WO2018112763A1 - Procédé et dispositif de traitement d'image, procédé et dispositif de commande, et dispositif d'imagerie et dispositif électronique - Google Patents

Procédé et dispositif de traitement d'image, procédé et dispositif de commande, et dispositif d'imagerie et dispositif électronique Download PDF

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Publication number
WO2018112763A1
WO2018112763A1 PCT/CN2016/111147 CN2016111147W WO2018112763A1 WO 2018112763 A1 WO2018112763 A1 WO 2018112763A1 CN 2016111147 W CN2016111147 W CN 2016111147W WO 2018112763 A1 WO2018112763 A1 WO 2018112763A1
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Prior art keywords
image
overexposed
exposure amount
exposure
exposed
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PCT/CN2016/111147
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English (en)
Chinese (zh)
Inventor
孙剑波
Original Assignee
广东欧珀移动通信有限公司
Priority date (The priority date 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 date listed.)
Filing date
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Application filed by 广东欧珀移动通信有限公司 filed Critical 广东欧珀移动通信有限公司
Priority to PCT/CN2016/111147 priority Critical patent/WO2018112763A1/fr
Priority to TW106139390A priority patent/TWI626620B/zh
Priority to US15/814,791 priority patent/US10692199B2/en
Priority to KR1020197018549A priority patent/KR102171625B1/ko
Priority to EP17208506.0A priority patent/EP3340608B1/fr
Priority to PCT/CN2017/117289 priority patent/WO2018113685A1/fr
Priority to ES17208506T priority patent/ES2761593T3/es
Priority to JP2019533587A priority patent/JP6803473B2/ja
Priority to AU2017379019A priority patent/AU2017379019B2/en
Publication of WO2018112763A1 publication Critical patent/WO2018112763A1/fr
Priority to ZA2019/04191A priority patent/ZA201904191B/en

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    • 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

Definitions

  • the present invention relates to image processing technology, and in particular, to an image processing method, a control method, an image processing device, a control device, an imaging device, and an electronic device.
  • the fuzzy algorithm is an average algorithm that averages the pixel brightness values of the light source when blurring the light source in the photo. The light source in the photo appears dim and the effect is not good.
  • Embodiments of the present invention aim to solve at least one of the technical problems existing in the prior art. To this end, embodiments of the present invention are required to provide an image processing method, a control method, an image processing device, a control device, an imaging device, and an electronic device.
  • the invention provides an image processing method, the image processing method comprising the following steps:
  • Blooming the suitable exposed image to obtain a blurred exposure image the blurred exposure image including a blurred overexposure portion corresponding to the overexposed portion
  • the underexposed image is blurred to obtain a blurred underexposure image, and the underexposed image is obtained by exposure using a second exposure amount, the underexposed image and the scene of the suitable exposed image
  • the underexposed image includes a material portion corresponding to the overexposed portion
  • the blurred underexposure image includes a blur material portion corresponding to the overexposed portion
  • the second exposure amount is less than the first An exposure amount such that a pixel value of the material portion is smaller than an upper limit of a range of pixel values of the material portion;
  • the imaginary overexposed portion in the blurred exposure image is replaced with the primordial overexposed portion to obtain a merged image.
  • the step of identifying whether an overexposed portion is present in the exposed image comprises:
  • the step of identifying whether an overexposed portion is present in the exposed image comprises:
  • the adjacent overexposed pixels When the adjacent overexposed pixels are present, it is determined that the adjacent overexposed pixels belong to the overexposed portion.
  • the predetermined pixel value is an upper limit of a range of pixel values of the expansive image.
  • the step of blurring the expansive image to obtain a blurred exposure image is implemented using a Gaussian blur algorithm; or/and
  • the step of blurring the underexposed image to obtain the blurred underexposure image is implemented by using a Gaussian blur algorithm.
  • the step of lifting the brightness of the portion of the blurred material to obtain a simulated overexposed portion includes:
  • N is a ratio between the first exposure amount and the second exposure amount.
  • the image processing method comprises:
  • the blurred exposure image is output when the overexposed portion is absent.
  • the present invention provides a control method for controlling an imaging device, the control method comprising the following steps:
  • the adaptive image and the underexposed image are processed by the image processing method according to any of the above embodiments.
  • the imaging device includes a camera
  • the step of controlling the imaging device to output an appropriately exposed image and an underexposed image of the same scene includes the following steps:
  • the camera is controlled to be sequentially exposed with the first exposure amount and the second exposure amount to obtain the exposed image and the underexposed image.
  • the imaging device includes a first camera and a second camera
  • the step of controlling the imaging device to output an appropriately exposed image and an underexposed image of the same scene includes the following steps:
  • the first camera and the second camera are controlled to be exposed with the first exposure amount and the second exposure amount, respectively, to obtain the exposed image and the underexposed image.
  • the present invention provides an image processing apparatus, the image processing apparatus comprising:
  • An identification module configured to identify whether an overexposed portion exists in the exposed image, and the exposed image is obtained by exposing the first exposure amount that matches the light environment;
  • a first blurring module configured to blur the exposed image to obtain a blurred exposure image, where the blurred exposure image includes a blurred overexposure portion corresponding to the overexposed portion;
  • a second blurring module configured to: when the overexposed portion exists, blur the underexposed image to obtain a blurred underexposure image, wherein the underexposed image is obtained by using a second exposure amount exposure, the underexposure image
  • the underexposed image includes a material portion corresponding to the overexposed portion
  • the blurred underexposure image includes a blur material portion corresponding to the overexposed portion
  • the second exposure amount is smaller than the first exposure amount such that a pixel value of the material portion is smaller than an upper limit of a pixel value range of the material portion;
  • a brightening module configured to: boost a brightness of the portion of the imaginary material to obtain an original overexposed portion
  • a merging module configured to replace the imaginary overexposed portion in the imaginary exposing image with the primordial overexposed portion to obtain a merged image.
  • the identification module comprises:
  • a first determining sub-module configured to determine, according to the histogram of the exposing image, whether the overexposed pixel in the exposing image is more than or equal to a first predetermined number, and the pixel value of the overexposed pixel is greater than or equal to a predetermined pixel Value;
  • the first determining submodule is configured to determine that the overexposed portion exists when the overexposed pixel is more than or equal to the first predetermined number.
  • the identification module further includes:
  • a second determining sub-module configured to determine, in the presence of the over-exposed portion, whether there is an adjacent over-exposed pixel in the exposed image, and the number of adjacent over-exposed pixels is greater than or equal to Two predetermined numbers;
  • a second determining submodule configured to determine that the adjacent overexposed pixels belong to the overexposed portion when the adjacent overexposed pixels are present.
  • the predetermined pixel value is an upper limit of a range of pixel values of the expansive image.
  • the first blurring module uses a Gaussian blurring algorithm to blur the exposed image to obtain a blurred exposure image; or/and
  • the second blurring module uses a Gaussian blurring algorithm to blur the underexposed image to obtain a blurred underexposure image.
  • the brightening module is configured to increase a brightness of the blurred underexposure image by N times to obtain the pseudo-overexposure portion, wherein N is the first exposure amount and the The ratio between the second exposures.
  • the image processing apparatus further includes:
  • a first output module configured to output the merged image
  • a second output module configured to output the blurred exposure image when the overexposed portion is absent.
  • the present invention provides a control device for controlling an imaging device, the control device comprising:
  • control module configured to control the image forming apparatus to output an exposed image and an underexposed image of the same scene
  • An image processing apparatus as described in any of the above embodiments and electrically connected to the control module.
  • the imaging device includes a camera
  • the control module includes:
  • a first exposure determining unit configured to determine the first exposure amount according to a light environment
  • a second exposure determining unit configured to determine the second exposure amount according to the overexposed portion
  • control unit configured to control the camera to sequentially expose the first exposure amount and the second exposure amount to obtain the exposed image and the underexposed image.
  • the imaging device includes a first camera and a second camera
  • the control module includes:
  • a first exposure determining unit configured to determine the first exposure amount according to a light environment
  • a second exposure determining unit configured to determine the second exposure amount according to the overexposed portion
  • control unit configured to control the first camera and the second camera to respectively expose the first exposure amount and the second exposure amount to obtain the exposed image and the underexposure image.
  • the invention provides an imaging device, the imaging device comprising:
  • control module electrically connected to the camera, configured to control the camera to output an exposed image and an underexposed image of the same scene
  • An image processing apparatus as described in any of the above embodiments and electrically connected to the control module.
  • control module comprises:
  • a first exposure determining unit configured to determine the first exposure amount according to a light environment
  • a second exposure determining unit configured to determine the second exposure amount according to the overexposed portion
  • a first control unit configured to control the camera to sequentially expose the first exposure amount and the second exposure amount to obtain the exposed image and the underexposed image.
  • the number of the cameras includes two, respectively a first camera and a second camera
  • the control module includes:
  • a first exposure determining unit configured to determine the first exposure amount according to a light environment
  • a second exposure determining unit configured to determine the second exposure amount according to the overexposed portion
  • a second control unit configured to control the first camera and the second camera to be exposed by the first exposure amount and the second exposure amount, respectively, to obtain the exposed image and the underexposed image.
  • the present invention provides an electronic device comprising the imaging device according to any of the above embodiments.
  • the electronic device includes any one of a mobile phone, a tablet computer, a notebook computer, a smart watch, a smart bracelet, a smart helmet, and smart glasses.
  • the imaging device comprises a front camera or/and a rear camera.
  • the present invention also provides an electronic device including a housing, a processor, a memory, a circuit board, and a power supply circuit.
  • the circuit board is disposed inside a space enclosed by the housing, and the processor and the memory are disposed in the On the board.
  • the power circuit for supplying power to respective circuits or devices of the electronic device; the memory for storing executable program code; the processor running by reading executable program code stored in the memory
  • the program corresponding to the executable program code is used to execute the image processing method according to any of the above embodiments or to execute the control method described in any of the above embodiments.
  • the present invention also provides a computer readable storage medium having instructions stored therein, when the processor of the electronic device executes the instructions, the electronic device performs an image processing method or execution according to any of the above embodiments The control method according to any of the above embodiments.
  • the image processing method, the image processing device, the control method, the control device, the imaging device, the electronic device, and the computer readable storage medium in the present invention capture two images, one suitable exposure image, one underexposed image, and two images Both are blurred, and then the brightness of the underexposed image after blurring is brightened, and the part of the underexposed image is taken out, and the image is exposed in the blurred image to form a blur with a real spot effect.
  • the image has a good spot effect.
  • FIG. 1 is a flow chart showing an image processing method according to a first embodiment of the present invention.
  • FIG. 2 is a functional block diagram of an image processing apparatus according to a first embodiment of the present invention.
  • FIG. 3 is a flow chart showing a control method of the first embodiment of the present invention.
  • FIG. 4 is a schematic diagram of functional blocks of a control device according to a first embodiment of the present invention.
  • Fig. 5 is a schematic diagram showing the functional blocks of the image forming apparatus of the first embodiment of the present invention.
  • FIG. 6 is a schematic diagram of functional blocks of an electronic device according to a first embodiment of the present invention.
  • FIG. 7 is a schematic diagram of a physical object of the electronic device of FIG. 6.
  • FIG. 7 is a schematic diagram of a physical object of the electronic device of FIG. 6.
  • Figure 8 is a schematic view showing the operation of the electronic device of the present invention.
  • FIG. 9 is a flow chart showing an image processing method according to a second embodiment of the present invention.
  • Fig. 10 is a functional block diagram of an image processing apparatus according to a second embodiment of the present invention.
  • Figure 11 is a histogram of an image of the present invention.
  • Fig. 12 is a flow chart showing the control method of the second embodiment of the present invention.
  • Fig. 13 is a schematic diagram showing the functional blocks of the control device according to the second embodiment of the present invention.
  • Fig. 14 is a schematic diagram showing the functional blocks of an image forming apparatus according to a second embodiment of the present invention.
  • 15 is a schematic diagram of functional blocks of an electronic device according to a second embodiment of the present invention.
  • Fig. 16 is a flow chart showing an image processing method according to a third embodiment of the present invention.
  • Figure 17 is a diagram showing the functional blocks of an image processing apparatus according to a third embodiment of the present invention.
  • Fig. 18 is a flow chart showing the control method of the third embodiment of the present invention.
  • Fig. 19 is a schematic diagram showing the functional blocks of the control device according to the third embodiment of the present invention.
  • FIG. 20 is a schematic diagram of functional blocks of an image forming apparatus according to a third embodiment of the present invention.
  • 21 is a schematic diagram of functional blocks of an electronic device according to a third embodiment of the present invention.
  • Fig. 22 is a flow chart showing an image processing method according to a fourth embodiment of the present invention.
  • Figure 23 is a diagram showing the functional blocks of an image processing apparatus according to a fourth embodiment of the present invention.
  • Fig. 24 is a flow chart showing the control method of the fourth embodiment of the present invention.
  • Figure 25 is a diagram showing the functional blocks of a control device according to a fourth embodiment of the present invention.
  • Fig. 26 is a schematic diagram showing the functional blocks of an image forming apparatus according to a fourth embodiment of the present invention.
  • Figure 27 is a diagram showing the functional blocks of an electronic device according to a fourth embodiment of the present invention.
  • 28 is a flow diagram of controlling an imaged device to output an appropriately exposed image and an underexposed image of the same scene, in accordance with some embodiments of the present invention.
  • 29 is a functional block diagram of a control module of some embodiments of the present invention.
  • FIG. 30 is a flow diagram showing the control of an image-forming device to output an appropriately exposed image and an underexposed image of the same scene, in accordance with some embodiments of the present invention.
  • 31 is a functional block diagram of a control module of some embodiments of the present invention.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include one or more of the described features either explicitly or implicitly.
  • the meaning of "a plurality" is two or more unless specifically and specifically defined otherwise.
  • connection In the description of the present invention, it should be noted that the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; may be mechanically connected, or may be electrically connected or may communicate with each other; may be directly connected or indirectly connected through an intermediate medium, may be internal communication of two elements or interaction of two elements relationship. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • the present invention provides an image processing method according to a plurality of embodiments, a control method of a plurality of embodiments, an image processing apparatus according to a plurality of embodiments, a control apparatus of a plurality of embodiments, an imaging apparatus of a plurality of embodiments, and a plurality of embodiments Electronic device.
  • the image processing methods of the plurality of embodiments are sequentially numbered
  • the control methods of the plurality of embodiments are sequentially numbered
  • the image processing apparatuses of the plurality of embodiments are sequentially numbered
  • the control apparatuses of the plurality of embodiments are described.
  • the sequential numbering will be described, the imaging devices of the plurality of embodiments will be sequentially numbered, and the electronic devices of the plurality of embodiments will be sequentially numbered.
  • the image processing method of each embodiment may correspond to a control method of one embodiment, an image processing device corresponding to one embodiment, a control device corresponding to one embodiment, an imaging device corresponding to one embodiment, and a corresponding embodiment.
  • Electronic device for example, the image processing method of the first embodiment may correspond to the control method of the first embodiment, the image processing device that can correspond to the first embodiment, the control device that can correspond to the first embodiment, and the imaging device that can correspond to the first embodiment.
  • the image processing method according to the second embodiment can correspond to the control method of the second embodiment, the image processing device according to the second embodiment, and the control device according to the second embodiment.
  • the imaging device according to the first embodiment and the electronic device according to the second embodiment can be used.
  • an image processing method includes the following steps:
  • S1 identifying whether there is an overexposed portion in the exposed image, and the suitable exposure image is an image obtained by exposing the first exposure amount matched with the light environment;
  • the underexposure image is blurred to obtain a blurred underexposure image
  • the underexposed image is obtained by exposure with a second exposure amount
  • the underexposed image is the same as the scene of the suitable exposed image
  • the underexposed image includes a portion of the material corresponding to the overexposed portion
  • the blurred underexposure image includes a portion of the blur material corresponding to the overexposed portion
  • the second exposure amount is smaller than the first exposure amount such that the pixel value of the material portion is smaller than the pixel value range of the material portion Upper limit (the purpose is not to overflow);
  • the step of blurring the exposed image to obtain the blurred exposure image may be implemented by using a Gaussian fuzzy algorithm;
  • the step of blurring the underexposed image to obtain a blurred underexposure image may be implemented using a Gaussian blur algorithm.
  • the step of increasing the brightness of the imaginary material portion to obtain the original overexposed portion may be to increase the brightness of the imaginary underexposed image by N times to obtain a pseudo overexposed portion, where N is between the first exposure amount and the second exposure amount. ratio.
  • the image processing method of the first embodiment described above can be realized by the image processing apparatus 111 of the first embodiment of the present invention.
  • the image processing apparatus 111 of the first embodiment of the present invention includes an identification module 1111, a first blurring module 1112, a second blurring module 1113, a brightening module 1114, and a merging module 1115, which can be respectively used to execute S1 to S5.
  • the identification module 1111 is configured to identify whether there is an overexposed portion in the exposed image, and the suitable exposure image is an image obtained by exposure with a first exposure amount that matches the light environment.
  • the first blurring module 1112 is configured to blur the exposed image to obtain a blurred exposure image
  • the blurred exposure image includes a blurred overexposure portion corresponding to the overexposed portion.
  • the second blurring module 1113 is configured to blur the underexposed image to obtain a blurred underexposure image when the overexposed portion is present, and the underexposed image is obtained by using the second exposure amount to expose the underexposed image and the exposed image.
  • the underexposed image includes a material portion corresponding to the overexposed portion
  • the blurred underexposure image includes a blur material portion corresponding to the overexposed portion
  • the second exposure amount is less than the first exposure amount such that the pixel value of the material portion is smaller than the material The upper limit of the range of pixel values.
  • the brightening module 1114 is configured to increase the brightness of the portion of the imaginary material to obtain a portion of the original overexposed portion.
  • the merging module 15 is configured to replace the imaginary overexposed portion in the imaginary exposing image with the primordial overexposed portion to obtain a merged image.
  • the first blurring module 1112 uses a Gaussian blur algorithm to blur the suitable exposed image to obtain a blurred exposure image; or/and the second blurring module 1113 uses a Gaussian blur algorithm to blur the underexposed image to obtain a virtual image.
  • the step of lifting the module 1114 may be to increase the brightness of the portion of the imaginary material to obtain a portion of the imaginary overexposed portion, which is to increase the brightness of the imaginary underexposed image by N times to obtain a portion of the original overexposure portion, where N is the first exposure amount and the second portion. The ratio between the exposures.
  • control method of the first embodiment of the present invention is used to control the imaging device 10.
  • the control method includes the following steps:
  • S1 identifying whether there is an overexposed portion in the exposed image, and the suitable exposure image is an image obtained by exposing the first exposure amount matched with the light environment;
  • the underexposure image is blurred to obtain a blurred underexposure image
  • the underexposed image is obtained by exposure with a second exposure amount
  • the underexposed image is the same as the scene of the suitable exposed image
  • the underexposed image includes a portion of the material corresponding to the overexposed portion
  • the blurred underexposure image includes a portion of the blur material corresponding to the overexposed portion
  • the second exposure amount is smaller than the first exposure amount such that the pixel value of the material portion is smaller than the pixel value range of the material portion Upper limit (the purpose is not to overflow);
  • the step of blurring the image to obtain the blurred image may be implemented by using a Gaussian blur algorithm; or/and the step of blurring the underexposed image to obtain the image of the underexposed image may be implemented by using a Gaussian fuzzy algorithm.
  • the step of increasing the brightness of the imaginary material portion to obtain the original overexposed portion may be to increase the brightness of the imaginary underexposed image by N times to obtain a pseudo overexposed portion, where N is between the first exposure amount and the second exposure amount. ratio.
  • the control method of the above-described first embodiment can be realized by the control device 11 of the first embodiment of the present invention.
  • the control device 11 includes the image processing device 111 in the first embodiment and a control module 112 electrically connected to the image processing device 111.
  • the image processing device 111 is configured to perform steps S1 to S5, and the control module 112 is configured to perform step S6.
  • the structure of the image processing apparatus 111 is as described in the first embodiment, and will not be described herein.
  • the control module 112 is configured to control the imaging device 10 (shown in Figures 5-7) to output an appropriately exposed image and an underexposed image of the same scene.
  • an image forming apparatus 10 includes a control device 11 of the first embodiment and a camera 12 electrically connected to the control device 11 of the first embodiment.
  • the imaging device 10 of the present embodiment includes the image processing device 111 of the first embodiment, the control module 112, and the camera 12.
  • the control module 112 is electrically connected to both the camera 12 and the image processing device 111.
  • an electronic device 100 includes the imaging device 10 of the first embodiment.
  • the electronic device 100 may be any one of a mobile phone, a tablet computer, a notebook computer, a smart watch, a smart wristband, a smart helmet, smart glasses, other virtual reality wearable devices, and other augmented reality wearable devices.
  • the imaging device 10 may be a front camera or a rear camera.
  • the two imaging devices 10 may be a front camera and a rear camera, respectively; or both imaging devices 10 are front cameras; or both imaging devices 10 are rear cameras .
  • the imaging device 10 may be a camera disposed at any position, and may be a top camera, a bottom camera, a side wall camera, or the like in addition to the front camera and the rear camera.
  • the camera 12 captures an appropriately exposed image and an underexposed image for the same scene ( FIG. 8 illustrates for example, using two actually captured images, the scenes of the two images are not identical, but the present invention In the specific execution, the time for the exposure of the exposed image and the underexposure image is very short, and it is completely possible to achieve the same scene).
  • the suitable exposure image is obtained by exposure with a first exposure amount matched to the light environment, and the underexposure image is obtained by using a second exposure amount smaller than the first exposure amount.
  • the underexposed image includes a material portion (circular light source) corresponding to the overexposed portion (circular light source).
  • the material part (circular light source) is blurred to obtain a blurred material part (circular light source).
  • the brightness of the portion of the imaginary material is increased to obtain a partial overexposure portion, wherein the imaginary underexposure image is entirely brightened, and at this time, the brightness of the imaginary material portion is also brightened; or, it may be only brightening the imaginary The brightness of the material part.
  • the blurred overexposed portion in the blurred exposure image is replaced with the original overexposed portion to obtain a merged image.
  • the image processing method, the image processing device 111, the control method, the control device 11, the imaging device 10, and the electronic device 100 in the first embodiment of the present invention capture two images, one suitable exposure image, one underexposed image, and two The image is blurred, and then the brightness of the underexposed image is blurred, and the imitation original overexposed portion is taken out, and the blurred overexposed portion in the blurred exposure image is replaced with the original overexposed portion. Combine a blurred image with a real flare effect, and the spot effect is good.
  • the image processing method of the second embodiment of the present invention is substantially the same as the image processing method of the first embodiment. Further, the step of identifying whether there is an overexposed portion in the exposed image includes the following steps:
  • S11 Determine, according to the histogram of the suitable exposed image, whether the overexposed pixel in the exposed image is more than or equal to a first predetermined number, and the pixel value of the overexposed pixel is greater than or equal to a predetermined pixel value, and the predetermined pixel value is a pixel value of the exposed image.
  • the upper limit of the range such as a predetermined pixel value of 255;
  • the image processing method of the second embodiment described above can be realized by the image processing apparatus 111 of the second embodiment of the present invention.
  • the image processing device 111 of the second embodiment of the present invention has substantially the same structure as the image processing device 111 of the first embodiment, except that the identification module 1111 of the image processing device 111 of the second embodiment includes the first determination sub-module 11111. And the first determining sub-module 11112 can be used to perform steps S11 and S12, respectively.
  • the first determining sub-module 11111 is configured to determine, according to the histogram of the suitable exposed image, whether the overexposed pixel in the exposed image is more than or equal to a first predetermined number, and the pixel value of the overexposed pixel is greater than or equal to a predetermined pixel value.
  • the predetermined pixel value is an upper limit of a range of pixel values of the exposed image, for example, a predetermined pixel value is 255.
  • the first determining sub-module 11112 is configured to determine that there is an overexposed portion when the overexposed pixel is more than or equal to the first predetermined number.
  • the horizontal axis of the histogram of the suitable image represents the increment of the pixel value (gray value) from left to right
  • the vertical axis represents the pixel value (gray value) from bottom to top.
  • the number of pixels is incremented.
  • the pixel value (gray value) ranges from 0 to 255, that is, from black to white, and the higher the peak at a certain point, the more pixels are indicated at the pixel value (gray value).
  • the first predetermined number should be the number of pixels in the histogram near the right border, that is, the number of overexposed pixels, and the first predetermined number can be set to be one third of the total pixels. It should be noted that one third is only It is a schematic illustration and is not a limitation of the invention.
  • control method of the second embodiment of the present invention is substantially the same as the control method of the first embodiment.
  • step of identifying whether there is an overexposed portion in the exposed image includes the following steps:
  • S11 Determine, according to the histogram of the suitable exposed image, whether the overexposed pixel in the exposed image is more than or equal to a first predetermined number, and the pixel value of the overexposed pixel is greater than or equal to a predetermined pixel value, and the predetermined pixel value is a pixel value of the exposed image.
  • the upper limit of the range such as a predetermined pixel value of 255;
  • control method of the second embodiment described above can be realized by the control device 11 of the second embodiment of the present invention.
  • the control device 11 of the second embodiment of the present invention has substantially the same structure as the control device 11 of the first embodiment, except that the identification module 1111 of the control device 11 of the second embodiment includes a first determination sub-module 11111 and a first The determining sub-module 11112 can be used to perform steps S11 and S12, respectively.
  • the first determining sub-module 11111 is configured to determine, according to the histogram of the suitable exposed image, whether the overexposed pixel in the exposed image is more than or equal to a first predetermined number, and the pixel value of the overexposed pixel is greater than or equal to a predetermined pixel value.
  • the predetermined pixel value is an upper limit of a range of pixel values of the exposed image, for example, a predetermined pixel value is 255.
  • the first determining sub-module 11112 is configured to determine that there is an overexposed portion when the overexposed pixel is more than or equal to the first predetermined number.
  • the horizontal axis of the histogram of the suitable image represents the increment of the pixel value (gray value) from left to right
  • the vertical axis represents the pixel value (gray value) from bottom to top.
  • the number of pixels is incremented.
  • the pixel value (gray value) ranges from 0 to 255, that is, from black to white, and the higher the peak at a certain point, the more pixels are indicated at the pixel value (gray value).
  • the first predetermined number should be the number of pixels in the histogram near the right border, that is, the number of overexposed pixels, and the first predetermined number can be set to be one third of the total pixels. It should be noted that one third is only It is a schematic illustration and is not a limitation of the invention.
  • an image forming apparatus 10 includes a control device 11 of the second embodiment and a camera 12 electrically connected to the control device 11 of the second embodiment.
  • the imaging device 10 of the present embodiment includes the image processing device 111, the control module 112, and the camera 12 of the second embodiment.
  • the control module 112 is electrically connected to both the camera 12 and the image processing device 111.
  • an electronic device 100 includes the imaging device 10 of the second embodiment.
  • the electronic device 100 may be any one of a mobile phone, a tablet computer, a notebook computer, a smart watch, a smart wristband, a smart helmet, smart glasses, other virtual reality wearable devices, and other augmented reality wearable devices.
  • the imaging device 10 when the number of the imaging devices 10 is one, the imaging device 10 may be a front camera or a rear camera.
  • the two imaging devices 10 may be a front camera and a rear camera, respectively; or both imaging devices 10 are front cameras; or both imaging devices 10 are rear cameras .
  • the imaging device 10 may be a camera disposed at any position, and may be a top camera, a bottom camera, a side wall camera, or the like in addition to the front camera and the rear camera.
  • the image processing method, the image processing device 111, the control method, the control device 11, the imaging device 10, and the electronic device 100 in the second embodiment of the present invention capture two images, one suitable exposure image, one underexposed image, and two The image is blurred, and then the brightness of the underexposed image is blurred, and the imitation original overexposed portion is taken out, and the blurred overexposed portion in the blurred exposure image is replaced with the original overexposed portion. Combine a blurred image with a real flare effect, and the spot effect is good.
  • the image processing method of the third embodiment of the present invention is substantially the same as the image processing method of the first embodiment. Further, the step of identifying whether there is an overexposed portion in the exposed image includes the following steps:
  • S11 Determine, according to the histogram of the suitable exposed image, whether the overexposed pixel in the exposed image is more than or equal to a first predetermined number, and the pixel value of the overexposed pixel is greater than or equal to a predetermined pixel value, and the predetermined pixel value is a pixel value of the exposed image.
  • the upper limit of the range for example, the predetermined pixel value is 255;
  • the image processing method of the third embodiment described above can be realized by the image processing apparatus 111 of the third embodiment of the present invention.
  • the image processing device 111 of the third embodiment of the present invention has substantially the same structure as the image processing device 111 of the first embodiment, except that the recognition module 1111 of the image processing device 111 of the third embodiment includes the first determination sub-module 11111.
  • the first determining sub-module 11112, the second determining sub-module 11113, and the second determining sub-module 11114 are respectively configured to perform steps S11, S12, S13, and S14.
  • the first determining sub-module 11111 is configured to determine, according to the histogram of the suitable exposed image, whether the overexposed pixel in the exposed image is more than or equal to a first predetermined number, and the pixel value of the overexposed pixel is greater than or equal to a predetermined pixel value.
  • the predetermined pixel value is an upper limit of a range of pixel values of the exposed image, for example, a predetermined pixel value is 255.
  • the first determining sub-module 11112 is configured to determine that there is an overexposed portion when the overexposed pixel is more than or equal to the first predetermined number.
  • the second determining sub-module 11113 is configured to determine whether there is an adjacent over-exposed pixel in the exposed image when there is an over-exposed portion, and the number of adjacent over-exposed pixels is greater than or equal to a second predetermined number.
  • the second determining sub-module 11114 is configured to determine that the adjacent over-exposed pixels belong to the over-exposed portion when there is an adjacent over-exposed pixel.
  • the second predetermined number should be smaller than the first predetermined number, because the first predetermined number may include noise, and even the exposed image may include a plurality of adjacent overexposed pixels, for example, there are a plurality of discrete light sources, and the light sources are common Form the overexposed part.
  • the horizontal axis of the histogram of the suitable image represents the increment of the pixel value (gray value) from left to right, and the vertical axis represents the pixel value (gray value) from bottom to top.
  • the number of pixels is incremented.
  • the pixel value (gray value) ranges from 0 to 255, that is, from black to white, the higher the peak at a certain point, the pixel value (gray value) is represented. The more pixels there are.
  • the first predetermined number and the second predetermined number should be the number of pixels in the histogram near the right boundary, that is, the number of overexposed pixels, and the first predetermined number may be set to be one third of the total pixels, and the second predetermined number may be It is set to account for a quarter of the total pixels. It should be noted that one-third and one-quarter are only illustrative and are not intended to limit the invention.
  • control method of the third embodiment of the present invention is substantially the same as the control method of the first embodiment. Further, the step of identifying whether there is an overexposed portion in the exposed image includes the following steps:
  • S11 Determine, according to the histogram of the suitable exposed image, whether the overexposed pixel in the exposed image is more than or equal to a first predetermined number, and the pixel value of the overexposed pixel is greater than or equal to a predetermined pixel value, and the predetermined pixel value is a pixel value of the exposed image.
  • the upper limit of the range for example, the predetermined pixel value is 255;
  • control device 11 of the third embodiment of the present invention has substantially the same structure as the control device 11 of the first embodiment, except that the identification module 1111 of the control device 11 of the third embodiment includes a first determination sub-module 11111, and a first The determining sub-module 11112, the second determining sub-module 11113, and the second determining sub-module 11114 are respectively configured to perform steps S11, S12, S13, and S14.
  • the first determining sub-module 11111 is configured to determine, according to the histogram of the suitable exposed image, whether the overexposed pixel in the exposed image is more than or equal to a first predetermined number, and the pixel value of the overexposed pixel is greater than or equal to a predetermined pixel value.
  • the predetermined pixel value is an upper limit of a range of pixel values of the exposed image, for example, a predetermined pixel value is 255.
  • the first determining sub-module 11112 is configured to determine that there is an overexposed portion when the overexposed pixel is more than or equal to the first predetermined number.
  • the second determining sub-module 11113 is configured to determine whether there is an adjacent over-exposed pixel in the exposed image when there is an over-exposed portion, and the number of adjacent over-exposed pixels is greater than or equal to a second predetermined number.
  • the second determining sub-module 11114 is configured to determine that the adjacent over-exposed pixels belong to the over-exposed portion when there is an adjacent over-exposed pixel.
  • the second predetermined number should be smaller than the first predetermined number, because the first predetermined number may include noise, and even the exposed image may include a plurality of adjacent overexposed pixels, for example, there are a plurality of discrete light sources, and the light sources are common Form the overexposed part.
  • the horizontal axis of the histogram of the suitable image represents the increment of the pixel value (gray value) from left to right, and the vertical axis represents the pixel value (gray value) from bottom to top.
  • the number of pixels is incremented.
  • the pixel value (gray value) ranges from 0 to 255, that is, from black to white, the higher the peak at a certain point, the pixel value (gray value) is represented. The more pixels there are.
  • the first predetermined number and the second predetermined number should be the number of pixels in the histogram near the right boundary, that is, the number of overexposed pixels, and the first predetermined number may be set to be one third of the total pixels, and the second predetermined number may be It is set to account for a quarter of the total pixels. It should be noted that one-third and one-quarter are only illustrative and are not intended to limit the invention.
  • an image forming apparatus 10 includes a control device 11 of a third embodiment and a camera 12 electrically connected to the control device 11 of the third embodiment.
  • the imaging device 10 of the present embodiment includes the image processing device 111, the control module 112, and the camera 12 of the third embodiment.
  • the control module 112 is electrically connected to both the camera 12 and the image processing device 111.
  • an electronic device 100 includes the imaging device 10 of the third embodiment.
  • the electronic device 100 may be any one of a mobile phone, a tablet computer, a notebook computer, a smart watch, a smart wristband, a smart helmet, smart glasses, other virtual reality wearable devices, and other augmented reality wearable devices.
  • the imaging device 10 when the number of the imaging devices 10 is one, the imaging device 10 may be a front camera or a rear camera.
  • the two imaging devices 10 may be a front camera and a rear camera, respectively; or both imaging devices 10 are front cameras; or both imaging devices 10 are rear cameras .
  • the imaging device 10 may be a camera disposed at any position, and may be a top camera, a bottom camera, a side wall camera, or the like in addition to the front camera and the rear camera.
  • the image processing method, the image processing device 111, the control method, the control device 11, the imaging device 10, and the electronic device 100 in the third embodiment of the present invention take two images, one suitable exposure image, one underexposed image, and two The image is blurred, and then the brightness of the underexposed image is blurred, and the imitation original overexposed portion is taken out, and the blurred overexposed portion in the blurred exposure image is replaced with the original overexposed portion. Combine a blurred image with a real flare effect, and the spot effect is good.
  • the image processing method of the fourth embodiment of the present invention is substantially the same as the image processing method of the first embodiment. Further, the image processing method of the fourth embodiment further includes the following steps:
  • the image processing method of the fourth embodiment described above can be realized by the image processing apparatus 111 of the fourth embodiment of the present invention.
  • the image processing device 111 of the fourth embodiment of the present invention has substantially the same structure as the image processing device 111 of the first embodiment, except that the image processing device 111 of the fourth embodiment further includes a first output module 1117 and a second output.
  • Module 1118 can be used to perform steps S7 and S8, respectively. That is, the first output module 1117 is configured to output a merged image when there is an overexposed portion.
  • Second output module 1118 Used to output a blurred exposure image when there is no overexposed portion.
  • control method of the fourth embodiment of the present invention is substantially the same as the control method of the first embodiment.
  • the control method of the fourth embodiment further includes the following steps:
  • control device 11 of the fourth embodiment of the present invention has substantially the same structure as the control device 11 of the first embodiment, except that the control device 11 of the fourth embodiment further includes a first output module 1117 and a second output module 1118. It can be used to perform steps S7 and S8, respectively. That is, the first output module 1117 is configured to output a merged image when there is an overexposed portion. The second output module 1118 is configured to output a blurred exposure image when there is no overexposed portion.
  • an image forming apparatus 10 includes a control device 11 of a fourth embodiment and a camera 12 electrically connected to the control device 11 of the fourth embodiment.
  • the imaging device 10 of the present embodiment includes the image processing device 111, the control module 112, and the camera 12 of the fourth embodiment.
  • the control module 112 is electrically connected to both the camera 12 and the image processing device 111.
  • an electronic device 100 includes the imaging device 10 of the fourth embodiment.
  • the electronic device 100 may be any one of a mobile phone, a tablet computer, a notebook computer, a smart watch, a smart wristband, a smart helmet, smart glasses, other virtual reality wearable devices, and other augmented reality wearable devices.
  • the imaging device 10 when the number of the imaging devices 10 is one, the imaging device 10 may be a front camera or a rear camera.
  • the two imaging devices 10 may be a front camera and a rear camera, respectively; or both imaging devices 10 are front cameras; or both imaging devices 10 are rear cameras .
  • the imaging device 10 may be a camera disposed at any position, and may be a top camera, a bottom camera, a side wall camera, or the like in addition to the front camera and the rear camera.
  • the image processing method, the image processing device 111, the control method, the control device 11, the imaging device 10, and the electronic device 100 in the fourth embodiment of the present invention capture two images, one suitable exposure image, one underexposed image, and two The image is blurred, and then the brightness of the underexposed image is blurred, and the imitation original overexposed portion is taken out, and the blurred overexposed portion in the blurred exposure image is replaced with the original overexposed portion. Combine a blurred image with a real flare effect, and the spot effect is good.
  • steps S7 and S8 can also be applied to the image processing method of the second embodiment and the control method of the second embodiment.
  • the first output module 1117 and the second output module 1118 can also be applied to the second embodiment.
  • Image processing device, control device of the second embodiment, and imaging device of the second embodiment In the electronic device of the second embodiment.
  • Steps S7 and S8 can also be applied to the image processing method of the third embodiment and the control method of the third embodiment.
  • the first output module 1117 and the second output module 1118 can also be applied to the image processing of the third embodiment.
  • step S6 may include the following steps:
  • control camera is sequentially exposed with the first exposure amount and the second exposure amount to obtain an appropriately exposed image and an underexposed image.
  • the control module 112 in the control device 11 of the first to fourth embodiments includes a first exposure determining unit 1121, a second exposure determining unit 1122, and a first control unit 1123, which can be used to respectively Steps S61, S62, and S63 are performed. That is, the first exposure determining unit 1121 is configured to determine the first exposure amount according to the light environment. The second exposure determining unit 1122 is configured to determine the second exposure amount according to the overexposed portion. The first control unit 1123 is configured to control the camera to sequentially expose the first exposure amount and the second exposure amount to obtain an appropriately exposed image and an underexposed image.
  • the imaging device 10 of the first to fourth embodiments and the control module 112 in the electronic device 100 may also include a first exposure determining unit 1121, a second exposure determining unit 1122, and a first control unit 1123, the specific structure and The function is the same as before and will not be expanded in detail here.
  • step S6 may further comprise the following steps:
  • S63 Control the first camera and the second camera to respectively expose the first exposure amount and the second exposure amount to obtain an appropriately exposed image and an underexposed image.
  • the control module 112 in the control device 11 of the first to fourth embodiments includes a first exposure determining unit 1121, a second exposure determining unit 1122, and a second control unit 1123, which can be used to respectively Steps S61, S62, and S63 are performed. That is, the first exposure determining unit 1121 is configured to determine the first exposure amount according to the light environment. The second exposure determining unit 1122 is configured to determine the second exposure amount according to the overexposed portion. The second control unit 1123 is configured to control the first camera and the second camera to respectively expose the first exposure amount and the second exposure amount. To the appropriate exposure image and underexposure image.
  • the imaging device 10 of the first to fourth embodiments and the control module 112 in the electronic device 100 may also include a first exposure determining unit 1121, a second exposure determining unit 1122, and a second control unit 1123, the specific structure and The function is the same as above, and will not be expanded in detail here.
  • Certain embodiments of the present invention also provide an electronic device including a housing, a processor, a memory, a circuit board, and a power supply circuit.
  • the circuit board is disposed inside a space enclosed by the casing, and the processor and the memory are disposed on the circuit board.
  • the power circuit for supplying power to respective circuits or devices of the electronic device; the memory for storing executable program code; the processor running by reading executable program code stored in the memory
  • the program corresponding to the executable program code is used to execute the image processing method according to any of the above embodiments or to execute the control method described in any of the above embodiments.
  • the electronic device may be any one of a mobile phone, a tablet computer, a notebook computer, a smart watch, a smart bracelet, a smart helmet, and smart glasses.
  • the embodiment of the present invention further provides a computer readable storage medium having instructions stored therein, when the processor of the electronic device executes the instruction, the electronic device executes the image processing method according to any one of the above embodiments Or the control method described in any of the above embodiments is performed.
  • a "computer-readable medium” can be any device that can contain, store, communicate, propagate, or transport the program for use in an instruction execution system, apparatus, or device, or in conjunction with the instruction execution system, apparatus, or device.
  • computer readable media include the following: electrical connections (electronic devices) having one or more wires, portable computer disk cartridges (magnetic devices), random access memory (RAM), Read only memory (ROM), erasable editable read only memory (EPROM or flash memory), fiber optic devices, and portable compact disk read only memory (CDROM).
  • the computer readable medium may even be a paper or other suitable medium on which the program can be printed, as it may be optically scanned, for example by paper or other medium, followed by editing, interpretation or, if appropriate, other suitable The method is processed to obtain the program electronically and then stored in computer memory.
  • portions of the invention may be implemented in hardware, software, firmware or a combination thereof.
  • multiple steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system.
  • a suitable instruction execution system For example, if implemented in hardware, as in another embodiment, it can be implemented by any one or combination of the following techniques well known in the art: having logic gates for implementing logic functions on data signals. Discrete logic circuits, application specific integrated circuits with suitable combinational logic gates, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.
  • each functional unit in each embodiment of the present invention may be integrated into one processing module, or each unit may exist physically separately, or two or more units may be integrated into one module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules.
  • the integrated modules, if implemented in the form of software functional modules and sold or used as stand-alone products, may also be stored in a computer readable storage medium.
  • the above mentioned storage medium may be a read only memory, a magnetic disk or an optical disk or the like.

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Abstract

L'invention concerne un procédé de traitement d'image, comportant les étapes consistant à: reconnaître si une image correctement exposée présente ou non une partie surexposée (S1); rendre floue l'image correctement exposée pour obtenir une image correctement exposée floue (S2); lorsque l'image correctement exposée présente une partie surexposée, rendre floue une image sous-exposée pour obtenir une image sous-exposée floue (S3); augmenter la luminosité d'une partie de matière floue pour obtenir une partie surexposée imitée à l'origine (S4); et remplacer la partie surexposée floue dans l'image correctement exposée floue par la partie surexposée imitée à l'origine pour obtenir une image combinée (S5). L'invention concerne en outre un dispositif de traitement d'image (111), un procédé de commande, un dispositif (11) de commande, un dispositif (10) d'imagerie et un dispositif électronique (100).
PCT/CN2016/111147 2016-12-20 2016-12-20 Procédé et dispositif de traitement d'image, procédé et dispositif de commande, et dispositif d'imagerie et dispositif électronique WO2018112763A1 (fr)

Priority Applications (10)

Application Number Priority Date Filing Date Title
PCT/CN2016/111147 WO2018112763A1 (fr) 2016-12-20 2016-12-20 Procédé et dispositif de traitement d'image, procédé et dispositif de commande, et dispositif d'imagerie et dispositif électronique
TW106139390A TWI626620B (zh) 2016-12-20 2017-11-14 圖像處理方法與裝置、電子裝置及計算機可讀儲存介質
US15/814,791 US10692199B2 (en) 2016-12-20 2017-11-16 Image processing method and device, and non-transitory computer-readable storage medium
KR1020197018549A KR102171625B1 (ko) 2016-12-20 2017-12-19 이미지 프로세싱 방법 및 디바이스, 및 비-일시적 컴퓨터-판독가능 저장 매체(image processing method and device, and non-transitory computer-readable storage medium)
EP17208506.0A EP3340608B1 (fr) 2016-12-20 2017-12-19 Procédé et dispositif de traitement d'image et support d'informations lisible par ordinateur non transitoire
PCT/CN2017/117289 WO2018113685A1 (fr) 2016-12-20 2017-12-19 Procédé et dispositif de traitement d'images, et support de stockage transitoire lisible par ordinateur
ES17208506T ES2761593T3 (es) 2016-12-20 2017-12-19 Procedimiento de procesamiento de imágenes y dispositivo, y medio de almacenamiento legible por ordenador no transitorio
JP2019533587A JP6803473B2 (ja) 2016-12-20 2017-12-19 画像処理方法および装置、ならびに非一時的コンピュータ可読記憶媒体
AU2017379019A AU2017379019B2 (en) 2016-12-20 2017-12-19 Image processing method and device, and non-transitory computer-readable storage medium
ZA2019/04191A ZA201904191B (en) 2016-12-20 2019-06-26 Image processing method and device, and non-transitory computer-readable storage medium

Applications Claiming Priority (1)

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PCT/CN2016/111147 WO2018112763A1 (fr) 2016-12-20 2016-12-20 Procédé et dispositif de traitement d'image, procédé et dispositif de commande, et dispositif d'imagerie et dispositif électronique

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