how to merge two images of different file types?

I want to merge the top two image files to make the one at the bottom.

But no idea how to write up the script. Please help!

Answer 1

[KSSV]

It can be done:

1. Read the image 1 say I1
2. Read the image 2 say I2
3. Get both I1, I2 to same size using imresize, if they are of not same size
4. From second image get positions of black region..with this is mask the first image.

[Soon Lee]

Thank you.

The two images have equal sizes. Do you by any chance know the exact script for doing step 4?

[KSSV]

Use find or equalitites ==.