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How to fast change image brightness with python + OpenCV?

I have a sequence of images. I need to average brightness of these images. First example (very slow): img = ... to change only V (brightness)) See Question&Answers more detail:os...

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I Have integrated keycloak with an angular app. Basically, both frontend and backend are on different server.Backend app is ... destroy() { } } See Question&Answers more detail:os...

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c - Sharing memory between processes through the use of mmap()

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java - Use abstract super class as parameter for Spring data repository

I know how to implement spring data repositories, Create an interface like this : public interface CountryRepository ... and other properties? See Question&Answers more detail:os...

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python - Append item to MongoDB document array in PyMongo without re-insertion

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ios - Adding Convenience Initializers in Swift Subclass

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html - How to force fully download txt file on link?

I have one simple text file and I want to download that file on any anchor tag link. But when I click on that link ... here</a> </body> </html> See Question&Answers more detail:os...

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java - How LongAdder performs better than AtomicLong

I see how Java's AtomicInteger works internally with CAS (Compare And Swap) operation. Basically when ... understand how LongAdder works? See Question&Answers more detail:os...

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c++ - Is stl vector concurrent read thread-safe?

I am working on a application where huge number of threads are expected to iterate over set of string values and try ... gcc version is 4.5.x See Question&Answers more detail:os...

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How to deploy a Java Web Application (.war) on tomcat?

I have a .war file of a Java Web Application. Now I want to upload it to my ftp server so that I ... Apache access Tomcat with jk connector. See Question&Answers more detail:os...

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c - Equivalents to MSVC's _countof in other compilers?

Are there any builtin equivalents to _countof provided by other compilers, in particular GCC and Clang? Are there any non-macro forms? See Question&Answers more detail:os...

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YouTube API Android auto start

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swift - UIBezierPath: How to add a border around a view with rounded corners?

I am using UIBezierPath to have my imageview have round corners but I also want to add a border to the ... along with my current code? See Question&Answers more detail:os...

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visual studio - Structuring projects & dependencies of large winforms applications in C#

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C# array within a struct

Want to do this: (EDIT: bad sample code, ignore and skip below) struct RECORD { char[] name = new char[ ... header; // for field recognition } See Question&Answers more detail:os...

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Make a Ruby program a daemon?

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floating point - Is the most significant decimal digits precision that can be converted to binary and back to decimal without loss of significance 6 or 7.225?

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c# - Why is this faster on 64 bit than 32 bit?

I've been doing some performance testing, mainly so I can understand the difference between iterators and simple for ... and easier to read! See Question&Answers more detail:os...

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msbuild - AfterPublish target not working

World's simplest task (see below) is not being executed after I publish my web application project. Any idea why? < ... :B.txt" /> </Target> See Question&Answers more detail:os...

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How does one restore default case to a variable in VBA (Excel 2010)?

At some point I accidentally named a variable range (all lower-case) and since then the Visual Basic for ... I type Range is irritating. See Question&Answers more detail:os...

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Using MongoDB $pull to delete documents within an Array

I have a collection in MongoDB, which is like following: { "_id" : "5327010328645530500", "members" : [ ... intuition will be really helpful. See Question&Answers more detail:os...

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python insert vs append

I have written basic python snippets to first insert values in a list and then reverse them. I found that ... have any explanation for this? See Question&Answers more detail:os...

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Greater Than Condition in Linq Join

I had tried to join two table conditionally but it is giving me syntax error. I tried to find solution in the ... >= p.PositionId select p; See Question&Answers more detail:os...

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python - int object is not iterable?

inp = int(input("Enter a number:")) for i in inp: n = n + i; print (n) ... throws an error: 'int' object ... + 0 = 2. How do I do that? Thanks See Question&Answers more detail:os...

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php - Can I use file_get_contents() to compare two files?

I want to synchronize two directories. And I use file_get_contents($source) === file_get_contents($dest) to compare two ... problem to do this? See Question&Answers more detail:os...

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