Direct Known Subclasses:
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.
May wish to specify the MinEdge setting to cope with tht.
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
public int findImages(
Find the appropriate images.
This routine gets the exposures for all of the
images before calling the standard BorderImageFinder.
input - An array of images that may be sampled to get the output image.
output - The output image. In this routine we are interested in its
geometry, not its data.
Returns: 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(int index,
The criterion for the best image
index - The index of the image being considered
nx - The width of the candidate image
ny - The height of the caandiate image
tx - The x-value of the requested point.
ty - The y-value of the requested point.
Returns: A measure of the desirability of using this image to same this point.
Larger is better.