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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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How to sort a dataFrame in python pandas by two or more columns?
Suppose I have a dataframe with columns a , b and c , I want to sort the dataframe by column b in ascending order, and by column c in descending order, how do I do this?
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Emulating a do-while loop in Bash
What is the best way to emulate a do-while loop in Bash?
4 Answers
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Python list iterator behavior and next(iterator)
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6 Answers
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How best to include other scripts?
The way you would normally include a script is with "source"
21 Answers
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Reading an Excel file in python using pandas
I am trying to read an excel file this way :
8 Answers
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Are there any O(1/n) algorithms?
Are there any O(1/n) algorithms?
32 Answers
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Is there anyway to exclude artifacts inherited from a parent POM?
Artifacts from dependencies can be excluded by declaring an <exclusions> element inside a <dependency> But in this case it's needed to exclude an artifact inherited from a parent project. An excerpt of the POM under discussion follows:
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What does glLoadIdentity() do in OpenGL?
I'm new to OpenGL and I'm a little overwhelmed with all of the random functions that I have in my code. They work and I know when to use them, but I don't know why I need them or what they actually do.
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How do I upload a file with metadata using a REST web service?
I have a REST web service that currently exposes this URL:
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