I've migrating Bing ImageSearch to Azure ImageSearch through. It works perfectly through GET request sent to https://api.datamarket.azure.com/Bing/Search/Image
As I see Bing Search
web UI let you filter images with transparent background:
https://www.bing.com/images/search?scope=images&pq=boy&sc=8-3&sp=-1&sk=&cvid=36DB1C9A081B4DAEB71B8161E26E8E6C&q=boy&qft=+filterui:photo-transparent&FORM=R5IR25
However, Azure ImageSearch documentation does not show any option to filter images with transparent background: https://www.bing.com/images/search?scope=images&pq=boy&sc=8-3&sp=-1&sk=&cvid=36DB1C9A081B4DAEB71B8161E26E8E6C&q=boy&qft=+filterui:photo-transparent&FORM=R5IR25
Is that possible to do that? Any suggestion would be highly appreciated.