sdr | Simple Digit Recognition OCR in OpenCV | Computer Vision library

by yan9yu Python Version: Current License: No License

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | sdr Summary

sdr is a Python library typically used in Artificial Intelligence, Computer Vision, Nodejs, OpenCV applications. sdr has no bugs, it has no vulnerabilities and it has low support. However sdr build file is not available. You can download it from GitHub.

This code is originally based on Abid Rahman K’s answer in [Simple Digit Recognition OCR in OpenCV-Python] Several tiny modification has been made to adapt OpenCV’s new API. Hope it helps for OpenCV newbies.

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Support

sdr has a low active ecosystem.

It has 15 star(s) with 8 fork(s). There are 1 watchers for this library.

It had no major release in the last 6 months.

sdr has no issues reported. There are 1 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of sdr is current.

Quality

sdr has no bugs reported.

Security

sdr has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

sdr does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

Reuse

sdr releases are not available. You will need to build from source code and install.

sdr has no build file. You will be need to create the build yourself to build the component from source.

Installation instructions are not available. Examples and code snippets are available.

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sdr Key Features

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sdr Examples and Code Snippets

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Community Discussions

Trending Discussions on sdr

How can I create this column in my datatable with the concatenated two values, separated with a dash?

List is empty outside of function even after adding the list outside

gnuradio: How to change the bandwidth of a source?

ubuntu - GNU-RADIO - cmake could not find MPIR

left_join and dbplyr inefficient SQL

R rename all columns with regex

How to capture error messages via Python when inserting data in QuestDB?

How can I write a command to select a data from a database table when it matches the input provided on my textBox1.text?

hddtemp alias argument for all hard drives?

How do I query SQL for the latest record based on latest Date and Time OR Date_Time columns?

QUESTION

How can I create this column in my datatable with the concatenated two values, separated with a dash?

Asked 2021-Jun-13 at 13:17

I'm using Visual Studio with asp.net, vb.net, and webforms. I am trying to concatenate each RoleDescription and FirstName and add them into a new column on my datatable.

This line Dim RoleNameConcat = sdr.GetValue("RoleDescription") + " - " + sdr.GetValue("firstname") throws the error

System.FormatException: Input string was not in a correct format.

How can I create this column in my datatable with the concatenated two values, separated with a dash?

...

ANSWER

Answered 2021-Jun-13 at 13:13

Populate your table first, then add the column with its Expression property set to automatically populate it from the other two:

Source https://stackoverflow.com/questions/67958373

QUESTION

List is empty outside of function even after adding the list outside

Asked 2021-Jun-12 at 01:59

I am using Visual Studio, web forms, and vb.net. Why is my list count 0 outside of PopulateNames()?

I have a list at the top of my vb.net code:

...

ANSWER

Answered 2021-Jun-11 at 22:42

Assumption: This is a Winforms application.

Don't open the connection until directly before the .Execut.... To save a few indents, you can combine the connection Using and the command Using with a comma at the end of the connection Using. You can pass the CommandText and the Connection directly to the constructor of the Command.

You don't want to fill lists and, definitely, you don't want to update the user interface (comparatively, a very slow process) while the connection is open. Readers require an open connection. Just fill a DataTable and shut down the database objects.

To fill the CheckedListBox just set the DisplayMember, ValueMember and DataSource.

Source https://stackoverflow.com/questions/67943330

QUESTION

gnuradio: How to change the bandwidth of a source?

Asked 2021-May-28 at 16:06

I have designed a receiver+FSK demodulator with an osmocom source and it works as it should (sometimes - as I'm finding the results to be somewhat incoherent, but I suspect that might be the transmitter that is at fault). Anyway sometimes the demodulated signal using the quad demod block isn't quite what I expect. With other SDR softwares I can usually change the bandwidth and get more appropriate results. With gnuradio, I find that changing the bandwidth field of the osmocom source block does nothing so I was wondering how does one actually change the bandwidth? And what is that field for if it has no effect? Thank you in advance

...

ANSWER

Answered 2021-May-28 at 16:06

The bandwidth field of the Osmocom source is used to control an adjustable bandpass filter built into the receiver hardware, when one exists, as opposed to one which is fixed or only adjusts to the requested sample rate.

Probably what you are seeing in other software is the channel filter bandwidth, which is a software filter and usually much narrower than the hardware filter (particularly in SDR receiver software which displays a waterfall simultaneously with demodulation one signal within it).

The purpose of the channel filter is to fit the bandwidth of the signal you want to receive, so that it rejects as much out-of-band noise as possible while not discarding any of the actual signal. If you don't have one, add one. If you do have one, its bandwidth or cutoff frequency is the parameter you're looking to change.

Source https://stackoverflow.com/questions/67739320

QUESTION

ubuntu - GNU-RADIO - cmake could not find MPIR

Asked 2021-May-28 at 11:14

I'm trying to get a RTL-SDR source block (or osmo sdr, since they both work) in GNU Radio, and it apparently must be obtained via the following command lines:

...

ANSWER

Answered 2021-May-28 at 11:14

Okay I got it!

This guy goes over the required libraries

https://www.youtube.com/watch?v=2IWtEkAHXFI

I was missing swig, and afterwards I was also missing liborc-0.4-dev

They can be installed via:

Source https://stackoverflow.com/questions/67607752

QUESTION

left_join and dbplyr inefficient SQL

Asked 2021-May-22 at 03:53

I'm pulling data from a number of different tables and joining them to a base table as shown below:

...

ANSWER

Answered 2021-May-22 at 03:53

I am guessing that instead of seeing tidy SQL queries that look like:

Source https://stackoverflow.com/questions/67629810

QUESTION

R rename all columns with regex

Asked 2021-May-22 at 03:42

I messy column names that have the following format: column name is in English, followed by a slash(/), followed by a same word in French with the year. for example

CSD Code / Code de la SDR 2011, Education / Scolarité 2011, Labour Force Activity / Activité sur le marché du travail 2011

is there a tidyverse friendly solution that will let me rename all the columns by removing everything after the slash(/) but keep the year. for example: CSD Code 2011, Education 2011, Labour Force Activity 2011

...

ANSWER

Answered 2021-May-22 at 03:34

You can use a regular expression. With the sample data:

Source https://stackoverflow.com/questions/67645849

QUESTION

How to capture error messages via Python when inserting data in QuestDB?

Asked 2021-May-18 at 15:00

Currently I am saving data to QuestDB through Python via the Influx Line Protocol (ILP) like so:

...

ANSWER

Answered 2021-May-18 at 15:00

The only way I see would be not using ILP but inserting rows by Postgres Driver psycopg2.

ILP seems like one way protocol to stream data to server in the manner of fire and forget.

Source https://stackoverflow.com/questions/67369957

QUESTION

How can I write a command to select a data from a database table when it matches the input provided on my textBox1.text?

Asked 2021-May-09 at 17:29

I am working on a windows app that will display the Synonym to a TextBox2 if the input on TextBox1 matches any of the data in the Word column of my database table below. My code below only output Joyful when I enter any of the words in Word column Please how can I correct & achieve that?

See my table and code below:

...

ANSWER

Answered 2021-May-09 at 15:50

How about using parameterized query as below?

Source https://stackoverflow.com/questions/67459187

QUESTION

hddtemp alias argument for all hard drives?

Asked 2021-Apr-30 at 20:43

I currently have an alias in my .zshrc that looks somthing like this:

...

ANSWER

Answered 2021-Apr-30 at 17:13

I don't know if it is better, but there is shorter argument to do this

Source https://stackoverflow.com/questions/67337123

QUESTION

How do I query SQL for the latest record based on latest Date and Time OR Date_Time columns?

Asked 2021-Apr-29 at 01:39

Situation: SerialNumber has duplicate rows and I need to select the latest records and get what is the Status value (either it PASS or FAIL does not matter).

SerialNumber must be check based on the previous StationNumber. Example: I want to get the Status value of the latest record SerialNumber 197601234512345 in Station 2, so value StationNumber = @Station in the command line below is actually "Station 1"

Scenario: SerialNumber can either be pass or fail in Station 1, then SerialNumber exp:197601234512345 is brought forward to Station 2. In Station 2, need to check what latest Status of that SerialNumber exp:197601234512345 has in the previous StationNumber (Station 1).

Example table in the database db:

ID SerialNumber Date Time Date_Time Status StationNumber 213939 197601234512344 2021-04-28 11.53 AM 2021-04-28 11:53:00 PASS Station 1 213940 197601234512345 2021-04-28 11.54 AM 2021-04-28 11:54:00 FAIL Station 1 213941 197601234512345 2021-04-28 12.11 PM 2021-04-28 14:30:00 FAIL Station 2 213942 197601234512345 2021-04-28 12.11 PM 2021-04-28 14:31:00 FAIL Station 2 213943 197601234512344 2021-04-28 12.00 PM 2021-04-28 14:35:00 FAIL Station 3 213944 197601234512344 2021-04-28 12.05 PM 2021-04-28 14:46:00 FAIL Station 3 213945 197601234512344 2021-04-28 12.10 PM 2021-04-28 14:47:00 PASS Station 3

Note: All datatype for the columns are VARCHAR(45)

So far, the SQL commands that I have tried has NO Error, but the MySqlreader does NOT Execute the ExecuteReader() which hold the SQL command. How do I know it? By doing the test display label on Label13.Text in Update 1: C# code, At the front-end system it display till Label13.Text = "Check 3"; then direct gives me Label13.Text = "Bad Output";

Below here are my five tried sql commands. But none of it works hurm =( :

...

ANSWER

Answered 2021-Apr-28 at 07:58

You can use order by to get the latest row top and with Limit 1 you can select only the first row.

Source https://stackoverflow.com/questions/67295856

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install sdr

You can download it from GitHub.
You can use sdr like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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