Image processing system

An image processing system comprising:

• an image memory section having an image memory for digitally storing image data, a memory controller for controlling a read/write operation of the image data with respect to said image memory, and an image processor for performing a selected type of image processing operation for the image data stored in said image memory;
• a control computer having a central processing unit and a main memory connected to said central processing unit, said main memory having a predetermined size of a partial memory area, which is presecured as a special-purpose memory area for storing image data transferred between said control computer and said image memory section and is separated from the remaining memory area of said main memory;
• an interface connected between said central processing unit and said image memory section;
• first data bus means for connecting said central processing unit to said image memory section through said interface;
• and
• second data bus means for directly connecting said special-purpose memory area to said image memory section and allowing said special-purpose memory area to directly store, without involving said interface, only image data randomly read out from said image memory under the control of said central processing unit, whereby said control computer is able to directly access said image memory through said second data bus means without involving said interface.