Valid and well-formed TIFF's with scanline corruption

compared with
Current by Andrew Amato
on Sep 20, 2012 14:46.

This line was removed.
This word was removed. This word was added.
This line was added.

Changes (8)

View Page History

*Detailed description*
At NANETH we sometimes encounter TIFF's which render incorrectly or do not render at all, although they are being marked as 'valid' and 'well-formed' when inspected with JHOVE.

Photoshop shows a corrupted 'double image' while IrfanView only shows some random pixels on top of a black image. The ImageMagick viewer is not able to render the image, ImageMagick 'identify' reports that there is not enough data available in scanline 'x'. The SPRUCE "Black and White Pixel Detector", which utilizes the Python Image Library (PIL), also does not report any corruption (ie. black or white pixels) as well.

*Possible Solution approaches*
: []


_Reference to the appropriate Dataset page, by hyperlink. Note that all Issues_ *{_}MUST{_}* _be linked to at least one Dataset\!_

_Reference to the appropriate Solution page(s), by hyperlink._