jsky.image
Class GreyscaleFilter
java.lang.Object
java.awt.image.ImageFilter
java.awt.image.RGBImageFilter
jsky.image.GreyscaleFilter
- All Implemented Interfaces:
- java.awt.image.ImageConsumer, java.lang.Cloneable
public class GreyscaleFilter
- extends java.awt.image.RGBImageFilter
Filters an image by converting colors to greyscale.
This code was developed by NASA, Goddard Space Flight Center, Code 588
for the Scientist's Expert Assistant (SEA) project.
- Version:
- 07/30/98
- Author:
- J. Jones / 588
Fields inherited from class java.awt.image.RGBImageFilter |
canFilterIndexColorModel, newmodel, origmodel |
Fields inherited from class java.awt.image.ImageFilter |
consumer |
Fields inherited from interface java.awt.image.ImageConsumer |
COMPLETESCANLINES, IMAGEABORTED, IMAGEERROR, RANDOMPIXELORDER, SINGLEFRAME, SINGLEFRAMEDONE, SINGLEPASS, STATICIMAGEDONE, TOPDOWNLEFTRIGHT |
Method Summary |
int |
filterRGB(int x,
int y,
int rgb)
This method is never called because we override filterRGBPixels()
(this is done for efficiency, since don't have to call this method
for every pixel). |
void |
filterRGBPixels(int x,
int y,
int w,
int h,
int[] pixels,
int off,
int scansize)
This method performs the actual modification of the image. |
Methods inherited from class java.awt.image.RGBImageFilter |
filterIndexColorModel, setColorModel, setPixels, setPixels, substituteColorModel |
Methods inherited from class java.awt.image.ImageFilter |
clone, getFilterInstance, imageComplete, resendTopDownLeftRight, setDimensions, setHints, setProperties |
Methods inherited from class java.lang.Object |
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
GreyscaleFilter
public GreyscaleFilter()
- The only constructor.
filterRGB
public int filterRGB(int x,
int y,
int rgb)
- This method is never called because we override filterRGBPixels()
(this is done for efficiency, since don't have to call this method
for every pixel). Normally this method would return a single filtered
pixel value.
- Specified by:
filterRGB
in class java.awt.image.RGBImageFilter
filterRGBPixels
public void filterRGBPixels(int x,
int y,
int w,
int h,
int[] pixels,
int off,
int scansize)
- This method performs the actual modification of the image.
It is overridden for efficiency, since the filterRGB() method is
normally called for each individual pixel in the image.
- Overrides:
filterRGBPixels
in class java.awt.image.RGBImageFilter