-
公开(公告)号：US12125183B2
公开(公告)日：2024-10-22
申请号：US17511718
申请日：2021-10-27
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Johannes Yzebrand Tichelaar
CPC classification number: G06T5/92 , G06T7/90 , G06T9/00 , H04N9/643 , H04N9/68 , H04N9/77 , H04N23/88 , G06T2207/10016 , G06T2207/10024 , G06T2207/20092
Abstract: To allow a better determination of an image of a different luminance dynamic range (in particular as characterised by a different maximum luminance a.k.a. peak brightness) than an input image, the present application teaches several variants of a luminance processor (501) arranged to calculate an output luminance of a pixel of an output image (Im_LDR; Im3000nit) having a second luminance dynamic range characterized by a second peak brightness (PB_LDR; PB_MDR) from an input luminance of a spatially collocated pixel of an input image (MAST_HDR) having a first luminance dynamic range characterized by a first peak brightness (PB_HDR), characterized in that the luminance processor comprises:
a gain calculation unit (514) arranged to calculate a multiplication factor (gL) being a function of the input luminance and a luminance mapping function (FLM);
a maximum calculation unit (601) arranged to calculate a strength value (V) which is the maximal one of the three red, green and blue color components of the color of the pixel of the input image, wherein those components are either linear red, green and blue color components or a power of those linear red, green and blue color components;
an overflow calculator (602) arranged to calculate an overflow measure (T) indicating how close to the upper gamut boundary the output luminance is;
a gain factor modification unit (603) arranged to determine an alternative gain factor (F1(gL)) in case the overflow measure is larger than a threshold (G), and arranged to keep the original gain factor otherwise, and arranged to output one of those as a final gain factor (gF); and
a multiplier (530) to multiply the input color (R′G′B′_nrm) by the final gain factor (gF) to obtain an output color (R′G′B′_HDR) having the output luminance.-
公开(公告)号：US11983846B2
公开(公告)日：2024-05-14
申请号：US17316567
申请日：2021-05-10
Applicant: QUALCOMM Incorporated
Inventor： Shusil Dangi , Hau Hwang , Venkata Ravi Kiran Dayana
CPC classification number: G06T5/00 , G06N3/045 , G06N3/084 , G06T5/70 , G06T5/73 , H04N9/643 , H04N9/646 , H04N9/68 , H04N25/60 , G06T2207/10024 , G06T2207/20081 , G06T2207/20084 , G06T2207/20182
Abstract: An imaging system can obtain image data, for instance from an image sensor. The imaging system can supply the image data as input data to a machine learning system, which can generate one or more maps based on the image data. Each map can identify strengths at which a certain image processing function is to be applied to each pixel of the image data. Different maps can be generated for different image processing functions, such as noise reduction, sharpening, or color saturation. The imaging system can generate a modified image based on the image data and the one or more maps, for instance by applying each of one or more image processing functions in accordance with each of the one or more maps. The imaging system can supply the image data and the one or more maps to a second machine learning system to generate the modified image.
-
公开(公告)号：US11889202B2
公开(公告)日：2024-01-30
申请号：US17318842
申请日：2021-05-12
Applicant: CANON KABUSHIKI KAISHA
Inventor： Ryoji Arakawa
Abstract: An image processing apparatus includes a detection unit configured to detect a specific area from a captured image, and a determination unit configured to determine, based on the detected specific area, a light source color including a characteristic color by using a learning unit trained in advance by machine learning.
-
4.发明公开公开(公告)号：US20230412784A1
公开(公告)日：2023-12-21
申请号：US18209915
申请日：2023-06-14
Applicant: Black Sesame Technologies Co., Ltd.
Inventor： Yuanyuan Nan
CPC classification number: H04N9/643 , G06T7/90 , G06T2207/30201 , G06T2207/10024 , G06T2207/20076
Abstract: A method and an apparatus for adjusting skin colors of a portrait, an electronic device and a storage medium are provided. The method includes: acquiring an initial portrait image to be adjusted; determining multiple skin color category probabilities that the initial portrait image respectively belongs to multiple predetermined skin color categories; calculating a mapped pixel value of each pixel in the initial portrait image according to the multiple skin color category probabilities and multiple skin color mapping tables respectively corresponding to the multiple skin color categories; and determining a skin color beautified image based on the mapped pixel value of each pixel. With the method, the skin color adjustment can be flexibly and accurately adapted to various skin color conditions.
-
公开(公告)号：US11842461B2
公开(公告)日：2023-12-12
申请号：US17470069
申请日：2021-09-09
Applicant: FUJIFILM Corporation
Inventor： Rina Fujino , Toshiaki Nagai , Tsuneo Sato
Abstract: An image processing device includes an image acquisition unit that acquires a captured image to be processed from a storage unit in which a captured image having first date/time information indicating a time of imaging is stored, a date/time information acquisition unit that acquires the first date/time information and acquires second date/time information indicating a date/time when the captured image to be processed is acquired, an elapsed date/time calculation unit that calculates an elapsed date/time from the time of imaging by making a comparison between the first date/time information and the second date/time information, and an image processing unit that selects image processing based on a length of the elapsed date/time from among a plurality of kinds of image processing that change according to the length of the elapsed date/time and performs the selected image processing on the captured image to be processed.
-
Patent Agency Ranking
公开(公告)号：US11800075B2
公开(公告)日：2023-10-24
申请号：US17193751
申请日：2021-03-05
Applicant: REALTEK SEMICONDUCTOR CORP.
Inventor： Feng-Shih Su
CPC classification number: H04N9/642 , G09G5/005 , G09G5/006 , G09G5/02 , G09G5/04 , H04N1/648 , H04N9/643
Abstract: An asymmetric image transmission method and an electronic device thereof are provided. The asymmetric image transmission method is applicable to transmission of an image signal from a transmitter to a receiver and includes: modifying, by the transmitter, a first image pixel length in the image signal that conforms to a four-byte mode to a second image pixel length of a three-byte mode; transmitting a plurality of image pixels of the second image pixel length in the three-byte mode respectively through three transmission lanes of a transmission interface; and modifying, by the receiver, the second image pixel length of the image pixels to the first image pixel length of the four-byte mode to obtain the image signal.
-
7.发明授权公开(公告)号：US11736670B2
公开(公告)日：2023-08-22
申请号：US17902136
申请日：2022-09-02
Applicant: WARNER BROS. ENTERTAINMENT INC.
Inventor： Michael Zink , Michael Smith
IPC: H04N9/64 , H04N9/73 , H04N9/67 , H04N19/186
CPC classification number: H04N9/643 , H04N9/67 , H04N9/73 , H04N19/186
Abstract: A system is provided for generating video content with hue-preservation in virtual production. The system comprises a memory for storing instructions and a processor configured to execute the instructions. Based on the executed instructions, the processor is further configured to control a saturation of scene linear data based on mapping of a first color gamut corresponding to a first encoding format of raw data to a second color gamut corresponding to a defined color space. The processor is further configured to determine a standard dynamic range (SDR) video content in the defined color space based on the scene linear data. Based on a scaling factor that is applied to three primary color values that describe the first color gamut, hue of the SDR video content is preserved.
-
公开(公告)号：US11665327B2
公开(公告)日：2023-05-30
申请号：US17773246
申请日：2019-11-01
Applicant: LG ELECTRONICS INC.
Inventor： Vidya Bhagwath , Rajasekhar Gurram , Sachidanand Desai , Jaejun Lee
Abstract: The present disclosure relates to an image processing apparatus. The image processing apparatus according to an embodiment of the present disclosure includes a display having a plurality of pixels, and a controller, wherein the controller: calculates an average luminance value of a first frame of an image based on RGB data corresponding to the image; sets a criterion for determining an output level of the plurality of pixels according to the average luminance value of the first frame; controls the display to output a first frame group, including the first frame, according to the set criterion; calculates an average luminance value of a second frame of the image according to a predetermined cycle; resets a criterion for determining the output level of the plurality of pixels according to the average luminance value of the second frame; and controls the display to output a second frame group, including the second frame, according to the reset criterion. Accordingly, by dynamically changing the criteria for determining the output level of the plurality of pixels included in the display based on the luminance value of each frame of the image, the image may be displayed more clearly. Various other embodiments are possible.
-
公开(公告)号：US20190251929A1
公开(公告)日：2019-08-15
申请号：US16342422
申请日：2016-10-20
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Humberto M. Fossati , Greg Staten , John W. Frederick , Syed S. Azam
CPC classification number: G09G5/02 , G01J3/463 , G09G3/00 , G09G3/2003 , G09G2320/0242 , G09G2320/0666 , G09G2320/0693 , H04N9/643
Abstract: Displays having calibrators are disclosed. An example display includes a sensor to measure a plurality of readings for color settings of a color pattern presented by the display. A processor is to calculate average values corresponding to respective ones of the plurality of readings for the color settings. A calibration manager is to generate calibrated measurement values based on the average values. The calibrated measurement values to enable determination of color space information for the display.
-
公开(公告)号：US09936172B2
公开(公告)日：2018-04-03
申请号：US14430638
申请日：2013-10-24
Applicant: SONY CORPORATION
Inventor： Toshinobu Sugiyama
CPC classification number: H04N9/045 , H04N5/347 , H04N5/372 , H04N5/374 , H04N9/077 , H04N9/643 , H04N9/735 , H04N9/77
Abstract: The present disclosure relates to a signal processing device, a signal processing method, and a signal processing program which can more accurately perform color reproduction to an image captured by using visible light and infrared light.A plurality of pixel signals, output by a color-difference sequential system from an image sensor on which light having passed through a color filter array including a plurality of complementary color filters is incident, are acquired. With respect to the plurality of pixel signals, a parameter to eliminate a term corresponding to a predetermined infrared wavelength in an equation to calculate a color-difference signal from the plurality of pixel signals, is set using the plurality of pixel signals. Thereafter, a luminance signal obtained by performing an addition process of the plurality of pixel signals and a color-difference signal obtained by performing a subtraction process between the plurality of pixel signals are calculated using the parameter.
-
-
-
-
-
-
-
-
-
Search Results
813
records
(took 0.022 seconds)
