Image zooming using a multi-layer neural network

Hassanpour, H., Nowrozian, N., AlyanNezhadi, M. M. and Samadiani, N. 2018, Image zooming using a multi-layer neural network, Computer journal, vol. 61, no. 11, pp. 1737-1748, doi: 10.1093/comjnl/bxy092.

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Title Image zooming using a multi-layer neural network
Author(s) Hassanpour, H.
Nowrozian, N.
AlyanNezhadi, M. M.
Samadiani, N.
Journal name Computer journal
Volume number 61
Issue number 11
Start page 1737
End page 1748
Total pages 12
Publisher Oxford University Press
Place of publication Oxford, Eng.
Publication date 2018-11
ISSN 0010-4620
Keyword(s) Science & Technology
Computer Science, Hardware & Architecture
Computer Science, Information Systems
Computer Science, Software Engineering
Computer Science, Theory & Methods
Computer Science
image zooming
neural network
multi-layer perceptron
interpolation method
Summary This paper presents a novel image zooming method using a neural network. The main issue in any image zooming algorithms is to preserve the main structure of the image. The proposed method uses a multi-layer perceptron for image zooming. For zooming an image, the neural network is initially trained using the same image down-sampled by a factor of 2. In training the network, individual pixels along with their neighborhoods from the down-sampled image and the corresponding pixels in a 2 × 2 block from the original image are used as the input and output data, respectively. The trained neural network is then used to enlarge the original image by a factor of 2. The obtained image can be re-applied to the neural network for further enlarging. The blurring and staircase effects are faint in the zoomed image, and the edges are preserved. Besides, the proposed method is simple and easy to implement. The evaluation results on different images show that the proposed method is more efficient than other recently developed image zooming methods, particularly for high magnification factors.
Language eng
DOI 10.1093/comjnl/bxy092
Indigenous content off
Field of Research 08 Information and Computing Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
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