When a 360 image is not straightened, it can be disorienting to view it. Here is a sample:
Legoland airplane ride – Spherical Image – RICOH THETA
In this shot, I used the effect intentionally, but for most photos, the effect is not desirable.
The Ricoh Theta S has a gyroscope to correct the vertical orientation automatically. However, what the Theta does is to record the pitch, roll and yaw data. When the image is opened in the Theta app or desktop software, the app reads the gyroscope data and renders the image correctly. However, when the image is viewed on another viewer, or if the image is edited, the gyroscope data is either not read or lost entirely, resulting in an uncorrected horizon.
Theta Converter is an Android app (iOS version here) that saves a new copy of your Theta photo with a corrected horizon. There’s a similar desktop app called Level Theta but Theta Converter adds additional capabilities such as re-orienting the photo or tweaking the horizon alignment.
Here’s a sample photo with a tilted horizon.
After installing Theta Converter, you use it by going to your phone’s Gallery app, then tap on “share”. One of the options will be Theta Converter. This will show the Theta Converter interface, which will show a corrected horizon. There are also additional controls on the left side to re-orient the photo (I moved myself to the middle, for example), or to tweak the horizon alignment.
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| 100% crop from original Theta image |
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| 100% crop from Theta Converter image |
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