DiffImg 2.1.0

DiffImg is a simple image comparison tool which take two images with the same size as input. Some statitics are computed and the positions where pixel differ are displayed as a color mask.
Why check for image difference ?


  • Compression level comparison

  • Raytracing parametrization optimisation

  • Non regression tests for 3D engine

  • Just for fun !!


DifffImg use QImage as inner format so it has been tested only on RGB image, so alpha channel or float texture aren`t take into account.Because DiffImg is written with Qt, it runs on Windows and Linux (MacOSX isn`t tested yet). It can read basic formats as BMP, PNG, JPG. You
can add more formats if needed by using bridge plugins to the FreeImage or the Devil libraries. Current Features

  • Image difference display : a yellow/red mask can overlay the original/modified images.

  • Single/Dual panels mode.

  • Statistic computation: Mean error, RMS error and min/max are computed.

  • Histogram of error.

  • "Slideshow" : DiffImg can compare directory of image, so you can switch to the previous/next comparison if you have two folders with the same image list.

  • Supported files¬†:DifffImg uses Qt plugins to load images, so by default it can read basic formats as BMP, PNG, JPG. You can add more formats if needed by using bridge plugins to the FreeImage or the Devil libraries.

  • Basic batch mode


Current Supported Plaforms

  • Windows XP, Vista, Seven (with provided installer)

  • Linux (with recompilation).

  • Mac OSX: why not ? (but not tested)


User's rating:

  • Currently 2.00/5
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Predicted future versions and notices:

The doDownload.com constantly monitors the update of all programs, including information from the DiffImg 2.1.1 changelog file, however sometimes it can happen that data are not complete or are outdated.We assume that author continue's to develop 2.2.0 version with further advanced features, and soon you will be informed. Equally important 3.0.0 upgrades of the program we will continue to monitor. Full DiffImg description has been compared with the overall software database and our algorithm has found the following applications (are showed below).