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How can I quantify difference between two images?

... General idea Option 1: Load both images as arrays (scipy.misc.imread) and calculate an element-wise (pixel-by-pixel) difference. Calculate the norm of the difference. Option 2: Load both images. Calculate some feature vector for each of them (like a histogram). Calculate distance between featu...
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How to join two sets in one line without using “|”

Assume that S and T are assigned sets. Without using the join operator | , how can I find the union of the two sets? This, for example, finds the intersection: ...
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Resetting generator object in Python

...ls.tee) - this uses lazy load strategy, so items to list copied only on demand – Dewfy Aug 13 '09 at 13:23 11 ...
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How to get the CPU Usage in C#?

...e properties of processes, but I only want the CPU usage of the processes, and the total CPU like you get in the TaskManager. ...
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javac not working in windows command prompt

I'm trying to use javac with the windows command prompt, but it's not working. 17 Answers ...
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Backbone.js get and set nested object attribute

I have a simple question about Backbone.js' get and set functions. 9 Answers 9 ...
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ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.al

...ch was causing all sorts of problems. I was inadvertently doing a bitwise AND instead of a logical AND . 6 Answers ...
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Is there a way to pass optional parameters to a function?

...a way in Python to pass optional parameters to a function while calling it and in the function definition have some code based on "only if the optional parameter is passed" ...
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Dealing with float precision in Javascript [duplicate]

... I want to group them by rounding them down to the nearest multiple of x and convert the result to a string. 5 Answers ...
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Gradle does not find tools.jar

... I had this problem when I was trying to run commands through CLI. It was a problem with system looking at the JRE folder i.e. D:\Program Files\Java\jre8\bin. If we look in there, there is no Tools.jar, hence the error. You need to find where the JDK is, in my case: D:...