Package boofcv.alg.filter.blur.impl

Class ImplMedianHistogramInner

java.lang.Object

boofcv.alg.filter.blur.impl.ImplMedianHistogramInner

public class ImplMedianHistogramInner
extends Object

A faster version of the histogram median filter that only processes the inner portion of the image. Instead of rebuilding the histogram from scratch for each pixel the histogram is updated using results from the previous pixel. When computing the histogram the previous median is used as a hint to the new median. The original implementation is similar to the algorithm proposed in [1]. If you need to cite something cite this library and mention that paper.

[1] Huang, T.S., Yang, G.J. and Tang, G.Y. (1979) A fast two-dimensional median filtering algorithm. IEEE Trans. Acoust. Speech Signal Process. 27, 13-18

Constructor Summary

Constructors

Constructor	Description
ImplMedianHistogramInner()

Method Summary

Modifier and Type	Method	Description
static void	process(GrayU8 input, GrayU8 output, int radiusX, int radiusY, GrowArray<DogArray_I32> work)	Applies a median image filter.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ImplMedianHistogramInner

public ImplMedianHistogramInner()

Method Details

process

public static void process(GrayU8 input,
 GrayU8 output,
 int radiusX,
 int radiusY,
 GrowArray<DogArray_I32> work)

Applies a median image filter.

Parameters:

input - Input image. Not modified.

output - Filtered output image. Modified.

radiusX - Size of the filter region. x-axis

radiusY - Size of the filter region. Y-axis

work - Creates local work space arrays