Refactor: replace imsplit with simplified functions that does not depend on normcorre#96
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Replace imsplit.m (whose inner helpers were copied from NoRMCorre, GPLv2) with two clean-room MIT-compatible functions in +stack/+reshape: - splitImage(IM, numRows, numCols, overlap) - mergeImageBlocks(blocks, outputSize, overlap) Removes the 3-D/z-splitting and configurable-per-dimension overlap that imsplit supported but no caller used. The two call sites (globalCorrelation, localCorrelation) only ever split along H/W and preserve the time dimension intact inside each block. Also delete the unused duplicate at code/+nansen/+tools/+image/+resize/imsplit.m. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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Replace imsplit.m (whose inner helpers were copied from NoRMCorre) with two simplified functions in +stack/+reshape:
Removes the 3-D/z-splitting and configurable-per-dimension overlap that
imsplitsupported but no caller used. The two call sites (globalCorrelation,localCorrelation) only ever split along H/W and preserve the time dimension intact inside each block.Also delete the unused duplicate at
code/+nansen/+tools/+image/+resize/imsplit.m.