# Seam Carving


Augustin Lucas, François Colin de Verdière


Git repo: [https://gitea.augustin64.fr/m1-ENSL/seam-carving](https://gitea.augustin64.fr/m1-ENSL/seam-carving)

The report is available as PDF file [report.pdf](report.pdf)

## References:
- [Seam carving for content-aware image resizing](https://perso.crans.org/frenoy/matlab2012/seamcarving.pdf)

## Build

```bash
mkdir -p build  # Create build dir if needed
cd build
cmake ..        # Update build/Makefile
make            # Compile
cd ..
```

## Usage

```bash
build/seam-carving ...
```

Mandatory arguments: 

- `-s FILE`: source image
- `-o FILE`: output image

Options: 
- `-m FILE`: the mask. RGB image, of the same size than the source, red pixel are those to be removed, the green ones must be kept. 
- `-n NUMBER`: number of seams to compute or remove (default 0)
- `--show-seams`: do not carve the image, only outputs the energy and the relevant seams
- `-f FUNCTION NAME`: the energy function to use, see the [beginning of the source file to see the available functions](src/seam-carving.cpp)
- `-u`: when a mask is provided and no seam number is provided, remove seams until the zone to remove has disappeared. 

## Generation of the images of the report

A `Makefile` is provided at the root of the repo, it can be used to generate the images that are shown in the report.