IATH Best Practices Guide to Digital Panoramic Photography: QTVR and Related Technologies


Appendix 3. Image Pre-Processing, Stitching, and Rendering Workflow

  1. Scan/digitize the images as necessary
  2. Evaluate/browse the images, choose images to be processed
  3. Pre-processing:
    • lens correction (barrel distortion, de-vignette, rotate, save as)
    • DXO, Photoshop CS3
    • color space management
    • nb: always work on a copy, not the original file
  4. Stitch
    • REALVIZ Stitcher, QTVRAS, PTBatch, VRWorks, etc.
    • PTMac (creates .txt file to tell itself how to batch - requires precise production)
    • Enblend, blending software
    • batch this step, if desired
  5. Render/Export
    • spherical .tif
    • batch rendering
    • convert w/CubicConverter (batchable)
    • render to cube faces
    • stencil/alpha masks to remove undesireable objects
    • remove tripod in nadir
    • add graphical copyright or watermark
  6. Edit images
    • remove dust, sun flares
    • fix stitching errors (aliasing, jointed areas, ghosting)
    • convert back to spherical to fix seams
    • HDR compositing
    • lengthen skirts or blur faces for cultural or legal requirements
    • nb: when editing digital images in Photoshop, always modify layers and copies, never the original image
  7. Add hot spots and links
    • embed MD and watermarks
    • sprite tracks
    • apply zoom limitation
    • set initial view
  8. Convert panorama
    • into final formats
    • multiple files and formats for access and preservation
    • file size and window size
    • resolution
  9. Back-up

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