[Octave-bug-tracker] [bug #51769] [octave forge] (image) imresize bilinear interpolation inaccurate

[Christof Kaufmann]

Follow-up Comment #15, bug #51769 (project octave):

Thanks for the checks. I fixed the issue with multi-channel images and added a
corresponding test, for 1 to 3 channels and for "nearest", "bilinear" and
"bicubic". It just checks that resizing a multi-channel image is equivalent to
resizing the channels separately.

Regarding the gray level difference: The tests have a tolerance of 1. It might
be a rounding issue (tie break), I forgot. Should we investigate this or use
tolerances only at tie breaks in the test?

(file #50977, file #50978)
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Additional Item Attachment:

File name: imresize.diff                  Size:18 KB
    <https://file.savannah.gnu.org/file/imresize.diff?file_id=50977>

File name: imresize.m                     Size:15 KB
    <https://file.savannah.gnu.org/file/imresize.m?file_id=50978>



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