These are the photos I took and created for this project
6000x4000 Coaster Downscaled to 720x480
Coaster Target Shape
6000x4000 Gum Downscaled to 720x480
Gum Target Shape
Left Picture for Bar
Right Picture for Bar
Left Picture for Pier
Right Picture for Pier
Left Picture for Room
Right Picture for Room
After solving for the inverse homeography matrix, we can apply the matrix to points in our original image, warping the images to the target points we select.
Original Image
Target Image
Rectified Coaster
Original Image
Target Image
Rectified Gum
To blend images into a mosaic, I took two photos with overlapping points. I kept one image still while I warped the second image to points selected from the first. I padded the image with zeros or black pixels to allow extension of the image vertically and horizontally. I have results for no blending and for fixed-alpha blending.
First Pier Image
Second Pier Image
Pier Mosaic - No Blending
Pier Mosaic - Alpha Blending
Pier Mosaic - No Blending (Cropped)
Pier Mosaic - Alpha Blending (Cropped)
First Bar Image
Second Bar Image
Bar Mosaic - No Blending
Bar Mosaic - Alpha Blending
Bar Mosaic - No Blending (Cropped)
Bar Mosaic - Alpha Blending (Cropped)
First Room Image
Second Room Image
Room Mosaic - No Blending
Room Mosaic - Alpha Blending
Room Mosaic - No Blending (Cropped)
Room Mosaic - Alpha Blending (Cropped)
In this part of the project I learned how to use solve for a homeographic transformation matrix and how to use the matrix to change the perspective of an image. Using the matrix and blending techniques, I also learned how to create mosaics from images. I think the most interesting aspect of this project was having to use our own data, our own photos.