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How can I quantify difference between two images?
... img2 = to_grayscale(imread(file2).astype(float))
# compare
n_m, n_0 = compare_images(img1, img2)
print "Manhattan norm:", n_m, "/ per pixel:", n_m/img1.size
print "Zero norm:", n_0, "/ per pixel:", n_0*1.0/img1.size
How to compare. img1 and img2 are 2D SciPy arrays here:
def comp...
How to justify a single flexbox item (override justify-content)
...-right: auto to align the child to the left.
.container {
height: 100px;
border: solid 10px skyblue;
display: flex;
justify-content: flex-end;
}
.block {
width: 50px;
background: tomato;
}
.justify-start {
margin-right: auto;
}
<div class="container">
<...
What is Full Text Search vs LIKE
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170
In general, there is a tradeoff between "precision" and "recall". High precision means that fewe...
Oracle: If Table Exists
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+500
The best and most efficient way is to catch the "table not found" exception: this avoids the overhead of checking if the table exists...
How do I make a reference to a figure in markdown using pandoc?
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answered Apr 20 '12 at 21:42
N.N.N.N.
98266 silver badges33 bronze badges
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javac : command not found
...he OpenJDK Development Environment. You can install java-devel or java-1.6.0-openjdk-devel, which both include javac.
By the way: you can find out which package provides javac with a yum search, e.g.
su -c 'yum provides javac'
on more recent releases of CentOS e.g. 6 the command changes to
su -...
In SQL Server, when should you use GO and when should you use semi-colon ;?
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answered Sep 13 '10 at 14:06
cjkcjk
42.4k88 gold badges7171 silver badges108108 bronze badges
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Is there a way to change the spacing between legend items in ggplot2?
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ggplot2 v3.0.0 released in July 2018 has working options to modify legend.spacing.x, legend.spacing.y and legend.text.
Example: Increase horizontal spacing between legend keys
library(ggplot2)
ggplot(mtcars, aes(factor(cyl), fill ...
Proper SCSS Asset Structure in Rails
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+100
The problem with CSS is, you do not want to automatically add all files.
The order of which your sheets are loaded and processed by t...