Repository navigation
feat(patterns): circular zone plate with per-axis scale measurement - #9
Open
repentsinner wants to merge 3 commits into
Open
repentsinner wants to merge 3 commits into
repentsinner wants to merge 3 commits into
Conversation
The plate sweeps from zero frequency at the centre to Nyquist on the largest inscribed circle, mid-grey outside it. zone_plate_scale demodulates a capture by the plate's own phase, which turns every fold a scaler left into a tone at its sampling rate, and reads the scale per axis from that tone's spectral peak. Whether the plate survived between s and 1 - s settles the mirror a once-per-pixel capture carries.
…g by eye The pixel grid lays checkers, stripes on each axis, both diagonals and isolated lines at cell sizes 1 to 8 px, each patch split into quadrants one pixel apart in phase, on a gutter at the patches' mean grey. The scale chart reads a chain's scaling per axis either side of 1:1: beat rulers for an upscale, zoom ladders for a crop-and-enlarge, stripe rulers for a downscale, the pixel grid for what happens to fine detail, and a label naming the raster it was rendered at. Labels draw from a built-in digit font, so the chart stays in the numpy-only core and renders through any array namespace.
…pine The chart font gains capitals and a little punctuation, so every element carries a caption and the top-left corner holds a legend saying how to read each one. The zoom ladders' rungs grow longer and thicker and hang from a spine, so each ladder reads as one object.
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
Summary
circular zone plate with per-axis scale measurement
Changes
feat
Increment type: minor
Target branch: main
Status: 👀
flywheel:needs-review—featis not in auto_merge list formainQuality checks: see required status checks for live state.