Specifications for ASAP compatible overlays

[amtsak]

I would like to use pyvips to create pyramid tif mask overlays and display them in ASAP viewer. However, even though the mask can be read fine with pyvips, I cannot get it to display correctly as overlay in ASAP.

Is there a spec for pyramid tif files that can be used as ASAP overlays in the viewer? E.g.,

• do the number of levels have to match between the WSI and its overlay?
• do the level resolutions have to match between the WSI and the overlay?
• do the compressions have to match (e.g. jpeg, lzw) between the WSI and its overlay?
• which xml tags/ properties must be present to view the overlays in ASAP?

[464hee]

Save_tif.zip
This is the sample code I wrote to the mask using ASAP. I hope it can help you

[464hee]

I am also exploring third-party databases other than ASAP to write masks, so that the overlay can be accepted in ASAP, but there are difficulties and no breakthrough has been made for the time being