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How can I quantify difference between two images?
...er pixel:", n_m/img1.size
print "Zero norm:", n_0, "/ per pixel:", n_0*1.0/img1.size
How to compare. img1 and img2 are 2D SciPy arrays here:
def compare_images(img1, img2):
# normalize to compensate for exposure difference, this may be unnecessary
# consider disabling it
img1 = no...
新浪是如何分析处理32亿条实时日志的？ - 更多技术 - 清泛网 - 专注C/C++及内核技术
...闭swap，调整max open files等；App Level的优化如Java运行环境版本的选择，ES_HEAP_SIZE的设置，修改bulk index的queue size等，另外还设置了默认的index template，目的是更改默认的shard，replica数并将string改为not_analyzed，开启doc_values以应对elasti...
When should I use C++14 automatic return type deduction?
... we could probably work it out but we don't need to say it". When we write 1.0 + 27U we're asserting the latter, when we write (double)1.0 + (double)27U we're asserting the former. Simplicity of the function, degree of duplication, avoiding decltype might all contribute to that but none is going to ...
Java HTTPS client certificate authentication
...
Maven pom.xml:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4....
滚动布局管理器拓展 - ScrollArrangementHandler · App Inventor 2 中文网
...建 Apps 首页 教育 中文教育版 各版本对比 App上架指南 入门必读 IoT专题 AI2拓展 Aia Store 关于 关于我们 发布日志 服务条款 ...
How much does it cost to develop an iPhone application? [closed]
...being good.)
Twitterrific has had 4 major releases beginning with the iOS 1.0 (Jailbreak.) That's a lot of code, much of which is in the bit bucket (we refactor a lot with each major release.)
One thing that would be interesting to look at is the amount of time that we had to work on the iPad vers...
Should I compile release builds with debug info as “full” or “pdb-only”?
...om the linked John Robbins article: The real reason: history. Back in .NET 1.0 there were differences, but in .NET 2.0 there isn't. It looks like .NET 4.0 will follow the same pattern. After double-checking with the CLR Debugging Team, there is no difference at all.
– bentaylor...
FragmentPagerAdapter Exists Only In Android.Support.V4.App (and not Android.App)
...
use compile 'com.android.support:support-v13:21.0.+' for gradle build
– cV2
Feb 13 '15 at 22:40
...
Build an ASCII chart of the most commonly used words in a given text [closed]
... good way to save is by changing 0.000 to just 0, then using -C instead of 1.0/C. And making FLOAT into REAL will save a stroke too. The biggest thing, though, is that it looks like you have lots of AS instances that should be optional.
– Gabe
Jul 4 '10 at 15:1...
Generating an Excel file in ASP.NET [closed]
...easiest way to explain how it works is with an example:
<?xml version="1.0"?>
<?mso-application progid="Excel.Sheet"?>
<Workbook xmlns="urn:schemas-microsoft-com:office:spreadsheet"
xmlns:o="urn:schemas-microsoft-com:office:office"
xmlns:x="urn:schemas-microsoft-com:...