Restore antialiasing to downscaling in thumbnail generation#251
Merged
Conversation
Skipping antialiasing here for speed turns out to have been a poorly reasoned decision. The aliased images exhibited much less correlation than correctly antialiased ones, making it easier for image artifacts to corrupt the alignment. Also, with antialiasing enabled, we no longer need to use gaussian blur when computing the whitened image for phase correlation.
This file contains hidden or 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
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
Skipping antialiasing here for speed turns out to have been a poorly reasoned decision. The aliased images exhibited much less correlation than correctly antialiased ones, making it easier for image artifacts to corrupt the alignment. Also, with antialiasing enabled, we no longer need to use gaussian blur when computing the whitened image for phase correlation.