hi, i am a bit confused with the above ..

from my understanding, (and using 3000 X 2000px as a full size image)

uncropped would be to show the image at full size (3000 X 2000 px)

100% crop would be to crop an image at it's full size.. and cropping it would effectively downsize the image and centered on the particular area of interest (3000 X 2000 px --> perhaps 1000 X 800px)

50% crop means what?

does it mean a 3000 x 2000 px pic is resized to 1500 X 1000px , and cropped from there (1500 X 1000 px --> perhaps 600 X 400px)