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Article Alert: Biophysical Characterization of Protected Areas Globally through Optimized Image Segmentation and Classification

A new EU BON derived paper, publsihed recently in the journal Remote Sensing, introduces eHabitat+, a habitat modelling service supporting the European Commission’s Digital Observatory for Protected Areas.

Abstract:

Protected areas (PAs) need to be assessed systematically according to biodiversity values and threats in order to support decision-making processes. For this, PAs can be characterized according to their species, ecosystems and threats, but such information is often difficult to access and usually not comparable across regions. There are currently over 200,000 PAs in the world, and assessing these systematically according to their ecological values remains a huge challenge. However, linking remote sensing with ecological modelling can help to overcome some limitations of conservation studies, such as the sampling bias of biodiversity inventories. The aim of this paper is to introduce eHabitat+, a habitat modelling service supporting the European Commission’s Digital Observatory for Protected Areas, and specifically to discuss a component that systematically stratifies PAs into different habitat functional types based on remote sensing data. eHabitat+ uses an optimized procedure of automatic image segmentation based on several environmental variables to identify the main biophysical gradients in each PA. This allows a systematic production of key indicators on PAs that can be compared globally. Results from a few case studies are illustrated to show the benefits and limitations of this open-source tool.

Original Source: 

Martínez-López, J.; Bertzky, B.; Bonet-García, F.J.; Bastin, L.; Dubois, G. Biophysical Characterization of Protected Areas Globally through Optimized Image Segmentation and Classification. Remote Sens. 2016, 8, 780. DOI: 0.3390/rs8090780





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New EU BON Forum Paper discusses legitimacy of reusing images from scientific papers addressed

The discipline of taxonomy is highly reliant on previously published photographs, drawings and other images as biodiversity data. Inspired by the uncertainty among taxonomists, a team, representing both taxonomists and experts in rights and copyright law, has traced the role and relevance of copyright when it comes to images with scientific value. Their discussion and conclusions are published in the latest paper added in the EU BON Collection in the open science journal Research Ideas and Outcomes (RIO).

Taxonomic papers, by definition, cite a large number of previous publications, for instance, when comparing a new species to closely related ones that have already been described. Often it is necessary to use images to demonstrate characteristic traits and morphological differences or similarities. In this role, the images are best seen as biodiversity data rather than artwork. According to the authors, this puts them outside the scope, purposes and principles of Copyright. Moreover, such images are most useful when they are presented in a standardized fashion, and lack the artistic creativity that would otherwise make them 'copyrightable works'.

"It follows that most images found in taxonomic literature can be re-used for research or many other purposes without seeking permission, regardless of any copyright declaration," says Prof. David J. Patterson, affiliated with both Plazi and the University of Sydney.

Nonetheless, the authors point out that, "in observance of ethical and scholarly standards, re-users are expected to cite the author and original source of any image that they use." Such practice is "demanded by the conventions of scholarship, not by legal obligation," they add.

However, the authors underline that there are actual copyrightable visuals, which might also make their way to a scientific paper. These include wildlife photographs, drawings and artwork produced in a distinctive individual form and intended for other than comparative purposes, as well as collections of images, qualifiable as databases in the sense of the European Protection of Databases directive.

In their paper, the scientists also provide an updated version of the Blue List, originally compiled in 2014 and comprising the copyright exemptions applicable to taxonomic works. In their Extended Blue List, the authors expand the list to include five extra items relating specifically to images.

"Egloff, Agosti, et al. make the compelling argument that taxonomic images, as highly standardized 'references for identification of known biodiversity,' by necessity, lack sufficient creativity to qualify for copyright. Their contention that 'parameters of lighting, optical and specimen orientation' in biological imaging must be consistent for comparative purposes underscores the relevance of the merger doctrine for photographic works created specifically as scientific data," comments on the publication Ms. Gail Clement, Head of Research Services at the Caltech Library.

"In these cases, the idea and expression are the same and the creator exercises no discretion in complying with an established convention. This paper is an important contribution to the literature on property interests in scientific research data - an essential framing question for legal interoperability of research data," she adds.

###

Original source:

Egloff W, Agosti D, Kishor P, Patterson D, Miller J (2017) Copyright and the Use of Images as Biodiversity Data. Research Ideas and Outcomes 3: e12502. https://doi.org/10.3897/rio.3.e12502





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Biophysical Characterization of Protected Areas Globally through Optimized Image Segmentation and Classification





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Copyright and the Use of Images as Biodiversity Data




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Public Image Ltd - This is PiL

Rotten returns with a curious mixture of rage and nostalgia.




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Axis Notifies Users of Image Quality Issues

AXIS Image Health Analytics notifies users of any issues with image quality and ensures that the cameras being used are capturing the right images at all times.




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Graphic image of workplace fatalities

As a writer I’m loath to admit it, but sometimes words just can’t paint as clear of a picture as, well, a picture.




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Landscapes as represented in textbooks and in students' imagination: stability, generational gap, image retention and recognisability.

Children's Geographies; 08/01/2021
(AN 152310091); ISSN: 14733285
Academic Search Premier




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Graduate Image Processing R & D Engineer, Graduates, Manchester, UK, Research

About the Role
As an Imaging R&D Graduate, you will be joining the ISP team within Arm, which develops and designs image processing technology that is used in a range of applications including automobiles, security cameras, and drones. The algorithm development team is tasked with solving a variety of image processing problems, from denoise to demosaic, auto-exposure to motion compensation. Our algorithms must satisfy the competing demands of high image quality, and efficient, low-power hardware implementation.

This is an opportunity to contribute towards the next generation of imaging systems, for both human viewing and autonomous driving applications.

Why should you apply?

  • You want to work in leading digital imaging technology.
  • You have a keen interest in imaging or image processing, which you would like to develop into a career.
  • You want to see tangible results from your work.
  • You want to have the opportunity to learn from the best engineers and start a career in a leading imaging and vision technology group.

What will I be accountable for?

  • Working with image quality experts to determine requirements for processing.
  • Developing new image processing algorithms, often from early concept phase and typically in a mathematical modelling environment.
  • Implementing novel algorithms, starting from a floating-point model
  • Testing and benchmarking of the results, working closely with our image quality experts.
  • Collaborating with the wider engineering team to arrive at an architecture and fixed-point model of your algorithm, optimized for hardware or software implementation




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A qualitative study exploring participants experiences of the Mental Imagery for Suicidality in Students Trial

Abstract Objectives Higher education students experience elevated levels of suicidal ideation, but often face barriers in accessing support. The Mental Imagery for Suicidality in Students Trial (MISST; ISRCTN13621293; NCT05296538) tested the feasibility and acceptability of a six-session imagery-based approach called Broad-Minded Affective Coping (BMAC). This qualitative evaluation explored the experiences of MISST participants and staff. […]

The post A qualitative study exploring participants experiences of the Mental Imagery for Suicidality in Students Trial was curated by information for practice.



  • Journal Article Abstracts

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Dom Flemons presents a new image of the American cowboy

The singer-songwriter's latest album, "Black Cowboys," chronicles the role played by African-Americans in settling the West after the Civil War. The album has been nominated for a Grammy.




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imageHOLDERS addresses post-pandemic concerns with touchless self-service solutions for ViewPoint Feedback

imageHOLDERS’ bespoke kiosk technology has helped ViewPoint Feedback develop a new range of touchless self-service solutions ­- ensuring customers, employees, patients and students continue to leave vital real-time responses.




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US Experts: Uranium Enrichment Facility Images Released by N. Korea Differs from that of 2010

[Science] :
Two U.S. experts who inspected North Korea’s uranium enrichment facility at the Yongbyon nuclear complex in 2010 have analyzed recent images of a similar facility in the North and pointed out differences.  Stanford University professor emeritus Siegfried Hecker and Robert Carlin, a scholar at the ...

[more...]




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RAPID, an ImageJ macro for indexing electron diffraction zone axis spot patterns of cubic materials

RAPID (RAtio method Pattern InDexing) is an ImageJ macro script developed for the quick determination of sample orientation and indexing of calibrated and uncalibrated zone axis aligned electron diffraction patterns from materials with a cubic crystal structure. In addition to SAED and NBED patterns, the program is also capable of handling zone axis TEM Kikuchi patterns and FFTs derived from HR(S)TEM images. The software enables users to rapidly determine whether materials are cubic, pseudo-cubic, or non-cubic, and to distinguish between P, I, and F Bravais lattices. It can also provide lattice parameters for material verification and aid in determining the camera constant of the instrument, thus making the program a convenient tool for on-site crystallographic analysis in the TEM laboratory.




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Image registration for in situ X-ray nano-imaging of a composite battery cathode with deformation

The structural and chemical evolution of battery electrodes at the nanoscale plays an important role in affecting the cell performance. Nano-resolution X-ray microscopy has been demonstrated as a powerful technique for characterizing the evolution of battery electrodes under operating conditions with sensitivity to their morphology, compositional distribution and redox heterogeneity. In real-world batteries, the electrode could deform upon battery operation, causing challenges for the image registration which is necessary for several experimental modalities, e.g. XANES imaging. To address this challenge, this work develops a deep-learning-based method for automatic particle identification and tracking. This approach was not only able to facilitate image registration with good robustness but also allowed quantification of the degree of sample deformation. The effectiveness of the method was first demonstrated using synthetic datasets with known ground truth. The method was then applied to an experimental dataset collected on an operating lithium battery cell, revealing a high degree of intra- and interparticle chemical complexity in operating batteries.




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ProSPyX: software for post-processing images of X-ray ptychography with spectral capabilities

X-ray ptychography is a coherent diffraction imaging technique based on acquiring multiple diffraction patterns obtained through the illumination of the sample at different partially overlapping probe positions. The diffraction patterns collected are used to retrieve the complex transmittivity function of the sample and the probe using a phase retrieval algorithm. Absorption or phase contrast images of the sample as well as the real and imaginary parts of the probe function can be obtained. Furthermore, X-ray ptychography can also provide spectral information of the sample from absorption or phase shift images by capturing multiple ptychographic projections at varying energies around the resonant energy of the element of interest. However, post-processing of the images is required to extract the spectra. To facilitate this, ProSPyX, a Python package that offers the analysis tools and a graphical user interface required to process spectral ptychography datasets, is presented. Using the PyQt5 Python open-source module for development and design, the software facilitates extraction of absorption and phase spectral information from spectral ptychographic datasets. It also saves the spectra in file formats compatible with other X-ray absorption spectroscopy data analysis software tools, streamlining integration into existing spectroscopic data analysis pipelines. To illustrate its capabilities, ProSPyX was applied to process the spectral ptychography dataset recently acquired on a nickel wire at the SWING beamline of the SOLEIL synchrotron.




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The effect of transport apertures on relay-imaged, sharp-edged laser profiles in photoinjectors and the impact on electron beam properties

In a photoinjector electron source, the initial transverse electron bunch properties are determined by the spatial properties of the laser beam on the photocathode. Spatial shaping of the laser is commonly achieved by relay imaging an illuminated circular mask onto the photocathode. However, the Gibbs phenomenon shows that recreating the sharp edge and discontinuity of the cut profile at the mask on the cathode is not possible with an optical relay of finite aperture. Furthermore, the practical injection of the laser into the photoinjector results in the beam passing through small or asymmetrically positioned apertures. This work uses wavefront propagation to show how the transport apertures cause ripple structures to appear in the transverse laser profile even when effectively the full laser power is transmitted. The impact of these structures on the propagated electron bunch has also been studied with electron bunches of high and low charge density. With high charge density, the ripples in the initial charge distribution rapidly wash-out through space charge effects. However, for bunches with low charge density, the ripples can persist through the bunch transport. Although statistical properties of the electron bunch in the cases studied are not greatly affected, there is the potential for the distorted electron bunch to negatively impact machine performance. Therefore, these effects should be considered in the design phase of accelerators using photoinjectors.




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Signal-to-noise and spatial resolution in in-line imaging. 1. Basic theory, numerical simulations and planar experimental images

Signal-to-noise ratio and spatial resolution are quantitatively analysed in the context of in-line (propagation based) X-ray phase-contrast imaging. It is known that free-space propagation of a coherent X-ray beam from the imaged object to the detector plane, followed by phase retrieval in accordance with Paganin's method, can increase the signal-to-noise in the resultant images without deteriorating the spatial resolution. This results in violation of the noise-resolution uncertainty principle and demonstrates `unreasonable' effectiveness of the method. On the other hand, when the process of free-space propagation is performed in software, using the detected intensity distribution in the object plane, it cannot reproduce the same effectiveness, due to the amplification of photon shot noise. Here, it is shown that the performance of Paganin's method is determined by just two dimensionless parameters: the Fresnel number and the ratio of the real decrement to the imaginary part of the refractive index of the imaged object. The relevant theoretical analysis is performed first, followed by computer simulations and then by a brief test using experimental images collected at a synchrotron beamline. More extensive experimental tests will be presented in the second part of this paper.




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X-ray lens figure errors retrieved by deep learning from several beam intensity images

The phase problem in the context of focusing synchrotron beams with X-ray lenses is addressed. The feasibility of retrieving the surface error of a lens system by using only the intensity of the propagated beam at several distances is demonstrated. A neural network, trained with a few thousand simulations using random errors, can predict accurately the lens error profile that accounts for all aberrations. It demonstrates the feasibility of routinely measuring the aberrations induced by an X-ray lens, or another optical system, using only a few intensity images.




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Characterizing electron-collecting CdTe for use in a 77 ns burst-rate imager

The Keck-PAD (pixel array detector) was developed at Cornell as a burst-rate imager capable of recording images from successive electron bunches (153 ns period) from the Advanced Photon Source (APS). Both Si and hole-collecting Schottky CdTe have been successfully bonded to this ASIC (application-specific integrated circuit) and used with this frame rate. The facility upgrades at the APS will lower the bunch period to 77 ns, which will require modifications to the Keck-PAD electronics to image properly at this reduced period. In addition, operation at high X-ray energies will require a different sensor material having a shorter charge collection time. For the target energy of 40 keV for this project, simulations have shown that electron-collecting CdTe should allow >90% charge collection within 35 ns. This collection time will be sufficient to sample the signal from one frame and prepare for the next. 750 µm-thick electron-collecting Schottky CdTe has been obtained from Acrorad and bonded to two different charge-integrating ASICs developed at Cornell, the Keck-PAD and the CU-APS-PAD. Carrier mobility has been investigated using the detector response to single X-ray bunches at the Cornell High Energy Synchrotron Source and to a pulsed optical laser. The tests indicate that the collection time will meet the requirements for 77 ns imaging.




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DLSIA: Deep Learning for Scientific Image Analysis

DLSIA (Deep Learning for Scientific Image Analysis) is a Python-based machine learning library that empowers scientists and researchers across diverse scientific domains with a range of customizable convolutional neural network (CNN) architectures for a wide variety of tasks in image analysis to be used in downstream data processing. DLSIA features easy-to-use architectures, such as autoencoders, tunable U-Nets and parameter-lean mixed-scale dense networks (MSDNets). Additionally, this article introduces sparse mixed-scale networks (SMSNets), generated using random graphs, sparse connections and dilated convolutions connecting different length scales. For verification, several DLSIA-instantiated networks and training scripts are employed in multiple applications, including inpainting for X-ray scattering data using U-Nets and MSDNets, segmenting 3D fibers in X-ray tomographic reconstructions of concrete using an ensemble of SMSNets, and leveraging autoencoder latent spaces for data compression and clustering. As experimental data continue to grow in scale and complexity, DLSIA provides accessible CNN construction and abstracts CNN complexities, allowing scientists to tailor their machine learning approaches, accelerate discoveries, foster interdisciplinary collaboration and advance research in scientific image analysis.




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Robust image descriptor for machine learning based data reduction in serial crystallography

Serial crystallography experiments at synchrotron and X-ray free-electron laser (XFEL) sources are producing crystallographic data sets of ever-increasing volume. While these experiments have large data sets and high-frame-rate detectors (around 3520 frames per second), only a small percentage of the data are useful for downstream analysis. Thus, an efficient and real-time data classification pipeline is essential to differentiate reliably between useful and non-useful images, typically known as `hit' and `miss', respectively, and keep only hit images on disk for further analysis such as peak finding and indexing. While feature-point extraction is a key component of modern approaches to image classification, existing approaches require computationally expensive patch preprocessing to handle perspective distortion. This paper proposes a pipeline to categorize the data, consisting of a real-time feature extraction algorithm called modified and parallelized FAST (MP-FAST), an image descriptor and a machine learning classifier. For parallelizing the primary operations of the proposed pipeline, central processing units, graphics processing units and field-programmable gate arrays are implemented and their performances compared. Finally, MP-FAST-based image classification is evaluated using a multi-layer perceptron on various data sets, including both synthetic and experimental data. This approach demonstrates superior performance compared with other feature extractors and classifiers.




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Bragg Spot Finder (BSF): a new machine-learning-aided approach to deal with spot finding for rapidly filtering diffraction pattern images

Macromolecular crystallography contributes significantly to understanding diseases and, more importantly, how to treat them by providing atomic resolution 3D structures of proteins. This is achieved by collecting X-ray diffraction images of protein crystals from important biological pathways. Spotfinders are used to detect the presence of crystals with usable data, and the spots from such crystals are the primary data used to solve the relevant structures. Having fast and accurate spot finding is essential, but recent advances in synchrotron beamlines used to generate X-ray diffraction images have brought us to the limits of what the best existing spotfinders can do. This bottleneck must be removed so spotfinder software can keep pace with the X-ray beamline hardware improvements and be able to see the weak or diffuse spots required to solve the most challenging problems encountered when working with diffraction images. In this paper, we first present Bragg Spot Detection (BSD), a large benchmark Bragg spot image dataset that contains 304 images with more than 66 000 spots. We then discuss the open source extensible U-Net-based spotfinder Bragg Spot Finder (BSF), with image pre-processing, a U-Net segmentation backbone, and post-processing that includes artifact removal and watershed segmentation. Finally, we perform experiments on the BSD benchmark and obtain results that are (in terms of accuracy) comparable to or better than those obtained with two popular spotfinder software packages (Dozor and DIALS), demonstrating that this is an appropriate framework to support future extensions and improvements.




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Deconstructing 3D growth rates from transmission microscopy images of facetted crystals as captured in situ within supersaturated aqueous solutions

Here, a morphologically based approach is used for the in situ characterization of 3D growth rates of facetted crystals from the solution phase. Crystal images of single crystals of the β-form of l-glutamic acid are captured in situ during their growth at a relative supersaturation of 1.05 using transmission optical microscopy. The crystal growth rates estimated for both the {101} capping and {021} prismatic faces through image processing are consistent with those determined using reflection light mode [Jiang, Ma, Hazlehurst, Ilett, Jackson, Hogg & Roberts (2024). Cryst. Growth Des. 24, 3277–3288]. The growth rate in the {010} face is, for the first time, estimated from the shadow widths of the {021} prismatic faces and found to be typically about half that of the {021} prismatic faces. Analysis of the 3D shape during growth reveals that the initial needle-like crystal morphology develops during the growth process to become more tabular, associated with the Zingg factor evolving from 2.9 to 1.7 (>1). The change in relative solution supersaturation during the growth process is estimated from calculations of the crystal volume, offering an alternative approach to determine this dynamically from visual observations.




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Hidden Curriculum - An Image Holder of Engineering

In a new NAE Perspective, Idalis Villanueva Alarcón argues that engineering must recognize and permanently remove negative hidden curriculum. It is only then that engineering can create a new image, one where everyone is equitably welcomed, valued, invested in, and sustained for generations to come.




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Baidu bolsters AI lineup with text-to-image generator, no-code app builder

The country's leading search engine company is among tech firms shifting their focus to the commercialisation of large language model (LLM) applications after nearly two years of heavy investment in research and development in models that they tout as alternatives to OpenAI's GPT.




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Chia Unveils The AI-powered Revolutionary Image Generation Platform "SENSEI CODE" for Online Publishers

SENSEI CODE enables online publishers to save, organize, and share content creations while exploring a vast collection of publicly shared images for business. Additionally, all images created using SENSEI CODE are commercially usable.




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Inspired Image is a New App for Photographers, Explorers, Travelers, Anglers, Hunters, and Many More

Be inspired to take your images and adventures to the next level. We are now live on Kickstarter!




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Big Game Hunting, Remote Places, Thrilling Adventures and Spectacular Imagery

In Leonard Hansen's latest book, "North American Mountain Hunting", he chronicles the physical and mental challenges of high elevations, constantly changing weather patterns and rugged terrains.




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Review of One of The Best NSFW AI Image Generators of 2023

Hotimage.ai intuitive interface makes it accessible for both seasoned creators and newcomers




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Rising Trends: AI Art Generators Crafting NSFW Images

Hotimage.ai offers a fresh and innovative avenue for artists to delve into fantasy themes




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Tired of Traditional AI Tools? New AI Image Generator Revolutionizes NSFW Content

Hotimage.ai Shaping NSFW Art: AI Image Generators at the Forefront of NSFW Content Evolution




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Image Scanning: An Innovation from 1957

In 1957 a researcher Russell Kirsch of Gaithersburg Maryland created a breakthrough that would revolutionize the business world.




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Signature Image Global School Launches Advanced Diplomas to Jumpstart Future for Graduates and Propel Careers for Professionals

Signature Image Global School, the online academic institution affiliated with and stemming from Signature Image Academy International in Asia Singapore, announces the launch of its cutting-edge Advanced Diploma online learning programmes.




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Discover Your Inner AI Artiste With Hotimage.ai | the AI Image Generator

Elevate Your Artistic Vision with Hotimage.ai: Unleash Creative Brilliance with the Ultimate AI Image Generator




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Explore Creativity: Discounts on AI NSFW Image Generator on Black Friday | Hotimage.ai

Ignite Your Imagination: Limited-Time Offers for Unleashing AI-Generated Creativity with HotImage.ai on Black Friday




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AI Art Generators Pushing Boundaries into NSFW AI Image Creations

Exploring the Edges: How AI Art Generators Redefine Digital Design with NSFW AI Image Creations




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SwifDoo PDF Integrates OCR Feature to Recognize Image-only PDFs

In the 2.0 version, SwifDoo PDF incorporates a new feature - OCR (Optical Character Recognition) to assist users in managing digital documents. This widespread technology identifies the unsearchable content and extracts the text in image-only PDFs.




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New Tool to Speed Up the Selection of the Best Images from AI

Japplis introduces a new desktop application that aims to speed up the selection of the best images when generating a lot of AI images.




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DISCOVER ROME WITH THE PILGRIMAGE CREDENTIAL: LIVE THE "QUEST FOR THE HOLY GRAIL" WITH KNOWLEDGE AND SPIRITUALITY!

Alejandra González is the first pilgrim who has enjoyed a few magnificent days in the eternal city of Rome, doing the 'Way of the Holy Grail' with the Pilgrimage Credential.




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ARAGON SHINES IN THE 1ST FALLAS PILGRIMAGE OF THE WAY OF THE HOLY GRAIL

ARAGON OF SPAIN CREATES STRONG LINKS WITH THE HISTORIC CITY AND REGION OF VALENCIA, SPAIN. VALENCIA IS HOME TO THE 'HOLY GRAIL', WHICH CAN BE FOUND IN ITS CITY CATHEDRAL. ARAGON FORMS AN IMPORTANT PART OF THE ROUTE TO THE HOLY GRAIL.




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Spectacular Winning Images of the 2024 Standard Chartered Weather Photographer of the Year Awards

Weather Photographer, Winner: Sprites Dancing in the Dark Night by Wang Xin The Royal Meteorological Society has announced the 2024 winners of the Standard Chartered Weather Photographer of the Year Awards, featuring breathtaking images of weather phenomena worldwide. The top prize went to Wang Xin from Shanghai for the photograph “Sprites Dancing in the Dark […]




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Amazing Winning Images Of The The 2024 Nature’s Best Photography Awards

Grand Prize: “Bengal Tigers” by Mangesh Ratnakar Desai, India The 2024 Nature’s Best Photography International Awards highlighted breathtaking moments from around the globe, celebrating photographers who captured the beauty and power of Earth’s diverse ecosystems. From sweeping landscapes to intimate wildlife portraits, the award-winning images showcase nature’s grandeur and fragility, inspiring deeper appreciation and awareness […]




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40 Best Free WordPress Themes with Image Slider and Slideshow

Here is best free WordPress themes with image slider and slideshow with demo and download link. It is professional WordPress themes with slider that i have collected for more purpose of website company that you can choose which one are compatible with your business or personal.

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It’s hard to beat fourteen files and an image folder

Sometimes I think theme frameworks just aren’t a good thing for the end user. When it comes to the experience with the least friction, the most welcoming to a new user, and the least technically complex, I just don’t see anything beating a simple theme folder with a handful of template files and an image folder. […]

The post It’s hard to beat fourteen files and an image folder appeared first on WPCandy.




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Impressive Images from the Oscar Winning Movie Dune

Le film Dune de Denis Villeneuve a remporté six statuettes le 24 mars à 94e cérémonie des Oscars. Un franc succès pour ce film monumental avec Timothée Chalamet et Zendaya à l’affiche. Adaptation du roman fleuve de Franck Herbert de 1965, le film de science-fiction remporte les prix du Meilleur montage, Meilleure musique originale, Meilleur son, […]




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24 Free Grunge Texture Downloads: High-Quality Images For Photoshop Editing

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Balancing Image Speed and Quality with imgix

Users expect a website to load fast. An average web page loads in about 2.5 seconds. The longer the user has to wait, the higher the user bounce rate. There are a lot of factors that go into site speed, but images account for about 75% of the page weight on an application or website. Google’s Core Web Vitals uses several metrics to rank sites. Visual site speed or largest contentful paint affects ROI as slower sites have fewer repeat users and fewer sales.

Without properly sized images, both site speed and image quality are affected. Accordingly, we use several methods to deliver properly sized images. Our primary solution is imgix because it is easy to implement and saves managers and clients time and effort. 

Imgix Key Features

Imgix provides a lot of features — some we consistently use on projects, and others we use in very specific situations. 

Responsive Images

Setting up responsive images can be complex. As the variety of devices and their screen resolutions continue to expand, managing all the different image requirements is increasingly challenging.

Consider this scenario: a website’s images look crisp and clear on a high-resolution monitor. When that same page is viewed on a mobile device, the images are so large the page takes forever to load. A solution could be to upload a smaller image for mobile, right? It's not quite that simple. We need eight or more different sizes of the same image to account for different screen sizes and retina screens. Keeping track of all the image sizes and saving each size gets complex and would be nearly impossible to do manually on a site that has hundreds or thousands of images. 

One of our clients, National Park Foundation (NPF), wanted to clarify its message to better target major donors. Their gorgeous, large scenic images are essential to their website strategy.  NPF needed the images throughout their site to be crisp and clear at all screen sizes. Using imgix, NPF content managers can load high-resolution images to the CMS and not worry about the site's speed or performance. They rely on imgix to deliver the correctly resized image for any user's screen.

Imgix does this with their Device Pixel Ratio and Client Hints which automatically sets the pixel density for the image based on the user's device. Those API parameters can be easily set in the URLs for the image’s `srcset`. This allows developers to set an image width for an image `srcset` and then imgix delivers the right pixel ratio image to the user. We use `srcset` with imgix on other client sites like Bezos Earth Fund and Human Rights Campaign as well.

Resize and Cropping

Imgix allows you to crop images in addition to setting an image’s focal point. So, only one image needs to be uploaded and it can be used at multiple sizes and croppings throughout the site. Let's say we upload a large landscape image, but on some pages we only need to use a portion of the image cropped as a square. Imgix will crop the image and deliver the smaller versions on the pages we need while persisting the larger versions on other pages.

At Viget we use resizing and cropping on our own website, including our articles, to crop the staff photo to a smaller size at the top of the articles. This makes it possible for us to upload the staff photo once and the article image gets created automatically. 

Color Palette 

Another feature that we've used on client sites is the Color Palette API which allows you as many colors as you want from an image. For example, the Shedd Aquarium website that we built uses this feature by pulling a vibrant color from the image and setting it as the background color for the page hero. Aside from taking the manual work out of closely aligning photography with a page’s design, there’s an additional benefit: if you are on a slow connection, you will see a dynamic colored banner at the top before the image loads.

Image Upscaling

Another valuable feature is the ability to upscale images. Even if you upload an image that is low resolution, it can still be used at a higher resolution. This is especially useful for e-commerce sites or applications where users are uploading their images.  The upscale feature uses Generative AI to take a pixelated image and create a higher-resolution image. The final image will not be perfect, but it looks more professional. See the upscale demo on imgix.

Non-upscaled image
Upscaled image using Imgix

PDF Preview Images

There is also a PDF page to image option in imgix. The API enables the generation of a page-specific image preview from the PDF, which can serve as both a thumbnail and a full-size preview. When we built AHIP.org, they had a resources section for their members containing quite a few PDFs. To help with clarity and findability, we used imgix to show previews of the PDF documents to non-members. This feature allows AHIP to upload resource PDFs without having to also upload any thumbnail images. 

Face Detection

Another nice feature is a face detection parameter that you can pass to the API. This allows you to upload a photo and no matter the cropping or size it will keep the face as the focal point of the image. We used this feature on NEA for their team member page. It's great for user profile images that are used in different contexts throughout the site. 

Video Streaming

Videos have become a key design element on websites. However, determining which service to use for embedding those videos is an ongoing topic of discussion. Video platforms enable you to integrate the video onto the page, yet they introduce scripts that may impede page loading speed. Imgix offers a video embed service that allows content managers to keep all the images and videos in one place. The videos are automatically encoded to Adaptive Bitrate Streaming to get the best compression and video quality. So, videos load fast and look great on mobile and desktop. 

Imgix Video API with Adaptive Bitrate Streaming

Performance 

A lot of CMSs have image transformations built in. An image transformation encompasses everything for that image including responsive sizes, cropping, resizing, and face detection from the original. This is great for small sets of images, but transformations quickly get out of hand the more images there are on a site. For example, the homepage of the National Park Foundation has a minimum of 96 image transformations. 

Processing all of those image transformations uses a lot of server resources. Imgix saves the images and delivers them through their CDN. The imgix image CDN has an average of 0.15 milliseconds return on requests which enables images to load as quickly as possible. The CDN also caches the images on CDN edge nodes making them immediately available for future requests. 

Flexibility

Imgix is flexible enough to work with almost any site structure; including WordPress, Craft CMS, Shopify, React, Ruby on Rails, Python, and more (see the full list). So, whether a site is a WordPress site or a Rails application, imgix fits right into the ecosystem. And, even better: you don’t have to rebuild your web app or website to gain the benefits of image performance, which can save you a lot of time and money.

Setting up imgix on an existing website is easy. Imgix can connect to existing asset storage sources like AWS, Azure, or a web folder on the same domain. Once the image source is set up, a developer can start passing parameters to the API

Cost

Imgix is free for 1,000 images which makes it easy to integrate and grow with your site. Pricing goes to $750/yr for 5,000 images and $3,000/yr for 25,000 images. In their pricing structure, “images” are categorized as origin images, so the count only includes original images and not transformed ones. So, you could have hundreds of images and thousands of image transformations all being delivered through a CDN for free.

Conclusion

Ensuring fast site speed isn't just important. It is vital. It's the cornerstone of a successful online presence, directly influencing search engine rankings, user satisfaction, and ultimately, your return on investment. Properly sized and optimized images are key to ensuring your site loads quickly and displays correctly for users across various devices.

We have found that imgix enables our team to efficiently create projects with diverse image options, saving managers and developers valuable time. Our clients benefit from reduced server space and an increased site speed. Imgix’s API is comprehensive, so you can use one tool for all features and options around site images — from cropping and resizing to face detection and automated color palettes, to video and beyond. Having used imgix for the past five years to support the wide-ranging needs of our clients, we feel confident recommending it and using it again and again. 

Users expect a website to load fast, and imgix is a reliable way to make sure that happens.