|PanGazer – saving images|
PanGazer lets you save the current image file. To do this, select the Save image as ... menu item from the Image menu (or press ‘Ctrl-S’). This will open a dialog box that lets you change the size of the image before saving and also lets you expand a part-spherical panorama to a full sphere.
Note that if the image being saved is spherical then new XMP metadata is always written. This requires a valid North value (see the Setting North page). If North has not been set then PanGazer will assume that North is at the centre of the image, but will prompt you for confirmation of this before saving.
When saving, the image is written to the selected file as a JFIF (JPEG File Interchange Format) file with extension .jpg or .jpeg, including the Exif (Exchangeable image file) metadata, XMP (Extensible Metadata Platform) metadata, and any other metadata that was loaded for the current image. The Exif and XMP metadata might be updated or replaced, as detailed below.
Here is a screenshot of the Save image dialog for a part-spherical image (for non-spherical images, or a full-sphere image, the line with the checkbox is replaced by a description of the image type):
Having made any desired changes, click the Save button. This will create a resized and expanded image, if necessary (this may take a few seconds), and then ask where it should be saved using the usual Windows save dialog.
If any changes to the image geometry (size) were made:
PanGazer updates the following Exif metadata on saving if the values are known or changed (e.g., set using the geography dialog):
If the image is spherical then new XMP metadata is written, including:
Note that the view angles and zoom are also saved as local persistent data when PanGazer is closed, and those saved values will be used when PanGazer is next started and will override values from the XMP metadata. The initial view values from the XMP metadata are, in effect, used when the file was not the last file viewed using PanGazer.
|PanGazer and these web pages were written by Mike Cowlishaw; Please send me any corrections, suggestions, etc.|
All content Copyright © Mike Cowlishaw,
2014–2020, except where marked otherwise. All rights reserved.
The pages here, and the PanGazer program, are for non-commercial
This page was last updated on 2020-02-20 by mfc.