminal, and controlling the front camera to supplement light.
Preferably, the method for supplementing light by photographing with a front camera of the mobile terminal, wherein the step C specifically includes:
step C1: if the light ray with moderate light brightness is Lux0, the brightness of the strong light ray is Lux1, and the brightness of the weak light ray is Lux2, then Lux1, Lux0 and Lux2 are set;
Step C2: according to the change of the power supply voltage, dynamically filtering out strong light rays Lux1 in the light supplementing light rays for photographing by the front camera;
Step C3: when the brightness of the light supplementing light rays shot by the front camera is increased, namely the Lux1 is increased, the output power supply voltage V is controlled to be increased, and the filtering intensity is increased;
step C4: when the brightness of the light supplementing light rays shot by the front camera is reduced, namely the Lux1 is reduced, the output power supply voltage V is controlled to be reduced, and the filtering intensity is reduced;
Step C5: and when the light supplementing light passes through the light supplementing and filtering treatment, an aperture is formed, and the aperture diffuses the light brightness.
Preferably, the method for supplementing light by photographing with a front camera of the mobile terminal, wherein the step D specifically includes:
Step D1: the mobile terminal detects a current I during light supplement, and when the current I for comparing light supplement is larger than the current I0 during moderate light brightness, a current comparison signal 1 is sent to control an output voltage signal V1, and the filtering intensity of light supplement filtering is increased;
step D2: when the current I for comparing light supplement is smaller than the current I0 when the light brightness is moderate, sending a current comparison signal 2 to control the power supply voltage signal to be switched off, and stopping the light supplement filtering;
Step D3: when the brightness of the ambient light is sensed to be larger than the brightness of the ambient light needing light supplement when the front camera shoots, the brightness of the ambient light is sensed, and the brightness of the ambient light is compared with the brightness of the ambient light needing light supplement through light brightness comparison;
Step D4: sending light brightness detection signal 2 control closes its inside light filling operation, leading camera is shot and need not carry out the light filling.
the utility model provides a system for light filling is shot to leading camera of mobile terminal, wherein, the system for light filling is shot to leading camera of mobile terminal includes:
The mobile terminal comprises a light brightness detection module, a light source module and a light source module, wherein the light brightness detection module is used for judging whether the currently detected ambient light brightness is smaller than the ambient light brightness needing light supplement when the front camera is used for shooting when the front camera is opened for shooting;
the light supplementing module is used for sending a light brightness detection signal to a system of the mobile terminal and controlling the front camera to supplement light when the ambient light brightness is less than the ambient light brightness needing light supplementation when the front camera takes a picture;
the light filtering module is used for transmitting light supplementing light rays required by photographing of the front camera by the mobile terminal, filtering strong light rays in the light supplementing light rays required by photographing of the front camera, forming an aperture after the light supplementing light rays are subjected to light filtering processing, and diffusing the light brightness by the aperture;
and the light supplementing light control module is used for sending a current comparison signal to the mobile terminal to cut off a power supply voltage signal when the current during light supplementing comparison is smaller than the current during moderate light brightness, and the light supplementing filtering stops working.
Preferably, the system for supplementary lighting of shooing of the front camera of the mobile terminal, wherein, the luminance detection module further includes:
And the normal photographing unit is used for detecting the ambient light brightness during photographing when the front camera is opened for photographing when the mobile terminal, and when the detected ambient light brightness is greater than the ambient light brightness needing light supplement during photographing by the front camera, the front camera photographs under the current ambient light brightness without light supplement.
preferably, the system for supplementing light for photographing by a front camera of the mobile terminal, wherein the light supplementing module specifically comprises:
the brightness sensing unit is used for sensing the brightness of the ambient light when the brightness of the ambient light needing light supplement is obtained when the front camera takes a picture, and comparing the brightness of the ambient light with the brightness of the ambient light needing light supplement;
and the brightness comparison unit is used for sending a light brightness detection signal to a system of the mobile terminal and controlling the front camera to supplement light when the ambient light brightness is less than the ambient light brightness needing light supplement when the front camera takes a picture.
preferably, the system for supplementing light for photographing by using the front camera of the mobile terminal, wherein the light filtering module specifically comprises:
The brightness setting unit is used for setting the light ray with moderate brightness as Lux0, the strong light ray brightness as Lux1 and the weak light ray brightness as Lux2, and then the Lux1> Lux0> Lux 2;
The strong light filtering unit is used for dynamically filtering strong light Lux1 in the light supplementing light for photographing by the front camera according to the change of the power supply voltage;
The first filtering unit is used for controlling the output power supply voltage V to be increased and the filtering intensity to be increased when the brightness of the supplementary lighting light rays shot by the front camera is increased, namely the Lux1 is increased;
The second filtering unit is used for controlling the output power supply voltage V to be reduced and the filtering intensity to be reduced when the brightness of the supplementary lighting light rays shot by the front camera is reduced, namely the Lux1 is reduced;
And the light diffusion unit is used for forming an aperture after the light supplementing light passes through the light supplementing and filtering treatment, and the aperture diffuses the light brightness.
Preferably, the system for supplementing light for photographing by using the front camera of the mobile terminal, wherein the light supplementing light control module specifically comprises:
The first light supplement current comparison unit is used for detecting a current I during light supplement of the mobile terminal, and when the current I during light supplement is greater than the current I0 during moderate light brightness, a current comparison signal 1 is sent to control an output voltage signal V1, so that the filtering intensity of light supplement filtering is increased;
the second light supplementing current comparison unit is used for sending a current comparison signal 2 to control the power supply voltage signal to be switched off when the current I for comparing light supplementation is smaller than the current I0 when the light brightness is moderate, and the light supplementing filter stops working;
The sensing comparison unit is used for sensing the brightness of the ambient light and comparing the brightness of the ambient light with the brightness of the ambient light needing light supplement through light brightness comparison when the brightness of the ambient light is sensed to be larger than the brightness of the ambient light needing light supplement when the front camera shoots;
and the light supplement closing unit is used for sending a light brightness detection signal 2 to control closing of the light supplement operation inside the light supplement closing unit, and the front camera does not need to supplement light when taking a picture.
The invention discloses a method and a system for supplementing light during photographing of a front camera of a mobile terminal, wherein when the front camera is opened for photographing by the mobile terminal, whether the currently detected ambient light brightness is less than the ambient light brightness needing supplementing light during photographing of the front camera is judged; when the ambient light brightness is lower than the ambient light brightness needing light supplement when the front camera takes a picture, sending a light brightness detection signal to a system of the mobile terminal, and controlling the front camera to supplement light; the mobile terminal transmits light supplementing light rays required by photographing of the front camera, strong light rays in the light supplementing light rays photographed by the front camera are filtered, the light supplementing light rays are filtered to form an aperture, and the aperture diffuses light brightness; when the current in the comparative light supplement is smaller than the current in the moderate light brightness, a current comparison signal is sent to the mobile terminal to cut off the power supply voltage signal, and the light supplement and filtering stops working. The invention detects that the ambient light brightness is less than the ambient light brightness needing light supplement when the front camera shoots, the aperture is softly and slowly expanded by the light supplemented light, and the aperture emits the light brightness, so that the ambient brightness during shooting is enhanced.
drawings
fig. 1 is a flowchart of a method for supplementing light for photographing by a front camera of a mobile terminal according to a preferred embodiment of the present invention.
Fig. 2 is a functional block diagram of a system for supplementary lighting by photographing with a front camera of a mobile terminal according to a preferred embodiment of the present invention.
Detailed Description
the invention provides a method and a system for supplementing light by photographing with a front camera of a mobile terminal, and in order to make the purpose, technical scheme and advantages of the invention clearer and clearer, the invention is further described in detail below by referring to the attached drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
as shown in fig. 1, fig. 1 is a flowchart of a method for supplementing light for photographing by a front camera of a mobile terminal according to a preferred embodiment of the present invention.
The embodiment of the invention provides a method for supplementing light for photographing by a front camera of a mobile terminal, which comprises the following steps:
And S100, when the mobile terminal opens the front camera to take a picture, judging whether the currently detected ambient light brightness is less than the ambient light brightness needing light supplement when the front camera takes a picture.
according to the invention, when the front camera of the mobile terminal takes a picture, the front camera is close to the human eyes, when the light is required to be supplemented for taking a picture, the light supplemented cannot stimulate the human eyes, namely, the brightness of the light cannot be strong, so that the light required to be supplemented for controlling softly and slowly expands the aperture, the aperture emits the light brightness, and the ambient brightness during taking a picture is enhanced. When the mobile terminal opens the front camera to take a picture, the invention judges whether the current ambient light brightness is less than the ambient light brightness needing light supplement when the front camera takes a picture.
detecting the ambient light brightness during photographing, and when the ambient light brightness is detected to be higher than the ambient light brightness needing light supplement during photographing by the front camera, photographing by the front camera under the current ambient light brightness without light supplement;
when the ambient light brightness is detected to be smaller than the ambient light brightness needing light supplement when the front camera shoots, the front camera shoots under the current ambient light brightness and needs light supplement control processing.
further, the S100 further includes:
s110, when the mobile terminal opens the front camera to shoot, the ambient light brightness during shooting is detected, and when the detected ambient light brightness is larger than the ambient light brightness needing light supplement during shooting of the front camera, the front camera shoots under the current ambient light brightness without light supplement.
And S200, when the ambient light brightness is lower than the ambient light brightness needing light supplement when the front camera takes a picture, sending a light brightness detection signal to a system of the mobile terminal, and controlling the front camera to supplement light.
According to the invention, the front camera controls the front camera to photograph to supplement light and turn on and off, and when the front camera is turned on, a driving signal is sent to control the brightness of the sensing environment light.
And when the brightness of the ambient light is sensed to be smaller than the brightness of the ambient light needing light supplement when the front camera shoots, comparing the brightness of the ambient light with the brightness of the ambient light needing light supplement.
Sending light luminance detection signal 1 control and opening its inside light filling function, transmission the light filling light that leading camera shot needs handles light filling light, processing, light filling light passes through the filtering processing back, forms the light ring, the light ring spreads out light luminance, makes ambient brightness when leading camera shot strengthens.
further, the S200 specifically includes:
s210, sensing the brightness of ambient light when the brightness of the ambient light needing light supplement is obtained when the front camera is used for photographing, and comparing the brightness of the ambient light with the brightness of the ambient light needing light supplement;
And S220, when the ambient light brightness is lower than the ambient light brightness needing light supplement when the front camera takes a picture, sending a light brightness detection signal to a system of the mobile terminal, and controlling the front camera to supplement light.
step S300, the mobile terminal transmits light supplementing light rays required by photographing of the front camera, strong light rays in the light supplementing light rays required by photographing of the front camera are filtered, the light supplementing light rays form an aperture after filtering processing, and the aperture diffuses light brightness.
In the invention, because the light rays of the front camera during photographing light supplement are required to be soft and have moderate brightness, strong light rays of the light supplement light rays of the front camera during photographing need to be filtered. And if the light ray with moderate brightness is Lux0, the brightness of the strong light ray is Lux1, and the light ray with weaker brightness is Lux2, then Lux1, Lux0 and Lux2 are set.
And the mobile terminal dynamically filters out strong light rays Lux1 in the light supplementing light rays for photographing by the front camera according to the change of the power supply voltage of the mobile terminal. The power supply voltage V of the light supplementing and filtering unit 20 is controlled and output by the power management module, and the voltage signal V output by the power management module is output by the voltage control module.
the voltage control module adjusts the power supply voltage V according to the brightness change of the light supplementing light rays shot by the front camera, and then controls the filtering intensity of the light supplementing and filtering, namely the filtering intensity is related to the power supply voltage V output by the voltage control module.
Further, the S300 specifically includes:
s310, if the light ray with moderate light brightness is Lux0, the strong light brightness is Lux1, and the weak light brightness is Lux2, then Lux1> Lux0> Lux 2;
s320, dynamically filtering out strong light rays Lux1 in the light supplementing light rays for photographing by the front camera according to the change of the power supply voltage;
S330, when the brightness of the light supplementing light rays shot by the front camera is increased, namely Lux1 is increased, the output power supply voltage V is controlled to be increased, and the filtering intensity is increased;
S340, when the brightness of the light supplementing light rays shot by the front camera is reduced, namely the Lux1 is reduced, the output power supply voltage V is controlled to be reduced, and the filtering intensity is reduced;
And S350, forming an aperture after the light supplementing light passes through the light supplementing and filtering treatment, and diffusing the light brightness by the aperture.
And step S400, when the current during light supplement is smaller than the current during moderate light brightness, sending a current comparison signal to the mobile terminal to cut off a power supply voltage signal, and stopping the light supplement and filtering.
in the invention, the current I of the supplementary lighting is detected, when the current I of the supplementary lighting is larger than the current I0 when the light brightness is moderate, a current comparison signal 1 is sent to the voltage control module, and the voltage control module outputs a voltage signal V1 to control the filtering intensity of the supplementary lighting filtering to be increased.
When the current I of the light supplement is smaller than the current I0 when the light brightness is moderate, a current comparison signal 2 is sent to the voltage control module, the voltage control module cuts off a power supply voltage signal, and the light supplement and filtering unit stops working.
Further, the S400 specifically includes:
S410, the mobile terminal detects a current I during light supplement, and when the current I for comparing light supplement is larger than the current I0 during moderate light brightness, a current comparison signal 1 is sent to control an output voltage signal V1, and the filtering intensity of the light supplement filtering is increased;
S420, when the current I for comparing light supplement is smaller than the current I0 when the light brightness is moderate, sending a current comparison signal 2 to control the power supply voltage signal to be switched off, and stopping the light supplement filtering;
s430, when the fact that the brightness of the ambient light is larger than the brightness of the ambient light needing light supplement when the front camera shoots is sensed, the brightness of the ambient light is sensed, and the brightness of the ambient light is compared with the brightness of the ambient light needing light supplement through light brightness contrast;
and S440, sending a light brightness detection signal 2 to control the closing of the light supplement operation inside the front camera, wherein the light supplement is not needed when the front camera takes a picture.
based on the above embodiment, the present invention further provides a system for supplementing light for photographing by using a front camera of a mobile terminal, and fig. 2 is a functional schematic block diagram of a preferred embodiment of the system for supplementing light for photographing by using a front camera of a mobile terminal according to the present invention.
As shown in fig. 2, a system for supplementing light for photographing by a front-facing camera of a mobile terminal according to an embodiment of the present invention includes:
the brightness detection module 210 is configured to, when the mobile terminal opens the front-facing camera to take a picture, determine whether the currently detected ambient brightness is less than the ambient brightness that needs to be supplemented with light when the front-facing camera takes a picture; as described above.
The light supplementing module 220 is configured to send a light brightness detection signal to a system of the mobile terminal to control the front-facing camera to supplement light when the ambient light brightness is lower than the ambient light brightness required to supplement light when the front-facing camera takes a picture; as described above.
the light filtering module 230 is used for the mobile terminal to emit light supplementing light rays required by the front camera for photographing, filtering strong light rays in the light supplementing light rays required by the front camera for photographing, and forming an aperture after the light supplementing light rays are subjected to light filtering processing, wherein the aperture diffuses the light brightness; as described above.
The light supplement light control module 240 is configured to send a current comparison signal to the mobile terminal to disconnect a power supply voltage signal when the current for comparing light supplement is smaller than the current for light with moderate brightness, and stop the light supplement filtering; as described above.
Further, the system of light filling is shot to the leading camera of mobile terminal, wherein, luminance detection module still includes:
The normal photographing unit is used for detecting the ambient light brightness during photographing when the front camera is opened by the mobile terminal for photographing, and when the detected ambient light brightness is higher than the ambient light brightness needing light supplement during photographing by the front camera, the front camera photographs under the current ambient light brightness without light supplement; as described above.
The system for supplementing light for photographing by the front camera of the mobile terminal comprises a light supplementing module, a light supplementing module and a control module, wherein the light supplementing module specifically comprises:
The brightness sensing unit is used for sensing the brightness of the ambient light when the brightness of the ambient light needing light supplement is obtained when the front camera takes a picture, and comparing the brightness of the ambient light with the brightness of the ambient light needing light supplement; as described above.
the brightness comparison unit is used for sending a light brightness detection signal to a system of the mobile terminal and controlling the front camera to supplement light when the ambient light brightness is less than the ambient light brightness needing light supplement when the front camera takes a picture; as described above.
the system for supplementing light for photographing by the front camera of the mobile terminal comprises a light filtering module, wherein the light filtering module specifically comprises:
The brightness setting unit is used for setting the light ray with moderate brightness as Lux0, the strong light ray brightness as Lux1 and the weak light ray brightness as Lux2, and then the Lux1> Lux0> Lux 2; as described above.
The strong light filtering unit is used for dynamically filtering strong light Lux1 in the light supplementing light for photographing by the front camera according to the change of the power supply voltage; as described above.
The first filtering unit is used for controlling the output power supply voltage V to be increased and the filtering intensity to be increased when the brightness of the supplementary lighting light rays shot by the front camera is increased, namely the Lux1 is increased; as described above.
the second filtering unit is used for controlling the output power supply voltage V to be reduced and the filtering intensity to be reduced when the brightness of the supplementary lighting light rays shot by the front camera is reduced, namely the Lux1 is reduced; as described above.
the light diffusion unit is used for forming an aperture after the light supplementing light passes through the light supplementing and filtering treatment, and the aperture diffuses the light brightness; as described above.
the system for supplementing light for photographing by the front camera of the mobile terminal comprises a light supplementing light control module, wherein the light supplementing light control module specifically comprises:
The first light supplement current comparison unit is used for detecting a current I during light supplement of the mobile terminal, and when the current I during light supplement is greater than the current I0 during moderate light brightness, a current comparison signal 1 is sent to control an output voltage signal V1, so that the filtering intensity of light supplement filtering is increased; as described above.
The second light supplementing current comparison unit is used for sending a current comparison signal 2 to control the power supply voltage signal to be switched off when the current I for comparing light supplementation is smaller than the current I0 when the light brightness is moderate, and the light supplementing filter stops working; as described above.
the sensing comparison unit is used for sensing the brightness of the ambient light and comparing the brightness of the ambient light with the brightness of the ambient light needing light supplement through light brightness comparison when the brightness of the ambient light is sensed to be larger than the brightness of the ambient light needing light supplement when the front camera shoots; as described above.
the light supplementing closing unit is used for sending a light brightness detection signal 2 to control closing of light supplementing operation inside the front camera, and light supplementing is not needed when the front camera takes a picture; as described above.
in summary, the present invention discloses a method and a system for supplementing light for photographing by a front camera of a mobile terminal, wherein when the front camera is turned on for photographing by the mobile terminal, whether the currently detected ambient light brightness is less than the ambient light brightness required to be supplemented by light for photographing by the front camera is determined; when the ambient light brightness is lower than the ambient light brightness needing light supplement when the front camera takes a picture, sending a light brightness detection signal to a system of the mobile terminal, and controlling the front camera to supplement light; the mobile terminal transmits light supplementing light rays required by photographing of the front camera, strong light rays in the light supplementing light rays photographed by the front camera are filtered, the light supplementing light rays are filtered to form an aperture, and the aperture diffuses light brightness; when the current in the comparative light supplement is smaller than the current in the moderate light brightness, a current comparison signal is sent to the mobile terminal to cut off the power supply voltage signal, and the light supplement and filtering stops working. The invention detects that the ambient light brightness is less than the ambient light brightness needing light supplement when the front camera shoots, the aperture is softly and slowly expanded by the light supplemented light, and the aperture emits the light brightness, so that the ambient brightness during shooting is enhanced.
Of course, it will be understood by those skilled in the art that all or part of the processes of the methods of the above embodiments may be implemented by a computer program instructing relevant hardware (such as a processor, a controller, etc.), and the program may be stored in a computer readable storage medium, and when executed, the program may include the processes of the above method embodiments. The storage medium may be a memory, a magnetic disk, an optical disk, etc.
it is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
Claims (8)
1. a method for supplementing light during photographing of a front camera of a mobile terminal is characterized by comprising the following steps:
step A: when the mobile terminal opens the front camera to take a picture, judging whether the currently detected ambient light brightness is less than the ambient light brightness needing light supplement when the front camera takes a picture;
And B: when the ambient light brightness is lower than the ambient light brightness needing light supplement when the front camera takes a picture, sending a light brightness detection signal to a system of the mobile terminal, and controlling the front camera to supplement light;
And C: the mobile terminal transmits light supplementing light rays required by photographing of the front camera, strong light rays in the light supplementing light rays photographed by the front camera are filtered, the light supplementing light rays are filtered to form an aperture, and the aperture diffuses light brightness;
step D: when the current in the comparative light supplement is smaller than the current in the moderate light brightness, a current comparison signal is sent to the mobile terminal to cut off the power supply voltage signal, and the light supplement and filtering stops working.
2. the method for supplementing light by photographing with a front-facing camera of a mobile terminal according to claim 1, wherein the step a further comprises:
Step A1: when the mobile terminal opens the front camera to shoot, the ambient light brightness during shooting is detected, and when the detected ambient light brightness is greater than the ambient light brightness needing light supplement during shooting by the front camera, the front camera shoots under the current ambient light brightness without light supplement.
3. the method for supplementing light by photographing with a front-facing camera of a mobile terminal according to claim 1, wherein the step C specifically comprises:
step C1: if the light ray with moderate light brightness is Lux0, the brightness of the strong light ray is Lux1, and the brightness of the weak light ray is Lux2, then Lux1, Lux0 and Lux2 are set;
Step C2: according to the change of the power supply voltage, dynamically filtering out strong light rays Lux1 in the light supplementing light rays for photographing by the front camera;
Step C3: when the brightness of strong light rays in the light supplementing light rays shot by the front camera is increased, namely the Lux1 is increased, the output power supply voltage V is controlled to be increased, and the filtering intensity is increased;
step C4: when the brightness of strong light rays in the light supplementing light rays shot by the front camera is reduced, namely the Lux1 is reduced, the output power supply voltage V is controlled to be reduced, and the filtering intensity is reduced;
Step C5: and when the light supplementing light passes through the light supplementing and filtering treatment, an aperture is formed, and the aperture diffuses the light brightness.
4. the method for supplementing light by photographing with a front-facing camera of a mobile terminal according to claim 1, wherein the step D specifically comprises:
step D1: the mobile terminal detects a current I during light supplement, and when the current I for comparing light supplement is larger than the current I0 during moderate light brightness, a current comparison signal 1 is sent to control an output voltage signal V1, and the filtering intensity of light supplement filtering is increased;
Step D2: when the current I for comparing light supplement is smaller than the current I0 when the light brightness is moderate, sending a current comparison signal 2 to control the power supply voltage signal to be switched off, and stopping the light supplement filtering;
Step D3: when the brightness of the ambient light is sensed to be larger than the brightness of the ambient light needing light supplement when the front camera shoots, the brightness of the ambient light is sensed, and the brightness of the ambient light is compared with the brightness of the ambient light needing light supplement through light brightness comparison;
step D4: sending light brightness detection signal 2 control closes its inside light filling operation, leading camera is shot and need not carry out the light filling.
5. the utility model provides a system for light filling is shot to leading camera of mobile terminal which characterized in that, the system for light filling is shot to leading camera of mobile terminal includes:
the mobile terminal comprises a light brightness detection module, a light source module and a light source module, wherein the light brightness detection module is used for judging whether the currently detected ambient light brightness is smaller than the ambient light brightness needing light supplement when the front camera is used for shooting when the front camera is opened for shooting;
the light supplementing module is used for sending a light brightness detection signal to a system of the mobile terminal and controlling the front camera to supplement light when the ambient light brightness is less than the ambient light brightness needing light supplementation when the front camera takes a picture;
The light filtering module is used for transmitting light supplementing light rays required by photographing of the front camera by the mobile terminal, filtering strong light rays in the light supplementing light rays required by photographing of the front camera, forming an aperture after the light supplementing light rays are subjected to light filtering processing, and diffusing the light brightness by the aperture;
and the light supplementing light control module is used for sending a current comparison signal to the mobile terminal to cut off a power supply voltage signal when the current during light supplementing comparison is smaller than the current during moderate light brightness, and the light supplementing filtering stops working.
6. The system for supplementing light by photographing through a front-facing camera of a mobile terminal according to claim 5, wherein the brightness detection module further comprises:
And the normal photographing unit is used for detecting the ambient light brightness during photographing when the front camera is opened for photographing when the mobile terminal, and when the detected ambient light brightness is greater than the ambient light brightness needing light supplement during photographing by the front camera, the front camera photographs under the current ambient light brightness without light supplement.
7. The system for supplementing light by photographing through a front-facing camera of a mobile terminal according to claim 5, wherein the light filtering module specifically comprises:
the brightness setting unit is used for setting the light ray with moderate brightness as Lux0, the strong light ray brightness as Lux1 and the weak light ray brightness as Lux2, and then the Lux1> Lux0> Lux 2;
The strong light filtering unit is used for dynamically filtering strong light Lux1 in the light supplementing light for photographing by the front camera according to the change of the power supply voltage;
the first light filtering unit is used for controlling the output power supply voltage V to be increased and the light filtering intensity to be increased when the brightness of strong light rays in the light supplementing light rays shot by the front camera is increased, namely the Lux1 is increased;
the second filtering unit is used for controlling the output power supply voltage V to be reduced and the filtering intensity to be reduced when the brightness of strong light rays in the light supplementing light rays shot by the front camera is reduced, namely the Lux1 is reduced;
and the light diffusion unit is used for forming an aperture after the light supplementing light passes through the light supplementing and filtering treatment, and the aperture diffuses the light brightness.
8. The system for supplementing light for photographing by using a front-facing camera of a mobile terminal according to claim 5, wherein the light supplementing light control module specifically comprises:
the first light supplement current comparison unit is used for detecting a current I during light supplement of the mobile terminal, and when the current I during light supplement is greater than the current I0 during moderate light brightness, a current comparison signal 1 is sent to control an output voltage signal V1, so that the filtering intensity of light supplement filtering is increased;
the second light supplementing current comparison unit is used for sending a current comparison signal 2 to control the power supply voltage signal to be switched off when the current I for comparing light supplementation is smaller than the current I0 when the light brightness is moderate, and the light supplementing filter stops working;
the sensing comparison unit is used for sensing the brightness of the ambient light and comparing the brightness of the ambient light with the brightness of the ambient light needing light supplement through light brightness comparison when the brightness of the ambient light is sensed to be larger than the brightness of the ambient light needing light supplement when the front camera shoots;
And the light supplement closing unit is used for sending a light brightness detection signal 2 to control closing of the light supplement operation inside the light supplement closing unit, and the front camera does not need to supplement light when taking a picture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611072807.1A CN106791462B (en) | 2016-11-29 | 2016-11-29 | Method and system for supplementing light during photographing of front camera of mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611072807.1A CN106791462B (en) | 2016-11-29 | 2016-11-29 | Method and system for supplementing light during photographing of front camera of mobile terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106791462A CN106791462A (en) | 2017-05-31 |
| CN106791462B true CN106791462B (en) | 2019-12-10 |
Family
ID=58905465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611072807.1A Active CN106791462B (en) | 2016-11-29 | 2016-11-29 | Method and system for supplementing light during photographing of front camera of mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106791462B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108848214A (en) * | 2018-06-07 | 2018-11-20 | 信利光电股份有限公司 | A kind of comprehensive screen mobile phone |
| CN111770281A (en) * | 2018-07-30 | 2020-10-13 | 华为技术有限公司 | Time division multiplexing supplementary lighting imaging device and method |
| CN115484384B (en) * | 2021-09-13 | 2023-12-01 | 华为技术有限公司 | Method and device for controlling exposure and electronic equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103312986A (en) * | 2013-06-08 | 2013-09-18 | 康佳集团股份有限公司 | Mobile terminal based front photographing fill light method and mobile terminal |
| CN104683702A (en) * | 2015-03-25 | 2015-06-03 | 广东欧珀移动通信有限公司 | Method and device for supplementing light during photographing as well as mobile terminal |
| CN205017409U (en) * | 2015-08-26 | 2016-02-03 | 任永春 | Multi -functional DV |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9171221B2 (en) * | 2010-07-18 | 2015-10-27 | Spatial Cam Llc | Camera to track an object |
-
2016
- 2016-11-29 CN CN201611072807.1A patent/CN106791462B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103312986A (en) * | 2013-06-08 | 2013-09-18 | 康佳集团股份有限公司 | Mobile terminal based front photographing fill light method and mobile terminal |
| CN104683702A (en) * | 2015-03-25 | 2015-06-03 | 广东欧珀移动通信有限公司 | Method and device for supplementing light during photographing as well as mobile terminal |
| CN205017409U (en) * | 2015-08-26 | 2016-02-03 | 任永春 | Multi -functional DV |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106791462A (en) | 2017-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9030600B2 (en) | Method and apparatus for controlling flash | |
| WO2021052232A1 (en) | Time-lapse photography method and device | |
| KR101710971B1 (en) | Shooting method, apparatus, and terminal | |
| US7414667B2 (en) | Image sensing apparatus, image processing apparatus, and control method therefor for relaxing a red-eye effect | |
| CN105049726B (en) | A kind of mobile terminal photographic method and mobile terminal | |
| CN106454077B (en) | Shooting method, shooting device and terminal | |
| JP2017519458A (en) | Imaging parameter adjusting method, apparatus, program, and recording medium | |
| CN104184956A (en) | Mobile communication terminal photographing method and system and mobile communication terminal | |
| CN105959581A (en) | Electronic device having dynamically controlled flashlight for image capturing and related control method | |
| CN106791462B (en) | Method and system for supplementing light during photographing of front camera of mobile terminal | |
| CN116055897B (en) | Photographing method and related equipment thereof | |
| KR20100006488A (en) | Photographing control method and apparatus for prohibiting flash | |
| CN102970482A (en) | Method for automatically starting pinkeye preventing model in photographing and photographing equipment thereof | |
| JP2017028376A (en) | Light emission control apparatus and control method of the same | |
| CN106657798A (en) | Photographing method for intelligent terminal | |
| JP4658015B2 (en) | Digital camera and control method thereof | |
| WO2023077939A1 (en) | Camera switching method and apparatus, and electronic device and storage medium | |
| CN116055855B (en) | Image processing method and related device | |
| WO2023131028A1 (en) | Image processing method and related device | |
| CN111050026B (en) | Image noise reduction control method, terminal and computer readable storage medium | |
| CN115604572B (en) | Image acquisition method, electronic device and computer readable storage medium | |
| WO2023160221A1 (en) | Image processing method and electronic device | |
| JP5137343B2 (en) | Imaging apparatus and imaging method | |
| CN114125257A (en) | Camera photographing method, camera system and camera | |
| CN117597914A (en) | Image processing method, device and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230627 Address after: 400000 building 18, Zone C, Jianqiao Park, Dadukou District, Chongqing Patentee after: Reed communication technology (Chongqing) Co.,Ltd. Address before: 516006 Zhongkai hi tech Zone, Huizhou, Guangdong, 86 Chang seven Road West Patentee before: HUIZHOU TCL MOBILE COMMUNICATION Co.,Ltd. |