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Checking images for similarity with OpenCV
...he OpenCV Q&A site I am talking about the difference between feature descriptors, which are great when comparing whole images and texture descriptors, which are used to identify objects like human faces or cars in an image.
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Can I 'git commit' a file and ignore its content changes?
...pied into the ignored name and modified. The repository can even include a script to treat the sample file as a template, modifying and copying it automatically.
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Local variables in nested functions
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I banged my head on this wall for 3 hours today on a script for work. Your last point is very important, and is the main reason why I encountered this problem. I have callbacks with closures galore throughout my code, but trying the same technique in a loop is what got me.
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When should Flask.g be used?
...ss to any request object (e.g. when running batch DB operations in a shell script). If you try and extend the application context to encompass more than one request context, you're asking for trouble. So, rather than my test above, you should instead write code like this with Flask's contexts:
from...
What are the best practices for JavaScript error handling?
I'm looking to start making my JavaScript a bit more error proof, and I'm finding plenty of documentation on using try , catch , finally , and throw , but I'm not finding a ton of advice from experts on when and where to throw errors.
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How do I check if a string is valid JSON in Python?
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Example Python script returns a boolean if a string is valid json:
import json
def is_json(myjson):
try:
json_object = json.loads(myjson)
except ValueError as e:
return False
return True
Which prints:
print is_json("{}") ...
Why use the SQL Server 2008 geography data type?
...method. The geography type is stored as a VARBINARY(MAX). Try running this script:
CREATE TABLE dbo.Geo
(
geo geography
)
GO
CREATE TABLE dbo.LatLon
(
lat decimal(9, 6)
, lon decimal(9, 6)
)
GO
INSERT dbo.Geo
SELECT geography::Point(36.204824, 138.252924, 4326) UNION ALL
SELECT geog...
How do I verify/check/test/validate my SSH passphrase?
...olsky: No, it requires a running authentication agent. Modify your startup scripts or options to bring one up.
– Ignacio Vazquez-Abrams
Feb 12 '14 at 23:00
22
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How to hide 'Back' button on navigation bar on iPhone?
...views in my app. But some of the views shouldn't have 'Back' (the previous title) button. Any ideas about how to hide the back button?
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Cross-browser multi-line text overflow with ellipsis appended within a fixed width and height
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I had a bad experience of infinite loop with this script because the text contained only one very long word, so the replace regexp never matched. To avoid this, add this code just after the while line: if(!$p.text().match(/\W*\s(\S)*$/)) break;
– KrisWe...