Xerox Corporation

Other

Fuji Xerox Co., Ltd.

James E Bollman

Dennis Lee Venable

Reiner Eschbach

William A Fuss

Michael Robert Campanelli

Louis D Mailloux

Takashi Nagao

Phillip J Emmett

Toshiya Yamada

Kazuya Yamada

Ricardo L De Queiroz

David E Rumph

Terry C Wells

Thomas C Rich

Patrick A Fleckenstein

Ramana L Rao

Myra E Van Inwegen

A system and method are disclosed for an image processing system including a threaded scheduler providing compact and efficient dataflow as a pipeline management and data flow layer.

Image processing system and method employing a threaded scheduler

The present application relates to a method and system for storing higher resolution images during capture and storage of a movie comprising lower resolution images.

Hybrid image and movie imaging system and method

An illuminated edging system includes an edging section having an upper portion and a lower portion; a light strand (e.g. a rope light) disposed inside the upper portion; and an electrical connector at an end of the light strand and disposed inside the upper portion. The translucent upper portion and the lower portion are integrally formed of plastic. The upper portion and lower portion may be co-extruded so that they are of different materials. A translucent coupler joins adjacent edging sections. The coupler may be formed as a slotted cylinder surrounding the upper portion, the lower portion extending through the slot. A weather-resistant connector may be disposed inside the upper portion of the edging section, protecting the electrical connector.

Illuminated landscape edging system

A method and apparatus for modifying the perceived quality of a document or image. The method includes inputting image or document data representing the image or document to be modified, analyzing the image or document data for one or more objects, evaluating the objects as one or more of acceptable, improvable or deficient based on one or more quality factors. For each object that is evaluated as other than acceptable, the method and apparatus creates, displays and possibly applies a quality recommendation for the objects.

Systems and methods for checking image/document quality

A method and apparatus for interactively and automatically enhancing image data by modifying one or more features of an image. The method includes inputting image data representing an image to be modified, analyzing the image for features to be modified, automatically selecting one or more feature to be modified, determining a first degree of modification using a automatic image enhancement techniques or a stored user preference, reversibly modifying the image based on the selected image feature and the first degree of modification, showing the image before improvement, showing the image after improvement and allowing the user to further modify at least one feature of the image data.

Systems and methods for interactively using and training an automatic image processing technique

A method and device for describing a complex color raster image as a collection of objects in a hierarchical and device independent format can be carried out using an apparatus for generating an image capable of being displayed and printed.

Structured image (SI) format for describing complex color raster images

This invention provides a device and method for processing data with a data processing string having push type and pull type tasks. Push tasks processes data and pushes the output of the process to downstream push tasks based on link paths. On the other hand, pull tasks sends data requests via upstream links to upstream pull tasks to acquire data for processing. Data processing strings are usually configured with either push tasks and/or pull tasks to maintain consistency in the direction of links. The preferred embodiments of this invention provides a method and apparatus for inserting push tasks in a string of pull tasks and inserting pull tasks in a string of push tasks. The inserted push and pull tasks are enhanced with forward and backward message links and interface tasks are provided to interface between the inserted pull or push tasks in the strings of push or pull tasks, respectively.

Method and apparatus for integrating pull and push tasks in pipeline data processing

A scheme that generates image processing source code for custom applications automatically by using structured image (SI) technology in a way that takes advantage of the unbound and incomplete features of SI. Resulting custom applications developed by this method can be defined and converted to running source code in minutes, or shipped to a co-user of the system in a compact portable form for remote code generation. Nested sub-component references and associated image processing operations necessary to generate an output raster image are obtained from a structured image template. Image processing operations and the order of said operations within an image processing definition are stored within the structured image definition. Unbound structured image references to undefined component objects and incomplete structured image references to image processing operations and parameters not explicitly defined within said structured image are input options. Source code is generated from structured image definition language automatically utilizing a modified structured image render program which analyzes said structured image definition language. The code can be used for further rendering or code modification activities.

Image processing code generation based on structured image (SI)

An apparatus, method and system optimizes Huffman codes within the Huffman tables without requiring buffering an entire uncompressed original image. Compression of a whole image is performed prior to storage in a buffer. Therefore, the necessary buffer size for performing computation of symbol frequencies in order to optimize Huffman codes is reduced. Default Huffman codes are used to pre-compress the image for storage in the buffer. Simultaneously, the input symbol frequency is determined to produce optimized Huffman codes. The optimized Huffman codes are used to optimally re-encode the encoded image data to reduce the space of the re-encoded data. The optimally encoded image data can then be stored and/or transmitted.

Minimal buffering method and system for optimized encoding tables in

The present invention describes a method for automatic cropping of images containing regions where intensity levels are uniform and other regions where intensity levels vary considerably. An image to be automatically cropped is scaled down to a grid and divided into non-overlapping blocks. The mean and variance of intensity levels are calculated for each block. Based on the distribution of variances in the blocks, a threshold is selected for the variance. All blocks with a variance higher than this threshold variance are selected as regions of interest. The regions of interest are then cropped to a bounding rectangle.

Automatic image cropping

A method of correcting out-of-range 8-bit pixel values, which should range from 0 to 255 by successively finding an out-of-range pixel, correcting it by adding (subtracting) an amount to restore that value to 0 (255), and then subtracting (adding) an equal amount to an adjacent pixel or pixels. An alternative, most useful for text, is to find an out-of-range pixel, and then replace it, and all adjacent pixels that are within a predetermined limit of 0 (255), with 0 (255).

Artifact reduction for large dynamic range input data in JPEG compression

A method and device for describing a complex color raster image as a collection of objects in a hierarchical and device independent format. The purpose of structured imaging (SI) is to expand the scope of a raster image to a collection of individually manipulable component objects. An SI is a hierarchical description of a single output image raster which may be used as one component of a page in a structured document. Objects contributing to the output raster may originate from text, graphics, other rasters or a combination thereof, and all maintain their heritage for selectability and modification. The SI describes not only the source data but also the image processing operations required for rendering the output raster. SI technology supports re-editability, customization and enhancement, automatic image assembly and high performance imaging. Thus, such a model has implications not only in an image editing and processing arena, but also in the filing and printing services used for image handling.

Structured image (Sl) format for describing complex color raster images

A method for varying the color of an image including lines and background. Where the image includes the colors black and white and a plurality of gray pixels, where gray refers to the presence of pixel values between the maximum and minimum pixel values, inclusive, the image is first converted to a color space, such as for example, r, g, b (red-green-blue). Pixel values are thresholded for differentiation between lines and background. When pixels have a value indicating that the pixel is background, that pixel is set to a background color that has been previously selected. Otherwise, that pixel is set to a foreground color. The result is that background is set to a single color, and lines are set to a second color. Alternatively, where intermediate values are present, the foreground color value may be added to the intermediate level color value to produce a gradually varying colored line.

Converting lines to other colors

An image editor includes a pixel buffer for storing color data for an image to be edited. A monitor screen displays the image and an active area having a graphic that represents two color descriptor variables. A pair of overlays controls the respective color descriptor variables singly or together. In one embodiment, the active area is a circle with a color wheel about which hue varies angularly and along the radius of which chroma varies. A radial overlay line controls hue and a concentric radially movable ring controls chroma. In another embodiment among others, the active area is a square with a checkerboard graphic. Black and white squares within the checkerboard indicate increasing brightness in the vertically upward direction and increasing contrast in the rightward horizontal direction. Horizontal and vertical hairline overlays control the brightness and contrast, respectively.

Image editing system and method having improved multi-dimensional

Image appearance characteristics for a display may be defined by two data sets, a first standard data set for the image, and a second set for the area to be dodged, where the dodged area is separated from the remainder of the image by a series of edges. The appearance of any particular pixel in the original is determined by the first bit, or control plane, of the image data, the state of which indicates that pixel appearance is determined by one of the first or second data sets. To soften the transition of the image from one data set to another data set, at the dodged area edges, a filter function is applied to the control plane values, acting on areas adjacent the edge, to create a distribution of control plane values over an area adjacent to the edge. Error diffusion or dithering of the filtered values is then applied to quantize intermediate values generated by the filter function to legal values giving the illusion that the edge changes gradually from the first data set to the second data set, thereby creating a softened edge effect, using only a single control bit in the image data.

Growing community of inventors

Williamson, NY, United States of America

James E Bollman