Image resolution

[HeleneFabia]

The paper about DOTA states that they "provide the spatial resolution for each image in our dataset, which implies the actual size of an instance" – however, I have been unable to find the information about image resolution. Neither is it included in the json files, nor can the resolution be accessed through rasterio's Affine module (NotGeoreferenceWarning: Dataset has no geotransfrom, gcps, or rpcs. The identity matrix be returned.)

I'd be happy hearing from someone having had the same issue and solved it.

[dingjiansw101]

In the previous version, the first two lines include the GSD information of an image. For the new DOTA-v2 version, we provide an extra meta file (see meta data (https://captain-whu.github.io/DOTA/dataset.html)).