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How to read the RGB value of a given pixel in Python?

... be many different formats. pix = im.load() print im.size # Get the width and hight of the image for iterating over print pix[x,y] # Get the RGBA Value of the a pixel of an image pix[x,y] = value # Set the RGBA Value of the image (tuple) im.save('alive_parrot.png') # Save the modified pixels as ...
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Script parameters in Bash

...arguments that you provide to a bashscript will appear in the variables $1 and $2 and $3 where the number refers to the argument. $0 is the command itself. The arguments are seperated by spaces, so if you would provide the -from and -to in the command, they will end up in these variables too, so fo...
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Best JavaScript compressor [closed]

...t need any Node.js internals). It's a lot faster than both YUI Compressor and Google Closure, it compresses better than YUI on all scripts I tested it on, and it's safer than Closure (knows to deal with "eval" or "with"). Other than whitespace removal, UglifyJS also does the following: changes l...
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Invert “if” statement to reduce nesting

... Probably just a matter of taste: I suggest changing the 2nd and 3rd "if" to "else if" to increase readability even more. If one overlooks the "return" statement it would still be clear that the following case is only checked if the previous one failed, i.e. that the order of the check...
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Should I use int or Int32

In C#, int and Int32 are the same thing, but I've read a number of times that int is preferred over Int32 with no reason given. Is there a reason, and should I care? ...
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How to unload a package without restarting R

...ating, but conceivably this could be used in a program to use one function and then another--although namespace referencing is probably a better idea for that use). ...
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pandas read_csv and filter columns with usecols

I have a csv file which isn't coming in correctly with pandas.read_csv when I filter the columns with usecols and use multiple indexes. ...
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Windows git “warning: LF will be replaced by CRLF”, is that warning tail backward?

...al core.autocrlf false That way, you avoid any automatic transformation, and can still specify them through a .gitattributes file and core.eol directives. windows git "LF will be replaced by CRLF" Is this warning tail backward? No: you are on Windows, and the git config help page does me...
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How to extract a git subdirectory and make a submodule out of it?

I started a project some months ago and stored everything within a main directory. In my main directory "Project" there are several subdirectories containing different things: Project/paper contains a document written in LaTeX Project/sourcecode/RailsApp contains my rails app. ...
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Most useful NLog configurations [closed]

...lassLogger(). This gives you a high degree of granularity in your loggers and gives you great flexibility in the configuration of the loggers (control globally, by namespace, by specific logger name, etc). Use non-classname-based loggers where appropriate. Maybe you have one function for which yo...