CA2300326A1 - Image data compression, decompression and display device - Google Patents
Image data compression, decompression and display device Download PDFInfo
- Publication number
- CA2300326A1 CA2300326A1 CA002300326A CA2300326A CA2300326A1 CA 2300326 A1 CA2300326 A1 CA 2300326A1 CA 002300326 A CA002300326 A CA 002300326A CA 2300326 A CA2300326 A CA 2300326A CA 2300326 A1 CA2300326 A1 CA 2300326A1
- Authority
- CA
- Canada
- Prior art keywords
- image data
- quantization levels
- value
- prescribed region
- minimal
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T9/00—Image coding
- G06T9/005—Statistical coding, e.g. Huffman, run length coding
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Compression Of Band Width Or Redundancy In Fax (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
An image data compressing device includes: a maximal value extracting unit and a minimal value extracting unit that respectively extract a maximal value anal a minimal value from pixel values in a prescribed region of image data; a level decision unit that determines quantization levels of the pixel values in the prescribed region based on the maximal and minimal values extracted; and a comparison unit that compares the images data with the quantization levels and outputs quantized data. Since the comparison unit quantizes the pixel value in the prescribed region by comparing the image data with the quantization levels, it is possible to compress the image data with a simple configuration.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11-263627 | 1999-09-17 | ||
JP26362799A JP2001086500A (en) | 1999-09-17 | 1999-09-17 | Image data compressing device, image data extending device, device and method for displaying image using the same |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2300326A1 true CA2300326A1 (en) | 2001-03-17 |
CA2300326C CA2300326C (en) | 2003-02-18 |
Family
ID=17392152
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2300326 Expired - Fee Related CA2300326C (en) | 1999-09-17 | 2000-03-09 | Image data compression, decompression and display device |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP2001086500A (en) |
CA (1) | CA2300326C (en) |
DE (1) | DE10021819A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105631905A (en) * | 2014-10-29 | 2016-06-01 | 新相微电子(开曼)有限公司 | Image compression algorithm and image compression control device for TFT-LCD driving IC |
-
1999
- 1999-09-17 JP JP26362799A patent/JP2001086500A/en not_active Withdrawn
-
2000
- 2000-03-09 CA CA 2300326 patent/CA2300326C/en not_active Expired - Fee Related
- 2000-05-04 DE DE2000121819 patent/DE10021819A1/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105631905A (en) * | 2014-10-29 | 2016-06-01 | 新相微电子(开曼)有限公司 | Image compression algorithm and image compression control device for TFT-LCD driving IC |
Also Published As
Publication number | Publication date |
---|---|
JP2001086500A (en) | 2001-03-30 |
CA2300326C (en) | 2003-02-18 |
DE10021819A1 (en) | 2001-06-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6757438B2 (en) | Method and apparatus for video compression using microwavelets | |
US6526174B1 (en) | Method and apparatus for video compression using block and wavelet techniques | |
US8902992B2 (en) | Decoder for selectively decoding predetermined data units from a coded bit stream | |
EP1162826A3 (en) | Adaptive image data compression | |
CN111275628A (en) | Image signal conversion processing method and device and terminal equipment | |
US7194128B1 (en) | Data compression using principal components transformation | |
EP2506577A3 (en) | Adaptive image coding considering the chroma format | |
US20080144951A1 (en) | System and method for effectively performing an adaptive encoding procedure | |
CA2244809A1 (en) | Facsimile-based video compression method and system | |
EP0986270A3 (en) | Picture quality measurement using blockiness | |
Kumar et al. | Human visual system based enhanced AMBTC for color image compression using interpolation | |
US20080085058A1 (en) | Color image coding using inter-color correlation | |
US6891892B2 (en) | MPEG-2 decoder with an embedded contrast enhancement function and methods therefor | |
US20020191695A1 (en) | Interframe encoding method and apparatus | |
KR960036704A (en) | Image coding method and device considering object boundary | |
CA2300326A1 (en) | Image data compression, decompression and display device | |
US20100322305A1 (en) | Arbitrary-resolution, extreme-quality video codec | |
Huang et al. | Compression of color facial images using feature correction two-stage vector quantization | |
US7146055B2 (en) | Image processing decompression apparatus and method of using same different scaling algorithms simultaneously | |
Tseng et al. | A very low bit rate image compressor using transformed classified vector quantization | |
WO2001084848A3 (en) | Loss less image compression | |
WO2003088658A3 (en) | Multi-phase processing for real-time display of a compressed video bitstream | |
CN111491166A (en) | Dynamic compression system and method based on content analysis | |
TWI255609B (en) | Image compression method with high compression rate | |
CN114339226B (en) | Method, device and medium for improving smoothness of picture |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |