摘要:
Systems and methods of face and skin sensitive image enhancement are disclosed. In one aspect, a face map that includes for each pixel of an input image a respective face probability value indicating a degree to which the pixel corresponds to a human face is calculated. A skin map that includes for each pixel of the input image a respective skin probability value indicating a degree to which the pixel corresponds to human skin is ascertained. The input image is enhanced with an enhancement level that varies pixel-by-pixel in accordance with the respective face probability values and the respective skin probability values. In another aspect, a facial content measurement value indicating a degree to which an input image contains human face content is ascertained. A tone-correction process is tuned in accordance with the facial content measurement value. The input image is enhanced in accordance with the tuned tone-correction process.
摘要:
A method for block truncation-type compressed domain image processing. Image data is received. Block truncation compression (BTC) is performed on the image data to generate a compressed representation of the image data. The broken pixel representation is enhanced in a compressed domain.
摘要:
A method for a digital printing press includes estimating a developer voltage by applying a developer voltage estimation model to measurements of state parameters of the digital printing press.
摘要:
A technique for isolating faults in a communication network is described. The techniques can be utilized in high speed communications networks such as all-optical networks (AONs). The technique is distributed, requires only local network node information and can localize attacks for a variety of network applications. The technique is particularly well suited to the problem of attack propagation which arises in AONs. The technique finds application in a variety of network restoration paradigms, including but not limited to automatic protection switching and loopback protection and provides proper network operation reduced, or in some cases no data loss and bounded delay time regardless of the location of the attack or the physical span of the network. Since the technique is distributed, and its associated delays do not depend on the number of nodes in the network. Hence the technique avoids the computational complexity inherent to centralized approaches. It is thus scalable and relatively rapid. Furthermore, the delays in attack isolation do not depend on the transmission delays in the network. A network management system can therefore offer hard upper-bounds on the loss of data due to failures or attacks. Fault localization with centralized algorithms depends on transmission delays, which are proportional to the distance traversed by the data. Since the described techniques for fault localization are not dependent on centralized computations, the techniques are equally applicable to local area networks, metropolitan area networks, or wide area networks.
摘要:
A method for compressing a digital image to be printed, the image consisting of pixels. It is determined, for blocks of pixels, whether a block contains a graphical structure that is to be maintained without loss because it is of a type that can be accurately perceived by a human observer. The block is encoded losslessly into a less voluminous format, if such a graphical structure has been found. Otherwise, the block is compressed lossily, if no such graphical structure has been found.
摘要:
Method and system embodiments of the present invention are directed to automated identification of regions within digitally-encoded images that correspond to objects and features of scenes captured in the digitally-encoded images, a process referred to as ‘perceptual segmentation’ of an image. Regions or segments within an image are first identified by any of various region-identifying or segmentation methods. For each region or segment, features of pixels within the region or segment are employed to compute one or more segment features. The segment features are used, in turn, to identify the region or segment as belonging to a particular type of region or segment, and the region is then accordingly labeled or tagged as a region or segment of the determined type.
摘要:
A method for integrating a plurality of existing software applications is disclosed. The method comprises executing the plurality of existing software applications. A composite graphical user interface (GUI) is created containing selected objects. A user's interactions with each of the plurality of existing software applications are recorded to record at least one function from each of the plurality of existing software applications. The at least one recorded function from each of the plurality of existing software applications is assigned to at least one of the selected objects in the composite GUI.
摘要:
An image is segmented into image regions. Each of the image regions is represented by a respective vertex. A graph of the vertices interconnected by edges, each of which has a respective edge weight value, is built. The graph is partitioned into respective disjoint subgraphs based on the edge weight values. The partitioning of one or more of the subgraphs into respective subgraphs is repeated. A partition tree data structure that describes a partitioning hierarchy of parent-child relationships between the subgraphs is produced.
摘要:
In a method of processing an image containing undesirable pixels, a coarse identification of a location of the undesirable pixels is received. The coarse identification includes identification of at least one undesirable pixel and at least one desirable pixel in the image. An area in the image to be analyzed for undesirable pixel values is automatically determined according to the coarse identification received. In addition, in the area determined to be analyzed, the pixels are automatically classified as one of undesirable and desirable and the classifications of the pixels are stored.
摘要:
Modification of a digital image includes determining a likelihood of a pixel belonging to a memory color region (110). The memory color region has a preferred color. The modification further includes shifting original color of the pixel toward the preferred color (120). The original color is shifted by an amount that is a function of the likelihood and that is generally less than the difference between the original and preferred colors.