Archive for the ‘Digital Imaging’ Category

Artifacts – Part 1

In digital photography artifacts refer to the undesirable modifications caused by the sensor, optics, and internal image processing algorithms of the camera. On low budget compact cameras these artifacts are more visible and easy to identify. On the other hand, top DSLR cameras will require a more careful analysis to identify these artifacts and most […]

Aliasing And Anti-Aliasing

All the pixels in a digital image have a square form. For this reason if you zoom in on areas where there are diagonal lines or circles, you will observe that they have a jagged appearance. This is the aliasing or steps effect. Here you can see an example: