Eastman-kodak Company

Apple Inc.

Michael S Schwartz

Robert F Poe

Gary H Newman

H Scott Gregory, Jr

Christopher J Enscoe

James O Schreckengast

Anne C Rourke

Charles E Parry

Wendy Swanbeck

Linda C Blomstedt

Louis J Sakey

A system for managing distributed digital assets and related metadata in a network, including several interconnected nodes, each of the interconnected nodes providing accessibility to the distributed digital assets via user controlled stores and caching subsystems such that the management of the assets and related metadata is based on predetermined criteria. Each node includes a caching subsystem, a metadata store, a controller, a user-controlled asset component, and a networking subsystem for communication between each of the nodes. The interconnected nodes provide support for platform operation of client applications.

System for managing distributed assets and metadata

A method for viewing digital video assets using a distributed network comprising a user on a first node requesting to view a digital video asset stored on a second node; relaying the request from the first node to the second node; establishing a peer-to-peer link between the first and second nodes; creating a video stream from the requested digital video asset on the second node using a standard video stream server; receiving the video stream using a stream relay client on the second node and converting it into a form that is compatible with the peer-to-peer link; sending the converted video stream to the first node over the peer-to-peer link; receiving the converted video stream using a stream relay server and converting it into a standard video stream form; and viewing the video stream on the first node of the distributed network using a standard video stream client.

Method for viewing videos on distributed networks

The invention provides a technique of scaling a digital filter and of adjusting the width of a digital filter. The technique involves truncating a filter, attenuating its new endpoints and then adjusting the truncated filter by mixing in linear combinations of a set of basis vectors in a way which preserves the linearly defined properties of the original filter. A filter can also be created by defining a spectrum of the filter using a large number of points, performing a Fourier transform on the filter spectrum creating a spatial filter, and reducing a size of the spatial filter by truncating the spatial filter producing a truncated filter and combining the truncated filter with a set of basis vectors.

System for adjusting size and scale of digital filters and creating

A system that allows a user to tune a designated a color profile for a specific color input or output device thereby creating a device specific profile from a profile for a similar device or from a generic device profile. The color values associated with the device, either patches input to a scanner or patches output by a display or a printer, are measured using a colorimetric color measuring device. These measured values are used to adjust or tune the profile to produce a more accurate profile for the particular device. The adjustment includes curve fitting the measured color values and simulated color values to create a mapping from the measured values to the simulated values. The curve is used to adjust the profile. To account for gamut shifts the color values can be mapped into the gamut of the device during tuning curve creation.

System for creating a device specific color profile

This is a method for adjusting output device profiles for four-color devices such as offset presses. The user of this invention starts by selecting a base profile. This base profile produces satisfactory color but does not have the desired amount of Gray Component Replacement (GCR). The user of this invention makes use of this invention to adjust the GCR of the output profile until it is at some desired level. The invention then produces a new output profile which produces the same color as the base profile but which has the desired degree of GCR.

Computer program product for modifying the black channel of an output

A transform table creation system that provides nonuniform grid point spacing for input and output tables of a color transformation. The nonuniform spacing is linearly related to the distance from a central point in a region of interest. The reduced size input and output tables allow creation of a reduced size composite table.

Method and apparatus for computing color transformation tables

An electronic method measures the color cast of a digital representation of a natural scene. Colors of the natural scene are represented in digital electronic form as pixels. Neighborhoods of pixel colors in a chrominance histogram are isolated. Neighborhoods may be isolated by convolving the chrominance histogram with a two-dimensional filter. Lighting color from the scene is measured from isolated color neighborhoods by: a) determining lines in a chrominance plane which lie along major axis of isolated color neighborhoods, and b) selecting a convergence-chrominance value near which the detected lines converge. Lines in the chrominance plane may be weighted so that lines from neighborhoods that are more reliable indicators of lighting contribute more to the convergence-chrominance than less lines from less reliable neighborhoods. The image is then transformed so as to map the measured lighting value to another value, such as neutral.

Method for determining color of an illuminant in an image based on

A method and apparatus for generating a modified electronic image combines multiple image transforms into a single composite transform, and then modifies the electronic image in accordance with the composite transform. The composite transform includes sample values sequentially modified in accordance with each of the multiple image transforms being combined. The method and apparatus further provides a user interface allowing a user to select individual transforms for composition. The use of a composite transforms allows a user to interact with the image processing system more quickly and interactively while obtaining a desired modified image.

Color image processing system for preparing a composite image

An image processing system redistributes image luminance values in an image represented in u'v'L* space to achieve a near-optimal fit of luminance data to available dynamic range and to enhance the shape and detail of the resultant image. Redistribution may be accomplished by passing the image through a filter having a peak response at a spatial frequency at which the human eye is highly sensitive, and then equalizing a cumulative histogram of filtered pixels. An image may be transformed to compensate for tone compression which accompanies printing processes.

Automated tone correction apparatus and method using filtered histogram

A method for communicating a transform definition to a destination device. The transform definition outputs image parameter data based on input image data and has a channel corresponding to each output image parameter. Each channel has at least one input table, an output table and a grid table representing an input/output relation of an image transformation. The destination device is provided with: identification data identifying the communication as that of a transform definition; version data for distinguishing the transform definition from other versions of the transform definition; size data specifying a size of one of the grid table's dimensions for each channel's grid table; with input table, output table, and grid table data of any input, output, and grid table which is shared by a plurality of channels; and with input table, output table and grid table data of any private input, output, and grid tables.

Growing community of inventors

Belmont, MA, United States of America

Michael S Schwartz