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How can I sharpen an image in OpenCV?
...s cv
import numpy as np
def unsharp_mask(image, kernel_size=(5, 5), sigma=1.0, amount=1.0, threshold=0):
"""Return a sharpened version of the image, using an unsharp mask."""
blurred = cv.GaussianBlur(image, kernel_size, sigma)
sharpened = float(amount + 1) * image - float(amount) * blu...
Format a number as 2.5K if a thousand or more, otherwise 900
...
Any idea how we can make 1000 display as 1.0k instead of 1k?
– Brent
Apr 18 '19 at 3:23
1
...
Asynchronous method call in Python?
...ile True:
print(datetime.datetime.now())
if (loop.time() + 1.0) >= end_time:
break
yield from asyncio.sleep(1)
loop = asyncio.get_event_loop()
# Blocking call which returns when the display_date() coroutine is done
loop.run_until_complete(display_date(loop))
...
Are email addresses case sensitive?
...
From RFC 5321, section 2.3.11:
The standard mailbox naming convention is defined to be
"local-part@domain"; contemporary usage permits a much broader set of
applications than simple "user names". Consequently, and due to a
long history ...
How do I adjust the anchor point of a CALayer, when Auto Layout is being used?
... @param anchorPoint new anchorPoint of the view in unit coords (e.g., {0.5,1.0})
@param xConstraint an NSLayoutConstraint whose constant property adjust's view x.center
@param yConstraint an NSLayoutConstraint whose constant property adjust's view y.center
As multiple constraints can contribute...
Postgres: “ERROR: cached plan must not change result type”
...
I got this on PostgreSQL 9.0.4, with Ruby on Rails 3.1-pre5. It seems like this should be handle automatically by ActiveRecord, no?
– docwhat
Aug 7 '11 at 17:49
...
What is the most compatible way to install python modules on a Mac?
.../local/bin/python2.6 # python.org (MacPython) 2.6
$ /usr/local/bin/python3.1 # python.org (MacPython) 3.1
To get the right python by default requires ensuring your shell $PATH is set properly to ensure that the right executable is found first. Another solution is to define shell aliases to th...
Android -Starting Service at Boot Time
...Service(myIntent);
}
}
Your AndroidManifest.xml:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.broadcast.receiver.example"
android:versionCode="1"
android:versionName="1.0">
<appli...
Data Modeling with Kafka? Topics and Partitions
...pics, with two different partitioning schemes.
– François Beausoleil
Aug 7 '15 at 13:46
add ...
OAuth 2.0: Benefits and use cases — why?
...
Background: I've written client and server stacks for OAuth 1.0a and 2.0.
Both OAuth 1.0a & 2.0 support two-legged authentication, where a server is assured of a user's identity, and three-legged authentication, where a server is assured by a content provider of the user's identi...