# hdr-plus

**Repository Path**: smartadpole/hdr-plus

## Basic Information

- **Project Name**: hdr-plus
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: MIT
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2021-08-25
- **Last Updated**: 2021-08-25

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

Note: The user "Titaniumtown" is now the primary maintainer of this repository; if you need to contact the owner contact "Titaniumtown".

# HDR+ Implementation
Original Document on the subject (by Timothy Brooks): http://timothybrooks.com/tech/hdr-plus

### Compilation instructions:
1. Install libraw, libpng, and libjpeg.¹
2. Download and compile llvm 3.9
3. Install or compile the latest version Halide
4. Go the folder you have the hdr-plus code in.
5. From the project root directory, run the following commands:
```
mkdir build
cd build
cmake -DHALIDE_DISTRIB_DIR=$(Insert halide directory) ..
make -j$(expr $(nproc) \+ 1)
```

### HDR+ algorithm examples:

There are three zip files with examples of the HDR+ algorithm at: http://www.gardling.com/hdr_plus

### Compiled Binary Usage:
```
Usage: ./hdrplus [-c comp -g gain (optional)] dir_path out_img raw_img1 raw_img2 [...]
```

The -c and -g flags change the amount of dynamic range compression and gain respectively. Although they are optional because they both have default values. 

### Footnotes:
  
¹Also to install libraw, libpng, and libjpeg on macOS run ```brew install libraw libpng libjpeg```