BI Built-in AI image resolution

CrazyAsYou

Getting comfortable
Mar 28, 2018
325
331
England, Near Sheffield
Can anyone tell me what the resolution is for image(s) that Blue Iris will pass to its internal AI - I only use sub streams from my cams for motion and AI and would like to align the sub streams source feed from the camera as close as is possible to what BI will use for internal AI processing. I assume it's going to be something such as 640 x 480. I also assume doing this will reduce/limit the need for BI to resize images.
 
All of the models are trained for an input image with a resolution of 640 x 640. The best sub stream setting are 704 x 480 (D1) or 640 x 480 (VGA), I am using 704 x 480 (D1) which closely matches the aspect ratio of main stream