Estimate a homography transformation based on the matches, using

cv$2.$ findHomography $().$ Display the transformed outline of the first reference book cover

image on the query image, to see how well they match.

We provide a function draw$\_$outline$()$ to help with the display, but you may need to edit

it for your needs.

Try the 'least squre method' option to compute homography, and visualize the inliers by

using cv$2.$ drawMatches$().$ Explain your results.

Again, you don't need to compare results numerically at this stage. Comment on what you

observe visually.