Label images with ground truth

[sedflix]

We will need to label images with ground truth irrespective of the benchmarking techniques we are going to use. These labeled images will be useful when we try machine learning based approach in future.

• [x] Decide what would the ground truth look like @balicea I would need your inputs here.
• [x] Decide images to be labeled
• [x] Decide the software to label images
• [x] Label images

[sedflix]

Around 20 images have been labeled.