Abstract
The authenticity and reliability of digital images have become one of the major concerns recently due to the ease in manipulating and modifying these images. Similar manipulation in crowded images gives rise to the false crowd, where a person or group of persons is copied and pasted in the same image. Thus, the detection of such false crowds is the focus of current research. In this paper, false crowd detection in forged images is carried out using modified and improved PatchMatch algorithm which can even detect multiple copies of the same instance. To sperate humans from non-human objects a human detection algorithm is used in the post-processing phase. A benchmark database consisting of false crowd images has also been developed. Experimental results confirm that the technique is capable of detecting the false crowds successfully and even robust for multiple cloning problem.
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Javid, R., Riaz, M.M., Ghafoor, A., Iqbal, N. (2020). Efficient PatchMatch Algorithm to Detect False Crowd in Digitally Forged Images. In: Bajwa, I., Sibalija, T., Jawawi, D. (eds) Intelligent Technologies and Applications. INTAP 2019. Communications in Computer and Information Science, vol 1198. Springer, Singapore. https://doi.org/10.1007/978-981-15-5232-8_53
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