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How to resize an image with OpenCV2.0 and Python2.6
...ll resize the image to have 100 cols (width) and 50 rows (height):
resized_image = cv2.resize(image, (100, 50))
Another option is to use scipy module, by using:
small = scipy.misc.imresize(image, 0.5)
There are obviously more options you can read in the documentation of those functions (cv2.r...
Adding 'serial' to existing column in Postgres
... b text);
INSERT INTO foo (a, b) SELECT i, 'foo ' || i::text FROM generate_series(1, 5) i;
INSERT INTO bar (b) SELECT 'bar ' || i::text FROM generate_series(1, 5) i;
-- blocks of commands to turn foo into bar
CREATE SEQUENCE foo_a_seq;
ALTER TABLE foo ALTER COLUMN a SET DEFAULT nextval('foo_a_seq'...
How do I encode and decode a base64 string?
....GetBytes(text)).TrimEnd('=').Replace('+', '-')
.Replace('/', '_');
}
public static string Decode(string text)
{
text = text.Replace('_', '/').Replace('-', '+');
switch (text.Length % 4)
{
case 2:
text += "==";
...
Google Authenticator implementation in Python
...m/tadeck/onetimepass).
import hmac, base64, struct, hashlib, time
def get_hotp_token(secret, intervals_no):
key = base64.b32decode(secret, True)
msg = struct.pack(">Q", intervals_no)
h = hmac.new(key, msg, hashlib.sha1).digest()
o = ord(h[19]) & 15
h = (struct.unpack("&g...
What does “WARN Could not determine content-length of response body.” mean and how to I get rid of i
...that @Scott Lowe already said this above.)
– fearless_fool
Dec 26 '11 at 19:33
280
...
What is simplest way to read a file into String? [duplicate]
...:
new String(Files.readAllBytes(Paths.get(filePath)), StandardCharsets.UTF_8);
Where filePath is a String representing the file you want to load.
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How to find keys of a hash?
...
You could use Underscore.js, which is a Javascript utility library.
_.keys({one : 1, two : 2, three : 3});
// => ["one", "two", "three"]
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Ensure that HttpConfiguration.EnsureInitialized()
...elow for the correct way to handle this now.
At the end of the Application_Start method in Global.Asax.cs try adding:-
GlobalConfiguration.Configuration.EnsureInitialized();
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How to convert IPython notebooks to PDF and HTML?
...
Everything was collapsed into one page -__-
– htafoya
May 2 '18 at 22:23
2
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Perform .join on value in array of objects
...ame: "Kevin", age: 24},
{name: "Peter", age: 21}
];
var result = _.pluck(users,'name').join(",")
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