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Algorithm to detect corners of paper sheet in photo
What is the best way to detect the corners of an invoice/receipt/sheet-of-paper in a photo? This is to be used for subsequent perspective correction, before OCR.
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When to use generic methods and when to use wild-card?
I am reading about generic methods from OracleDocGenericMethod . I am pretty confused about the comparison when it says when to use wild-card and when to use generic methods.
Quoting from the document.
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How to cherry pick only changes for only one file, not the whole commit
I need to apply changes introduced in one branch to another branch.
I can use cherry pick to do that. However, in my case I want to apply changes which are relevant only for one file, I don't need to cherry pick whole commit.
How to do that?
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What is the difference between Ruby 1.8 and Ruby 1.9
I'm not clear on the differences between the "current" version of Ruby (1.8) and the "new" version (1.9). Is there an "easy" or a "simple" explanation of the differences and why it is so different?
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How to install a specific JDK on Mac OS X?
I want to install a specific JDK (the latest for example). For this, I went to the JDK download homepage: http://java.sun.com/javase/downloads/index.jsp .
I looked for a Mac version, but I'm a bit surprised to only see downloadable versions for Linux, Windows and Solaris ...
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C++ display stack trace on exception
I want to have a way to report the stack trace to the user if an exception is thrown. What is the best way to do this? Does it take huge amounts of extra code?
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Co-variant array conversion from x to y may cause run-time exception
I have a private readonly list of LinkLabel s ( IList<LinkLabel> ). I later add LinkLabel s to this list and add those labels to a FlowLayoutPanel like follows:
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Add a reference column migration in Rails 4
A user has many uploads. I want to add a column to the uploads table that references the user . What should the migration look like?
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What does [:] mean?
I'm analyzing some Python code and I don't know what
6 Answers
6
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ng-repeat finish event
I want to call some jQuery function targeting div with table. That table is populated with ng-repeat .
15 Answers
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