To demonstrate.
Original:
After ImageMagick:
I have some ideas:
- Duplicate the image, crop the duplicate, then flatten the images together
- Reverse mask?
Does anyone have any suggestions?
>Solution :
You can do that in Imagemagick by darkening the whole image, creating a round rectangle mask image, then composite the original with the darkened using the mask image.
Input:
convert pasta.jpg \
\( -clone 0 -brightness-contrast -75,0 \) \
\( -clone 0 -fill white -colorize 100 -fill black -draw "roundrectangle 20,20 80,80 15,15" -alpha off \) \
-compose over -composite \
pasta_rect.jpg
Result:
