This is "Not Quite Perl" -- a lightweight Raku-like environment for virtual machines. The key feature of NQP is that it's designed to be a very small environment (as compared with, say, Rakudo) and is focused on being a high-level way to create compilers and libraries for virtual machines like MoarVM, the JVM, and others.

Unlike a full-fledged implementation of Raku, NQP strives to have as small a runtime footprint as it can, while still providing a Raku object model and regular expression engine for the virtual machine.

This provides a trait and a role for the identification of `opt in' serializable attributes in, e.g., JSON::Marshal. It's probably not necessary to use this directly as it will be required by, e.g., JSON::Name, but it's just more convenient to package it separately.

A naive imperative JSON parser in pure Raku (but with direct access to nqp:: ops), to evaluate performance against JSON::Tiny. It is a drop-in replacement for JSON::Tiny's from-json and to-json subs, but it offers a few extra features.

XML::Writer is a module for creating XML in Raku.

This library provides a single exported subroutine to create a JSON representation of an object. It should round trip back into an object of the same class using JSON::Unmarshal.

This is released as a dependency of JSON::Marshal and JSON::Unmarshal in order to save duplication, it is intended to store a separate JSON name for an attribute where the name of the JSON attribute might be changed, either for aesthetic reasons or the name is not a valid Perl identifier. It will of course also be needed in classes that are going to use JSON::Marshal or JSON::Unmarshal for serialization/deserialization.

This is a simple role that provides methods to instantiate a class from a JSON string that (hopefully) represents it, and to serialize an object of the class to a JSON string. The JSON created from an instance should round trip to a new instance with the same values for the public attributes. Private attributes (that is ones without accessors,) will be ignored for both serialization and deserialization. The exact behaviour depends on that of JSON::Marshal and JSON::Unmarshal respectively.

Arcanist is the command-line tool for the Phabricator software development service. It allows you to interact with Phabricator installs to send code for review, download patches, transfer files, view status, make API calls, and various other things.

Entangle is an application which uses GTK and libgphoto2 to provide a graphical interface for tethered photography with digital cameras. It includes control over camera shooting and configuration settings and 'hands off' shooting directly from the controlling computer.

This project implements a tool for focus stacking images. The application takes a set of images captured at different focus distances and combines them so that the complete subject is in focus.

LibRaw is a library for reading RAW files obtained from digital photo cameras (CRW/CR2, NEF, RAF, DNG, and others).

This package provides tools to import photos and videos from cameras, phones and memory cards and generate meaningful file and folder names.

This package provides the exiftool command and the Image::ExifTool Perl library to manipulate EXIF tags of digital images and a wide variety of other metadata.

Enblend blends away the seams in a panoramic image mosaic using a multi-resolution spline. Enfuse merges different exposures of the same scene to produce an image that looks much like a tone-mapped image.

This package provides RawTherapee's highly optimized RAW processing routines.

This package provides a utility to produce modulation transfer function (MTF) maps of images. MTF is a measure of edge acuity. The program will automatically detect dark rectangular objects on light backgrounds, and extract MTF values on all edges. It can help to tune SLR autofocus. Features include:

• Automatically extracts dark (black) rectangular objects from images, and measures the Modulation Transfer Function (MTF, a measure of image sharpness) across the edges of the rectangles. Measurement is performed using the "slanted edge" method, similar to ISO 12233.

• Using a special test chart (.pdf supplied), measure the point of sharpest focus relative to a reference point, i.e., measure front- or back-focus in DSLRs;

• Measure the MTF (sharpness) of your lens across the field of view;

• Works with many image formats, including JPEG and various raw formats;

• Provides feedback on chart orientation (for some chart types) helping you to correctly set up the chart relative to the camera sensor;

• Use the GUI to visualize and compare MTF/SFR curves between different images, or different edges within the same image.

The libexif C library allows applications to read, edit, and save EXIF data as produced by digital cameras.

Ansel is an photo-editing software for digital artists, designed to help you achieve your own interpretation of raw digital photographs.

Gphoto2 is a set of command line utilities for manipulating a large number of different digital cameras. Through libgphoto2, it supports PTP, MTP, and much more.

The libpano13 package contains the backend library written by the Panorama Tools project for building panoramic images from a set of overlapping images, as well as some command line tools.

Photoflare is a cross-platform image editor with an aim to balance between powerful features and a very friendly graphical user interface. It suits a wide variety of different tasks and users who value a more nimble workflow. Features include basic image editing capabilities, paint brushes, image filters, colour adjustments and more advanced features such as Batch image processing.

Darktable is a photography workflow application and RAW developer. It manages your digital negatives in a database, lets you view them through a zoomable lighttable and enables you to develop raw images and enhance them.

This is the library backend for gphoto2. It contains the code for PTP, MTP, and other vendor specific protocols for controlling and transferring data from digital cameras.

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. But we all want ideal shots, don't we? So that's what's Lensfun is all about: rectifying the defects introduced by your photographic equipment.