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Setting up the data

Setting up the data can be a bit of an involved process. This document aims to provide a step-by-step procedure for setting the data up correctly.

Getting started

The root directory for the data is ./data. The three major portions of the dataset are as follows.

  1. Full 450 image set of 3 LDR exposures w/ corresponding HDR exposure. Download from here (~3Gb).
  2. Precomputed HDR images generated by forward passing through a pretrianed HDRCNN model (see reference). Download from here.
  3. Precomputed HDR images for meta-test generated by forward passing through a pretrianed HDRCNN model (see reference). Download from here.

Final Directory Structure

.
├── ...
├── data 
|   ├── demo_weights                       # Contains a pretrained model for the demo
|   └── LDR-HDR-pair_Dataset               
|       ├── HDR                            # HDR files from original dataset
|       ├── LDR_exposure_0                 # LDR exposures (0 stop) from original dataset
|       ├── LDR_exposure_-2                # LDR exposures (-2 stop) from original dataset
|       ├── LDR_exposure_+2                # LDR exposures (+2 stop) from original dataset
|       ├── TestOutputs                    # HDR outputs for test-set from single-shot simulation
|       ├── UNet_exposure_0                # HDR outputs for train-set from single-shot simulation (0 stop)
|       ├── UNet_exposure_-2               # HDR outputs for train-set from single-shot simulation (-2 stop)
|       └── UNet_exposure_+2               # HDR outputs for train-set from single-shot simulation (+2 stop)
├── ...

Future Suggestions

  • Provide bash script to automatically do this.

References

These are the external references used for this part of the code.

  • Link to original dataset dataset
  • HDR simulation done using this model HDRCNN