JPS6471376A - Multi-value picture encoder - Google Patents

Multi-value picture encoder

Info

Publication number
JPS6471376A
JPS6471376A JP62229011A JP22901187A JPS6471376A JP S6471376 A JPS6471376 A JP S6471376A JP 62229011 A JP62229011 A JP 62229011A JP 22901187 A JP22901187 A JP 22901187A JP S6471376 A JPS6471376 A JP S6471376A
Authority
JP
Japan
Prior art keywords
block
frequency
data
many
frequency parts
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
JP62229011A
Other languages
Japanese (ja)
Inventor
Takumi Hasebe
Norio Aoki
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP62229011A priority Critical patent/JPS6471376A/en
Publication of JPS6471376A publication Critical patent/JPS6471376A/en
Pending legal-status Critical Current

Links

Landscapes

  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Image Processing (AREA)

Abstract

PURPOSE:To efficiently attain encoding with little picture deterioration by performing a dividing operation to a block with many high frequency distributions and a uniting operation to the plural adjoining blocks with many low frequency distributions. CONSTITUTION:Picture data in a picture memory 1 are read at every block, and based on the result of the frequency distribution, they are classified into the block with many low-frequency parts and the block with many high-frequency parts. When the plural adjoining blocks are those with low-frequency parts, they are sub-sampled in order to obtain the picture data for one block. For the block with many high-frequency parts, when the block is divided, the divided block is interpolated with the data and made into the data for one block, the block is converted to the block with many low-frequency parts. That is, since the frequency distribution of the data in the block after the dividing and uniting processings are composed of approximately the same element, quantizing and the encoding can be performed with approximately the same operation in the entire blocks.
JP62229011A 1987-09-11 1987-09-11 Multi-value picture encoder Pending JPS6471376A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62229011A JPS6471376A (en) 1987-09-11 1987-09-11 Multi-value picture encoder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62229011A JPS6471376A (en) 1987-09-11 1987-09-11 Multi-value picture encoder

Publications (1)

Publication Number Publication Date
JPS6471376A true JPS6471376A (en) 1989-03-16

Family

ID=16885359

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62229011A Pending JPS6471376A (en) 1987-09-11 1987-09-11 Multi-value picture encoder

Country Status (1)

Country Link
JP (1) JPS6471376A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS622721A (en) * 1985-06-28 1987-01-08 Nec Corp Coding and decoding device for picture signal

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS622721A (en) * 1985-06-28 1987-01-08 Nec Corp Coding and decoding device for picture signal

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