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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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Using a ListAdapter to fill a LinearLayout inside a ScrollView layout
... Your adapter.
final int adapterCount = adapter.getCount();
for (int i = 0; i < adapterCount; i++) {
View item = adapter.getView(i, null, null);
layout.addView(item);
}
EDIT: I rejected this approach when I needed to display about 200 non-trivial list items, it is very slow - Nexus 4 need...
Rails - controller action name to string
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answered Nov 25 '10 at 6:11
JellicleCatJellicleCat
21.3k1919 gold badges9494 silver badges136136 bronze badges
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How do I find a list of Homebrew's installable packages?
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edited Feb 14 '19 at 21:07
Devin G Rhode
17.3k66 gold badges3737 silver badges4848 bronze badges
answe...
Responsive website zoomed out to full width on mobile
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edited Jun 30 '17 at 16:51
Cœur
29.9k1515 gold badges166166 silver badges214214 bronze badges
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Handler is abstract ,cannot be instantiated
...rying to be TOO clever at importing/autocompleting is one i.e. is quicker 90% of the time, is 5 x slower 10% of the time. Thanks again
– Joel Balmer
Mar 12 '14 at 22:20
1
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jQuery form serialize - empty string
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edited Apr 7 '10 at 9:58
answered Apr 7 '10 at 9:51
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What's wrong with this 1988 C code?
...tions of IN and OUT:
#define IN 1; /* inside a word */
#define OUT 0; /* outside a word */
Notice how you have a trailing semicolon in each of these. When the preprocessor expands them, your code will look roughly like:
if (c == ' ' || c == '\n' || c == '\t')
state = 0;; /...
How do you do natural logs (e.g. “ln()”) with numpy in Python?
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np.log is ln, whereas np.log10 is your standard base 10 log.
Relevant documentation:
http://docs.scipy.org/doc/numpy/reference/generated/numpy.log.html
http://docs.scipy.org/doc/numpy/reference/generated/numpy.log10.html
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Why does “while(true)” without “Thread.sleep” cause 100% CPU usage on Linux but not on Windows?
...Let's say you have 4 cores:
With IRIX mode on, 1 fully utilized core is 100% and 4 cores are 400%.
With IRIX mode off, 1 fully utilized core is 25% and 4 cores are 100%.
This means that by default, top on Linux will show an infinite loop as ~100% and Windows will show it as ~25%, and it means ...