AlternativeImage "comments" attribute for grayscale images

[kba]

Such as ocropus' nrm. For other transformations we use the form binarized, dewarped etc (c.f. #29). How do we name alternative images that are kind-of-binarized but with some gray at the edges of glyphs?

[wrznr]

I have to check the idea and the "techniques" of this image transformation process. But given the file extension, I opt for normalized (with further explanations in the glossary).

[kba]

The reasoning why ocropy does it like this is explained in the ocropy wiki.

normalized makes sense esp. considering the nrm suffix but is a very generic term. semi-binarized? grayscalized? quasi-binarized?

[wrznr]

grayscalized is technically not correct, right? What about ternarized?

[wrznr]

It will be grayscale_normalized.

[kba]

OK, so grayscale_normalized for comments of the resulting mets:file. Should we also extend the step property in ocrd-tool.json to contain preprocessing/optimization/grayscale_normalization in addition to preprocessing/optimization/binarization?

[wrznr]

Yes!

…

On Mon, May 14, 2018 at 5:31 PM, Konstantin Baierer < ***@***.***> wrote: OK, so grayscale_normalized for comments of the resulting mets:file. Should we also extend the step property in ocrd-tool.json to contain preprocessing/optimization/grayscale_normalization in addition to preprocessing/optimization/binarization? — You are receiving this because you were assigned. Reply to this email directly, view it on GitHub <#41 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AZeFEzefNsFDGFdCA60dYBDf7ciZrF4bks5tyaNdgaJpZM4T2-hY> .

[kba]

Is in v1.1.5, both the docs and schema.