Patent ID: 6246795
Filing Date: 2001-06-12
Classification: G06T

Abstract:
An image processing apparatus which generates an image in units of bands on the basis of input data and outputs the image, comprising:at least two compression/expansion means for compressing image data or expanding compressed data;designation means for designating a compression mode or an expansion mode for each of said compression/expansion means;setting means for dynamically connecting said compression/expansion means in parallel or in series;logical operation means, substantially arranged at an intermediate position between said compression/expansion means connected in series by said setting means, for logically synthesizing data from an upstream compression/expansion means with desired data and supplying the synthesized data to a downstream compression/expansion means; andcontrol means for controlling said designation means, said setting means, and said logical operation means such that when the image data is to be simply compressed/expanded, said setting means connects said compression/expansion means in parallel, and said compression/expansion means parallelly compress/expand the image data, and when image data which has temporarily been compressed is to be edited, said setting means connects said compression/expansion means in series, said upstream compression/expansion means is set in an expansion mode and said downstream compression/expansion means is set in a compression mode, and said logical operation means logically synthesizes the image data to generate compressed image data.