Wavelets are actually a topic of pure mathematics. But over the last couple of decades, they have shown great promise and are now being adapted for a vast number of applications. They are used in image compression, molecular dynamics, seismology, physics, DNA analysis etc. One of the main advantages of wavelet analysis is the amount … Continue reading Wavelet Analysis
Category: Image Processing
Fourier Analysis
Most of the people in the tech field have already heard about Fourier analysis by now. Some of them love it, some of them hate it and the remaining few are just not sure what it is! Fourier analysis is one of the most fundamental tools in the field of engineering and technology. In fact, … Continue reading Fourier Analysis
Fingerprint Recognition
Fingerprint recognition was one of the first forms of biometric authentication techniques developed. Biometric authentication refers to the process of identifying humans by their natural traits. This can include fingerprints, face, voice, iris etc. When you want machines to authenticate a particular person, you choose a feature of that person which he cannot control. Fingerprints … Continue reading Fingerprint Recognition
Understanding Camera Resolution
Cameras are being embedded everywhere. We find them on our phones, tablets, laptops and other types of gadgets as well. Digital cameras are getting sharper and smarter by the day. Some cameras capture good quality pictures while some cameras don't. We frequently come across the camera specs which mention the 'MP' value of the camera. You understand … Continue reading Understanding Camera Resolution
Good Things Come In Small Packages
We encounter digital images everyday. We see a lot of JPEG files on our computers, cameras, phones and tablets. The actual images are huge and it should actually take up a lot of space to fit in all that data. But somehow our machines are able to compress all those images and store everything compactly. … Continue reading Good Things Come In Small Packages
The Magic Of Reverse Image Search
Are you familiar with the images shown above? What if you want to find out what these images contain? For those of you who are not familiar with Google reverse image search, do the following: Go to Google Images and click on the camera icon towards the right end of the search bar. Now, you … Continue reading The Magic Of Reverse Image Search
Perpetual Enigma 