6 citations · 7 across the 4 of their papers we have counts for
4 papers
A Novel Color Image Enhancement Method by the Transformation of Color Images to 2-D Grayscale Images
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. This paper describes d…
Alpha-rooting color image enhancement method by two-side 2-D quaternion discrete Fourier transform followed by spatial transformation
Artyom M. Grigoryan, Aparna John, Sos S. Agaian
In this paper a quaternion approach of enhancement method is proposed in which color in the image is considered as a single entity. This new method is referred as the alpha-rooting…
Nonparametrically estimating dynamic bivariate correlation using visibility graph algorithm
Aparna John, Toshikazu Ikuta, Janina D Ferbinteanu +1
Dynamic conditional correlation (DCC) is a method that estimates the correlation between two time series across time. Although used primarily in finance so far, DCC has been propos…
Modified Alpha-Rooting Color Image Enhancement Method On The Two-Side 2-D Quaternion Discrete Fourier Transform And The 2-D Discrete Fourier Transform
Artyom M. Grigoryan, Aparna John, Sos S. Agaian
Color in an image is resolved into 3 or 4 color components and 2-Dimages of these components are stored in separate channels. Most of the color image enhancement algorithms are app…