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dual-fisheye example for RICOH THETA using theta4j
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README.md

theta4j Fisheye

Uses theta4j library to take dual-fisheye images that retain metadata.

dual fisheye sample

Benefits

  • reduce interval time between shots down to 1 second
  • increase accuracy of unstitched images for specialized image processing

Ideas for Plug-ins

Please copy this code, modify it, submit it to the THETA Store. :-)

Use Cases for Dual-Fisheye Images

  • Interval shooting
  • Star Trails
  • Radiation sensor overlay (or other sensor that records data as a sphere)
  • Measurement of length and distance (if your application needs spherical input)
  • Panorama (using only one sphere)

Stitching

  • PTGui
  • Hugin
  • Ichi Hirota mobile app

Discussion

https://community.theta360.guide/t/dual-fisheye-plug-in-with-camera-metadata-template-for-developers/4529?u=codetricity

Credits

Thanks to Shiro for developing theta4j and making it available.

Metadata from Example Image

ExifTool Version Number         : 10.80
File Name                       : R0010015.JPG
Directory                       : .
File Size                       : 4.6 MB
File Modification Date/Time     : 2019:06:11 13:04:04-07:00
File Access Date/Time           : 2019:06:11 13:06:03-07:00
File Inode Change Date/Time     : 2019:06:11 13:06:01-07:00
File Permissions                : rw-r--r--
File Type                       : JPEG
File Type Extension             : jpg
MIME Type                       : image/jpeg
Exif Byte Order                 : Big-endian (Motorola, MM)
Image Description               : 
Make                            : RICOH
Camera Model Name               : RICOH THETA V
Orientation                     : Horizontal (normal)
X Resolution                    : 300
Y Resolution                    : 300
Resolution Unit                 : inches
Software                        : RICOH THETA V Ver 3.00.1
Modify Date                     : 2019:06:11 13:04:03
Y Cb Cr Positioning             : Centered
Copyright                       : 
Exposure Time                   : 1/200
F Number                        : 2.0
Exposure Program                : Program AE
ISO                             : 80
Sensitivity Type                : Standard Output Sensitivity
Exif Version                    : 0230
Date/Time Original              : 2019:06:11 13:04:03
Create Date                     : 2019:06:11 13:04:03
Components Configuration        : Y, Cb, Cr, -
Aperture Value                  : 2.0
Brightness Value                : 4.91
Exposure Compensation           : 0
Max Aperture Value              : 2.1
Metering Mode                   : Multi-segment
Light Source                    : Unknown
Flash                           : No flash function
Focal Length                    : 2.6 mm
Warning                         : [minor] Possibly incorrect maker notes offsets (fix by -84?)
Maker Note Type                 : Rdc
Firmware Version                : 3.01
Serial Number                   : (00000000)00105377
Recording Format                : Unknown (0)
White Balance                   : Auto
Color Temp Kelvin               : 5000
Accelerometer                   : 2.72 9.3
Compass                         : 339.49
Time Zone                       : -07:00
Flashpix Version                : 0100
Color Space                     : sRGB
Exif Image Width                : 5792
Exif Image Height               : 2896
Interoperability Index          : R98 - DCF basic file (sRGB)
Interoperability Version        : 0100
Exposure Mode                   : Auto
Scene Capture Type              : Standard
Sharpness                       : Normal
GPS Version ID                  : 2.3.0.0
GPS Img Direction Ref           : Magnetic North
GPS Img Direction               : 339.49
Compression                     : JPEG (old-style)
Thumbnail Offset                : 2448
Thumbnail Length                : 12770
Image Width                     : 5792
Image Height                    : 2896
Encoding Process                : Baseline DCT, Huffman coding
Bits Per Sample                 : 8
Color Components                : 3
Y Cb Cr Sub Sampling            : YCbCr4:2:0 (2 2)
Aperture                        : 2.0
Image Size                      : 5792x2896
Megapixels                      : 16.8
Ricoh Pitch                     : 9.3
Ricoh Roll                      : 2.72
Shutter Speed                   : 1/200
Thumbnail Image                 : (Binary data 12770 bytes, use -b option to extract)
Focal Length                    : 2.6 mm
Light Value                     : 10.0
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