### Enumeration

# GdkPixbuf InterpType

#### Declaration

    enum GdkPixbuf.InterpType

#### Description [src]

Interpolation modes for scaling functions.

The `GDK_INTERP_NEAREST` mode is the fastest scaling method, but has horrible quality when scaling down; `GDK_INTERP_BILINEAR` is the best choice if you aren’t sure what to choose, it has a good speed/quality balance.

Note: Cubic filtering is missing from the list; hyperbolic interpolation is just as fast and results in higher quality.

#### Members

Name | Description
--- | ---
`GDK_INTERP_NEAREST` | Nearest neighbor sampling; this is the fastest and lowest quality mode. Quality is normally unacceptable when scaling down, but may be OK when scaling up.
`GDK_INTERP_TILES` | This is an accurate simulation of the PostScript image operator without any interpolation enabled. Each pixel is rendered as a tiny parallelogram of solid color, the edges of which are implemented with antialiasing. It resembles nearest neighbor for enlargement, and bilinear for reduction.
`GDK_INTERP_BILINEAR` | Best quality/speed balance; use this mode by default. Bilinear interpolation. For enlargement, it is equivalent to point-sampling the ideal bilinear-interpolated image. For reduction, it is equivalent to laying down small tiles and integrating over the coverage area.
`GDK_INTERP_HYPER` | This is the slowest and highest quality reconstruction function. It is derived from the hyperbolic filters in Wolberg’s “Digital Image Warping”, and is formally defined as the hyperbolic-filter sampling the ideal hyperbolic-filter interpolated image (the filter is designed to be idempotent for 1:1 pixel mapping). Deprecated: this interpolation filter is deprecated, as in reality it has a lower quality than the `GDK_INTERP_BILINEAR` filter (Since: 2.38)