qv 5.1 is released


This release improves integration into desktop environments.

qv 5.0 is released


This release follows the rename of libtad to libtgd.

qv 4.5 is released


This release adds support for Qt6. You can still use Qt5 by setting QV_USE_QT5=ON in CMake. Furthermore, a problem with parallel computation of statistics and histograms was fixed, and the statistics overlay now shows the number of invalid values in the current channel (i.e. not-a-number or infinity values).

qv 4.4 is released


This release enables deep color output (30 bits) on systems that support it, and vastly improves the handling of video files when used with libtad ≥ 2.3: they are now shown instantly, decoding is hardware accelerated by default, and jumping between different frames is faster than before.

qv 4.3 is released


This release fixes a few problems with color space handling under certain conditions and improves grid rendering.

qv 4.2 is released


This release improves handling of data with more than 4 channels, data with alpha channels, and data containing color data in the GRAY or SRGB/GRAY color spaces. Furthermore, operations on color channels (e.g. range selection, dynamic range reduction, color mapping) now work on perceptually linear lightness (via the CIELUV color space) instead of the luminance channel of CIEXYZ.
An update is recommended.

qv 4.1 is released


This release fixes a small problem where the current channel was not kept when switching between frames inside the same file, e.g. in a video.

qv 4.0 is released


This release focusses on usability improvements. All functionality is now available through a classical menu and context menu system in addition to the keyboard shortcuts. Furthermore, a cyclic qualitative color map was added, useful for example for phase data.

qv 3.1 is released


A few minor improvements were made. The only functional change is that the key bindings for switching between files and frames were swapped: without the shift key, you now switch files, and with the shift key, you now switch between frames inside the same file (e.g. for video files).
It is recommended to use the latest version of the tad library to benefit from its improvements.

qv 3.0 is released


This version improves the info overlay and adds an option -i to set importer hints (as in the tad utility).

qv 2.6 is released


This version speeds up color space conversions and the computation of statistics and histograms by using all CPU cores. Furthermore, usability was improved and a few bugs were fixed. By using libtad 0.6, support for various file formats is improved, and reloading a file works reliably now.
Update: version 2.5 introduced a color conversion bug and was replaced with version 2.6.

qv 2.4 is released


This version improves navigation through many files (thousands are no problem) and optimizes performance. Several bugs were fixed.

qv 2.3 is released


This version allows to manage visualization parameters either per file or globally for all files. More data types are support for sRGB color images (in particular, 16 bit). A few bugs were fixed.

qv 2.2 is released


This version fixes a few bugs and improves the brightness handling for dynamic range reduction (tone mapping).

qv 2.1 is released


This version adds suppor for many more input formats, including frame-by-frame analysis of video files, mainly thanks to improvements in tad 0.3. Additionally, some bugs were fixed.

qv 2.0 is released


This version adds support for very large files by using a quadtree hierarchy. Usability was improved everywhere. Support for simple dynamic range reduction / tone mapping was added.

qv 1.1 is released


This is the first useful release.