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desruisseaux pushed a change to branch geoapi-4.0
in repository https://gitbox.apache.org/repos/asf/sis.git.


    from eceea7f  Make possible to use `BandedIterator` with multi-tiled 
images. It required to retrofit `LinearIterator` into `PixelIterator`.
     new 76cd431  Add more tests and add comments about optimization strategies 
that have been discarded. Two strategies were tried and failed to provide 
significantly better performance:
     new eac2307  Replace the use of `PixelIterator.Window` by cached values of 
previous row. It make easier to provide a special case for one-banded images.

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Summary of changes:
 .../java/org/apache/sis/image/BandedIterator.java  | 14 ++-
 .../java/org/apache/sis/image/PixelIterator.java   | 51 ++++++++---
 .../internal/processing/image/IsolineTracer.java   | 43 +++++-----
 .../sis/internal/processing/image/Isolines.java    | 96 +++++++++++++--------
 .../org/apache/sis/image/PixelIteratorTest.java    | 99 +++++++++++++++++++---
 5 files changed, 216 insertions(+), 87 deletions(-)

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