darktable clone with no 'feature creep'

Siril is an astronomical image processing tool

free, multi-platform focus stacking software. Contribute to noah-peeters/ChimpStackr development by creating an account on GitHub.

AI based photo polishing (de-noising,...)

Ein Darktable Buch

Name that lens is a shareware, cross-platform, desktop application (for Windows, MacOS and Linux) for adding manual lens information to camera RAW files.

Many of the photographs you will find in the galleries on this site were taken with classic/vintage manual lenses. Unlike with a modern auto-focus lens, a digital camera has no way of determining what lens was used to take a photo, or indeed what the aperture and focal length were set to. It is therefore not possible to record this metadata in the image RAW file or processed JPEG file. I personally find this unacceptable and maddening! What I really wanted was a simple way to keep a record of all my lenses and be able to quickly and easily add the desired information to my photographs.

After hunting around the internet for a while, the only solution I found that came close to what I wanted was the excellent LensTagger plugin for Lightroom. This plugin did nearly everything I wanted, but (obviously) only works with Lightroom. As I often work with different tools (Darktable for example) on operating systems for which Lightroom is not available (Linux) I decided to create this little application ad share it with anyone who might find it useful.

NameThatLens, in its current form, is essentially a GUI for the wonderful ExifTool by Phil Harvey, but I have plans to make the application standalone in the near future.

PhotoFilmStrip creates movies out of your pictures in just 3 steps. First select your photos, customize the motion path and render the video. There are several output possibilities for VCD, SVCD, DVD up to FULL-HD.

The effect of the slideshow is known as "Ken Burns". Comments of the pictures are generated into a subtitle file. Furthermore an audio file can be specified to setup the background musice for the slide show.

In contrary to other projects i know so far, PhotoFilmStrip has the opportunity to render slide show in Full-HD (1920x1080) resolution.

Fast Explicit Diffusion (FED) is a simple explicit scheme that uses varying time step sizes [1]. It is substantially faster than usual explicit schemes: Up to 50% of its time step sizes exceed the stability limit, and the stopping time grows quadratically in the number of steps. Thus, a few steps suffice to obtain astonishing stopping times. Another advantage of FED is the simplicity of implementation. Any explicit scheme can easily be converted into FED by adding two simple precomputation steps: Deriving the time step sizes, and choosing a suitable rearrangement in order to tame rounding errors. Besides being very efficient on sequential hardware, FED is also very well suited for massively parallel architectures, such as GPUs. Due to its simplicity, even complex diffusion-like processes such as highly accurate optic flow methods can easily be realised [2]. The resulting algorithms for GPUs beat the most sophisticated numerical solvers on CPUs by two to three orders of magnitude.

Photo blog

Neuere digitale Spiegelreflex-Kameras (zumindest die von Canon) ermöglichen es die verwendeten Objektive optimal einzustellen. Dies erfolgt mit einer Funktion namens Micro-Adjust.

Um diese Feineinstellung vorzunehmen, benötigt man eine Fokustarget. Es gibt im Internet verschiedene Fokustargets. Sie alle werden auf ein Blatt (meist A4) ausgedruckt und auf den Boden bzw. auf eine ebene Fläche gelegt. Die Kamera wird dann auf einem Stativ befestigt und optimalerweise im 45° Winkel zum ausgedruckten Blatt aufgestellt. Die generelle Schwierigkeit dabei ist es allerdings sicherzustellen, dass das Autofokussystem der Kamera auch wirklich auf den gewünschten Punkt fokussiert. Für Makroaufnahmen sollte der anfokussierte Punkt in der Mitte des Tiefenschärfebereichs liegen. Für Standardaufnahmen ist es normal, dass der Schärfentiefebereich 1/3 vor und 2/3 nach dem anfokussierten Punkt liegt.

Der Freie Online Fotokurs

GradFilter simulates a graduated neutral density filter. GradFilter Pro extends support to allow multiple graduated filters of any color, on any layer. Either plugin can be used, for example, to darken a bright sky or brighten a dark subject so that both the sky and subject are properly exposed. In an ideal world, a real physical filter would be used as this maximises the dynamic range of the image hitting the film plane/sensor, but this plugin is still quite useful in many situations where one doesn't have such a filter to hand, especially when working with RAW files. In some ways, the plugin provides a greater amount of flexibility, by stretching the physical constraints of a real filter to allow the "addition" of light.

GradFilter is available for free and includes a functional set of features for applying a graduated neutral density filter to the main layer.

Hi! Here you can find my plugins written for Bibble, a RAW developer and professional workflow management software by BibbleLabs.
For me the main advantages of Bibble are its portability between different operating systems (it's the best RAW developer for Linux) and its extensibility by third party plugins, which will help you to perform typical photo-editing tasks without the need to open other editors like Photoshop or Gimp.
This page contains a good collection of plugins developed by others for Bibble.

B+W und Cokin Filter

This site is all about the lensfun library. What is it, you may ask?

Digital photographs are not ideal. Of course, the better is your camera, the better the results will be, but in any case if you look carefully at shots taken even by the most expensive cameras equipped with the most expensive lenses you will see various artifacts. It is very hard to make ideal cameras, because there are a lot of factors that affect the final image quality, and at some point camera and lens designers have to trade one factor for another to achieve the optimal image quality, within the given design restrictions and budget.

The tables listed below give the names of all tags recognized by ExifTool.

The web's most comprehensive site devoted to the art of landscape and nature photography using traditional as well as digital image processing techniques.