Name
Title | ||
|---|---|---|
Arbitrary-ratio image resizing using fast DCT of composite length for DCT-based transcoder |
Abstract | ||
|---|---|---|
We propose a fast arbitrary-ratio image resizing method for transcoding of the compressed images. The downsizing process in the discrete cosine transform (DCT) domain can be implemented by truncating high-frequency coefficients, whereas the upsizing process is implemented in the DCT domain by padding zero coefficients to the high-frequency part. The proposed method combines a fast inverse and forward DCT of composite length for arbitrary-ratio upsizing or downsizing. According to the resizing ratio, truncating the high-frequency coefficients and padding zeros are appropriately considered by combining the inverse DCT and forward DCT. The proposed method shows a good peak signal-to-noise ratio and less computational complexity compared with the spatial-domain and previous DCT-domain image resizing methods. |
Year | DOI | Venue |
|---|---|---|
2006 | 10.1109/TIP.2005.863117 | IEEE Transactions on Image Processing |
Keywords | Field | DocType |
high frequency,transcoding,data compression,discrete cosine transform,peak signal to noise ratio,computational complexity,image reconstruction | Iterative reconstruction,Transcoding,Inverse,Computer vision,Computer science,Discrete cosine transform,Image processing,Artificial intelligence,Data compression,Padding,Computational complexity theory | Journal |
Volume | Issue | ISSN |
15 | 2 | 1057-7149 |
Citations | PageRank | References |
15 | 0.81 | 9 |
Authors | ||
2 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Young Seo Park | 1 | 35 | 20.56 |
| Hyun Wook Park | 2 | 495 | 54.79 |