Topics

1

General / JPEG XL Quality Support

« on: August 27, 2025, 02:26:39 PM »

According to the manual, JPEG XL is supported but for some reason not every image works.

In my tests, images generated with distances 0 (Lossless) - 2.5 don't load but ones over 2.5 do.

I generated several versions of the same TIFF using this command:

  seq -w 0.0 0.5 6.0 | while read i; do echo $i; tifftopnm 1VAAD00020089.tif | time cjxl - 1VAAD00020089-d${i}.jxl -d $i; done

Attached is a screenshot from Metashape 2.1.2 Build 18358 on MacOS showing thumbnails of all the JPEG XL and original TIFF.

The 2.5 (won't load) and 3.0 (loads fine) can be downloaded here:

https://s3.amazonaws.com/files.vintageaerial.com/1VAAD00020089-d2.5.jxl
https://s3.amazonaws.com/files.vintageaerial.com/1VAAD00020089-d3.0.jxl

Thanks!

2

General / Strange "Radial" DEM/Low Resolution Orthomosaic

« on: August 08, 2025, 05:50:52 PM »

Sometimes, when processing historic air photos, we get a lower than expected resolution (e.g., 9m/px instead of 60cm) and a strange "radial" pattern in the DEM (see attached screenshot). Any ideas what might be causing this?



Thanks!
Kevin

3

General / White Screen when accessing via RustDesk

« on: June 03, 2025, 04:38:30 PM »

Hello!

I am trying to access my machine using RustDesk (open source alternative to TeamViewer). When my monitor is on I can access Metashape with no problem remotely, however when the display is off the app appears as a white screen.

I am using Metashape 2.1.1 Build 17821 on Windows 11 Pro (24H2) with an RTX 3090 running 560.94 Nvidia drivers.

I tried the --opengl angle workaround but it didn't seem to affect things.

4

Python and Java API / Orthomosaic Coordinates to Camera X/Ys

« on: April 13, 2023, 11:37:57 PM »

Is it possible, using some Python, to map a point's coordinate from a generated orthomosaic to a list of cameras that point corresponds to as well as the projected X/Y position in each camera?

5

General / Placing Markers via Basemap

« on: March 20, 2023, 08:18:20 PM »

Is it possible to somehow use the basemap to create markers interactively? I have the center coordinates of photos which gets us close, but I'd like to refine the results by placing markers via a Bing or Google satellite in the basemap. I know they wouldn't be survey-grade, but we have some old photos where if we could just line up a couple roads on the basemap I think we could get better results.

Thanks!

6

Python and Java API / Camera coordinate (x, y) to Orthomosaic coordinate (x, y)

« on: May 31, 2022, 05:31:21 PM »

Is it possible (maybe through pickPoint, camera.transform, etc.) to somehow determine which x, y coordinate in the orthomosaic corresponds to a given camera's x, y coordinate (if any?)

Thanks!

7

Python and Java API / Scripting Rectangle Mask

« on: August 31, 2016, 06:14:05 PM »

I need to mask out the edges of all the cameras in a chunk... basically only selecting the middle and excluding a 500px or so border around the edges... I've created a PNG mask, but since the images can vary in size I was wondering if it's possible to select this rectangle programmatically in a Python script rather than importing masks? And if so, would be faster than importing the mask (seems to take ~2s per 100MB image).

Thanks!

8

General / Geographic type not available in Build Orthomosaic Dialog

« on: April 09, 2016, 05:07:04 PM »

I'm attempting to generate a georeferenced orthomosaic of historic aerial photos, scanned from film. I have approximate center points of each file which I used for the align stage and GCP markers throughout the scene which I hoped would better align the output.

I was able to build a geographic orthomosaic before I introduced the GCP markers, now that option is disabled. Any idea why?

Thanks!