Image Compare.

# App to compare two images.

There are 4 compare modes.
- Concurrent: Compare side-by-side .
- Slide: Compare by using slider.
- Opacity: Compare by changing transparent/opacity.
- Difference: Compare by subtracting images.
   - Express: Resize image to screen width before processing.
   - Original: Processing with original scale. It'll take minutes to finish.

# Features
- You can zoom to see the detail on Slide, Opacity, Difference view.
- You can export generated images on Difference view.