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How to base64 encode image in linux bash / shell
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Single line result:
base64 -w 0 DSC_0251.JPG
For HTML:
echo "data:image/jpeg;base64,$(base64 -w 0 DSC_0251.JPG)"
As file:
base64 -w 0 DSC_0251.JPG > DSC_0251.JPG.base64
In variable:
IMAGE_BASE64="$(base64 -w 0 DSC_0251.JPG)"
In variable for HTML:
IMAGE_BASE64="...
Simple and fast method to compare images for similarity
...uses histogram matching): http://dasl.mem.drexel.edu/~noahKuntz/openCVTut6.html. The salient point/area detectors are also available - see OpenCV Feature Detection.
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What is the !! (not not) operator in JavaScript?
...ant to write a function that returns true if a user's browser supports the HTML5 <audio> element, but we don't want the function to throw an error if <audio> is undefined; and we don't want to use try ... catch to handle any possible errors (because they're gross); and also we don't want...
What's a standard way to do a no-op in python?
...rsus an arbitrary statement; q.v. docs.python.org/3/reference/simple_stmts.html and docs.python.org/3/reference/compound_stmts.html) – like e.g. as a sub-expression to an existing code idiom like a comprehension, or a lambda, or (god forbid) a string to be passed into eval(…) (which q.v. docs.py...
javax.faces.application.ViewExpiredException: View could not be restored
...sion is destroyed. What should I do to redirect user to for example index.xhtml or login.xhtml and save him from seeing that error page/message?
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What does it mean when a CSS rule is grayed out in Chrome's element inspector?
...cted element:
http://code.google.com/chrome/devtools/docs/elements-styles.html#computed_style
The pane contains only properties from rules that are directly applicable to the selected element. In order to additionally display inherited properties, enable the Show inherited checkbox. Such proper...
How to invert a grep expression
The following grep expression successfully lists all the .exe and .html files in the current directory and sub directories.
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Programmatically stop execution of python script? [duplicate]
...e simple exit() works without importing: docs.python.org/library/constants.html
– George
Feb 12 '09 at 22:38
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How do I remove the horizontal scrollbar in a div?
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Add this code to your CSS. It will disable the horizontal scrollbar.
html, body {
max-width: 100%;
overflow-x: hidden;
}
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How to correctly sort a string with a number inside? [duplicate]
...orts in human order
http://nedbatchelder.com/blog/200712/human_sorting.html
(See Toothy's implementation in the comments)
'''
return [ atoi(c) for c in re.split(r'(\d+)', text) ]
alist=[
"something1",
"something12",
"something17",
"something2",
"something25",
...