Abstract: A method for storing video data includes, when receiving the I-frame data to be stored, detecting whether the written data exists in the video cache space; when detecting that the written data exists in the video cache space, reading a target writing position of the I-frame data to be stored and determining whether the target writing position is located within a position range corresponding to the written data in the first cache space; when determining the target writing position is located within the position range, writing, based on the target writing position, the I-frame data to be stored to the first cache space for caching and detecting whether the first cache space is full; and when detecting that the first cache space is full, writing all the video data in the video cache space to a memory space of the terminal device for storage and emptying the video cache space.

Abstract: Provided are a color adjustment method, a color adjustment device, an electronic device, and a computer-readable storage medium. The method includes: determining an adjustment area corresponding to an edge pixel, where the adjustment area includes multiple pixels; acquiring color information of the edge pixel and color information of each similar pixel in the adjustment area, where a pixel type of the similar pixel is consistent with a pixel type of the edge pixel; and adjusting a parameter value of the edge pixel according to the color information of the each similar pixel, the color information of the edge pixel, and a brightness parameter of the edge pixel.

Abstract: Provided are a camera, a method, apparatus and device for switching between a day mode and a night mode, and a medium. The method includes steps described below. In response to a current camera mode being the night mode, a color temperature value of a current imaging picture is determined. Visible light illuminance of the current imaging picture is determined by utilizing the color temperature value and an infrared light contribution ratio of picture brightness obtained based on white balance statistical information of the current imaging picture and used as first visible light illuminance. It is determined whether to switch from the current night mode to the day mode by utilizing a magnitude relationship between the first visible light illuminance and a first preset illuminance threshold.

Abstract: A code rate control method and apparatus, an image acquisition device, and a readable storage medium are provided. The method includes: acquiring the gain and exposure time of an image to be encoded from an image processing module of an image acquisition device; obtaining corresponding reference distortion degree according to the gain and exposure time of said image; calculating the difference between the distortion degree in a characteristic region of said image and the reference distortion degree; calculating a distortion tolerance degree of macro blocks constituting said image according to the difference between the distortion degree in the characteristic region of said image and the reference distortion degree; performing macro block predictions on the respective macro blocks in said image, to obtain an optimum macro block prediction mode; and encoding said image, which corresponds to the optimum macro block prediction mode.

Abstract: Provided are a video encoding method and apparatus, an electronic device, and a computer-readable storage medium. The method includes: acquiring status information of each macroblock in an image to be encoded; dividing the image to be encoded into a plurality of status regions according to the status information of each macroblock; determining a quantizer parameter adjustment value of each of the plurality of status regions in the image to be encoded according to a preset quantizer parameter value table; acquiring a quantizer parameter encoding value of each macroblock in a reference frame image of the image to be encoded; determining a quantizer parameter encoding value of each macroblock in the image to be encoded; and compressing and encoding the image to be encoded.

Abstract: Provided are a device cross-region access method and apparatus, an electronic device, and a storage medium. The method includes: receiving a cross-region access request from a target device and determining IP address information in the cross-region access request; determining information of a cross-region proxy server matching the target device according to the IP address information, where the cross-region proxy server is preset in a proxy region different from a target region where the target server is located, and the cross-region proxy server and the target server are in a distributed deployment; and transmitting the information of the cross-region proxy server to the target device to enable the target device to establish a connection to the cross-region proxy server.

Abstract: Disclosed are a method and apparatus for automatically detecting and suppressing fringes, an electronic device, and a computer-readable storage medium. The method includes the following steps: an image shot by a camera is acquired, and a fringe of the image is recognized; at least one fringe action parameter is acquired among shooting parameters of the camera based on a recognition result obtained by recognizing the fringe of the image; and a parameter adjustment is performed on the acquired fringe action parameter by adopting a parameter adjustment strategy matched with the acquired fringe action parameter, to perform fringe suppression on the image shot by the camera.

Abstract: Provided are a dual-spectrum image automatic exposure method and apparatus, and a dual-spectrum image camera. This method includes acquiring an original image collected by the image sensor; performing logical light splitting processing on the original image to obtain an infrared image and a visible light image; determining whether to use infrared cutoff filter; if it is determined to use the infrared cutoff filter, performing exposure processing on the visible light image by using a single-spectrum exposure algorithm to obtain a visible light image that conforms to a target exposure effect; and if it is determined not to use the infrared cutoff filter, performing the exposure processing on the infrared image and the visible light image by using a dual-spectrum exposure algorithm to obtain a visible light image that conforms to a first exposure effect and an infrared image that conforms to a second exposure effect.

Abstract: Provided are a graphic drawing method applied to a terminal device. The terminal device includes a canvas deployed on an upper layer of a video stream display window and structured feature data of at least one basic graphic matching the canvas. The method includes: monitoring in real time a target graphic drawing event that is performed by a paintbrush based on a selected basic graphic; upon monitoring the target graphic drawing event, acquiring, for each time point in which each frame of image in a video stream is displayed, a drawing coordinate of the paintbrush at each time point; and rendering and drawing on the canvas a target graphic corresponding to an image displayed at each time point according to structured feature data of the selected basic graphic and the drawing coordinate. Further provided are a graphic drawing apparatus, a device, and a storage medium.

Abstract: Provided are a face feature point detection method, applied to an image processing device, where the image processing device stores a feature area detection model and a feature point detection model. The method includes: preprocessing a face image to be detected to obtain a preprocessed target face image; performing feature point extraction on the target face image according to the feature area detection model and the feature point detection model to obtain a target feature point coordinate located within a face feature area in the target face image; and performing coordinate transformation on the target feature point coordinate to obtain a face feature point coordinate corresponding to the face image to be detected. Further provided are a face feature point detection device, an equipment and a storage medium.

Abstract: Provided are a white balance abnormality determination method and apparatus, a storage medium, and an electronic device. The method includes: acquiring at least one target block in a first channel image, and acquiring at least one reference block in a second channel image for each target block, where the first channel image is adjacent to the second channel image; determining a color feature representative value of each target block and a color feature representative value of each reference block associated with a position of a respective target block; determining, a color feature difference value between the first channel image and the second channel image; determining whether a white balance abnormality image exists in the first channel image and the second channel image; and in a case where a white balance abnormality image exists in the first channel image and the second channel image, adjusting the white balance abnormality image.

Abstract: Disclosed are an image data reading method and apparatus, an electronic device, and a readable storage medium, relating to the technical field of LED image display. The image data reading method includes: storing image data in each row of image blocks into a number of v storage blocks, where each of the v storage blocks stores a number of h rows, each row of data including image data stored at a same position of each group in a same row of every image block; and sequentially outputting from each of the v storage blocks by: sequentially reading each row of the image data in a vertical order, and simultaneously outputting the image data stored at the same position.

Abstract: Provided are a dual-spectrum camera system based on a single sensor and an image processing method. The camera system includes a lens, an image sensor, and a logical light separation module and an image fusion module that are sequentially connected to the image sensor. The image sensor includes red-green-blue (RGB) photosensitive cells and infrared radiation (IR) photosensitive cells. An infrared cut-off filter layer is arranged on a light incoming path of the RGB photosensitive cells. The image sensor receives incident light entering through the lens to generate an original image and sends the original image to the logical light separation module. The logical light separation module converts and separates the original image into a visible light image and an infrared image, and sends the visible light image and the infrared image to the image fusion module to generate a fused image.

Abstract: Provided are a facial recognition method, an electronic device, a computer-readable storage medium, and a facial recognition system. The facial recognition method includes: obtaining a first required comparison value and a second required comparison value based on a facial feature; if the first required comparison value is less than a preset comparison threshold and the second required comparison value is also less than the preset comparison threshold, re-extracting a facial feature, and matching the re-extracted facial feature against a plurality of original images separately to obtain a third required comparison value; and if the third required comparison value is greater than or equal to the preset comparison threshold, determining that the recognition is successful.

Abstract: Provided are a dual-spectrum image automatic exposure method and apparatus, and a dual-spectrum image camera. This method includes acquiring an original image collected by the image sensor; performing logical light splitting processing on the original image to obtain an infrared image and a visible light image; determining whether to use infrared cutoff filter; if it is determined to use the infrared cutoff filter, performing exposure processing on the visible light image by using a single-spectrum exposure algorithm to obtain a visible light image that conforms to a target exposure effect; and if it is determined not to use the infrared cutoff filter, performing the exposure processing on the infrared image and the visible light image by using a dual-spectrum exposure algorithm to obtain a visible light image that conforms to a first exposure effect and an infrared image that conforms to a second exposure effect.

Abstract: Provided are a face feature point detection method, applied to an image processing device, where the image processing device stores a feature area detection model and a feature point detection model. The method includes: preprocessing a face image to be detected to obtain a preprocessed target face image; performing feature point extraction on the target face image according to the feature area detection model and the feature point detection model to obtain a target feature point coordinate located within a face feature area in the target face image; and performing coordinate transformation on the target feature point coordinate to obtain a face feature point coordinate corresponding to the face image to be detected. Further provided are a face feature point detection device, an equipment and a storage medium.

Abstract: Provided are an image processing method and apparatus, an electronic device, and a readable storage medium. Based on the edge detection result of pixels, the IR component image and the RGB component image are sequentially restored and obtained; when the color component is restored, the G component with higher resolution and more complete information is first restored, and then the R and B components are restored so that the restored color image has higher accuracy and image definition.

Abstract: Provided are a graphic drawing method applied to a terminal device. The terminal device includes a canvas deployed on an upper layer of a video stream display window and structured feature data of at least one basic graphic matching the canvas. The method includes: monitoring in real time a target graphic drawing event that is performed by a paintbrush based on a selected basic graphic; upon monitoring the target graphic drawing event, acquiring, for each time point in which each frame of image in a video stream is displayed, a drawing coordinate of the paintbrush at each time point; and rendering and drawing on the canvas a target graphic corresponding to an image displayed at each time point according to structured feature data of the selected basic graphic and the drawing coordinate. Further provided are a graphic drawing apparatus, a device, and a storage medium.

Abstract: The present application discloses a video scrambling method and device with adaptive mode selection, a network camera and a readable storage medium, which are used for scrambling a video code stream. The video scrambling method with adaptive mode selection comprises: firstly acquiring a video code stream and determining the frame type of a current frame; and then scrambling, according to the frame type of the current frame, the data subjected to entropy decoding by using a scrambling method corresponding to the frame type. The video scrambling device with adaptive mode selection in the present application comprises a determination module and a scrambling module. According to the method and device of the present application, I-frames and P-frames are respectively scrambled, without changing the original coding standard format, effectively scrambling the video contents, and improving the security of video content information.

Abstract: A method and a device of a auto-focusing are provided. The method includes: for each of a set comprising N frequency bands of an image, acquiring a FV corresponding to each of focal points during a focusing process; acquiring an interested focal point which corresponds to a maximum FV for the lowest frequency band in the set; if the FV corresponding to the interested focal point for each other frequency band in the set is the maximum FV, determining that the interested focal point is an in-focus point, if the FV corresponding to the interested focal point for any other frequency band is not the maximum FV deleting at least one frequency band for which the FV corresponding to the interested focal point reaches maximum from the set, acquiring a new interested focal point based on the new set, and repeating the above determinations based on the new interested focal point.