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Description
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FULL PRODUCT VERSION :
[ xxxxx@xxxxx java]$ java -version
java version "1.4.1_02"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1_02-b06)
Java HotSpot(TM) Client VM (build 1.4.1_02-b06, mixed mode)
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And, on another computer : 1.4.1_01
FULL OS VERSION :
Redhat Linux 8.0 and 9.0
Mandrake Linux 9.0
Windows XP
EXTRA RELEVANT SYSTEM CONFIGURATION :
Tested with JAI 1.1.1 and 1.1.2_beta
A DESCRIPTION OF THE PROBLEM :
When we create a ROI with a Polygon shape that covers 2 or more tiles of a tiled image, histogram operator fails.
We got an exception:
java.lang.IllegalArgumentException
The specified Rectangle is not completely contained within the Raster`s bounds.
But, if we create a ROI with de bounding box (rectangle shape) of the same polygon then histogram operator works fine.
STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
See source code below.
1- Copy below source code
2- Compile the program
3- Find an tiled image (it used a TIFF file)
-In my test, my roi size is 100x100
-Tile size must be smaller than 100x100 in width and/or height
-I can send an test image if necessary
4- Run the program
java testPolygonROI myimage.tif
5- An exception will be throwed.
EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
No Exception... an the Histogram customer should be correctly returned.
ACTUAL -
An exception. See error message below.
ERROR MESSAGES/STACK TRACES THAT OCCUR :
[ xxxxx@xxxxx java]$ /home/eric/temp/j2sdk1.4.1/bin/java testPolygonROI
Image Size : 512, 512
Tile Size : 512, 8
Exception in thread "main" java.lang.IllegalArgumentException: The specified Rectangle is not completely contained within the Raster`s bounds.
at javax.media.jai.PixelAccessor.getPixels(PixelAccessor.java:596)
at javax.media.jai.Histogram.countPixelsByte(Histogram.java:694)
at javax.media.jai.Histogram.countPixels(Histogram.java:667)
at com.sun.media.jai.opimage.HistogramOpImage.accumulateStatistics(HistogramOpImage.java:114)
at javax.media.jai.StatisticsOpImage.getProperty(StatisticsOpImage.java:300)
at javax.media.jai.RenderedOp$1.getProperty(RenderedOp.java:1819)
at javax.media.jai.PropertyEnvironment.getProperty(PropertyEnvironment.java:207)
at javax.media.jai.PropertySourceImpl.getProperty(PropertySourceImpl.java:285)
at javax.media.jai.WritablePropertySourceImpl.getProperty(WritablePropertySourceImpl.java:138)
at javax.media.jai.RenderedOp.getProperty(RenderedOp.java:1993)
at testPolygonROI.main(testPolygonROI.java:42)
REPRODUCIBILITY :
This bug can be reproduced always.
---------- BEGIN SOURCE ----------
testPolygonROI.java
===================
import java.awt.*;
import javax.media.jai.*;
public class testPolygonROI {
public static void main(String[] args) {
// First argment if image filename to load. By default : image512.tif
String filename = args.length>0 ? args[0] : "image512.tif";
PlanarImage image = JAI.create("fileload", filename);
// Print image and tile size.
System.out.println("Image Size : " + image.getWidth() + ", " + image.getHeight());
System.out.println("Tile Size : " + image.getTileWidth() + ", " + image.getTileHeight());
// Create a polygon
Polygon polygon = new Polygon();
polygon.addPoint(0, 0);
polygon.addPoint(0, 100);
polygon.addPoint(100, 100);
polygon.addPoint(100, 0);
// Our polygon is a square. Get it as rectangle
Rectangle rect = polygon.getBounds();
// First test : ROI is a Rectangle
// this test run ok without any problem
ParameterBlockJAI pb1 = new ParameterBlockJAI("histogram");
pb1.addSource(image);
ROI roi1 = new ROIShape(rect);
pb1.setParameter("roi", roi1);
RenderedOp op1 = JAI.create("histogram", pb1);
Histogram histo1 = (Histogram) op1.getProperty("histogram");
// Second test : ROI is a Polygon that has the same area
// this test fails when polygon ROI convert two or more tiles
ParameterBlockJAI pb2 = new ParameterBlockJAI("histogram");
pb2.addSource(image);
ROI roi2 = new ROIShape(polygon);
pb2.setParameter("roi", roi2);
RenderedOp op2 = JAI.create("histogram", pb2);
Histogram histo2 = (Histogram) op2.getProperty("histogram");
}
}
---------- END SOURCE ----------
CUSTOMER SUBMITTED WORKAROUND :
Convert ROIShape to a ROI constucted by an RenderedImage.
Polygon polygon = ....
ROI roi = new ROIShape(polygon);
roi = new ROI(roi.getAsImage());
pb.setParameter("roi", roi);
...
(Incident Review ID: 185951)
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Verified with testPolygonROI2.java (attached) which does not require an input file.
xxxxx@xxxxx 2003-08-14
Posted Date : 2005-11-16 18:50:10.0
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