Hello Linux Geeksters. As you may know, DiffImg is an open-source image comparison tool written in Qt, used for comparing two images and displays the positions where the pixels differ. Among others, it has an intuitive interface, using OpenCV as backend and has support for comparing 8/16/24/32 bits BMP, PNG, JPG, Tiff, OpenExRimages images.
- 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.
- Several metrics can be used for computing image difference.
- 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 and OpenCV supported formats (Tiff, OpenExR). Some YUV format is also take into account.
- Basic batch mode
The latest version available is DiffImg 2.2.0, which has been released a while ago. For more information, see the official website.
In this article I will show you how to install DiffImg 2.2.0 on Ubuntu 14.10 Utopic Unicorn, Ubuntu 14.04 Trusty Tahr, Linux Mint 17.1 Rebecca, Linux Mint 17 Qiana, Pinguy OS 14.04, Elementary OS 0.3 Freya, Deepin 2014, Peppermint Five, LXLE 14.04, Linux Lite 2 and other Ubuntu 14.10 and Ubuntu 14.04 derivative systems.
Because it is available via PPA, installing DiffImg 2.2.0 on Ubuntu 14.10, Ubuntu 14.04 and derivative systems is easy. All you have to do is add the ppa to your system, update the local repository index and install the diffimg package. Like this:
$ sudo add-apt-repository ppa:dhor/myway
$ sudo apt-get update
$ sudo apt-get install diffimg
Optional, to remove diffimg, do:
$ sudo apt-get remove diffimg