ARITHMETIC PROCESSING SYSTEM FOR PICTURE DATA

摘要

PURPOSE:To shorten the arithmetic processing time by reading only the new original picture element data out of a video memory among plural original picture element data used for calculation of a certain process picture element data and writing the read-out picture element data into a high-speed arithmetic access memory. CONSTITUTION:The video signals received from an input terminal 9 are written into a video memory 6 via an A/D converter 10. Then the video signals are read out of the memory 6 are projected on a monitor picture receiver 8 via a D/A converter 7. The still picture data is written into the memory 6 and magnified or reduced under the control of a computer 1 via a buffer memory 14 and a digital signal processing circuit 15. Then the magnified or reduced picture data is monitored by the receiver 8 and also inputted to a communication process circuit/interface 12 and sent to another still picture communication terminal via a transmission line 13 after a communication process. The process circuit 12 reads the new original picture element data out of the memory 6 except those original picture element data used for calculation of the process picture element data preceding the previous one. The picture element data read out of the memory 6 is written into the memory 14 and undergoes an arithmetic process.