Deploy Custom Object Detection using Flask & Python, Step by Step

You only look once (YOLO) is a state-of-the-art, real-time object detection system. The latest version is YOLOV5. These YOLO models are well known for speed. They can detect multiple images in video frames in a fraction of seconds. The inference time of YOLO model with compare to the other models like EfficientDet and RetinaNet is better. YOLO is known for its speed for detecting the objects in image/video. If your usecase is more concern about real time detection of multiple objects then YOLO is the most suitable. Now, We have YOLO V5 which has around **476 FPS **in its small version of the model.

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In this article, I will walk you through the steps to deploy your own custom YOLO model in localhost.

Let’s begin then

Here, I will walk through all the other steps in brief as our agenda is to deploy the model and use it on our website.

1. **Grab images for labeling: **It is the first step. Here, you can go to google and search for the pictures you want to build your custom for. Or, you can go around and click photos of objects and gather them for the model. That is your choice how better you want your model to be.
2. **Label your images. **Give a fair amount of data for this step as it is essential for your accuracy. You can use any tools for labeling your data. There is no automatic approach to label your custom data. You have to do it manually. And this is the most frustrating and time-consuming part of the object detention, but surely you will get the fruitful result if you give your dedication to this part. I have used LabelImg tool for labeling.
3. Select object detection algorithm Here, we will be using YOLO-tiny. And, you can refer the custom object detection code here. https://github.com/pranjalAI/Yolo-tiny-insurance. There are many other approaches for object detection like SSD, Yolo etc.
4. After getting your Yolo weight file from step 3, You need to convert the Yolo generated darknet model .weight file into TensorFlow serving so that we can serve it using TensorFlow to our webpage.

So, if you have reached till here. Cheers!! You have done a great job. You are ready to move your model to production.

#deployment #image-processing #deep-learning #object-detection #python

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How to Find Ulimit For user on Linux

How can I find the correct ulimit values for a user account or process on Linux systems?

For proper operation, we must ensure that the correct ulimit values set after installing various software. The Linux system provides means of restricting the number of resources that can be used. Limits set for each Linux user account. However, system limits are applied separately to each process that is running for that user too. For example, if certain thresholds are too low, the system might not be able to server web pages using Nginx/Apache or PHP/Python app. System resource limits viewed or set with the NA command. Let us see how to use the ulimit that provides control over the resources available to the shell and processes.

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MEAN Stack Tutorial MongoDB ExpressJS AngularJS NodeJS

We are going to build a full stack Todo App using the MEAN (MongoDB, ExpressJS, AngularJS and NodeJS). This is the last part of three-post series tutorial.

MEAN Stack tutorial series:

AngularJS tutorial for beginners (Part I)
Creating RESTful APIs with NodeJS and MongoDB Tutorial (Part II)
MEAN Stack Tutorial: MongoDB, ExpressJS, AngularJS and NodeJS (Part III) 👈 you are here
Before completing the app, let’s cover some background about the this stack. If you rather jump to the hands-on part click here to get started.

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systemctl List All Failed Units/Services on Linux

Is there is a command to print list all failed units or services when using systemd on Linux? Can you tell me the systemctl command to list all failed services on Linux?

This quick tutorial explains how to find/list all failed systemd services/units on Linux operating systems using the systemctl command.

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How to configure AWS SES with Postfix MTA

How do I configure Amazon SES With Postfix mail server to send email under a CentOS/RHEL/Fedora/Ubuntu/Debian Linux server?

Amazon Simple Email Service (SES) is a hosted email service for you to send and receive email using your email addresses and domains. Typically SES used for sending bulk email or routing emails without hosting MTA. We can use Perl/Python/PHP APIs to send an email via SES. Another option is to configure Linux or Unix box running Postfix to route all outgoing emails via SES.

• » Remove sendmail
• » Install postfix
• » Configuring postfix for SES
• » Test postfix

Procedure to configure AWS SES with Postfix

Before getting started with Amazon SES and Postfix, you need to sign up for AWS, including SES. You need to verify your email address and other settings. Make sure you create a user for SES access and download credentials too.

Step 1 – Uninstall Sendmail if installed

If sendmail installed remove it. Debian/Ubuntu Linux user type the following apt command/apt-get command:

$`` sudo apt --purge remove sendmail

CentOS/RHEL user type the following yum command or dnf command on Fedora/CentOS/RHEL 8.x:

$`` sudo yum remove sendmail

$`` sudo dnf remove sendmail

Sample outputs from CentOS 8 server:

Dependencies resolved.
===============================================================================
 Package           Architecture  Version               Repository         Size
===============================================================================
Removing:
 sendmail          x86_64        8.15.2-32.el8         @AppStream        2.4 M
Removing unused dependencies:
 cyrus-sasl        x86_64        2.1.27-1.el8          @BaseOS           160 k
 procmail          x86_64        3.22-47.el8           @AppStream        369 k

Transaction Summary
===============================================================================
Remove  3 Packages

Freed space: 2.9 M
Is this ok [y/N]: y

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Creating RESTful APIs with NodeJS and MongoDB Tutorial

Welcome to this tutorial about RESTful API using Node.js (Express.js) and MongoDB (mongoose)! We are going to learn how to install and use each component individually and then proceed to create a RESTful API.

MEAN Stack tutorial series:

AngularJS tutorial for beginners (Part I)
Creating RESTful APIs with NodeJS and MongoDB Tutorial (Part II) 👈 you are here
MEAN Stack Tutorial: MongoDB, ExpressJS, AngularJS and NodeJS (Part III)

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