Find Images With No GPS Coordinates

In a previous post,  we searched for files with no Spotlight comment or tags. Today,  we are looking for photos with no GPS latitude or longitude information.

The technique we used last time works for any metadata attribute containing text. For example: subject, author, album, etc. It does not work for number or date values. HoudahSpot won’t let us use the “*” wildcard character in the criteria editor. It expects us to enter a number or a date.

Since latitude and longitude are both numbers, we need to use a slightly different technique. We will make us of some of the more advanced features of the HoudahSpot search field. This is located in the toolbar of the search window.

Continue reading Find Images With No GPS Coordinates

Keeping Geotags When Dragging Images From Apple Photos

If you’re dragging geotagged images from Apple’s Photos application, there’s a setting you need to enable if you wish to share your photos’ locations. Otherwise, your pictures’ geoinformation will be stripped from the files. Continue reading Keeping Geotags When Dragging Images From Apple Photos

Photos on a Map in Google Photos

Google Photos has a pretty nice way of displaying your geotagged photos, with a map and other metadata info. In Google Maps, click on the “i” in the menu bar. A sidebar containing information will appear.

Google Photos with Info

This feature is especially nice for sharing photos with family and friends. If you want them to see where your photos were taken, you’ll need to make sure the setting “Remove geo location in items shared by link” is off. Continue reading Photos on a Map in Google Photos

Geotag your photos automatically – part 3

In part 1 of this blog post series, we discussed how you can use reference photos to speed up your geocoding process. The easiest, fastest and most precise way to geotag your photos, however, is to provide HoudahGeo with a so called track log file. While there are smartphone apps which record track logs (as discussed in part 2), these may drain your phone’s battery if left running over a prolonged period of time. Therefore, you may want to consider investing in a GPS track logger.

Part 3 – Geocoding using a GPS track logger

Continue reading Geotag your photos automatically – part 3

Geotag your photos automatically – part 2

In part 1 of this blog post series, we looked at how you can use your GPS enabled smartphone to get geotags on your regular camera pictures. There is, however, a more sophisticated way to put your smartphone to use. It’s an app called gps4cam pro.

Part 2 – Geocoding using the smartphone app gps4cam

Continue reading Geotag your photos automatically – part 2

Geotag your photos automatically – part 1

Vacation time is coming! Wherever your travels will take you: You will, for sure, be taking a lot of pictures.

Sandy beach with two sunbeds

But: If your camera is not equipped with a built-in GPS, your pictures will lack location information. You could geotag these images by hand. This can be a lot of work and quite time-consuming. So, how can you add geotags more easily to your photos?

In a three-part series of blog posts, we will explore three options HoudahGeo offers to automate your photo geocoding process.

Part 1 – Geocoding from reference photos

Continue reading Geotag your photos automatically – part 1

Geotag photos for the Apple Photos application

This post no longer applies to Apple Photos 2.0 under macOS 10.12 Sierra. HoudahGeo 5.1 can now add location information to photos in the Photos library.

The most common workflow for geotagging photos with HoudahGeo is:

  1. Import photos into iPhoto or Aperture
  2. Geocode the photos using HoudahGeo
  3. Write geotags to the original image files
  4. Notify iPhoto or Aperture of the newly added geotags

The new Apple Photos application lacks the programmatic interface needed for HoudahGeo to notify it of changes made to geotags.

Until this issue is resolved, we recommend that you geotag your photos before importing them into the Photos library.

Continue reading Geotag photos for the Apple Photos application

View your photos in Google Earth

Geocoding photos serves two main purposes:

  • Geotags provide extra information that can be used to catalog and find photos. Years from now, you may not remember when you took the photo you are looking for. But you will remember roughly where you took it
  • Geotags add to the “story” of a photo. With the photo pinned to a map, you can see the exact spot where it was taken. Add a GPS track log to see how you got there

One way to view and show geotagged photos is to create a Google Earth file with both the photos and the GPS track log. Now you have a bird’s eye view of your trip and the spots where you stopped to take photos.

Kenya Safari Continue reading View your photos in Google Earth

Automatic geocoding: Camera clock setup

Digital cameras record the exact time each photo was taken. HoudahGeo relies on this information to match photos to a GPS track log. Unfortunately most digital cameras fail to specify which time zone the recorded time is expressed in. I.e for a photo taken at noon, HoudahGeo cannot tell if it was noon in Los Angeles, or in Luxembourg, etc.

HoudahGeo thus needs a little help to make sense of the camera timestamps. Getting camera clock setup right is essential for automatic geocoding to work.

Continue reading Automatic geocoding: Camera clock setup