Results 41 to 50 of about 112,016 (186)

Local Contrast-Based Pixel Ordering for Exact Histogram Specification

Journal of Imaging, 2022
Histogram equalization is one of the basic image processing tasks for contrast enhancement, and its generalized version is histogram specification, which accepts arbitrary shapes of target histograms including uniform distributions for histogram ...
Kohei Inoue, Naoki Ono, Kenji Hara
doaj   +1 more source

Chromatin Packing Domain Engineering Through the Manipulation of Nuclear Cationic States

Advanced Science, EarlyView.
Manipulation of intranuclear divalent cation concentrations rapidly and reversibly remodels chromatin packing domains in living cells. Magnesium depletion disrupts domain compaction, heterochromatin organization, and transcriptional regulation, whereas magnesium loading promotes more compact and stable domains.
Cody L. Dunton, Carrillo Paola Gonzalez, Luay Almassalha, Wing Shun Li, Ruyi Gong, Nicolas Acosta, I Chae Ye, Jane Frederick, Christopher Hogg, Saira John, J. A. Gareth Williams, Rikkert J. Nap, Igal Szleifer, Vadim Backman   +13 more
wiley   +1 more source

COLOUR IMAGE ENHANCEMENT BASED ON HISTOGRAM EQUALIZATION

, 2015
Histogram equalization is a nonlinear technique for adjusting the contrast of an image using its histogram. It increases the brightness of a gray scale image which is different from the mean brightness of the original image.
Kanika Kapoor and Shaveta Arora
core   +1 more source

Sequential Patterning of Photoresponsive Hydrogels Directs Crypt Fission and Reveals the Role of Epithelial Curvature on Fission Symmetry

Advanced Science, EarlyView.
Deterministic crypt fission is achieved in intestinal organoids using photopatternable hydrogels with spatiotemporal control. Daughter‐crypt symmetry is shown to depend on parent‐crypt geometry and epithelial curvature, while myosin‐dependent mechanosensing links tissue shape to regenerative outcomes.
Delaney L. McNally, Kaustav Bera, Nolan R. Petrich, Alex Khang, Marilyne Coulombe, David Castillo‐Azofeifa, Ophir D. Klein, Peter J. Dempsey, Kristi S. Anseth   +8 more
wiley   +1 more source

Water Classification Using Convolutional Neural Network

IEEE Access, 2023
The classification of water sources is a challenging task due to the low contrast texture features, the visual similarities between them, and the causes posed by image acquisition with different camera angles and placements. The various image enhancement
Saira Asghar, Ghulam Gilanie, Mubbashar Saddique, Hafeez Ullah, Heba G. Mohamed, Irshad Ahmed Abbasi, Mohamed Abbas   +6 more
doaj   +1 more source

Histogram Stretching Or Histogram Equalization In Image Processing [PDF]

Microscopy Today, 1998
Abstract A few weeks ago, a person posted an interesting question on an internet microscopy mailing list: what is the difference between histogram stretching and histogram equalization when applied to microscopy images? The following is a short intuitive review which compares the two. Since this is a short and general description, I will
openaire   +1 more source

Combining vector quantization and histogram equalization [PDF]

[1991] Proceedings. Data Compression Conference, 1992
Combined vector quantization and adaptive histogram equalization Pamela C. Cosman Eve A. Riskin Robert M. Gray tDurand Building, Department of Electrical Engineering Stanford University, Stanford, CA, 94305-4055 Department of Electrical Engineering, FT- 10 University of Washington, Seattle, WA 98195 ABSTRACT Adaptive histogram equalization is a ...
Pamela C. Cosman, Eve A. Riskin, Robert M. Gray   +2 more
openaire   +4 more sources

AI‐Powered, Temperature‐Resolved Centrifugal Microfluidics for Rapid 3D Phase‐Diagram Generation of Biomolecular Condensates

Advanced Science, EarlyView.
By merging centrifugal microfluidics, precise temperature control, and AI image recognition, T‐PhaseMap transforms biomolecular condensate phase mapping into a rapid, temperature‐resolved workflow. It generates 3D composition–temperature phase diagrams within 30 min, resolves four phase states, and uncovers temperature‐dependent heparin sodium ...
Jiashuo Li, Pengjie Li, Kaiting Zhang, Yongqi Guo, Peng Chen, Bi‐Feng Liu, Yiwei Li   +6 more
wiley   +1 more source

Automated Alignment Powered by Computer Vision Streamlines the Two‐Photon Polymerization‐Based Micro 3D Printing of Multiscale and Multimaterial Structures

Advanced Intelligent Discovery, EarlyView.
Two‐photon polymerization enables high‐resolution microfabrication, but performing alignment when printing multiple structures is difficult. Here, we present a fast, robust, and open‐source protocol for automated alignment on Nanoscribe systems. Achieving ≈0.4 μm accuracy in under 5 s, our protocol reduces time and error in multimaterial printing. This
Daniel Maher, Valentina Mendoza Martinez, Marcin Piotr Piekarczyk, Stefan Sützl, Ada‐Ioana Bunea   +4 more
wiley   +1 more source

A Comparative Study on Histogram Equalization and Cumulative Histogram Equalization [PDF]

, 2017
Image enhancement is a way to improve the appearance of image to human viewers or to image processing system performance. Image Enhancement techniques can be classified into two categories as spatial domain and frequency domain.
Jain, T. (Trisha), Garg, P. (Priyanka)
core