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V1.4 - Main Window


The main window of Autopano Pro is divided into three main areas:

  • The main toolbar: contains tools for finding images, saving project files and configuring the interface
  • The Groups View: lists all image groups that will be scanned for existing panoramas
  • The Panoramas View: displays panoramas that have already been detected or loaded from a project file
Screenshot of the Main window

The main toolbar


This toolbar is divided into 4 major parts

  • Projects files management: Pano open.png Pano import.png
  • Panorama detection: Analyse folder.png Analyse pictures.png
  • UI arrangement: SplitMiddle.png SplitLeft.png SplitRight.png
  • Batch render: Batch render.png

The last icon Whatsthis.png provides online help. Just click on this icon, then on the button you want help for.

Project Files (.pano)

The Autopano Pro project file format (extension .pano) is used to save all the panorama settings: images used, color correction parameters, render file format etc.

It is good practice to save your projects in this file format, as it will allow you to work on a panorama again at a later time (for example, render with different settings) without re-detecting. The file is in plain text, and can be read by any text editor.

Autopano Pro also supports the very common PanoTools project file format. You can import from and export to PT.

Pano open.png Opening an Autopano Project

This button (same as File: Open or shortcut Ctrl+o) loads a previously saved Autopano Pro project (also called .pano file).
Note: in the dialog window, you can select and open multiple files.

Pano import.png Importing a Panorama Tools Project

This button (same as File: Import Panotools) allows you to read Panotools projects files: PTGui (.pts), PTAssembler (.ptp) format and Hugin (.pto).
Note: in the dialog window, you can select and import multiple files.

Panorama Detection

Analyse folder.png Browse a folder

This button opens the Browse Folder settings dialog. It allows quick, automated selection of image groups, out of any number of images in a folder (or subfolders). This tool scans the target folder and decides, based on several factors, which files should be grouped into a potential panorama. After the scan is finished, you will get one or more groups in the left hand panel of the program, called the Groups View.

How does it work?

Imagine you just downloaded your vacation photos from your memory card and you're scratching your head, trying to figure out which ones form a panorama, or wondering which photo goes in which image set... Don't worry about that anymore - Autopano Pro can do the job for you!

When you take images while traveling, on vacation, or even as a professional, the shooting date and time are stored in the image file itself, down to the second you took that shot. The usual behavior when shooting panoramas is taking, let’s say, 10 images in a row, then move to another interesting location (or stage of your trip) and take another set of images.

What Autopano Pro does, is check the date and time for each image. It is a fact that, most of the time, images belonging to the same panorama are taken almost at the same time (just a few seconds apart from each other). If an image is on its own, i.e. there are no other images taken at the same time or within the same 10 minutes or an hour, it means the photo is not going to be part of a panorama set.

Using the Browse Folder button, Autopano Pro will group images according to their shooting date and time (and several other factors; see the Options below). It's a fast and convenient alternative to manual sorting, and you can always modify the image groups later.


  • "..." (browse button)
    The input field and the browse button let you select the folder you want to scan for panoramas.
  • Recurse into subfolders
    Check to force Autopano Pro to scan all subfolders contained in the root folder you specified above. Every subfolder will have a separate group of images.
  • Average number of pictures
    Choose an average number of photos in each panorama you shot. This number tells Autopano Pro when the count of images in a group is too big to be a single panorama. Don't forget that you can always move images from one group to another later (or edit groups any way you want) using the Groups View.
  • Maximum time lapse
    Set the maximum allowed difference in shooting time (in seconds) between two consecutive photos. Example: 60 seconds means that any consecutive images, taken within a 1 minute range, probably belong to the same panorama.
  • Don't mix landscape and portrait
    If set, groups will be made of portrait- or landscape-only photos.
  • Auto detection
    Launches the automatic control point detection and Panorama Preview for all groups, after they are composed.
  • Number of threads
    This value indicates the number of simultaneous detections made in parallel. Value of 1 is recommended in case you want to use your computer while Autopano Pro is performing this task. Higher values can give better results with multi-core CPUs.

The grouping algorithm works this way: We have a full set of images sorted by date / time of shooting.

  • if this set size is below the number of picture per group, it stops.
  • if not, we'll find the greatest delay between two consecutive shots for this group.
    • if this greatest delay is below the minimal time lapse, it will not divide this group, as all images were taken with no more than this delay between each shot.
    • if not, you'll get two sub groups.

For the user, you can use this two ways balanced rule in different manner :

Example 1: set the average number of images at 1, set the maximum time lapse at 60 seconds => Any 60 sec. delay between two shots will create a new group.

Example 2: set the average number of images at 10, set the maximum time lapse at 1 second => you will only get groups containing exactly 10 images each.

Note that images in subdirectories are never grouped with images from other subdirectories.

Analyse pictures.png Select images

This button opens a selection dialog where you select the image files directly, not a folder. All selected files are brought together in a single group of the Groups View, and the panorama detection inside this group begins automatically. It is possible that the images you selected produce more than one panorama. Any panoramas detected are displayed in the right hand panel of the screen, called the Panoramas View.

UI Arrangement

Batch Render

Batch render.png: Show or hide the Batch Rendering window.