Make ch3_panorama at least 8x as fast. #9
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
ch3_panorama now runs in less than 1 minute, instead of > 8min (after which I killed it). The output should be the same as before. Do this by doing the perspective image mapping using PIL instead of scipy. Also fix a FIXME about x and y being swapped (since this wasn't mentioned in the bug, this was pretty confusing to me), since that's no longer necessary.
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Since you're accepting pull requests, here's another one :-)
Your ch3_panorama.py took more than 8 minutes to run (after which I killed it). My version runs in 3 seconds. This was by far the biggest win.
If you're interested in further speedups, feel free to look at https://github.com/nico/cvbook/commits/master (nico/cvbook@349b236 and nico/cvbook@31a56c3 are simple and effective for example.