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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Thyagarajan, K.S. Viswanathan, Mahesh |
| Copyright Year | 1986 |
| Description | Author affiliation: Department of Electrical and Computer Engineering, San Diego State University, San Diego, CA 92182 (Thyagarajan, K.S.; Viswanathan, Mahesh) |
| Abstract | This paper discusses the design of a tree-search matrix quantizer to be used to encode homomorphically processed images. An image obtained by optical means is modeled as a product of the illumtination and reflectance components. The illumination part is lowpass and the reflectance part which reveals the edge and texture details, is highpass. The homomorphic system as applied to image processing consists of a logarithmic point transformation followed by linear filtering. Homomorphic processing achieves a simultaneous dynamic range reduction and contrast enhancenment. A matrix quantizer operating on such processed images is shown to achieve bit rates as low as 0.16 bpp with acceptable quality. |
| File Size | 1653843 |
| File Format | |
| DOI | 10.1109/MILCOM.1986.4805875 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1986-10-05 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Quantization Distortion measurement Pixel Reflectivity Image coding Hardware Lighting Bit rate Image storage Image reconstruction |
| Content Type | Text |
| Resource Type | Article |
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