Results 81 to 90 of about 279,749 (138)

Features Classification Forest: A Novel Development that is Adaptable to Robust Blind Watermarking Techniques [PDF]

open access: yes, 2018
A novel watermarking scheme is proposed that could substantially improve current watermarking techniques. This scheme exploits the features of micro images of watermarks to build association rules and embeds the rules into a host image instead of the bit
Shen, Jau-Ji   +2 more
core   +1 more source

Techniques in image restoration and enhancement [PDF]

open access: yes, 1975
Includes bibliographical references.Image processing in its broad sense pervades many areas but it is convenient to group it into three main sections, viz: image coding, usually for image transmission over telecommunication links; pattern recognition for
Hepburn, John Stuart Andrew
core  

A brief summary of digital image enhancement [PDF]

open access: yes
Digital image processing is a modern branch of computer application. With the help of computers the visual quality of original images which were blurred by external interferences or optical transfer function of transmission channel can be improved so ...
Qiang, Gu Yun
core  

Canopy imaging spectroscopy reveals a stepwise redshifted energy redistribution in the antenna under drought stress

open access: yesScientific Reports
There is a consensus on the role of protein conformational changes within the photosynthetic antenna that alter the spectral properties of the embedded pigments during regulated heat dissipation, but despite this, the molecular mechanisms involved are ...
Clara García-Martínez   +6 more
doaj   +1 more source

Robust and secure perceptual image hashing in the transform domain [PDF]

open access: yes
The rapid development of multimedia devices such as computers, network technologies, and cell phones have made it easier for users to create, broadcast, convey, share, store, and distribute multimedia data including images, videos and audio files on a ...
Prungsinchai, Supakorn
core  

Detection of elliptical polarization parameters using a metalens

open access: yesКомпьютерная оптика
A metalens capable of detecting the polarization ellipticity of an incident beam is considered in this paper. This metalens consists of blocks with diffraction gratings of a 140-nm height and a 220-nm period.
A.G. Nalimov   +4 more
doaj   +1 more source

Fourier-invariant autofocused Laguerre-Gaussian beams

open access: yesКомпьютерная оптика
We study a new Laguerre - Gaussian (LG) beam, which differs from conventional LG mode beams that preserve the structure of the intensity distribution up to scale.
V.V. Kotlyar   +4 more
doaj   +1 more source

Easy Java Programming for Teaching Image Processing [PDF]

open access: yes
We have designed a series of computer sessions build around ImageJ (a public-domain software for image analysis), as a practical complement to a two-semester course in image processing.
Unser, M., Sage, D.
core   +1 more source

Survey on Image Processing [PDF]

open access: yes, 2017
Image processing is the process of converting the image into enhanced form to show the hidden objects or other features. Image processing is used in various fields like medical fields, defence system, pattern recognition etc.
Kaur, Gurpreet; M.Tech Student, Department of Computer Science and Engineering, Guru Nanak Dev Engineering College, Ludhiana, Punjab, India.
core  

Digital Image Processing: Advanced Technologies and Applications [PDF]

open access: yes
The following reprint, “Digital Image Processing: Advanced Technologies and Applications”, explores modern methods in the field of digital image processing.

core   +1 more source

Home - About - Disclaimer - Privacy