Fast schemes for compressed-domain image size change, are proposed. Fast Winograd DCTs are applied to resizing images by a factor of two to one. First, we speed up the DCT domain downsampling scheme which uses the bilinear interpolation. Then, we speed up other image resizing schemes which use DCT lowpass truncated approximations. The schemes proposed here reduce the computational complexities significantly, while there is no difference in the overall quality of the images compared to previous works.
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Do Nyeon KIM, Yoonsik CHOE, K.R. RAO, "Efficient Schemes for Compressed-Domain Image Resizing" in IEICE TRANSACTIONS on Fundamentals,
vol. E92-A, no. 2, pp. 556-562, February 2009, doi: 10.1587/transfun.E92.A.556.
Abstract: Fast schemes for compressed-domain image size change, are proposed. Fast Winograd DCTs are applied to resizing images by a factor of two to one. First, we speed up the DCT domain downsampling scheme which uses the bilinear interpolation. Then, we speed up other image resizing schemes which use DCT lowpass truncated approximations. The schemes proposed here reduce the computational complexities significantly, while there is no difference in the overall quality of the images compared to previous works.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E92.A.556/_p
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@ARTICLE{e92-a_2_556,
author={Do Nyeon KIM, Yoonsik CHOE, K.R. RAO, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Efficient Schemes for Compressed-Domain Image Resizing},
year={2009},
volume={E92-A},
number={2},
pages={556-562},
abstract={Fast schemes for compressed-domain image size change, are proposed. Fast Winograd DCTs are applied to resizing images by a factor of two to one. First, we speed up the DCT domain downsampling scheme which uses the bilinear interpolation. Then, we speed up other image resizing schemes which use DCT lowpass truncated approximations. The schemes proposed here reduce the computational complexities significantly, while there is no difference in the overall quality of the images compared to previous works.},
keywords={},
doi={10.1587/transfun.E92.A.556},
ISSN={1745-1337},
month={February},}
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TY - JOUR
TI - Efficient Schemes for Compressed-Domain Image Resizing
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 556
EP - 562
AU - Do Nyeon KIM
AU - Yoonsik CHOE
AU - K.R. RAO
PY - 2009
DO - 10.1587/transfun.E92.A.556
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E92-A
IS - 2
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - February 2009
AB - Fast schemes for compressed-domain image size change, are proposed. Fast Winograd DCTs are applied to resizing images by a factor of two to one. First, we speed up the DCT domain downsampling scheme which uses the bilinear interpolation. Then, we speed up other image resizing schemes which use DCT lowpass truncated approximations. The schemes proposed here reduce the computational complexities significantly, while there is no difference in the overall quality of the images compared to previous works.
ER -