An object that retrieves pixel samples for processing by a filter kernel.
- iOS 9.0+
- macOS 10.4+
- tvOS 9.0+
- Core Image
CISampler class retrieves samples of images for processing by a
CIKernel object. A
CISampler object defines a coordinate transform, and modes for interpolation and wrapping. You use
CISampler objects in conjunction with other Core Image classes, such as
CIFilter, to create custom filters.