Wavelet-based perceptually lossless coding of R-G-B images

Francescomaria Marino, Tinku Acharya, Lina Karam

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

A perceptually-lossless wavelet-based image compression algorithm and architecture working directly in the R-G-B color domain is proposed. Even though the highest compression ratios are achievable in the Luminance-Chrominance domain, image sensors generate data commonly in a subsampled R-G-B format. Many real-time applications (e.g., a low cost digital camera) prohibit the on-line conversion of data from R-G-B format to any other format. Therefore, in these applications, it is desirable to apply the compression directly on R-G-B data. Our compression scheme is based on derived perceptually-lossless quantizing thresholds, and can be mapped into an ASIC yielding very high throughput. Examples illustrating the performance of the coder are presented.

Original languageEnglish (US)
Pages (from-to)117-134
Number of pages18
JournalIntegrated Computer-Aided Engineering
Volume7
Issue number2
StatePublished - 2000

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Wavelets
Compression
Coding
Digital cameras
Application specific integrated circuits
Image compression
Image sensors
Luminance
Image Sensor
Digital Camera
Throughput
Image Compression
Color
High Throughput
Real-time
Costs
Architecture

ASJC Scopus subject areas

  • Artificial Intelligence
  • Computational Theory and Mathematics
  • Computer Science Applications
  • Engineering (miscellaneous)

Cite this

Wavelet-based perceptually lossless coding of R-G-B images. / Marino, Francescomaria; Acharya, Tinku; Karam, Lina.

In: Integrated Computer-Aided Engineering, Vol. 7, No. 2, 2000, p. 117-134.

Research output: Contribution to journalArticle

Marino, Francescomaria ; Acharya, Tinku ; Karam, Lina. / Wavelet-based perceptually lossless coding of R-G-B images. In: Integrated Computer-Aided Engineering. 2000 ; Vol. 7, No. 2. pp. 117-134.
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