offset

算子dyn_threshold解析

会有一股神秘感。 提交于 2019-12-14 22:38:53
算子结构 首先看dyn_threshold 算子参数 dyn_threshold(OrigImage, ThresholdImage : RegionDynThresh : Offset, LightDark ) 参数分析: OrigImage:需要进行阈值分割的原始图像 ThresholdImage: 通过一定图像预处理得到的阈值图像(这个预处理通常是对原图应用mean_image/gauss_image/binomial_filter 处理后的图像) RegionDynThresh: 对原图进行阈值分割后输出图像 Offset: 是一个阈值调节值,在做对比时,需要和ThresholdImage上某一点像素值同时作用。 LightDark:是一个关键选择,’dark’, ‘light’, ‘equal’, ‘not_equal’一共有4种选择,明、暗、同、不同 关键点分析 根据Halcon帮助文档种给出的 dyn_threshold的分割阈值的计算方式 g_o=g_[OrigImage] g_t=g_[ThresholdImage] 当选择light模式 阈值计算公式: for LightDark = ‘light’ is: g_o >= g_t + Offset 即为原图中大于等于g_t + Offset点的像素值被选中。 当选择dark 模式 For LightDark =

SqlServer 资源占用情况[简易]

随声附和 提交于 2019-12-14 15:38:11
1、查看CPU占用量最高的会话及SQL语句 select spid,cmd,cpu,physical_io,memusage, (select top 1 [text] from ::fn_get_sql(sql_handle)) sql_text from master..sysprocesses order by cpu desc,physical_io desc 2、查看缓存重用次数少,内存占用大的SQL语句  SELECT TOP 100 usecounts, objtype, p.size_in_bytes,[sql].[text] FROM sys.dm_exec_cached_plans p OUTER APPLY sys.dm_exec_sql_text (p.plan_handle) sql ORDER BY usecounts,p.size_in_bytes desc 3、执行最慢的SQL语句 SELECT (total_elapsed_time / execution_count)/1000 N'平均时间ms' ,total_elapsed_time/1000 N'总花费时间ms' ,total_worker_time/1000 N'所用的CPU总时间ms' ,total_physical_reads N'物理读取总次数' ,total_logical

Are address offsets resolved during compile time in C/C++? [closed]

人盡茶涼 提交于 2019-12-14 03:33:49
问题 This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center. Closed 7 years ago . void *p = malloc(1000); *((int*)p) = 666; *((int*)p+sizeof(int)) = 777; int i; for (i = 0; i<10; ++i) printf("%d ", *((int*)p+sizeof(int)*i)); Is the

canvas和base64

北城以北 提交于 2019-12-14 01:26:55
base64是二进制数据的一个编码格式,就像utf8一样的东西 他跟json一样,也是前后端交互能够相互识别的数据,他更多的是用来传递文件数据 在js里生成base64的API有两个,一个是 FileReader ,一个是画布 canvas FileReader <input type="file" onchange="change(this.files[0])"> function change(file){ var fr = new FileReader() fr.onload = function(e) { // 这个就是base64 console.log( e.target.result ); } // 这个方法传参是一个Blob类型的格式 fr.readAsDataURL(file) } canvas 我们使用画布是为了获取画布上的内容 画布的输入是图片,然后对这个图片进行剪切,打水印什么的 画布上的内容的输出格式是base64 // 这个image就是输入 // 除了new,也可以直接取页面上的标签 var image = new Image(); image.onload = function () { var w = image.width; var h = image.height; var canvas = document.createElement(

What will be the output of this? Please explain it also [closed]

筅森魡賤 提交于 2019-12-13 23:25:29
问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 5 years ago . #include<stdio.h> int main(){ int a; printf("%u\n ",&a); printf("%p\n ",a); printf("%p\n ",&a); printf("%fp\n ",&a); return 0; } I have tried this code but I am not able to understand the output 4193177020 (nil) 0x7ffff9eecdbc 0.000000p What is semgmented memory address in this and what part is offset? 回答1:

How to make looped function calls for pagination?

泄露秘密 提交于 2019-12-13 17:12:25
问题 I am attempting to use the Airtable API to retrieve records from my data there - specifically, a list of URLs I have in column cells. I wrote a function, get_airtable_records , to do the API call via curl and it works - returning results as a Json object. Specifically, I am pushing the URLs to an array, $article_urls . The only problem is, Airtable limits the return of results to "pages" of a maximum 100 records, and my data contains more than that. The API accepts parameters maxRecords and

Offset Top Not Working In IOS

笑着哭i 提交于 2019-12-13 12:54:15
问题 Here is the complete code http://jsfiddle.net/vinex08/uhm26em1/ jQuery(function ($) { var distance = $('.c').offset().top, $window = $(window); $window.scroll(function () { if ($window.scrollTop() >= distance) { $(".b").css({ position: 'fixed', top: '0' }); } else { $(".b").css({ position: 'inherit', top: '10' }); } }); });` It's working on Chrome and Firefox but when i checked it via iPad AIR and iPhone, the effect executes even before the 'class c' hits the top. 回答1: I hope this will help:

Get offset neighbors of an array

不羁的心 提交于 2019-12-13 12:19:22
问题 TL;DR How can I slice an array to get a (user-defined) number of entries before and after a given offset (also user-defined) without go out of range. E.g: $collection = [ 'A', 'B', 'C', 'D', 'E' ]; If defined a limit of 2 and a starting offset of index 3 (D), the routine should return B , C , D , E : Two before D and just one after D , otherwise it would go out of range. If defined a limit of 3 and a starting offset of index 0 (A), the routine should return A , B , C , D , three after A and

Excel Match, Offset, Index for multiple columns

浪子不回头ぞ 提交于 2019-12-13 08:06:13
问题 I want to find the value of corresponding clients PO # Invoice # Quote # etc.. & client list is mentioned in different multiple columns. Formula used : =INDEX(D16,D17,2,MATCH('Client PO & Invoice Details'!A1:ACZ25,'Client PO & Invoice Details'!A1:ACZ1,0)) LOOKING FOR REQUIRED LOOKUP FUNCTIONS WITH MATCH OFFSET INDEX 回答1: The staging of your data is really inefficient. If you made a client number column and expanded the data vertically rather than horizontally, you could really save yourself a

jquery autoscroll offset from top

泄露秘密 提交于 2019-12-13 04:38:45
问题 I wanna set "autoscroll to class" jquery script in that way so it shows targeted class couple of pixels in offset from top of the window. Is something like that possible with this plugin? jsfiddle: http://jsfiddle.net/dzorz/cybMJ/ html: <div id="nav-dock"> <a id="prev" href="#">↑ Prev</a> <a id="next" href="#">↓ Next</a> </div> <br><br><br><br><br><br><br><br><br><br> <br><br><br><br><br><br><br><br><br><br> <div class=text> <b>First</b> Lorem ipsum dolor sit amet, consectetur adipiscing elit