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Algorithm to compare two images

...ctive areas of the image that could represent zoomed portions of the image and various positions and rotations. It starts getting tricky if one of the images are a skewed version of another, these are the sort of limitations you should identify and compromise on. Matlab is an excellent tool for te...
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Python's many ways of string formatting — are the older ones (going to be) deprecated?

... While there are various indications in the docs that .format and f-strings are superior to % strings, there's no surviving plan to ever deprecate the latter. In commit Issue #14123: Explicitly mention that old style % string formatting has caveats but is not going away any time soon.,...
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Difference between method and function in Scala

...cification tell us. Chapter 3 (types) tell us about Function Types (3.2.9) and Method Types (3.3.1). Chapter 4 (basic declarations) speaks of Value Declaration and Definitions (4.1), Variable Declaration and Definitions (4.2) and Functions Declarations and Definitions (4.6). Chapter 6 (expressions) ...
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What's the difference between [ and [[ in Bash? [duplicate]

I looked at bash man page and the [[ says it uses Conditional Expressions. Then I looked at Conditional Expressions section and it lists the same operators as test (and [ ). ...
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Is modern C++ becoming more prevalent? [closed]

...advanced topic, something you could learn about if you really wanted to. And there was certainly no one telling me that destructors could be harnessed to help manage memory. Today, everywhere I look I see RAII and SFINAE and STL and Boost and, well, Modern C++. Even people who are just getting ...
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Using Git with an existing Xcode project

I am trying to figure out how to use git in my project workflow, and I have an existing Xcode project that I want to put into the repository. I think I have the repository set up correctly under organizer, but the Source Control menu is grayed out. Apparently, it's easy to do if you start a new pr...
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How to Sync iPhone Core Data with web server, and then push to other devices? [closed]

... I suggest carefully reading and implementing the sync strategy discussed by Dan Grover at iPhone 2009 conference, available here as a pdf document. This is a viable solution and is not that difficult to implement (Dan implemented this in several of its...
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Is it possible to define more than one function per file in MATLAB, and access them from outside tha

... the same name as the m-file, but for clarity it should. When the function and file name differ, the file name must be used to call the main function. All subsequent functions in the m-file, called local functions (or "subfunctions" in the older terminology), can only be called by the main function...
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How would Git handle a SHA-1 collision on a blob?

This probably never happened in the real-world yet, and may never happen, but let's consider this: say you have a git repository, make a commit, and get very very unlucky: one of the blobs ends up having the same SHA-1 as another that is already in your repository. Question is, how would Git handle ...
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What's the difference between a file descriptor and file pointer?

I want to know the difference between a file descriptor and file pointer. 9 Answers 9 ...