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CHANGELOG.md

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Change Log

0.25.0 - 2024-05-19

New features:

  • Added functions template_matching::match_template_with_mask and template_matching::match_template_with_mask_parallel to support masked templates in template matching.
  • Added L2 variant to the distance_transform::Norm enum used to specify the distance function in distance_transfrom::distance_transform and several functions in the morphology module.
  • Added function filter::laplacian_filter using a 3x3 approximation to the Laplacian kernel.
  • Added function stats::min_max() which reports the min and max intensities in an image for each channel.
  • Added support for grayscale morphology operators: grayscale_(dilate|erode|open|close).

Breaking changes:

  • Added ThresholdType parameter to contrast::threshold{_mut} to allow configuration of thresholding behaviour. To match the behaviour of threshold(image, thresh) from imageproc 0.24, use threshold(image, thresh, ThresholdType::Binary).
  • Changed the signature of contrast::stretch_contrast{_mut} to make the output intensity range configurable. To match the behaviour of stretch_contrast(image, lower, upper) from imageproc 0.24, use stretch_contrast(image, lower, upper, 0u8, 255u8).
  • Changed input parameter to convex_hull from &[Point<T>] to impl Into<Vec<Point<T>>>.
  • Removed dependency on conv crate and removed function math::cast. This replaces ValueInto<K> trait bounds with Into<K> in many function signatures.

Bug fixes:

  • Fix panic when drawing large ellipses.
  • Fix BresenhamLineIter panic when using non-integer endpoints.
  • Fix text rendering for overlapping glyphs, e.g. Arabic.
  • Fix Gaussian blur by normalising kernel values.

0.24.0 - 2024-03-16

New features:

  • Added BRIEF descriptors
  • Added draw_antialiased_polygon
  • Added draw_hollow_polygon, draw_hollow_polygon_mut
  • Added contour_area
  • Added match_template_parallel
  • Made Contour clonable
  • Re-export image crate and add image/default as default feature

Performance improvements:

  • Faster interpolate_nearest
  • Faster find_contours_with_threshold
  • Faster approximate_polygon_do
  • Faster rotating_calipers

Bug fixes:

  • Stop window::display_image consuming 100% CPU on Linux

Breaking changes:

  • Migrate text rendering from rusttype to ab_glyph
  • Updated depenedencies
  • Increased MSRV to 1.70

0.23.0 - 2022-04-10

...

0.6.1 - 2016-12-28

  • Fixed bug in draw_line_segment_mut when line extends outside of image bounds.
  • Generalised connected_components to handle arbitrary equatable pixel types.
  • Added support for drawing hollow and filled circles.
  • Added support for drawing anti-aliased lines, and convex polygons.
  • Added adaptive_threshold function.

0.6.0 - 2016-05-07

No change log kept for this or earlier versions.