| タイトル | Image Data Compression Having Minimum Perceptual Error |
| 本文（外部サイト） | http://hdl.handle.net/2060/19970018161 |
| 著者（英） | Watson, Andrew B. |
| 著者所属（英） | NASA Ames Research Center |
| 発行日 | 1997-05-13 |
| 言語 | eng |
| 内容記述 | A method is presented for performing color or grayscale image compression that eliminates redundant and invisible image components. The image compression uses a Discrete Cosine Transform (DCT) and each DCT coefficient yielded by the transform is quantized by an entry in a quantization matrix which determines the perceived image quality and the bit rate of the image being compressed. The quantization matrix comprises visual masking by luminance and contrast technique all resulting in a minimum perceptual error for any given bit rate, or minimum bit rate for a given perceptual error. |
| NASA分類 | Computer Programming and Software |
| レポートNO | 97N20237 |
| 権利 | No Copyright |
