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公开(公告)号：US20060146193A1
公开(公告)日：2006-07-06
申请号：US11027339
申请日：2004-12-30
申请人： Chaminda Weerasinghe , Magnus Nilsson , Yu Shi
发明人： Chaminda Weerasinghe , Magnus Nilsson , Yu Shi
摘要： A low complexity apparatus (100) and method (200) for variable color saturation, performed in combination with RGB to YUV color space conversion, is used to direct input signal noise away from a luminance channel, to which the human eye is highly sensitive, and into chrominance channels. The apparatus (100) is adapted to perform color conversion and variable color saturation of input primary color signals red, green and blue to produce variable chrominance signals and luminance invariance. The apparatus includes a luminance composition module (105) dependent on non-varying luminance composition coefficients. A first chrominance composition module (110) is dependent on the non-varying luminance composition coefficients and includes a first variable saturation coefficient that is multiplied by the difference between low pass filtered red and green primary color signals. A second chrominance composition module (115) is also dependent on the non-varying luminance composition coefficients and includes a second variable saturation coefficient that is multiplied by the difference between low pass filtered blue and green primary color signals.
摘要翻译： 使用与RGB至YUV色彩空间转换结合执行的用于可变色彩饱和度的低复杂度装置（100）和方法（200）来将输入信号噪声引导离开人眼高度敏感的亮度通道， 并进入色度通道。 该装置（100）适于对输入的原色信号红色，绿色和蓝色进行颜色转换和可变色饱和度，以产生可变色度信号和亮度不变性。 该装置包括依赖于不变亮度组成系数的亮度组合模块（105）。 第一色度组合模块（110）取决于非变化亮度组成系数，并且包括乘以低通滤波的红色和绿色原色信号之间的差的第一可变饱和度系数。 第二色度组合模块（115）还取决于不变亮度组合系数，并且包括乘以低通滤波的蓝色和绿色原色信号之间的差的第二可变饱和系数。
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公开(公告)号：US10013224B2
公开(公告)日：2018-07-03
申请号：US14698393
申请日：2015-04-28
IPC分类号： G06F3/12
CPC分类号： G06F3/1288 , G06F3/1206 , G06F3/1245
摘要： There is disclosed methods, computing devices, and computer-readable media for printing and encoding RFID (radio frequency identification) labels. An RFID label document conforming to the Portable Document Format (PDF) is retrieved, the RFID label document including printable content and RFID encoding data embedded as metadata. The RFID encoding data is extracted from the RFID label document. Printable content of the RFID label document is displayed in a PDF viewer application. A print driver called by the PDF viewer application converts the printable content of the RFID label document into printer control language. The previously extracted RFID encoding data is incorporated into the printer control language, and the printer control language with incorporated RFID encoding data is transmitted to an RFID label printer.
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公开(公告)号：US20090116045A1
公开(公告)日：2009-05-07
申请号：US12250973
申请日：2008-10-14
申请人： Barry TRAN , Lilian Ji , Chaminda Weerasinghe , Yasuhiro Ohashi
发明人： Barry TRAN , Lilian Ji , Chaminda Weerasinghe , Yasuhiro Ohashi
IPC分类号： G06K15/02
CPC分类号： G06F3/1208 , G06F3/122 , G06F3/1242 , G06F3/1256 , G06F3/1285
摘要： The subject application is directed to a system and method for device-specific image manipulation. First, output device capability data corresponding to capabilities of available document output devices is stored in associated memory. Electronic document data having image data corresponding to a plurality of sub-images is then received. Device selection data is then received corresponding to a selected document output device. Capability data representing the output capabilities of the selected device is then retrieved. Image characteristic data is then determined and tested relative to the device output capability data. Selected sub-images are then merged into a single image and the image is classified in accordance with the image characteristic data. Resolution and colorant reduction are then determined in accordance with the testing output. The determined resolution and colorant reductions are then applied to the single image of the received electronic document data and output by the selected document output device.
摘要翻译： 主题应用涉及用于设备特定图像操纵的系统和方法。 首先，对应于可用文档输出设备的能力的输出设备能力数据被存储在相关联的存储器中。 然后接收具有与多个子图像对应的图像数据的电子文档数据。 然后，对应于所选择的文档输出设备接收设备选择数据。 然后检索表示所选设备的输出能力的能力数据。 然后，相对于设备输出能力数据确定和测试图像特征数据。 然后将所选择的子图像合并成单个图像，并根据图像特征数据对图像进行分类。 然后根据测试输出确定分辨率和着色剂减少量。 然后将确定的分辨率和着色剂减少量应用于所接收的电子文档数据的单个图像并由所选择的文档输出设备输出。
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公开(公告)号：US06982752B2
公开(公告)日：2006-01-03
申请号：US09938046
申请日：2001-08-23
CPC分类号： H04N9/646
摘要： A method and a color correction circuit (2) for color correcting a digital color sampled signal. The color correction circuit (2) has three color input channel processing circuits (31,32,33) each of the color input channel processing circuits (31,32,33) has an adder (34) with a corrected color channel output □ a first multiplied input, a second multiplied input, a third multiplied input and an uncorrected color channel input providing for direct coupling the adder to an output of a color image sensor. The processing circuits (31,32,33) have a Low Pass Filter (35,39,40) with a filter input coupled to the uncorrected color channel input. The processing circuits (31,32,33) each also have input channel multipliers (36,42,46) and two further multipliers all having an output coupled to inputs of a respective adder (34,41,45).
摘要翻译： 一种用于颜色校正数字彩色采样信号的方法和颜色校正电路（2）。 颜色校正电路（2）具有三个颜色输入通道处理电路（31,32,33），每个彩色输入通道处理电路（31,32,33）具有加法器（34），其具有校正的色彩通道输出 第一乘法输入，第二乘法输入，第三乘法输入和未校正的彩色通道输入，用于将加法器直接耦合到彩色图像传感器的输出。 处理电路（31,32,33）具有低通滤波器（35,39,40），滤波器输入耦合到未校正的颜色通道输入。 处理电路（31,32,33）各自还具有输入信道乘法器（36,42,46）和两个另外的乘法器，其全部具有耦合到相应加法器（34,41,45）的输入的输出。
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公开(公告)号：US20160321020A1
公开(公告)日：2016-11-03
申请号：US14698393
申请日：2015-04-28
IPC分类号： G06F3/12
CPC分类号： G06F3/1288 , G06F3/1206 , G06F3/1245
摘要： There is disclosed methods, computing devices, and computer-readable media for printing and encoding RFID (radio frequency identification) labels. An RFID label document conforming to the Portable Document Format (PDF) is retrieved, the RFID label document including printable content and RFID encoding data embedded as metadata. The RFID encoding data is extracted from the RFID label document. Printable content of the RFID label document is displayed in a PDF viewer application. A print driver called by the PDF viewer application converts the printable content of the RFID label document into printer control language. The previously extracted RFID encoding data is incorporated into the printer control language, and the printer control language with incorporated RFID encoding data is transmitted to an RFID label printer.
摘要翻译： 公开了用于打印和编码RFID（射频识别）标签的方法，计算装置和计算机可读介质。 检索符合便携式文件格式（PDF）的RFID标签文件，RFID标签文档包括作为元数据嵌入的可打印内容和RFID编码数据。 从RFID标签文档中提取RFID编码数据。 RFID标签文档的可打印内容显示在PDF查看器应用程序中。 PDF查看器应用程序调用的打印驱动程序将RFID标签文档的可打印内容转换为打印机控制语言。 先前提取的RFID编码数据被并入到打印机控制语言中，并且具有结合的RFID编码数据的打印机控制语言被发送到RFID标签打印机。
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公开(公告)号：US07928992B2
公开(公告)日：2011-04-19
申请号：US11755477
申请日：2007-05-30
申请人： Dakai Liu , Thevan Raju , Abhijit Mandal , Derek Seow , Leopold Bobrowski , Chaminda Weerasinghe
发明人： Dakai Liu , Thevan Raju , Abhijit Mandal , Derek Seow , Leopold Bobrowski , Chaminda Weerasinghe
IPC分类号： G09G5/02
CPC分类号： G06F17/211 , G06T11/001 , G06T2210/62
摘要： The subject application is directed to a system and method for transparent object rendering. An electronic document, inclusive of a plurality of objects, is first received. The electronic document is then parsed so as to generate a transparency table. The generated table includes entries corresponding to transparency characteristics of each of the objects. Each object of the received electronic document is then processed in accordance with a corresponding transparency table entry. The system further comprises means adapted for generating a scan-line representation of each of the plurality of objects, the scan-line representation including a scan-line corresponding to an associated backdrop and a scan-line corresponding to associated pixel data. The received electronic document is thereby rendered so as to generate a rendered document.
摘要翻译： 主题应用涉及用于透明对象呈现的系统和方法。 首先接收包括多个对象的电子文档。 然后解析电子文档以生成透明度表。 所生成的表包括对应于每个对象的透明特性的条目。 接收到的电子文档的每个对象然后根据对应的透明度表条目进行处理。 该系统还包括适于生成多个对象中的每一个的扫描线表示的装置，扫描线表示包括对应于相关联的背景的扫描线和对应于相关联的像素数据的扫描线。 由此呈现所接收的电子文档，以便生成呈现的文档。
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