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rmaphoh / AutoMorph

vessel segmentation, artery and vein, optic disc, vascular feature analysis
Apache License 2.0
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Some questions about resolution_information #5

Closed daidaidaluannan closed 1 year ago

daidaidaluannan commented 1 year ago

I am very grateful that your program has been a great help to our work. The fundus imaging device we use has a resolution of 6 nm, but after I change the resolution information in resolution_information.csv, it seems to have no effect on the feature measurement results.

rmaphoh commented 1 year ago

Glad to know that AutoMorph can contribute to your work. The resolution will only influence some features (with unit of nm or um), such as vessel width, optic disc/cup height and width, and other calibre metrics. For some ratio-based features, such as tortuosity and fractal dimension, they will be the same.

daidaidaluannan commented 1 year ago

Thank you very much for your response! If my resolution is 6 microns, does it mean that I just need to set the 'res' column in the 'resolution_information.csv' file to 6?(Please forgive me for referring to the resolution as 6nm in my previous question)

rmaphoh commented 1 year ago

Yep, but I assume that should be 0.006 (For Topcon it is about 0.008).

daidaidaluannan commented 1 year ago

Thanks again for your reply！