Right now we're only adjusting card images by width; to improve display on twitter it would be better to crop the image to show the top portion.
Here's an example showing the problem: https://twitter.com/ShakesCoAt100/status/1473292180600942593
The image preview on twitter looks blank, but in fact there is writing at the top of the card.
Adding a region & size something like this pct:0,0,99,40/1200, to the iiif image we're using for social previews will probably work for the majority of cards (the ones that are standard size); but it may not work well for images that are partial cards. To generate a proper image url that takes original image size into account, we'd need to write a custom view that would request the image info and generate the region size accordingly, which may be more effort than is warranted at this point.
Right now we're only adjusting card images by width; to improve display on twitter it would be better to crop the image to show the top portion.
Here's an example showing the problem: https://twitter.com/ShakesCoAt100/status/1473292180600942593
The image preview on twitter looks blank, but in fact there is writing at the top of the card.
Adding a region & size something like this
pct:0,0,99,40/1200,to the iiif image we're using for social previews will probably work for the majority of cards (the ones that are standard size); but it may not work well for images that are partial cards. To generate a proper image url that takes original image size into account, we'd need to write a custom view that would request the image info and generate the region size accordingly, which may be more effort than is warranted at this point.