Class MaxExposure

  extended by skyview.process.ImageFinder
      extended by skyview.process.imagefinder.Border
          extended by skyview.process.imagefinder.MaxExposure

public class MaxExposure
extends Border

This class selects the best image for a pixel by looking for the image with the longest exposure that has the pixel in the field of view. Use of this Finder may not be optimal when using higher order samples, since it will tend to take images out to the edges and thus may have problems there.

Field Summary
Fields inherited from class skyview.process.imagefinder.Border
checkNaNs, CONSUMED, cornersOnly, fromOut, imageUsed, img, input, NO_COVERAGE, NON_PHYSICAL, output, pixelCount, rectCount, retry, SPLIT_X, SPLIT_XY, SPLIT_Y, t2, t3, UNCHECKED
Constructor Summary
Method Summary
protected  double criterion(double val, int index)
          The criterion for the best image
 int[] findImages(Image[] input, Image output)
          Find the appropriate images.
Methods inherited from class skyview.process.imagefinder.Border
bestFit, cornerMatch, edgeOff, getCelest, getImage, minDist, setStrict
Methods inherited from class skyview.process.ImageFinder
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail


public MaxExposure()
Method Detail


public int[] findImages(Image[] input,
                        Image output)
Find the appropriate images. This routine gets the exposures for all of the images before calling the standard BorderImageFinder.

findImages in class Border
input - An array of images from which the output image is to be interpolated.
output - An output image to be generated from the input. This method does not change the output image.
An index array which for each pixel in the output image gives the best image to sample. Note that this has dimension int[nx*ny] where nx changes most rapidly. The values of the index array can be:
  • >= 0: The pixel is best indexed with the given image.
  • -1: [internal] The best image for this pixel has not yet been determined.
  • -2: This pixel is not on any of the input images.
  • -3: This pixel does not represent a physical coordinate.
  • -4: [in other methods] this pixel has already been processed.


protected double criterion(double val,
                           int index)
The criterion for the best image

criterion in class Border