Editing Foveon X3 sensor (section)

===Color artifacts===
Because demosaicing is not required for the Foveon X3 sensor to produce a full-color image, the color artifacts ("colored [[jaggies]]") associated with the process are not seen. The separate anti-aliasing filter<ref>See, ''Optical anti-aliasing filter'' section of [[anti-aliasing filter]]</ref> commonly used<ref group="n">Though its use is almost universal with Bayer sensors in digital cameras, it is not absolutely necessary. Kodak once produced two digital cameras, the [[Kodak DCS Pro SLR/n|DCS Pro SLR/n]] and DCS Pro SLR/c (''Digital Photography Review,'' [http://www.dpreview.com/reviews/kodakslrc/page2.asp Kodak DCS Pro SLR/c Review], June 2004, Retrieved March 3, 2007) using Bayer sensors without such a filter. However, significant [[moiré pattern]]s [http://www.dpreview.com/reviews/kodakdcs14n/page22.asp were produced when photographing very fine detail]. Retrieved March 3, 2007.</ref> to mitigate those artifacts in a Bayer sensor is not required; this is because little [[aliasing]] occurs when the photodiodes for each color, with the assistance of the [[microlens]]es, integrate the optical image over a region almost as big as the spacing of sensors for that color.<ref group="n">Microlenses are commonly used in all types of image sensors in digital cameras; in Bayer-filter sensors, microlenses allow the area of the optical image being averaged (i.e., integrated) per sample to approach 25 percent for red and blue, and 50 percent for green, resulting in very little anti-aliasing. For Foveon X3 sensors, the area being averaged can approach 100 percent for each color, resulting in a significant anti-alias filter effect.</ref><ref>{{cite book|author=Brian W. Keelan|title=Handbook of Image Quality: Characterization and Prediction|publisher=Marcel–Dekker|year=2004|url= https://books.google.com/books?id=E45MTZn17gEC&pg=RA1-PA388|isbn=0-8247-0770-2|page=390}}</ref> On the other hand, the method of color separation by silicon penetration depth gives more cross-contamination between color layers, meaning more issues with color accuracy.