Digital image sharpening using Riesz fractional order derivative and discrete hartley transform.
Chien-Cheng TsengSu-Ling LeePublished in: APCCAS (2014)
Keyphrases
- hartley transform
- fractional order
- image sharpening
- fourier transform
- differential equations
- discrete cosine transform
- feedback control
- color images
- dynamical systems
- pid controller
- digital camera
- transfer function
- fast fourier transform
- closed loop
- row column
- diffusion equation
- discrete fourier transform
- zero crossing
- digital imaging
- adobe photoshop
- frequency domain
- differential evolution
- adaptive control
- real time
- objective function