It sounds like magic, but trust me, it works!
Here’s how it goes: first, you need to collect a ton of images for your network to practice on. These are called “training data.” You can get these from websites or take them yourself with your fancy camera phone. Once you have all the pictures, you feed them into the computer and let it do its thing.
The computer uses something called an algorithm (which is just a fancy word for a set of rules) to analyze each image and figure out what’s in it. It does this by breaking down the picture into smaller parts, or “pixels,” and looking at how they relate to one another. This process is called “convolution.”
The computer then uses these convolutions to create something called a “feature map” that highlights important areas of the image. For example, if you’re trying to teach it to recognize cats, it might highlight the furry parts and ignore things like backgrounds or other animals. This is where we get into some fancy math stuff (sorry!), but basically what happens next is that the computer takes these feature maps and feeds them through a bunch of layers called “neurons.”
Each neuron in the network has its own set of weights, which are essentially numbers that tell it how important each pixel or feature map is. The computer uses something called backpropagation to adjust these weights based on whether the image was correctly identified or not. This process helps the computer learn from its mistakes and improve over time.
Once your network has been trained on a bunch of images, you can use it to identify new pictures that it hasn’t seen before! Just feed them into the system and let it do its thing. It might take some practice to get it right, but with enough training data and patience, you should be able to create an image recognition system that works pretty ***** well.
If you’re interested in learning more about this topic (or if you just want to impress your friends with fancy computer science jargon), I highly recommend checking out some of the resources listed below.