LBP | Local Binary Patterns for JavaScript | Runtime Evironment library
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Local Binary Patterns for JavaScript
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- Transforms an array of radix to a new array
- run multi - undo transformation
- LP Implementation of LP PP .
- A convolution function
- get image data
- Transforms two complex numbers
- A complex convolution function
- Returns the value of the x - bit integer .
- Generate a random number
- Memory .
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Trending Discussions on LBP
QUESTION
At some point when coding sockets one will face the receive-family of functions (recv
, recvfrom
, recvmsg
).
This function accepts a FLAG argument, in which I see that the MSG_WAITALL
is used in many examples on the web, such as this example on UDP.
Here is a definition of the MSG_WAITALL
flag
MSG_WAITALL (since Linux 2.2)
This flag requests that the operation block until the full request is satisfied. However, the call may still return less data than requested if a signal is caught, an error or disconnect occurs, or the next data to be received is of a different type than that returned. This flag has no effect for datagram sockets.
Hence, my two questions:
- Why would one need to use
MSG_WAITALL
FLAG instead of0
FLAG? (Could someone explain a scenario of a problem for which the use of this would be the solution?) - Why to use it with UDP?
ANSWER
Answered 2022-Apr-05 at 05:36As the quoted man page mentions, MSG_WAITALL
has no effect on UDP sockets, so there's no reason to use it there. Examples that do use it are probably confused and/or the result of several generations of cargo-cult/copy-and-paste programming. :)
For TCP, OTOH, the default behavior of recv()
is to block until at least one byte of data can be copied into the user's buffer from the sockets incoming-data-buffer. The TCP stack will try to provide as many bytes of data as it can, of course, but in a case where the socket's incoming-data-buffer contains fewer bytes of data than the user has passed in to recv()
, the TCP stack will copy as many bytes as it can, and return the byte-count indicating how many bytes it actually provided.
However, some people find would prefer to have their recv()
call keep blocking until all of the bytes in their passed-in array have been filled in, regardless of how long that might take. For those people, the MSG_WAITALL
flag provides a simple way to obtain that behavior. (The flag is not strictly necessary, since the programmer could always emulate that behavior by writing a while()
loop that calls recv()
multiple times as necessary, until all the bytes in the buffer have been populated... but it's provided as a convenience nonetheless)
QUESTION
I need help if there is any expert in XML and kotlin. I would like to know how to convert the below XML access it in kotlin code and then convert it into kotlin array file i.e. like (USD -> $) so the value of USD is the symbol which the unicode of from the XML.
I know in Android there is java utill class but the problem there is there is not all currencies symbols available i.e. for AFN -> there is AFN but in actual it should be -> ؋.
here is XML file:
...ANSWER
Answered 2022-Mar-06 at 18:55val xml = """
Albania Lek
Afghanistan Afghani
Argentina Peso
Aruba Guilder
Australia Dollar
Azerbaijan New Manat
"""
data class Currency(
val code: String,
val name: String,
val symbol: String
)
val currencies = xml.trimIndent()
.substringAfter(">").substringBeforeLast(")|()".toRegex())
.filter { s -> s.isNotBlank() }
Currency(
code = splitted.first(),
name = splitted.last(),
symbol = (splitted.drop(1).dropLast(1).lastOrNull() ?: "")
.split(",")
.filter { s -> s.isNotBlank() }
.map { s -> Integer.parseInt(s.trim(), 16).toChar() }
.joinToString("")
)
}
currencies.forEach { println(it) }
QUESTION
I submitted all of my code below for a better understanding. The code is fine, my question is: How can I perfectly show multiple countries with their country name list? I mean: When I change the country name, then the flag image should be changed automatically, so users see the country name and image. I already put many links in my loadFlag() function in my js file, but this is not working. Please help me, how can i do it with my code? Thanks in advance and love from the top of my heart.
...ANSWER
Answered 2022-Mar-02 at 17:43You're loading country flags from flagcdn.com
in which each png
is named after a two-letter country code that you have in your country_code
value.
You just need to update your loadFlag
function to properly update the img
tag's property values. See the working code snippet below.
QUESTION
I am trying to learn face detection and I got this code from GeeksforGeeks tutorial. However When I run one of the two files, it shows the error AttributeError: module 'cv2' has no attribute 'LBPHFaceRecognizer_create'. I tried uninstalling open cv, installing pip install opencv-contrib-python as well as reinstalling open cv and running it. I am currently running open cv2 4.5.5. The tutorial advised to remove the '.face' from cv2.face.LBPHFaceRecognizer_create()
for running cv2, however when I run it with .face, it displays module 'cv2' has no attribute 'face'. Please, someone, help me with this
ANSWER
Answered 2022-Mar-01 at 22:18I think that you may need to explicitly state "cv2.face" not just "face..."
QUESTION
Here's how I parse the xml response from this url
...ANSWER
Answered 2022-Feb-23 at 15:19Unfortunately, you have to deal with the namespace in the file. So try it this way:
QUESTION
I'm trying to make a list view but there is a space between children I didn't know from where it comes.
I colored the containers to see where is this space and I found it in the first container where I put inside the list view builder. but no padding and still the space.
i want the card to be fitted in the container.
any one can help!
...ANSWER
Answered 2022-Jan-03 at 11:35I have tried from dummy model. Hope it is you are expecting. Try as follows:
QUESTION
I run a bunch of alt/bot accounts on my server and I'm trying to make a command that gets all the (online)players IP addresses and if it matches mine, then it adds them to a player list to print to whoever executed the command. Here's what I have so far.
...ANSWER
Answered 2021-Nov-29 at 19:37You just have to check player IP between you and others. Values between Adress/Host address change a lot, specially between spigot/bungee.
So, I suggest you to use code like this one :
QUESTION
this is json output:
{"query":{"apikey":"...","base_currency":"USD","timestamp":1635972203},"data":{"JPY":113.99127,"CNY":6.39464,"CHF":0.9114,"CAD":1.23881,"MXN":20.54423,"INR":74.44808,"BRL":5.57063,"RUB":71.80098,"KRW":1175.11443,"IDR":14295.1734,"TRY":9.63691,"SAR":3.75119,"SEK":8.52554,"NGN":410.22181,"PLN":3.94541,"ARS":99.81213,"NOK":8.49529,"TWD":27.78459,"IRR":42000.64577,"AED":3.67284,"COP":3827.77643,"THB":33.32047,"ZAR":15.23269,"DKK":6.40357,"MYR":4.15212,"SGD":1.34783,"ILS":3.11624,"HKD":7.78416,"EGP":15.7003,"PHP":50.65881,"CLP":811.73282,"PKR":169.4547,"IQD":1458.01958,"DZD":136.722,"KZT":428.93534,"QAR":3.6499,"CZK":21.94293,"PEN":4.0008,"RON":4.25921,"VND":22747.41599,"BDT":85.57148,"HUF":308.78687,"UAH":26.25062,"AOA":598.0065,"MAD":9.06226,"OMR":0.38491,"CUC":24.00026,"BYR":2.00003,"AZN":1.69502,"LKR":200.00259,"SDG":438.90856,"SYP":2511.07513,"MMK":1746.02836,"DOP":56.29093,"UZS":10690.31508,"KES":111.25137,"GTQ":7.73108,"URY":44.18107,"HRV":6.47553,"MOP":8.01811,"ETB":47.31305,"CRC":635.74442,"TZS":2298.03956,"TMT":3.49009,"TND":2.80635,"PAB":1.00002,"LBP":1505.5263,"RSD":101.16202,"LYD":4.54568,"GHS":6.00013,"YER":249.956,"BOB":6.82018,"BHD":0.377,"CDF":1999.22628,"PYG":6875.19435,"UGX":3550.05822,"SVC":8.7497,"TTD":6.74137,"AFN":90.84208,"NPR":119.13277,"HNL":24.06657,"BIH":1.68483,"BND":1.34753,"ISK":129.16264,"KHR":4060.117,"GEL":3.14003,"MZN":63.22108,"BWP":11.45513,"PGK":3.5113,"JMD":153.22216,"XAF":564.86281,"NAD":15.2189,"ALL":105.53113,"SSP":391.0052,"MUR":42.90097,"MNT":2830.04693,"NIO":35.21094,"LAK":10330.27262,"MKD":53.08156,"AMD":474.80501,"MGA":3928.06091,"XPF":102.48118,"TJS":11.26034,"HTG":98.0013,"BSD":1.00003,"MDL":17.41883,"RWF":1018.02194,"KGS":84.77099,"GNF":9510.20822,"SRD":21.40242,"SLL":10779.18736,"XOF":568.81159,"MWK":807.36713,"FJD":2.06806,"ERN":15.05028,"SZL":15.21372,"GYD":207.78611,"BIF":1980.25293,"KYD":0.82002,"MVR":15.42042,"LSL":15.23032,"LRD":146.80405,"CVE":94.95278,"DJF":177.50237,"SCR":14.42749,"SOS":575.00647,"GMD":52.15123,"KMF":424.6543,"STD":21.11031,"XRP":0.83002,"AUD":1.34372,"BGN":1.68394,"BTC":0.0159,"JOD":0.70801,"GBP":0.73402,"ETH":0.00022,"EUR":0.86112,"LTC":0,"NZD":1.40184}}
The data section contains many key value pairs, but their number and names vary according to base_currency. (For example if i send request with USD there is no USD key or if i send request with CNY there is no CNY key in data section)
So what kind of data class should I create so that I can use it with the retrofit and gsoncreator libraries. (I am also trying to use and learn jetpack android libraries if this is important)
i use that data classes: (I am not using gson annotations because i believe my variables names are correct and i try that it doesn't help)
data class ResponseFromApi(val data: Data,val query: Query)
data class Query(val apikey: String, val base_currency: String, val timestamp: Int)
data class Data(val hashmapForData: HashMap)
(i suspect some values are integer but i am not sure)
it doesn't work. Maybe that's not the problem. I don't know but least i need to know, Are these classes correct? What is the proper way to do this.
And i don't know how to get error message from retrofit object so i can identify the problem. But this is another question.
...ANSWER
Answered 2021-Nov-04 at 09:37Arpit Shukla's answer is correct.
QUESTION
I have the following string for which I want to extract data:
...ANSWER
Answered 2021-Sep-27 at 08:41You can create a regex and workaround the solution-
QUESTION
I'm creating a converter from one currency to another and vice-versa. The method below is run with a click of a button, but it's giving an error and quitting the app.
activity_main.xml:
...ANSWER
Answered 2021-Sep-11 at 08:43The error lied within the onClick function ,i.e., converter function of your application . You tried to set value to EditText in the form of Int , Dollar.setText((int) DollarResult)
which is not the appropriate manner of doing so . You need to set String to a EditText .
So your converter function should look like this :
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