JPS6430367A - Image density data decoding method - Google Patents
Image density data decoding methodInfo
- Publication number
- JPS6430367A JPS6430367A JP62184670A JP18467087A JPS6430367A JP S6430367 A JPS6430367 A JP S6430367A JP 62184670 A JP62184670 A JP 62184670A JP 18467087 A JP18467087 A JP 18467087A JP S6430367 A JPS6430367 A JP S6430367A
- Authority
- JP
- Japan
- Prior art keywords
- blocks
- data
- processings
- density data
- necessary
- 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
Links
Abstract
PURPOSE:To attain an image density data decoding data in which block noise is made unnoticeable by expressing a boundary between neighboring two blocks otherwise than with a straight line. CONSTITUTION:A half-tonal image is divided into blocks consisting of plural picture elements, picture element density data in said blocks are approximated with less data, coded data generated by coding said data is received and decoded; such is the titled method, in which, the boundary between the neighboring blocks is not expressed with a straight line. As a result, the processings can be executed only with a decoder, and no special processings are necessary on the coder side. Therefore, the amount of coding does not increase, the algorithm is extremely simple, hence no complicated arithmetic operation is necessary, and the titled method can by easily attained with devices. Also, the time necessary for the processings does not increase much, and block noises that may appear both in the vertical and the horizontal directions can be reduced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62184670A JPS6430367A (en) | 1987-07-25 | 1987-07-25 | Image density data decoding method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62184670A JPS6430367A (en) | 1987-07-25 | 1987-07-25 | Image density data decoding method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6430367A true JPS6430367A (en) | 1989-02-01 |
Family
ID=16157307
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62184670A Pending JPS6430367A (en) | 1987-07-25 | 1987-07-25 | Image density data decoding method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6430367A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5658408A (en) * | 1992-04-21 | 1997-08-19 | Branson Ultrasonics Corporation | Method for processing workpieces by ultrasonic energy |
US5855706A (en) * | 1992-04-21 | 1999-01-05 | Branson Ultrasonics Corporation | Simultaneous amplitude and force profiling during ultrasonic welding of thermoplastic workpieces |
-
1987
- 1987-07-25 JP JP62184670A patent/JPS6430367A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5658408A (en) * | 1992-04-21 | 1997-08-19 | Branson Ultrasonics Corporation | Method for processing workpieces by ultrasonic energy |
US5846377A (en) * | 1992-04-21 | 1998-12-08 | Branson Ultrasonics Corporation | Method for processing workpieces by ultrasonic energy |
US5855706A (en) * | 1992-04-21 | 1999-01-05 | Branson Ultrasonics Corporation | Simultaneous amplitude and force profiling during ultrasonic welding of thermoplastic workpieces |
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