Change the formats of the images : fisheye vs equirectangular

Mehdi_Zayene · July 6, 2023, 1:06pm

Hello team,
is there a way to change the ricoh theta V parameters to make it take pictures in dual fisheye format and not equirectangular please ?

Thank you all,
Mehdi

craig · July 6, 2023, 3:17pm

Yes, use _imageStitching. Let me know if you need an example.

github.com

ricohapi/theta-api-specs/blob/main/theta-web-api-v2.1/options/_image_stitching.md

# \_imageStitching

### Overview

Still image stitching setting during shooting.

Can be acquired by [camera.getOptions](../commands/camera.get_options.md) and set by [camera.setOptions](../commands/camera.set_options.md).

### Support model

| X | Z1 | V | SC | S |
|:--|:--|:--|:--|:--|
| All | All | v3.00.1 or later | --- | --- |

### Support value

| Key | Description |
|:--|:--|
| auto | Refer to stitching when shooting with "auto" |
| static | Performs static stitching |

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Mehdi_Zayene · October 25, 2023, 4:14pm

Hi craig, thank you. I wanted to also know if there is a way to convert Ricoh Theta V Equirec images into Dual fish-eye images and the other way around ?

This would help a lot thank you

craig · October 25, 2023, 4:26pm

Several people on this forum are doing similar tasks, but I don’t have a good reference to a python library.

The lens distortion parameters are not disclosed. You won’t be able to get a perfect stitch or unstitch unless you calibration each camera separately and save the calibration in a data file.

Maybe other people can provide tips to libraries that they’ve used.