Abstract
Despite the practical importance of photographic composition for improving or assessing the aesthetical quality of photographs, only a few simple composition rules have been considered for its classification. In this work, we propose novel techniques to classify photographic composition rules of outdoor scenes and detect dominant geometric elements, called composition elements, for each composition class. Specifically, we first categorize composition rules of outdoor photographs into nine classes: RoT, center, horizontal, symmetric, diagonal, curved, vertical, triangle, and pattern. Then, we develop a photographic composition classification algorithm using a convolutional neural network (CNN). To train the CNN, we construct a photographic composition database, which is publicly available. Finally, for each composition class, we propose an effective scheme to locate composition elements, i.e., bounding boxes for main subjects, leading lines, axes of symmetry, triangles, and sky regions. Extensive experimental results demonstrate that the proposed algorithm classifies composition classes reliably and detects composition elements accurately.
Original language | English |
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Pages (from-to) | 91-105 |
Number of pages | 15 |
Journal | Journal of Visual Communication and Image Representation |
Volume | 55 |
DOIs | |
Publication status | Published - 2018 Aug |
Bibliographical note
Funding Information:This work was supported partly by the Ministry of Science and ICT (MSIT), Korea, under the Information Technology Research Center (ITRC) support program (IITP-2018-2016-0-00464) supervised by the Institute for Information & communications Technology Promotion, and the National Research Foundations of Korea (NRF) grant funded by the Korea government (MSIP) (Nos. NRF-2015R1A2A1A10055037 and NRF-2018R1A2B3003896).
Funding Information:
This work was supported partly by the Ministry of Science and ICT (MSIT), Korea, under the Information Technology Research Center (ITRC) support program ( IITP-2018-2016-0-00464 ) supervised by the Institute for Information & communications Technology Promotion , and the National Research Foundations of Korea (NRF) grant funded by the Korea government (MSIP) (Nos. NRF-2015R1A2A1A10055037 and NRF-2018R1A2B3003896 ).
Publisher Copyright:
© 2018 Elsevier Inc.
Keywords
- Composition element detection
- Geometric element detection
- Image classification
- Photographic composition
- Rule of thirds
- Sky detection
ASJC Scopus subject areas
- Signal Processing
- Media Technology
- Computer Vision and Pattern Recognition
- Electrical and Electronic Engineering