1. An image processing system comprising: an image pickup apparatus for picking up an image of a subject; and an image reproducing apparatus for reproducing the image picked up by said image pickup apparatus; wherein said image pickup apparatus includes an image pickup unit for obtaining an image by image pickup, an image pickup rate controlling unit for controlling an image pickup rate of said image pickup unit, a line reducing unit for removing a plurality of lines from said image obtained by the image pickup, and an image storing unit for storing a reduced image in which said plurality of lines are removed on a storage medium, and said image reproducing apparatus includes an image reading unit for reading the image stored on said storage medium, an up-converter for up-converting the read said image, and a reproduction displaying unit for displaying said up-converted image.