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Task #10796 (closed)

Opened 11 years ago

Closed 10 years ago

Improve tile-based access to PNG files

Reported by: mlinkert Owned by: mlinkert
Priority: minor Milestone: 5.x
Component: Bio-Formats Version: 4.4.10
Keywords: n.a. Cc:
Resources: n.a. Referenced By: n.a.
References: n.a. Remaining Time: n.a.
Sprint: n.a.

Description (last modified by jamoore)

Reading a tile from a PNG file currently means reading the entire image and then cropping out the desired rectangle. Now that we're no longer using ImageIO, I think it will be possible to be a little smarter, at least in the case of non-interlaced (and possibly unfiltered?) images.

See for example ​http://xkcd.com/980/sources/money_huge.png (alternate URL: ​http://imgs.xkcd.com/comics/money_huge.png)

Change History (2)

comment:1 Changed 11 years ago by jamoore

  • Description modified (diff)

comment:2 Changed 10 years ago by mlinkert

  • Resolution set to fixed
  • Status changed from new to closed
  • Version set to 4.4.10

PR opened: ​https://github.com/openmicroscopy/bioformats/pull/859

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