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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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Search All Fields In All Tables For A Specific Value (Oracle)

...an you not start with whatever client application is displaying this value and try to figure out what query it is using to obtain it? Anyway, diciu's answer gives one method of generating SQL queries to check every column of every table for the value. You can also do similar stuff entirely in one ...
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How did Google manage to do this? Slide ActionBar in Android application

...e hierachyviewer! (Located in the tools directory) There's the DecorView, and a LinearLayout as a child. This LinearLayout contains both the ActionBar and the other content. So, you can simply apply some FrameLayout.LayoutParams to this LinearLayout and get some space on the left side this way. The...
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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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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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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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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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java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare();

I have an Android app running a thread. I want a Toast message to show with a message. 7 Answers ...