An easy to use interface for cropping, rotating and on/off control for
image enhancement. The user can choose different output sizes (width,
height, resolution) from a list. When dragging the crop handles the
interface will tell the user when the size of the selected image is no
longer sufficient and stop them from selecting an area of the
image which is to small. The user can be allowed to upsample their images to a certain
percent. They are made aware when the upsampling is active and the
current upsampling percentage setting.