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公开(公告)号：US08670166B2
公开(公告)日：2014-03-11
申请号：US13454714
申请日：2012-04-24
申请人： Chang-Hsien Sung , Chien-Shen Chien
发明人： Chang-Hsien Sung , Chien-Shen Chien
CPC分类号： H04N1/46 , H04N1/6027
摘要： A method of automatic white balance adjustment for a scanner is described hereinafter. First, a light source provides a white light to make the scanner scan a document and get an initial image of the document. Secondly, red, green and blue chromatic values of a background color are obtained in the initial image. Next, a factor is calculated based on the chromatic values and a calibration value which is stored in a calibration sheet. Lastly, the scanner automatically adjusts a brightness ratio of the red, green and blue lights of the light source according to the factor, and then rescans the document to get a final image which has a processed background color. Therefore, the final image having the background color close to white is in favor of identification. Furthermore, the adjustment is executed in the process of the scanner rescanning the document so that the step of executing adjustment by software can be eliminated.
摘要翻译： 下面描述扫描仪的自动白平衡调整方法。 首先，光源提供白光，使扫描仪扫描文档并获得文档的初始图像。 其次，在初始图像中获得背景颜色的红色，绿色和蓝色色值。 接下来，基于存储在校准表中的色值和校准值来计算因子。 最后，扫描仪根据因素自动调整光源的红，绿，蓝光亮度比，然后重新扫描文档以获得具有处理背景颜色的最终图像。 因此，背景颜色接近于白色的最终图像有利于识别。 此外，在扫描仪重新扫描文档的过程中执行调整，使得可以消除通过软件执行调整的步骤。
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公开(公告)号：US20120206775A1
公开(公告)日：2012-08-16
申请号：US13025177
申请日：2011-02-11
IPC分类号： H04N1/32
CPC分类号： H04N1/00129 , H04N1/00108 , H04N1/00204 , H04N1/00347 , H04N1/0405 , H04N1/0417 , H04N2201/0041 , H04N2201/0055 , H04N2201/0081
摘要： A system for real time image transmission and preview and a method thereof are applied on a scanner having a predetermined format therein, and an electrical device having a display module. The scanner scans a document in lines along a direction repeatedly according to the predetermined format. The scanner can promptly get an image and then wirelessly send the image out after each linearly scanning a part of the document. The electrical device wirelessly receives the predetermined format information and the image sent out by the scanner, and further edits a format of the image to fit in with the predetermined format so as to make the image capable of being displayed by the display module. Wherein the display module promptly displays the image thereon after each linearly scanning a part of the document along the direction and the image get thereby is received by the electrical device.
摘要翻译： 一种用于实时图像传输和预览的系统及其方法应用于其中具有预定格式的扫描仪，以及具有显示模块的电气设备。 扫描仪根据预定的格式沿着重复的方向扫描文档。 扫描仪可以及时获取图像，然后每次线性扫描文档的一部分后无线发送图像。 电气设备以无线方式接收由扫描仪发送的预定格式信息和图像，并且进一步编辑图像的格式以适应预定格式，以使图像能够被显示模块显示。 其中，在沿着该方向对文档的一部分进行线性扫描之后，显示模块迅速地显示其上的图像，并且由此被图像所接收。
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公开(公告)号：US20130278978A1
公开(公告)日：2013-10-24
申请号：US13454714
申请日：2012-04-24
申请人： Chang-Hsien Sung , Chien-Shen Chien
发明人： Chang-Hsien Sung , Chien-Shen Chien
IPC分类号： H04N1/46
CPC分类号： H04N1/46 , H04N1/6027
摘要： A method of automatic white balance adjustment for a scanner is described hereinafter. First, a light source provides a white light to make the scanner scan a document and get an initial image of the document. Secondly, get red, green and blue chromatic values of a background color in the initial image. Next, calculate a factor based on the chromatic values and a calibration value which is stored in a calibration sheet. Lastly, the scanner automatically adjusts a brightness ratio of the red, green and blue lights of the light source according to the factor, and then rescans the document to get a final image which has a processed background color. Therefore, the final image having the background color close to white is in favor of identification. Furthermore, the adjustment is executed in process of the scanner rescanning the document so that omits the step of executing adjustment by software.
摘要翻译： 下面描述扫描仪的自动白平衡调整方法。 首先，光源提供白光，使扫描仪扫描文档并获得文档的初始图像。 其次，在初始图像中获得背景颜色的红色，绿色和蓝色色值。 接下来，基于存储在校准表中的色值和校正值来计算因子。 最后，扫描仪根据因素自动调整光源的红，绿，蓝光亮度比，然后重新扫描文档以获得具有处理背景颜色的最终图像。 因此，背景颜色接近于白色的最终图像有利于识别。 此外，在扫描器重新扫描文档的过程中执行调整，以便省略通过软件执行调整的步骤。
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