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Browse by Category: Main > Optical & Optics
Class Information
Number: 382/169
Name: Image analysis > Histogram processing > With a gray-level transformation (e.g., uniform density transformation)
Description: Subject matter wherein the histogram is manipulated to achieve gray level transformations including histogram equalization, histogram normalization, contrast enhancement, and tone scale transformations.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8712151 Method and structure for image local contrast enhancement Apr. 29, 2014
8692872 3D glasses, method for driving 3D glasses, and system for providing 3D image Apr. 8, 2014
8644607 Method and apparatus for image processing Feb. 4, 2014
8639037 High-performance closed-form single-scan calculation of oblong-shape rotation angles from image data of arbitrary size and location using running sums Jan. 28, 2014
8634643 Image adjustment method Jan. 21, 2014
8625894 Image display device capable of supporting brightness enhancement and power control and method thereof Jan. 7, 2014
8620037 Human image retrieval system Dec. 31, 2013
8605031 Driving apparatus of backlight module and driving method thereof Dec. 10, 2013
8606009 High dynamic range image generation and rendering Dec. 10, 2013
8605957 Face clustering device, face clustering method, and program Dec. 10, 2013
8594437 Similar picture search apparatus Nov. 26, 2013
8594445 Fast bilateral filtering using rectangular regions Nov. 26, 2013
8570394 Systems, methods, and mediums for adjusting an exposure of an image using a histogram Oct. 29, 2013
8571315 Information processing apparatus, information processing method, and program Oct. 29, 2013
8559750 Method of performing adaptive contrast enhancement using hyperbolic tangent curve and image histogram Oct. 15, 2013
8553134 Imager processing a captured image Oct. 8, 2013
8553154 Method and/or apparatus for implementing a color management module Oct. 8, 2013
8552946 Display device, display driver and image display method Oct. 8, 2013
8547450 Methods and systems for automatic white balance Oct. 1, 2013
8547612 Image processing apparatus, image forming apparatus, and image processing method that read color image data from a document Oct. 1, 2013
8515170 Image correction apparatus and correction parameter creation apparatus Aug. 20, 2013
8514166 LCD backlight dimming, LCD/image signal compensation and method of controlling an LCD display Aug. 20, 2013
8508556 Image display method Aug. 13, 2013
8509542 High-performance closed-form single-scan calculation of oblong-shape rotation angles from binary images of arbitrary size and location using running sums Aug. 13, 2013
8503036 System and method of improving image quality in digital image scanning and printing by reducing noise in output image data Aug. 6, 2013
8498476 High dynamic range texture compression Jul. 30, 2013
8487929 Resolution enhancement of video stream based on spatial and temporal correlation Jul. 16, 2013
8488188 Printer gradation correction method and color patch image Jul. 16, 2013
8488221 Printing device for printing images with ink and printing method for the same Jul. 16, 2013
8478041 Method for analyzing and/or testing at least one user interface, data processing device and computer program product Jul. 2, 2013
8472713 Image processor, image processing method, and computer-readable medium Jun. 25, 2013
8472714 Identification apparatus and method for identifying properties of an object detected by a video surveillance camera Jun. 25, 2013
8467605 Color invariant image representation method and apparatus Jun. 18, 2013
8457399 Histogram-modeling based algorithm for contrast enhancement Jun. 4, 2013
8451497 Image processing device and method therefor for automatically determining reading mode based on image data read by image reader May. 28, 2013
8452094 Real-time image generator May. 28, 2013
8447114 Method and apparatus for calculating pixel features of image data May. 21, 2013
8441468 Image display apparatus May. 14, 2013
8428334 Inspection System Apr. 23, 2013
8422081 Image forming apparatus and image forming method capable of revising gray image Apr. 16, 2013
8417032 Adjustment of image luminance values using combined histogram Apr. 9, 2013
8417053 Cleaning method for foggy images Apr. 9, 2013
8411327 Data processing device, image forming device, system, and a computer-readable recording medium for determining whether or not image is properly formed on recording medium Apr. 2, 2013
8411994 Apparatus and method for image processing and computer-readable storage medium Apr. 2, 2013
8400462 Code processing in electronic terminal Mar. 19, 2013
8401300 Targeted image transformation of skin attribute Mar. 19, 2013
8390638 Image compensation methods, systems, and apparatuses for organic light emitting diode display panel Mar. 5, 2013
8374393 Foreground object tracking Feb. 12, 2013
8369645 Image correction circuit, image correction method and image display Feb. 5, 2013
8369646 Image correction circuit, image correction method and image display Feb. 5, 2013

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