Agnes  Sauer

Agnes Sauer


All about images -Types of Images:

Everything we see around us is nothing but an Image. we capture them using our mobile camera. In Signal Processing terms, Image is a signal which conveys some information. First I will tell you about what is a signal? how many types are they? Later part of this blog I will tell you about the images.

We are saying that image is signal. Signals are carry some information. It may be useful information or random noise. In Mathematics, Signal is function which depends on independent variables. The variables which are responsible for the altering the signal are called independent Variables. we have multidimensional signals. Here you will know about only three types of signals which are mainly used in edge cutting techniques such as Image processing, Computer Vision, Machine Learning, Deep Learning.

  • 1D signal: Signals which has only one independent variable. Audio signals are the perfect example. It depends on the time. For instance, if you change time of an audio clip, you will listen sound at that particular time.
  • 2D signal: Signals which depends on two independent variables. Image is an 2D signal as its information is only depends on its length and width.
  • 3D signals : Signals which depends on three independent variables. Videos are the best examples for this. It is just motion of images with respect to time. Here image‚Äôs length and width are two independent variables and time is the third one.

Types of Images:

  • Analog Images: These are natural images. The images which we see with our eye all are Analog image such as all physical objects. It has continuous values. Its amplitude is infinite.
  • **Digital images: **By quantizing the analog images we can produce the digital images. But now-a-days, mostly all cameras produce digital images only. In digital Images, All values are discrete. Each location will have finite amplitude. Mostly we are using digital images for processing.

Image for post

Image for post

Every digital image will have group of pixels. Its coordinate system is starts from top coroner

Digital images contains stack of small rectangles. Each rectangle we call as Pixel. Pixel is the smallest unit in the image.Each Pixel will have particular value that is intensity. this intensity value is produced by the combination of colors. We have millions of colors. But our eye is perceive only three colors and their combinations. Those color we call primary colors i.e., Red, Green and Blue.

Image for post

Image for post

Why only those three colors ???

Do not think much. the reason is as our human eye has only three color receptors. Different combinations in the stimulation of the receptors enable the human eye to distinguish nearly 350000 colors

Lets move to our image topic:

As of now, we knew that image intensity values is combination of Red, Green and Blue. Each pixel in color image will have these three color channels. Generally, we represent each color value in 8 bits i.e., one byte.

Now, you can say how many bits will require at each pixel. We have 3 colors at each pixel and each color value will be stored in 8 bits. Then each pixel will have 24 bits. This 24 bit color image will display 2**24 different colors.

Now you have a question. how much memory does it require to store RGB image of shape 256*256 ???I think so explanation is not required, if you want to clear explanation please comment below.

#machine-learning #computer-vision #image-processing #deep-learning #image #deep learning

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All about images -Types of Images:

I am Developer


Laravel 7/6 Image Validation

In this image validation in laravel 7/6, i will share with you how validate image and image file mime type like like jpeg, png, bmp, gif, svg, or webp before uploading image into database and server folder in laravel app.

#laravel image validation #image validation in laravel 7 #laravel image size validation #laravel image upload #laravel image validation max #laravel 6 image validation

Ahebwe  Oscar

Ahebwe Oscar


how to integrate CKEditor in Django

how to integrate CKEditor in Django

Welcome to my Blog, in this article we learn about how to integrate CKEditor in Django and inside this, we enable the image upload button to add an image in the blog from local. When I add a CKEditor first time in my project then it was very difficult for me but now I can easily implement it in my project so you can learn and implement CKEditor in your project easily.

how to integrate CKEditor in Django

#django #add image upload in ckeditor #add image upload option ckeditor #ckeditor image upload #ckeditor image upload from local #how to add ckeditor in django #how to add image upload plugin in ckeditor #how to install ckeditor in django #how to integrate ckeditor in django #image upload in ckeditor #image upload option in ckeditor

I am Developer


Laravel 7/6 Image Upload Example Tutorial

Laravel image upload example tutorial. Here, i will show you how to upload image in laravel 7/6 with preview and validation.

Before store image into db and folder, you can validate uploaded image by using laravel validation rules. as well as you can show preview of uploaded image in laravel.

Image Upload In Laravel 7/6 with Validation

Image upload in laravel 7/6 with preview and validation. And storage image into folder and MySQL database by using the below steps:

Install Laravel Fresh App
Setup Database Details
Generate Image Migration & Model
Create Image Upload Route
Create Image Controller
Create Image Upload and Preview Blade View
Start Development Server

#laravel 7 image upload example #laravel upload image to database #how to insert image into database in laravel #laravel upload image to storage #laravel image upload tutorial #image upload in laravel 7/6

Lane  Sanford

Lane Sanford


Preprocessing your images for machine learning (image recognition)

During my studies at JKU there was a task for preprocessing images for a machine learning project. It is necessary to clean the raw images before using them in a learning algorithm, so thats why we create a pre-processing function. I think it can be quite useful for others as well so I want to share a bit of my approach. The file is structured in a way that it is easy to understand and also should have a tutorial-like effect.

#image-recognition #image #image-classification #machine-learning #image-processing

I am Developer


Crop and Resize Image Before Upload In Laravel Using with jQuery Copper JS

Crop and resize image size before upload in laravel using jquery copper js. In this post, i will show you how to crop and resize image size in laravel using jQuery copper js in laravel.

This laravel crop image before upload using cropper js looks like:

laravel crop image before upload

Laravel Crop Image Before Uploading using Cropper js Tutorial

Laravel crop image before upload tutorial, follow the following steps and learn how to use cropper js to crop image before uploading in laravel app:

  • Step 1: Install New Laravel App
  • Step 2: Add Database Details
  • Step 3: Create Migration & Model
  • Step 4: Add Route
  • Step 5: Create Controller By Artisan
  • Step 6: Create Blade View
  • Step 7: Make Upload Directory
  • Step 8: Start Development Server


Live Demo Laravel Crop image Before Upload.

#laravel crop image before upload, #laravel crop and resize image using cropper.js #ajax image upload and crop with jquery and laravel #crop and upload image ajax jquery laravel #crop image while uploading with jquery laravel #image crop and upload using jquery with laravel ajax