PanGazer – saving images
PanGazer lets you save the current image file. To do this, you can either:
In all cases, 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. Note that if the image being saved is spherical then new XMP metadata are always written; in this case the XMP metadata requires a North value (see the Setting North page) so, if North has not been set explicitly, PanGazer will set North at the centre of the image in the XMP metadata (but will not assume that value for North when next loading the saved image).
In addition, 360° images will, by default, be saved with the centre (left↔right) of the image matching the centre of the view at the time of the save. This gives a better result with some viewing platforms and also improves the image when viewed with a non-360° viewer. You can switch this behaviour using the Settings → Image load and save → Save 360° images rotated to view menu item.
If the original image was not a JPEG image or if the image had to be re-compressed for any reason then a JPEG Quality of 90% is used.
The PanGazer ‘Resize and Save image’ dialog box
Here is a screenshot of the PanGazer Resize and Save image dialog for a part-spherical image (for non-spherical images, or full-sphere images, 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 will then open the Windows file save dialog box for saving the image.
If any changes to the image size were made:
Note: the final view angles and zoom are 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 Exif or XMP metadata. The initial view values from the XMP metadata are, therefore, only used when the image was not the last image viewed using PanGazer, or if you select the Reset viewpoint menu item from the View menu or from the pop-up menu, or you press the ‘r’ key.
|PanGazer and these web pages were written by Mike Cowlishaw; Please send me any corrections, suggestions, etc.
All content Copyright © Mike Cowlishaw,
2014–2024, except where marked otherwise. All rights reserved.
The pages here, and the PanGazer program, are for non-commercial
This page was last updated on 2023-11-02 by mfc.