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EasyHDR
EasyHDR is a High Dynamic Range (HDR) image processing software that merges differently exposed photographs into HDR radiance map and tone maps them. With a single photograph, easyHDR can be used to increase contrast and refresh colors (LDR enhancement mode). Functionality EasyHDR is designed for use under macOS and Microsoft Windows. It works on Linux under Wine. Via dcraw and LibRaw, easyHDR supports the handling of raw image files. Lens correction (distortion and chromatic aberration) is addressed based on the LensFun database. EasyHDR allows for batch processing. To this end, the user may save custom presets for tone mapping. HDR image processing The functionality of easyHDR with respect to HDR image processing includes * image alignment (manual and automatic), compensating for shift, rotation, scale and perspective, * HDR ghost effect removal, * noise filtering, * layers (masking with brushes and gradient tool). LDR enhancement In case of a single low-dynamic-ran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dcraw
dcraw is an open-source computer program which is able to read numerous raw image format files, typically produced by mid-range and high-end digital cameras. dcraw converts these images into the standard TIFF and PPM image formats. This conversion is sometimes referred to as ''developing'' a raw image (by analogy with the process of film development) since it renders raw image sensor data (a "digital negative") into a viewable form. A number of other image processing programs use dcraw internally to enable them to read raw files. Development of dcraw began on February 23, 1997. Version 1.0 was released in revision 1.18, on May 5, 2000. Versions up to 3.15 used the name ''Canon PowerShot Converter'', starting with v3.40 the name was ''Raw Photo Decoder'', switching to ''Raw Photo Decoder "dcraw"'' in v5.70. Version 8.86 supported 300 cameras. The development has stalled, with only two releases since May 2015 and the last release dated June 2018, but parts of dcraw are incl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
High Dynamic Range Imaging
In photography and videography, multi-exposure HDR capture is a technique that creates extended or high dynamic range (HDR) images by taking and combining multiple exposures of the same subject matter at different exposure levels. Combining multiple images in this way results in an image with a greater dynamic range than what would be possible by taking one single image. The technique can also be used to capture video by taking and combining multiple exposures for each frame of the video. The term "HDR" is used frequently to refer to the process of creating HDR images from multiple exposures. Many smartphones have an automated HDR feature that relies on computational imaging techniques to capture and combine multiple exposures. A single image captured by a camera provides a finite range of luminosity inherent to the medium, whether it is a digital sensor or film. Outside this range, tonal information is lost and no features are visible; tones that exceed the range are "burned ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LibRaw
LibRaw is a free and open-source software library for reading raw files from digital cameras. It supports virtually all raw formats. It is based on the source code of dcraw, with modifications, and "is intended for embedding in raw converters, data analyzers, and other programs using raw files as the initial data." LibRaw is available for Windows, macOS, Linux and FreeBSD. It is included in many Linux distributions such as Arch Linux, Debian, Fedora, Gentoo Linux, openSUSE, Slackware and Ubuntu. Software incorporating LibRaw includes digiKam, EasyHDR, gThumb, Gwenview, IrfanView, KStars, OpenImageIO, Siril, and Topaz Studio. See also *Camera Image File Format *DevIL *Digital Negative *List of cameras supporting a raw format Still cameras The following digital cameras allow photos to be taken and saved in at least one raw image format. Some cameras support more than one, usually a proprietary format and Digital Negative (file format), Digital Negative (DNG). Agf ... * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microsoft Windows
Windows is a group of several proprietary graphical operating system families developed and marketed by Microsoft. Each family caters to a certain sector of the computing industry. For example, Windows NT for consumers, Windows Server for servers, and Windows IoT for embedded systems. Defunct Windows families include Windows 9x, Windows Mobile, and Windows Phone. The first version of Windows was released on November 20, 1985, as a graphical operating system shell for MS-DOS in response to the growing interest in graphical user interfaces (GUIs). Windows is the most popular desktop operating system in the world, with 75% market share , according to StatCounter. However, Windows is not the most used operating system when including both mobile and desktop OSes, due to Android's massive growth. , the most recent version of Windows is Windows 11 for consumer PCs and tablets, Windows 11 Enterprise for corporations, and Windows Server 2022 for servers. Genealogy By marketing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chromatic Aberration
In optics, chromatic aberration (CA), also called chromatic distortion and spherochromatism, is a failure of a lens to focus all colors to the same point. It is caused by dispersion: the refractive index of the lens elements varies with the wavelength of light. The refractive index of most transparent materials decreases with increasing wavelength. Since the focal length of a lens depends on the refractive index, this variation in refractive index affects focusing. Chromatic aberration manifests itself as "fringes" of color along boundaries that separate dark and bright parts of the image. Types There are two types of chromatic aberration: ''axial'' (''longitudinal''), and ''transverse'' (''lateral''). Axial aberration occurs when different wavelengths of light are focused at different distances from the lens (focus ''shift''). Longitudinal aberration is typical at long focal lengths. Transverse aberration occurs when different wavelengths are focused at different positions i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photo Software
A photograph (also known as a photo, image, or picture) is an image created by light falling on a photosensitive surface, usually photographic film or an electronic image sensor, such as a CCD or a CMOS chip. Most photographs are now created using a smartphone/camera, which uses a lens to focus the scene's visible wavelengths of light into a reproduction of what the human eye would see. The process and practice of creating such images is called photography. Etymology The word ''photograph'' was coined in 1839 by Sir John Herschel and is based on the Greek φῶς (''phos''), meaning "light," and γραφή (''graphê''), meaning "drawing, writing," together meaning "drawing with light." History The first permanent photograph, a contact-exposed copy of an engraving, was made in 1822 using the bitumen-based "heliography" process developed by Nicéphore Niépce. The first photographs of a real-world scene, made using a camera obscura, followed a few years later at Le Gras, Fra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FARO Technologies
Faro may refer to: Places Africa * Faro (department), North Province, Cameroon * Faro National Park, Cameroon Americas * Faro, Pará, Brazil, a municipality * Faro, Yukon, Canada, a town ** Faro (electoral district) ** Faro Airport (Yukon) ** Faro/Johnson Lake Water Aerodrome * Faro, Missouri, an unincorporated community, USA * Faro, North Carolina, an unincorporated community, USA Europe * Faro District, the southern district covering the Algarve in southern Portugal ** Faro, Portugal, the municipality and main city of the district *** Faro railway station, the city's main railway station ** Faro Airport, the main regional airport in the district ** Roman Catholic Diocese of Faro, serving the district * Farø, an island in Denmark * Fårö, a Swedish island in the Baltic Sea * Faro Point, the northeastern point of Sicily, Italy Extraterrestrial * 9358 Fårö, a main belt asteroid People * Saint Faro, Roman Catholic Bishop of Meaux, France * Faro (surname) * Faro, pen na ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astrophotography
Astrophotography, also known as astronomical imaging, is the photography or imaging of astronomical objects, celestial events, or areas of the night sky. The first photograph of an astronomical object (the Moon) was taken in 1840, but it was not until the late 19th century that advances in technology allowed for detailed stellar photography. Besides being able to record the details of extended objects such as the Moon, Sun, and planets, modern astrophotography has the ability to image objects invisible to the human eye such as dim stars, nebulae, and galaxies. This is done by long time exposure since both film and digital cameras can accumulate and sum photons over these long periods of time. Photography using extended exposure-times revolutionized the field of professional astronomical research, recording hundreds of thousands of new stars, and nebulae invisible to the human eye. Specialized and ever-larger optical telescopes were constructed as essentially big cameras to rec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wrocław University Of Science And Technology
Wrocław University of Science and Technology ( pl, Politechnika Wrocławska, founded as german: link=no, Technische Hochschule Breslau) is a technological university in Wrocław, Poland. With buildings and infrastructures dispersed throughout the city, its main facilities are gathered at a central location near Plac Grunwaldzki, alongside the Oder river. It operates three regional branches in Jelenia Góra, Legnica, and Wałbrzych. Huffington Post UK named Wrocław University of Science and Technology in the top 15 of the World’s Most Beautiful Universities Rankings. Students and staff Currently the university educates almost 26,000 students in over 50 Bachelor, Master, and PhD programs. Every year over 4,000 degrees are conferred with over 80,000 graduates since its foundation. The university staff consists of over 2000 academic employees and another 2,000 administration workers. Rankings In 2021, Wrocław University of Science and Technology was among the best universitie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adobe Lightroom
Adobe Lightroom (officially Adobe Photoshop Lightroom) is a piece of image organization and image manipulation software developed by Adobe Inc. as part of the Creative Cloud subscription family. It is supported on Windows, macOS, iOS, Android, and tvOS (Apple TV). Its primary uses include importing, saving, viewing, organizing, tagging, editing, and sharing large numbers of digital images. Lightroom's editing functions include white balance, presence, tone, tone curve, HSL, color grading, detail, lens corrections, and calibration manipulation, as well as transformation, spot removal, red eye correction, graduated filters, radial filters, and adjustment brushing. The name of the software is based on darkrooms used for processing light-sensitive photographic materials. Overview Lightroom is a non-destructive editing software that keeps the original image separate from any in-program edits, saving the edited image as a new file. While Photoshop includes doctoring functions ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Raw Image Format
A camera raw image file contains unprocessed or minimally processed data from the image sensor of either a digital camera, a motion picture film scanner, or other image scanner. Raw files are named so because they are not yet processed and therefore are not ready to be Photographic printing, printed, viewed or edited with a bitmap graphics editor. Normally, the image is processed by a raw converter in a wide-gamut internal color space where precise adjustments can be made before file format conversion, conversion to a viewable file format such as JPEG or PNG for storage, printing, or further manipulation. There are dozens of raw formats in use by different manufacturers of digital image capture equipment. Rationale Raw image files are sometimes incorrectly described as "digital Negative (photography), negatives", but neither are they negatives nor do the unprocessed files constitute visible images. Rather, the Raw datasets are more like Exposure (photography), exposed but Lat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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