Method
VipsRegionshrink_method
Declaration [src]
int
vips_region_shrink_method (
VipsRegion* from,
VipsRegion* to,
const VipsRect* target,
VipsRegionShrink method
)
Description [src]
Write the pixels target in to from the x2 larger area in from.
Non-complex uncoded images and LABQ only. Images with alpha (see
vips_image_hasalpha()) shrink with pixels scaled by alpha to avoid fringing.
method selects the method used to do the 2x2 shrink.
See also
Parameters
to-
Type:
VipsRegionDestination region.
The argument will be modified by the function. The caller of the method takes ownership of the returned data, and is responsible for freeing it. target-
Type:
VipsRectVipsRectof pixels you need to copy.The data is owned by the caller of the method. method-
Type:
VipsRegionShrinkMethod to use when generating target pixels.