Free boundary condition
# Free boundary condition

In image processing, the free boundary condition is the convention used when applying a convolution kernel to a digital image in which pixel locations that lie outside the image boundaries are interpreted as having a value of zero. The question of what value to assign out-of-bounds pixels may arise, for instance, when applying a 3×3 kernel to the corner pixel in an image.

* This computer graphics–related article is a stub. You can help Wikipedia by expanding it.
* v
* t
* e
