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8165419 |
Histogram stretching apparatus and histogram stretching method for enhancing contrast of image
A histogram stretching apparatus and a histogram stretching method are disclosed to enhance image contrast by stretching a histogram of an input image within a range of a preset maximum expansion...
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8144078 |
Enhanced brightness, color and contrast control for cathode ray tube monitor
A method and apparatus for controlling brightness, color and contrast in CRT monitors used in information handling systems. In accordance with the present invention, a viewing area on a CRT monitor...
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8139059 |
Object illumination in a virtual environment
Methods and systems for displaying an image as a virtual representation of an object based upon detected external light are described. An illustrative computer-implemented method includes steps of...
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8139856 |
Image processing apparatus, imaging apparatus, and computer readable medium irregularizing pixel signals continuous in level near a saturation level
An image processing apparatus, a computer readable medium and the like in which a dither effect in a neighborhood of a highlight area can be obtained easily and certainly. For this purpose, an...
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8098953 |
Image processing apparatus and image processing method for adaptively processing an image using an enhanced image and edge data
An image processing apparatus for automatically improving the contrast of an input image that is obtained from a digital camera or the like, and obtaining a sharper and clearing image. A contrast...
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7881555 |
Methods and systems for reducing bright burn in images
A system and method to reduce bright burn in images, such as x-ray images. The reduction of bright burn may be accomplished by processing a received raw image to obtain a grey-value histogram. The...
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RE41631 |
Multi-stage function mapping for a range of input values
Gamma correction or other power Power functions and other self-similar functions are generated for correcting the light intensity for digital pixels implemented in hardware. Two levels of mapping...
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7773826 |
Image processing apparatus and image processing method
An image processing apparatus for automatically improving the contrast of an input image that is obtained from a digital camera or the like, and obtaining a sharper and clearing image. A contrast...
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7683912 |
Image display apparatus, image display method and computer-readable recording medium storing image display program
An image display apparatus in which image signals of a plurality of primary colors are transformed by an image processing section into color space that includes lightness and chromaticity. When the...
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7653518 |
System and method for generating matched contour profiles
A method for generating matched contour profiles includes the steps of trimming or extending an input wire to create a modified input wire and slicing a solid part in the plane of the modified...
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7596280 |
Video acquisition with integrated GPU processing
Systems and techniques for processing sequences of video images involve receiving, on a computer, data corresponding to a sequence of video images detected by an image sensor. The received data is...
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7570808 |
Better picture for inexpensive cameras
A method for enhancing an image includes applying an auto-level transformation to an original image to form a first image, applying an auto-contrast transformation to the original image to form a...
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7474307 |
Clinician review of an orthodontic treatment plan and appliance
A computer is used to create a plan for repositioning an orthodontic patient's teeth. The computer receives an initial digital data set representing the patient's teeth at their initial positions...
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7421375 |
Organic electroluminescent device and driving method thereof
The present invention relates to an organic electroluminescent device and a driving method thereof. The organic electroluminescent device according to the present invention comprises a plurality of...
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7386186 |
Apparatus and method for processing images
A method and apparatus for processing an image. Specifically, one exemplary embodiment of the method comprises inputting an image into a pixel array producing pixel output signals, executing an...
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7386185 |
Image processing device and image processing method
An image processing apparatus for automatically improving the contrast of an input image that is obtained from a digital camera or the like, and obtaining a sharper and clearing image. A contrast...
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7345690 |
Display system for adjusting video parameters for user-selected area
A display system for adjusting video parameters of a user-selected area is disclosed. The display system includes a level detector detecting a line pattern included in one of a plurality of image...
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7336277 |
Per-pixel output luminosity compensation
Per-pixel luminosity adjustment uses a luminosity mask applied as a texture. In one embodiment, a luminosity texture is defined. Pixel data of an underlying image is converted to an image texture....
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7330164 |
Video controlled detector sensitivity
A method for setting opto-sensor detection sensitivity in a projection video display comprising the steps of sequentially generating video signals of different colors for illuminating a sensor with...
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7289683 |
System and method for scintillation suppression in intensified digital video
A method for scintillation suppression of video images includes receiving a frame of pixels having intensity values and identifying pixels in the received frame having scintillation noise. The...
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7280705 |
Tone correction method using a blending mask
A digital imaging system includes an image sensor, a frame buffer and a tone correction circuit. The tone correction circuit computes tone corrected pixel data using one or more tone correction...
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7277835 |
Boundary representation per feature methods and systems
Computer implemented methods and systems for CAD data exchange, and in particular for creating boundary representations (“breps”) on a feature-by-feature basis are disclosed. According to an emb...
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7221808 |
Image processing device
An image processing device for emphasizing a specified luminance area of an image taken by an image sensor. The contrast between a bright portion and a dark portion of an image taken by the image...
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7002605 |
Image display apparatus for fixing luminance of blank area and varying only luminance of image
An image display apparatus fixes the luminance of a blank area and varies only the luminance of an image. The image display apparatus includes an A/D conversion device to convert an input analog...
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6829494 |
Radio communication terminal and control method therefor
In a radio communication terminal, a microprocessor determines a mode selected by user manipulation of a key input portion. The microprocessor turns on a backlight of a display with the backlight...
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6822625 |
Image processing device
Picture processing apparatus has a pixel judgment circuit and a pixel correction circuit. The pixel judgment circuit includes a target pixel detection circuit for detecting a target pixel having a...
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6791576 |
Gamma correction using double mapping with ratiometrically-related segments of two different ratios
Gamma correction or other power functions are generated for correcting the light intensity for digital pixels. Two levels of mapping of segments are preformed to reduce the total number of segments...
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6741224 |
Video pre-amplifier and method for increasing number of colors of on-screen display signal
A video pre-amplifier for increasing OSD signal colors in a display device and a method thereof includes an OSD interface block, a video signal amplifying block, an IIC bus control unit, and an...
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6710781 |
Image display apparatus having different display mode and method thereof
When an image having an aspect ratio of 16:9 is compressed in a vertical direction to be displayed on a display screen having an aspect ratio of 4:3, a gray scale signal is inserted into a top and...
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6567058 |
Digital convergence correction device and display device
A problem to be solved by the invention is to prevent a digital convergence correction device from lowering in precision of correction performed when a relation between screen raster and effective...
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6483517 |
Circuit for regulating brightness and size of picture in display apparatus
A circuit for regulating the brightness and size of picture in a display apparatus is disclosed, in which a picture brightness regulating circuit and a picture size regulating circuit are...
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6392612 |
Opto sensor signal current detector
A projection display apparatus comprises a display device forming an image for projection to illuminate a display screen. A current source generates a current. A current sink is adjacent to the...
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6344837 |
Three-dimensional image display with picture elements formed from directionally modulated pixels
A three-dimensional image display system includes an array of directionally-modulated pixels or light emitting picture elements. Each directionally-modulated pixel (DMP) emits light which is...
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6288690 |
Video control circuit for a video display device
A video control circuit controls the gains for red(R), green(G), and blue(B) color video signals inputted to a monitor, the brightness and contrast of a video display on the monitor, and the bias...
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6239773 |
Image display device
A drive circuit for a CRT locally enhances the drive signal range in a window. Circuitry is further included for monitoring the average luminosity in the window, and the drive signal range is...
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6195016 |
Fiber optic display system with enhanced light efficiency
A fiber optic display sign has an optical system with enhanced light efficiency so that the display system is suitable for outdoor use. A number of fiber optics have light receiving ends arranged...
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6191760 |
Video input level control circuit in a video appliance
A video input level control circuit in a video display device which can improve picture quality of the video appliance by selectively controlling input levels of the video signals inputted in...
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6091397 |
Automatic screen brightness compensating device and method thereof
Provided is a cathode ray tube video display device, including: a micro computer for receiving data of factors affecting the brightness of a screen with time, computing a decreased amount of the...
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6084564 |
Apparatus for determining a black point on a display unit and method of performing the same
To facilitate determination of a black point on a display unit, a reference brightness region and a comparison brightness region are displayed on the display unit. The former emits at a reference...
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5977711 |
Method and system for optimizing cathode output for aging a cathode ray tube during manufacture
The present invention relates to a method and system for optimizing the output of at least two electron guns in a cathode ray tube for aging the cathode ray tube during manufacture. The system...
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5883985 |
Method for compensating image data to adjust for characteristics of a network output device
To transmit images over a network between an imager and one of several reproduction devices, an correction function is determined which adjusts the image to produce optimal reproductions from the...
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5644325 |
Digital to analog converter with improved output level control
A digital to analog converter is described for a multimedia system in which the magnitude of the analog output is controlled by signals applied to level select inputs of the digital to analog...
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5438341 |
Monitor interface architecture for black level transfer
A computer display device with digital RGB color signal lines, and horizontal and vertical synchronous signal lines. The controller comprising a means for taking out, from one of the digital RGB...
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5396257 |
Mutiscreen display apparatus
The present invention relates to a multiscreen display apparatus in which one large screen is formed by combining screens of a plurality of display units. The multiscreen display apparatus includes...
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5307083 |
Grayscale video conversion system
A multi-shade video conversion system is described to provide an enhanced "Macintosh SE/30" computer to display multi-shade images on the "SE/30" internal CRT. The conventional "SE/30" computer has...
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5260798 |
Pixel intensity modulator
An apparatus to modulate the intensity of a pixel displayed on a screen focused optical energy from a broadband source onto a reflective first face of a planar member. The first face is disposed in...
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5245323 |
Display device
A graphic image is displayed on a CRT screen according to the coordinate data which is sequentially read out of a memory. The memory comprises a first storage area which stores character image...
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5229760 |
Arithmetic technique for variable resolution printing in a ROS
In a raster output scanner, a method of switching video from one raster to the next during a scan without the creation of a visible artifact. A position encoder is used to determine the position of...
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5216412 |
Display monitor image size regulation
A display monitor includes a conventional CRT and associated display drive circuitry together with conventional horizontal and vertical deflection systems. A high voltage system is operated in...
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5150107 |
System for controlling the display of images in a region of a screen
The device of this invention controls a cathode ray tube (CRT) in order to display desired images on a selected region of the screen. Locations on the screen are identified by horizontal and...
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