|
Match
|
Document |
Document Title |
|
|
7627188 |
Error diffusion method and hardware architecture
A system and method for performing threshold stamping are disclosed. First and second threshold values corresponding to first and second pixels may be retrieved from a threshold memory. A plurality...
|
|
|
7623267 |
Image processing method, apparatus and program
The image processing method for obtaining a quantized image from a multiple tone image, the method comprises: an image dividing step of dividing an input image into a plurality of image blocks of a...
|
|
|
7612916 |
Image processing device, image processing method, and computer program
An image processing device includes a memory that is adapted to store an input image; an inverted image generator that is adapted to generate an inverted image, the inverted image corresponding to...
|
|
|
7606436 |
Image encoding apparatus and quantization control method
An image encoding apparatus includes a quantization control section that supplies a rounded Q-scale to a quantization section for quantizing each macroblock according to the rounded Q-scale. A...
|
|
|
7589853 |
Image forming system, and information processing apparatus and method
In an image forming system, an information processing apparatus (host computer) outputs print data to a printer connected to the apparatus through an interface. The apparatus includes an interface...
|
|
|
7570392 |
Error diffusion method and apparatus using weighted vectors along a diagonal to correct for non-ideal ink ejection
A device including: an acquirer acquiring image data having an M-value (M≧3) pixel value; a memory storing nozzle information; another memory storing error diffusion matrices having different...
|
|
|
7565027 |
Countdown stamp error diffusion
Methods and systems for performing threshold stamping are disclosed. A pixel intensity value for a first pixel may be determined. A pixel value for the first pixel may be retrieved from a memory...
|
|
|
7564590 |
Image processing apparatus and method
An image processing method and apparatus is provided that executes conversion processing of image data according to an error diffusion method. A unit processing for one pixel of the original image...
|
|
|
7564589 |
Color error diffusion with error signal offsets
A method for multi-toning an input digital image having input pixels with two or more color channels to form an output digital image having modified output levels. The method includes producing...
|
|
|
7564588 |
Image forming device, image forming method, and recording medium that provide multi-level error diffusion
An image forming device includes a quantization unit which quantizes each pixel of an M-level gradation input image into one of N levels (M>N≧2) through an error diffusion process. An...
|
|
|
7557961 |
Method for setting boundary value, image signal processing method and apparatus, and printing apparatus
A method for setting a boundary value at a level of error diffusion, comprising a step of defining a characteristic curve on a coordinate plane defined by a first axis indicating a perceptually...
|
|
|
7551788 |
Digital image coding device and method for noise removal using wavelet transforms
A digital image coding device based on wavelet transform technology includes a lower-bitplane replacement section which is provided after a coefficient modeling section and before an arithmetic...
|
|
|
7551323 |
Systems and methods for error diffusion
Error diffusion is performed upon input image data. In one aspect, multiple error diffusion processing elements perform error diffusion on a selected pixel in parallel. In another aspect, the error...
|
|
|
7548346 |
Image processing apparatus and method for performing error diffusion based on density values of different color components
Image processing apparatus and image processing method for formation of high quality image by high-speed error diffusion processing by execution of more complicated threshold condition processing...
|
|
|
7542617 |
Methods and apparatus for minimizing requantization error
Techniques and mechanisms for performing error minimizing requantization are provided. Quantized coefficients associated with a bitstream are received. It is determined whether the quantized...
|
|
|
7542170 |
Method for enhancing print quality of halftone images
A method for enhancing the print quality of halftone images makes use of error diffusion to perform halftone image processing to a document. After an RGB image is obtained by scanning the document,...
|
|
|
7532765 |
Run length encoded digital image
Methods, apparatus and computer readable medium are described that compress and/or decompress digital images in a lossless or a lossy manner. In some embodiments, a display controller may quantize...
|
|
|
7522779 |
Image enhancement method and system for fiducial-less tracking of treatment targets
A method and system are presented for enhancing one or more images of an object, so as to increase the visibility within the images of one or more structures within the object. The object may be an...
|
|
|
7502140 |
Image processing apparatus
An error adding step adds together input multi-tone image data and peripheral error information. An adding/subtracting step adds to or subtracts from multi-tone image data calculated by the error...
|
|
|
7486834 |
System and method for dynamically shifting error diffusion data
Error diffusion is performed using a Floyd-Steinberg-like approach. A integer-representation of a running error is compressed by storing only its most significant bits and returning any remainder...
|
|
|
7483169 |
Image processing device, image processing method, image creating device, computer software and record medium
A halftone reproduction processing section ( 29 ) of an image processing apparatus ( 13 ) has a control part that conducts a halftone processing of input image data by subjecting it to an error...
|
|
|
7483029 |
GPU having raster components configured for using nested boustrophedonic patterns to traverse screen areas
In one embodiment, the present invention is implemented as a GPU configured for traversing pixels of an area. The GPU includes a set-up unit for generating polygon descriptions and a rasterizer...
|
|
|
7480078 |
Method and system for performing multi-pixel parallel error diffusion enabling high-speed diffusion processing without increasing the system clock rate
A method and system for performing error diffusion are disclosed. An ordered set of pixels, including a pixel intensity value for each pixel, is received. Each pixel intensity value includes a...
|
|
|
7466454 |
Image processing device and image processing method
An image processing device includes a pre-processing unit, an adder, a quantization unit, a post-processing unit and a surrounding error calculating unit. The pre-processing unit calculates an...
|
|
|
7463387 |
Multilevel value output device
When the input value becomes close to the medium dot relative density value (Den_M), the large dot threshold value (Thre_L) and medium dot threshold value (Thre_M) become close to each other. It is...
|
|
|
7460727 |
Error diffusion method and hardware architecture
A system and method for performing threshold stamping are disclosed. First and second threshold values corresponding to first and second pixels may be retrieved from a threshold memory. A plurality...
|
|
|
7460133 |
Optimal hiding for defective subpixels
A technique for the modification of sub-pixels to hide defects for defective sub-pixels.
|
|
|
7457002 |
Reverse diffusion digital halftone quantization
An improved digital halftoning method that uses an input image's global gray levels to determine the local gray levels of a monochrome output image. Input multi-bit pixels grouped into...
|
|
|
7446903 |
Image processing device
An error utilization factor line, indicative of a relationship between the amount of the error utilization factor K and input data for a present pixel, is determined dependently on characteristics...
|
|
|
7446782 |
Image processing device
This is an image processing device for predicting the lower-order bits of target pixel data, based on one or more pieces of pixel data constituting image data. The image processing device comprises...
|
|
|
7440632 |
Technique for performing error diffusion
A technique to perform error distribution in a graphics system. More particularly, embodiments of the invention include at least one technique to distribute the error resulting from converting...
|
|
|
7440139 |
Systems and methods for controlling a tone reproduction curve using error diffusion
A method of adjusting a TRC of an image is provided. The method involves receiving an image at an input resolution, resampling the image to a processing resolution if the imput resolution and the...
|
|
|
7436969 |
Method and system for optimizing denoising parameters using compressibility
In various embodiments of the present invention, a noisy signal denoiser is tuned and optimized by selecting denoiser parameters that provide relatively highly compressible denoiser output. When...
|
|
|
7436884 |
Method and system for wavelet packet transmission using a best base algorithm
A data compression system and method provides a best base searching method to determine the best orthogonal basis function for wavelet-based, data compression. A processing device may receive data...
|
|
|
7433064 |
Printing apparatus, printing method, image processing apparatus, image processing method, printing program, image processing program, and storage medium
A printing apparatus includes: a unit that generates test pattern data considering visual characteristics, on the basis of a test pattern grayscale value determined on the basis of visual...
|
|
|
7430064 |
Rotation dependent halftone rendering in scanning
A method and system for rotation-dependent halftone rendering. An image input is received from a scanning system or other source, the received image being either a contone image or an...
|
|
|
7420708 |
Method for processing color image data employing a stamp field
A method for processing image data that employs a stamp field that contains data representing a distance metric for use with a variety of error diffusion operations. The distance metric possesses...
|
|
|
7420571 |
Method for processing a gray level in a plasma display panel and apparatus using the same
A system and method for processing a gray level in a display device performs a random error diffusion operation on the video data using a first random coefficient value and a random dithering...
|
|
|
7417772 |
Vector error diffusion
A vector error diffusion (VED) method employable in cycles with respect to a hi-tonal color printing engine which prints bi-tonal color images in a device output color space. The method generally...
|
|
|
7411707 |
Image processing apparatus and method thereof
Even when a color difference diffusion (CD) method which allows high-speed color separation is used, it is difficult to attain preferred color reproduction corresponding to various user's...
|
|
|
7369710 |
Image processing device, image processing method and image processing program
An image processing device performs an error diffusion on multilevel input image data to generate multilevel output image data that has fewer levels than the multilevel input image data. The image...
|
|
|
7369276 |
Multi-level halftoning providing improved texture uniformity
A method for multi-level halftoning an input digital image to form an output digital image which includes a multi-level error diffusion halftoning process incorporating periodic dither signals...
|
|
|
7362472 |
Color error diffusion
A method for multi-toning an input digital image having input pixels with two or more color channels to form an output digital image having modified output levels. The method includes producing an...
|
|
|
7355747 |
System for improving the speed of data processing
An apparatus includes a first processing device to perform halftoning on a first set of values corresponding to a first set of pixels and a second processing device to perform halftoning on a...
|
|
|
7353447 |
System and method for representing compressed information
The present invention provides a system and method for storing re-synchronization, error correction and/or error detection data within an existing communication protocol, while still maintaining...
|
|
|
7352916 |
Method of coding artifacts reduction
A method to reduce coding artifacts within a discrete decoded picture includes a spatial and/or temporal filtering with respective filter characteristics dependent on an image quality value (Q)....
|
|
|
7352489 |
Color error diffusion method for multi-level output device
An improved color-image error diffusion process for use in conjunction with the operation of a multi-level, halftone, color-image output device. This process involves, first, performing...
|
|
|
7342684 |
Image processing method and apparatus
It is an object of this invention to prevent a false edge phenomenon in quantization processing for a multilevel image. In order to achieve this object, according to the invention, (1) a reference...
|
|
|
7339706 |
Error diffusion processing circuit for an image signal which improves an output image
An error diffusion processing circuit includes an error diffusion processing unit and a noise signal unit. The error diffusion processing unit generates a first output image signal of a first pixel...
|
|
|
7336398 |
Error prediction method for halftone processing
An error diffusion method applied to halftone processing for image data. The image data comprise a plurality of pixels. The method comprising the steps of dividing the image data into a plurality...
|