This invention provides an efficient image processing apparatus having merits as the handiness and visibility of paper and the multi-functionality of a computer, enabling trial and error with paper media without capturing all images previously. The apparatus comprises an image capturing unit for electronically capturing paper images by a photo-sensor; an image editing unit for editing such as clipping of partial image or scaling; a user interface unit for receiving user's commands regarding the image editing; an image memory unit for storing; and an image display unit for displaying the images in the image memory unit. An image displaying function is provided on a transparent plane. Photo-sensors are on the plane, and image capturing unit and image display unit are integrated to form an image capturing and display unit. A user gains an operability compatible with human instinct, ignoring a difference between paper and electronic medium.