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arXiv · 2607.15744

Grover's algorithm for image edge detection

Pulak Ranjan Giri·Kazuhiro Saito
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Abstract

Grover's algorithm is one of the most significant quantum algorithms, enabling the search for a marked element in an unsorted database quadratically faster than classical search algorithms. We utilize Groves's algorithm to detect the edges of a digital image faster than any classical edge detection methods. The high success probability of our method in detecting image edges, compared to most existing quantum edge detection methods, makes it a more suitable candidate for use in the presence of noise on current quantum devices. We implemented our model for the $2\times 2$ blocks of the image using a two-qubit Qiskit circuit with the QASM simulator and the noisy IBM Sydney(fake) device, making it suitable for most of the current NISQ devices.

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Pulak Ranjan Giri, Kazuhiro Saito. 2026-07-17. Grover's algorithm for image edge detection. https://doi.org/10.1109/qce65121.2025.10405

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