期刊
出版社
IEEE
DOI: 10.1109/ispacs48206.2019.8986361
关键词
JPEG; compression artifacts removal; convolutional neural network; residual network; dilated convolution
资金
- Ministry of Science and Technology [MOST 108-2221-E-027-034-]
In this work, we propose a deep learning-based method to improve the quality of JPEG images. Our proposed network predicts the compression loss of the JPEG image for compensating and restoring the image quality. To solve the color bleeding artifacts often found in JPEG image, our network considering it in our model and objective functions to restore the color channels. Our network is much lighter by using fewer parameters compared to other work, whereas our method can still provide satisfactory and well-restored images for JPEG images as demonstrated in our experiments. Even with the additional handling on the color channels, the number of parameters in our network model is still kept low around 224k.
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