Editing Bicubic interpolation (section)

==Use in computer graphics==

[[Image:Accutance.svg|250px|thumb|The lower half of this figure is a magnification of the upper half, showing how the apparent sharpness of the left-hand line is created. Bicubic interpolation causes overshoot, which increases [[acutance]].]]<!--Don't scale the image, it will greatly reduce the effect-->

The bicubic algorithm is frequently used for scaling images and video for display (see [[Resampling (bitmap)|bitmap resampling]]). It preserves fine detail better than the common [[bilinear filtering|bilinear]] algorithm.

However, due to the negative lobes on the kernel, it causes [[overshoot (signal)|overshoot]] (haloing). This can cause [[Clipping (signal processing)|clipping]], and is an artifact (see also [[ringing artifacts]]), but it increases [[acutance]] (apparent sharpness), and can be desirable.