Golden Gate Bridge

While learning how to use hdrprep, qtpfsgui, etc., to create a HDR image from auto-bracketed LDR images, I ended up with this surreal picture.

Notes for archival purpose:
1. Use hdrprep to create aligned images.
2. Load images in qtpfsgui.
3. Use the defaults to create a HDR.
4. Generate two tone-mapped images, one using the Mantiuk, et. al. algo & the other using the Fattal et.al. algorithm.
5. In Gimp, load the above two images as two layers with Fattal as the top layer.
6. Set the Fattal layer to use Grain Merge mode at 100% opacity.
7. Export merged image.

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