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Python OpenCV2 (cv2) wrapper to get image size?
... width, channels = img.shape
>>> print height, width, channels
600 800 3
In case you were working with binary images, img will have two dimensions, and therefore you must change the code to: height, width = img.shape
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Pythonic way of checking if a condition holds for any element of a list
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any():
if any(t < 0 for t in x):
# do something
Also, if you're going to use "True in ...", make it a generator expression so it doesn't take O(n) memory:
if True in (t < 0 for t in x):
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Android Studio rendering problems
I'm using Android Studio 0.2.3 and when opened an activity layout normally, the preview should appear on the right side, so that I can switch between Text and Design mode, which should again show the preview of the layout.
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Optional query string parameters in ASP.NET Web API
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– Boris Zinchenko
Jul 24 '16 at 12:50
2
Yes, null is considered a constant expression, and theref...
Creating a blurring overlay view
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edited Jul 8 '19 at 10:31
Eric
11.7k1111 gold badges7070 silver badges112112 bronze badges
answered...
Increase number of axis ticks
...continuous. For example:
library(ggplot2)
dat <- data.frame(x = rnorm(100), y = rnorm(100))
ggplot(dat, aes(x,y)) +
geom_point()
Gives you this:
And overriding the scales can give you something like this:
ggplot(dat, aes(x,y)) +
geom_point() +
scale_x_continuous(breaks = round(seq(m...
Enabling error display in PHP via htaccess only
...hanges.php
– silex
May 25 '11 at 17:01
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Class with Object as a parameter
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answered Sep 11 '11 at 0:46
unutbuunutbu
665k138138 gold badges14831483 silver badges14721472 bronze badges
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Python group by
Assume that I have a set of data pair where index 0 is the value and index 1 is the type:
6 Answers
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How to handle more than 10 parameters in shell
I am using bash shell on linux and want to use more than 10 parameters in shell script
2 Answers
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