no code implementations • 31 Oct 2022 • Artyom M. Grigoryan, Sos S. Agaian, Karen Panetta
The new data representation is demonstrated on multiple illustrative examples for quantum edge detection, gradients, and convolution.
no code implementations • 10 May 2022 • Artyom M. Grigoryan, Sos S. Agaian
This paper describes an effective method of calculating the correlation function of signals and color images in quaternion algebra.
no code implementations • 27 Feb 2021 • Artyom M. Grigoryan, Sos S. Agaian
We believe that framework might be very useful in the prediction of color palletes of the Renaissance oil artworks and other artworks.
no code implementations • 20 Jul 2018 • Artyom M. Grigoryan, Aparna John, Sos S. Agaian
A novel method of color image enhancement is proposed, in which three or four color channels of the image are transformed to one channel 2-D grayscale image.
no code implementations • 20 Jul 2018 • Artyom M. Grigoryan, Aparna John, Sos S. Agaian
This new method is referred as the alpha-rooting method of color image enhancement by the two-dimensional quaternion discrete Fourier transform (2-D QDFT) followed by a spatial transformation.
no code implementations • 15 Jul 2017 • Artyom M. Grigoryan, Aparna John, Sos S. Agaian
This paper proposes an implementation of the quaternion approach of enhancement algorithm for enhancing color images and is referred as the modified alpha-rooting by the two-dimensional quaternion discrete Fourier transform (2-D QDFT).