convert

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am trying to use OpenCV 2.3.1 to convert a 12-bit Bayer image to an 8-bit RGB image. This seems like it should be fairly straightforward using the cvCvtColor function, but the function throws an exception when I call it with this code: int cvType = CV_MAKETYPE(CV_16U, 1); cv::Mat bayerSource(height, width, cvType, sourceBuffer); cv::Mat rgbDest(height, width, CV_8UC3); cvCvtColor(&bayerSource, &rgbDest, CV_BayerBG2RGB); I thought that I was running past the end of sourceBuffer, since the input data is 12-bit, and I had to pass in a 16-bit

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: how can i convert rows in to columns in oracle 10g( like pivot in oracle 11g),so that i can add multiple 'and' conditions for the primary key. ex: select emp_name from emp where empid = 1 and emp_age = 21; where empid = 12 and emp_age = 23; without using 'in' ,i have to get records which satisfies all the above condtions(Like 'and ' operation). 回答1: This blog entry on pivot queries may give you some ideas. 回答2: There is no easy way to do this in sql. If you know how many columns you need read this: http://thinkoracle.blogspot.com

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have tried this query to get required experience from linkedin data. Dataset<Row> filteredData = spark .sql("select full_name ,experience from (select *, explode(experience['title']) exp from tempTable )" + " a where lower(exp) like '%developer%'"); But I got this error: and finally I tried but I got more rows with the same name . Dataset<Row> filteredData = spark .sql("select full_name ,explode(experience) from (select *, explode(experience['title']) exp from tempTable )" + " a where lower(exp) like '%developer%'"); Please give me hint,

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Basically I am trying facial recognition using OpenCV Android. I need to convert a Mat image that is received during face detection via inputFrame.gray(); in CvCameraViewFrame into a blob that is a byte[] to save into an SQLite database. Then, during recognition, convert this byte[] back to a Mat file that can be used in .cpp files in the jni folder, as recognition code is native. 回答1: [edit] it turned out to be quite easy with androids onboard methods: import org.opencv.core.Mat; import android.content.Context; import android.content

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: What is the most idiomatic way to do the following? def xstr ( s ): if s is None : return '' else : return s s = xstr ( a ) + xstr ( b ) update: I'm incorporating Tryptich's suggestion to use str(s), which makes this routine work for other types besides strings. I'm awfully impressed by Vinay Sajip's lambda suggestion, but I want to keep my code relatively simple. def xstr ( s ): if s is None : return '' else : return str ( s ) 回答1: If you actually want your function to behave like the str() built-in, but return an empty string

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have a column [Cash] nvarchar(50) that has data that will later be converted to decimal(9,3) during an import process,some of the data is consistent with normal looking numeric values such as 134.630,-80.662 and 324.372. Occasionally I have data with multiple dots for the numeric values such as 1.324.372 and -2.134.630. Is there a way of removing this extra dot. 回答1: declare @yourtable table(cash varchar(20)) insert @yourtable values('1.324.372') insert @yourtable values('-2.134.630') insert @yourtable values('1.234.567.89') Old Code:

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I'm creating an app on Google App Engine using Java, which accepts a standard XML file and maps it to an object- which is then saved to the datastore. I'm expecting quite a bit of entries/day (about 500+).. What is the optimal way of serializing xml, considering the cost in CPU and Data quotas of GAE/j? 回答1: If your view of optimal is the simplest way of serialising/deserialising (and in this instance I suggest it is), then take a look at XStream , which can convert POJOs to/from XML without any annotations/interface requirements

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: Im writing some MIPS code to take a string of ASCII digits and convert the string into an integer. The string is entered by the user and can be at most 10 digits in length. My code works fine and uses the obvious method of performing looped addition after multiplying the Least Significant number in the string by a power of ten determined by the index of the array, starting from the last digit entered (10^0) to the first digit entered (10^n, n=number of digits in the array). I was wondering if there was an alternate method that

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am looking for a easy way to add a line of code to a plugin of mine, to convert a couple of pixel values into em values, because the layout of my project needs to be in ems. Is there an easy way to do this, because I don't want to add a third-party plugin to the site. Won't post the code here, as it has nothing to do with the plugin it self. Thanks. Example: 13px -> ??em 回答1: I think your question is very important. Since the classes of display resolutions are rapidly increasing, using em positioning to support wide range of screen

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I was working on project that had problem when encoding UFT-8 text into JSON Format and i also tried Zend_JSON Library , in both cases the JSON output was crazy : {"wine":"\u0639\u0631\u0628\u064a ","\u0639\u0631\u0628\u064a":4,"lemon":22} i did try it into PHP5.2.6 and PHP5.3 but same result .. How do I convert UTF-8 text into JSON? Any suggestions? 回答1: That's a unicode notation understood by javascript/ecmascript. Try <html> <head> <title>unicode test</title> <script type="text/javascript"> function foo() { var outDiv = document