net.sourceforge.jiu.filters
Class OilFilter
Applies a filter that makes the image look like an oil painting.
This is accomplished by creating a histogram of the neighboring samples
for each input sample and storing the value that occurs most often
in the output image.
If two or more samples occur an equal number of times, the lowest
sample value is picked.
Supported image types
Can process both
GrayIntegerImage and
RGBIntegerImage.
Note that this operation becomes very slow with 16 bits per sample
because a lot of runs over a 65536 element array are necessary.
Usage example
PixelImage image = ...; // some GrayIntegerImage or RGBIntegerImage
OilFilter filter = new OilFilter();
filter.setArea(5, 5);
filter.setInputImage(image);
filter.process();
PixelImage filteredImage = filter.getOutputImage();
Credits
Idea taken from the
Oil class of Jef Poskanzer's
ACME package.
int | computeSample(int[] samples, int numSamples)- Determine the resulting sample for an array with the source sample
and zero or more of its neighbors.
|
void | process()
|
checkAreaHeight, checkAreaWidth, computeSample, getAreaHeight, getAreaWidth, process, process, process, processBorders, processCenter, setArea, setAreaHeight, setAreaWidth |
zeroes
private int[] zeroes
computeSample
public final int computeSample(int[] samples,
int numSamples) Determine the resulting sample for an array with the source sample
and zero or more of its neighbors.
This abstract method must be implemented by classes extending this operation.
The array will hold
numSamples samples, which will be stored
starting at offset
0.
Normally,
numSamples is equal to
AreaFilterOperation.getAreaWidth() times
AreaFilterOperation.getAreaHeight().
Near the border of the image you may get less samples.
Example: the top left sample of an image has only three neighbors (east, south-east and south),
so you will only get four samples (three neighbors and the sample itself).
- computeSample in interface AreaFilterOperation
samples - the array holding the sample(s)numSamples - number of samples in the array
- sample to be written to the output image