JPS56110185A - Interpolation system in digital image processing - Google Patents
Interpolation system in digital image processingInfo
- Publication number
- JPS56110185A JPS56110185A JP1290580A JP1290580A JPS56110185A JP S56110185 A JPS56110185 A JP S56110185A JP 1290580 A JP1290580 A JP 1290580A JP 1290580 A JP1290580 A JP 1290580A JP S56110185 A JPS56110185 A JP S56110185A
- Authority
- JP
- Japan
- Prior art keywords
- levels
- picture element
- densities
- element densities
- scanning direction
- 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
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 230000015654 memory Effects 0.000 abstract 2
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformations in the plane of the image
- G06T3/40—Scaling of whole images or parts thereof, e.g. expanding or contracting
- G06T3/4007—Scaling of whole images or parts thereof, e.g. expanding or contracting based on interpolation, e.g. bilinear interpolation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
- G06F17/17—Function evaluation by approximation methods, e.g. inter- or extrapolation, smoothing, least mean square method
- G06F17/175—Function evaluation by approximation methods, e.g. inter- or extrapolation, smoothing, least mean square method of multidimensional data
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Data Mining & Analysis (AREA)
- Algebra (AREA)
- Databases & Information Systems (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Image Processing (AREA)
- Editing Of Facsimile Originals (AREA)
Abstract
PURPOSE:To decrease memories and processing circuits by dividing the image densities of input picture elements A, B in a main scanning direction or sub- scanning direction to 3 levels, 0, 1, 2, incorporating two levels, 0, 1 for the picture element densities of output picture elements (a), (b), and specifically converting these to twice picture element densities. CONSTITUTION:At the time of interpolation performing digital image processing, the picture element densities of the input picture elements A, B in the main or sub- scanning direction are segmented to 3 levels, 0, 1, 2 and the picture element densities of output picture elements (a), (b) are made into two levels, 0, 1 and are converted to twice picture element densities according to conversion logic of 1-9. This conversion circuit is constituted of two RAMs, an FF circuit, a controller, an ROM and logic circuits, whereby memories and processing circuits are reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1290580A JPS56110185A (en) | 1980-02-05 | 1980-02-05 | Interpolation system in digital image processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1290580A JPS56110185A (en) | 1980-02-05 | 1980-02-05 | Interpolation system in digital image processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56110185A true JPS56110185A (en) | 1981-09-01 |
Family
ID=11818371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1290580A Pending JPS56110185A (en) | 1980-02-05 | 1980-02-05 | Interpolation system in digital image processing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56110185A (en) |
-
1980
- 1980-02-05 JP JP1290580A patent/JPS56110185A/en active Pending
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