JPS5492114A - Picture compressing and restoring system - Google Patents

Picture compressing and restoring system

Info

Publication number
JPS5492114A
JPS5492114A JP16029177A JP16029177A JPS5492114A JP S5492114 A JPS5492114 A JP S5492114A JP 16029177 A JP16029177 A JP 16029177A JP 16029177 A JP16029177 A JP 16029177A JP S5492114 A JPS5492114 A JP S5492114A
Authority
JP
Japan
Prior art keywords
information
byte
transmitted
pattern
flag
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP16029177A
Other languages
Japanese (ja)
Inventor
Michiaki Nakanishi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP16029177A priority Critical patent/JPS5492114A/en
Publication of JPS5492114A publication Critical patent/JPS5492114A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To increase the information compression rate by transmitting only the changed block pattern information in the block information and transmitting the flag information which is a block unit picture map.
CONSTITUTION: In case where there is a black and white pattern in picture (a), one scanning line is divided into each plural unit (8 bits = 1 byte), thus dividing into a total of 256(bytes) and forming a group of blocks. With the picture(a), the first scanning line transmits the total pattern information of 256 parts and register them, but in case of the second scanning line, the first byte, second byte,......are all in the same pattern and the pattern information is not transmitted and, therefore, the first byte "0", second byte "0"......are transmitted as the flag information (b) and registered. The compressed pattern information and flag information are transmitted as a pair, but in the first part of (a), only the pattern information of numericals (1)-(4) located outside of the left column is transmitted while at the same time (1) is transmitted as the flag and the register is changed.
COPYRIGHT: (C)1979,JPO&Japio
JP16029177A 1977-12-29 1977-12-29 Picture compressing and restoring system Pending JPS5492114A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16029177A JPS5492114A (en) 1977-12-29 1977-12-29 Picture compressing and restoring system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16029177A JPS5492114A (en) 1977-12-29 1977-12-29 Picture compressing and restoring system

Publications (1)

Publication Number Publication Date
JPS5492114A true JPS5492114A (en) 1979-07-21

Family

ID=15711797

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16029177A Pending JPS5492114A (en) 1977-12-29 1977-12-29 Picture compressing and restoring system

Country Status (1)

Country Link
JP (1) JPS5492114A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09149263A (en) * 1995-11-22 1997-06-06 Nec Corp Prediction coder

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5042719A (en) * 1973-08-20 1975-04-18

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5042719A (en) * 1973-08-20 1975-04-18

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09149263A (en) * 1995-11-22 1997-06-06 Nec Corp Prediction coder

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