My raw data sets are images round 4000 x 3000 resolution. This raise Dataloader bottleneck as CPU usage is always 100% trying to resize image(my item resize setting is 512*512). My current approach is to pre-resize the image to 512 x n or n x 512 according to height:width ratio.
Is this approach appropriate? Still doing some trials to see how the loss of information affects the metrics performance.