Image Warping and Mosaicing, Part 1

Aditya Yadav

Full Example 1

These are the two images I used for this first example to showcase image stitching and rectification:

This is what it looks like after I took image 1 (the left image) and rectified it by taking a window pane and matching it to square coordinates:

This is what it looks like after manually picking 8 corresponding points between the two images and warping image 1 accordingly to image 2's geometry:

And finally this is their combined mosaic with some alpha blending:

Some notes:

• The blending can be done better for sure. This is a very simple blend using a simple gradient mask per image.
• Also, for the rectification, in this case I did not crop the result to the window, but I will show an example where I specify the bouding regions to make it clearer.

Full Example 2

These are the two images I used for this second example to showcase image stitching and rectification:

This is what it looks like after I took image 1 (the left image) and rectified it by taking the calendar in the top left and matching it to square coordinates:

This is what it looks like after manually picking 8 corresponding points between the two images and warping image 1 accordingly to image 2's geometry:

And finally this is their combined mosaic with some alpha blending:

Some notes:

• The blending can again be done better.
• This is a case where, for the rectification, I only sought the result for the specific portion of the image I wanted rectified. I supplied the bouding regions in this case.

Fun Rectification Example

I decided to try making the mural in this image into a square in order to see it a bit more clearly:

This is the result after rectification: