摘要:
A system and method for recoloring color objects selectively applies color processing operations in a particular pipelined sequence to offer improved performance and quality of color processing. The recoloring sequence includes a transformation by a 5×5 matrix that handles various types of transformations in the color space of the color object, a gamma correction, a bi-level thresholding operation, and a conversion into a color space, such as the CMYK space, for an output device. Each of these operations in the recoloring sequence may be selectively activated or deactivated depending on the attributes of the color object being processed and the desired recoloring effects. The transformation with the 5×5 matrix allows various transformation operations, such as rotation, scaling, translation, shearing, and perspective in the color space of the color object to be combined and performed in a single step, resulting in significantly improved processing efficiency.
摘要:
Systems and methods are provided for color management in connection with a variety of computing devices having different color display characteristics. The X11 graphics platform is augmented to support color management systems, such as ICC, sRGB and scRGB, which begin and end with device dependent colors. CMYK color spaces as well as extended RGB color spaces within X11r6 are also supported, thus extending the X11r6 graphics platform to support any modem color management standard.
摘要:
A system and method converts input color data in different formats into a working color space. In the case that the input data includes a device color profile and the desired working color space is an RGB space, gamma information of the input data may be extracted from the color profile. In a Simplified extraction process, the gamma information may be extracted by combining one-dimensional LUTs in the profile in a gray-scale conversion to form a gamma table. When the color profile is a more complex profile, such as one of the regular ICC profile format, a full extraction process may be used, in which gamma information is derived from each of the front end, middle and back end portions of the profile. The derived gamma information may then be combined to provide a final gamma table.
摘要:
Various embodiments provide for a layered approach to developing operating system platform components such as a color management system. This can be accomplished by providing new functionality and by utilizing an existing API module comprising existing APIs to receive input that can be associated with either current functionality, legacy functionality, or the new functionality. Furthermore, a rule-based module conceptually located below the operating system's existing public API module can be used to determine the appropriate processing functionality for the received input—which can then be processed accordingly.
摘要:
A document with one or more analog markups is obtained. An original electronic document corresponding to the document is also identified. The one or more analog markups are converted to one or more digital annotations, and the one or more digital annotations are stored in one or more parts of a package of the original electronic document.
摘要:
Enhancing user experiences using aggregated device usage data includes receiving aggregated usage data for a device, such as a computing device and/or a peripheral device. A current user context for the device is identified, and based on the aggregated usage data and the current user context an enhanced user interface is generated.
摘要:
A system, a method and computer-readable media for collecting device usage information from portable devices. The portable devices are enabled to maintain device operation parameters. This information is communicated from a portable device to a host device. The host device may communicate the received information over a network to a database. The database may consolidate the device operation parameters from multiple portable devices.
摘要:
A system and method for image acquisition enables selective automated application of color management to color image data generated by an image-capturing device by the device driver for the device. In the image acquisition system, each image-capturing device has properties or operation parameters that can be set to control the operation of the device. During an image acquisition operation, color image data generated by the image-capturing device are transmitted to the device driver. If the operation parameters of the device are set to indicate that color management is to be performed, the device driver calls color management functions provided by the operating system to perform the desired color operation, such as a color space conversion, on the received color image data. The processed color image data are then sent to the image-processing application for further processing or editing.
摘要:
An extended colorspace which has a higher accuracy and a wider gamut than sRGB color space is disclosed. The extended color space includes an alpha channel which defines the translucency of the color image. The alpha channel is different from known alpha channels in that the inventive alpha channel can represent “super transparent” and “super opaque” values by allowing the alpha parameter (α) to be greater than 1 and less than 0. A data structure for storing the extended colorspace information has three fields, a sign field, an integer field and a decimal field. The sign field defines whether an integer is negative or positive. The integer field defines the integer, wherein the integer defines the super or under saturated values for color and alpha components. The decimal field defines the fine detailed information for the value of the color and alpha components.
摘要:
An extended colorspace which has a higher accuracy and a wider gamut than sRGB color space is disclosed. The extended color space includes an alpha channel which defines the translucency of the color image. The alpha channel is different from known alpha channels in that the inventive alpha channel can represent “super transparent” and “super opaque” values by allowing the alpha parameter (&agr;) to be greater than 1 and less than 0. A data structure for storing the extended colorspace information has three fields, a sign field, an integer field and a decimal field. The sign field defines whether an integer is negative or positive. The integer field defines the integer, wherein the integer defines the super or under saturated values for color and alpha components. The decimal field defines the fine detailed information for the value of the color and alpha components.