imageproc

What's Changed

Bug fixes:

• Fix out-of-bounds reads in BRIEF by @Shnatsel in #778
• Fix u32 overflow in Kernel::new dimension check by @paolobarbolini in #777

Breaking changes:

• Rework of interpolation boundary behaviour by @Quickmarble in #769
• warp*() functions: pass Projection by value by @Quickmarble in #773

Performance improvements:

• Bilateral speedup by @CattleProdigy in #766

New Contributors

• @Quickmarble made their first contribution in #769
• @CattleProdigy made their first contribution in #766
• @Shnatsel made their first contribution in #778
• @JakobZahn made their first contribution in #782
• @gbouv made their first contribution in #787

Full Changelog: v0.26.1...v0.27.0

Bug fixes:

• Fix out-of-bounds reads in BRIEF by @Shnatsel in https://github.com/image-rs/imageproc/pull/778
• Fix u32 overflow in Kernel::new dimension check by @paolobarbolini in https://github.com/image-rs/imageproc/pull/777

Breaking changes:

• Rework of interpolation boundary behaviour by @Quickmarble in https://github.com/image-rs/imageproc/pull/769
• warp*() functions: pass Projection by value by @Quickmarble in https://github.com/image-rs/imageproc/pull/773

Performance improvements:

• Bilateral speedup by @CattleProdigy in https://github.com/image-rs/imageproc/pull/766

Bug fixes:

• fix compose::overlay pixel blending by @cospectrum in #754
• fix compose::overlay boundary calculations by @cospectrum in #754
• fix compose::replace boundary calculations by @cospectrum in #754

Bug fixes:

• fix compose::overlay pixel blending by @cospectrum in https://github.com/image-rs/imageproc/pull/754
• fix compose::overlay boundary calculations by @cospectrum in https://github.com/image-rs/imageproc/pull/754
• fix compose::replace boundary calculations by @cospectrum in https://github.com/image-rs/imageproc/pull/754

New features

• Add AverageHash by @cospectrum
• Add PHash by @cospectrum in #709
• Make hough::intersection_points public by @theotherphil in #613
• Color Bilateral Filter by @ripytide in #606
• Parallel Pixel Maps by @ripytide in #602
• Add filter_map_parallel by @ripytide in #642
• Add compose module and functions by @ripytide in #662
• Add rotation module and functions by @ripytide in #669
• Add replace() and overlay() functions by @ripytide in #666
• Expand stetch_contrast() to color images also using u8 by @ripytide in #670
• Flood-fill by @tkallady in #684
• Implement Kapur's algorithm for binary thresholding (#696) by @o-tho in #699
• Add rotate_about_center_no_crop to prevent pixel loss during image rotations by @Tikitikitikidesuka in #688

Performance improvements

• Improved draw_text_mut performance by @Icekey in #663

Breaking changes

• Removed filter3x3, use Kernel + filter_clamped instead
• Add delta parameter to adaptive_threshold by @Dantsz in #637
• Make external dependencies optional by @OrangeHoopla in #736
• MSRV v1.87 / 2024 Edition / nalgebra v0.34 by @paolobarbolini in #748

Bug fixes

• fix draw_filled_rect panic for empty image by @cospectrum in #711
• fix text_size by @cospectrum in #689
• rewrite column_running_sum with better safety by @cospectrum in #731
• Fix fast corner 9 algorithm by @LMJW in #680
• handle polygon draw case where start point equals end point by @fs-99 in #682
• Detailed error message for generic type parameter of find_contours_with_threshold (#694) by @sakird in #695
• fix integration tests by @bioinformatist in #739

New features:

• Add AverageHash by @cospectrum
• Add PHash by @cospectrum in https://github.com/image-rs/imageproc/pull/709
• Make hough::intersection_points public by @theotherphil in https://github.com/image-rs/imageproc/pull/613
• Color Bilateral Filter by @ripytide in https://github.com/image-rs/imageproc/pull/606
• Parallel Pixel Maps by @ripytide in https://github.com/image-rs/imageproc/pull/602
• Add filter_map_parallel by @ripytide in https://github.com/image-rs/imageproc/pull/642
• Add compose module and functions by @ripytide in https://github.com/image-rs/imageproc/pull/662
• Add rotation module and functions by @ripytide in https://github.com/image-rs/imageproc/pull/669
• Add replace() and overlay() functions by @ripytide in https://github.com/image-rs/imageproc/pull/666
• Expand stetch_contrast() to color images also using u8 by @ripytide in https://github.com/image-rs/imageproc/pull/670
• Flood-fill by @tkallady in https://github.com/image-rs/imageproc/pull/684
• Implement Kapur's algorithm for binary thresholding (#696) by @o-tho in https://github.com/image-rs/imageproc/pull/699
• Add rotate_about_center_no_crop to prevent pixel loss during image rotations by @Tikitikitikidesuka in https://github.com/image-rs/imageproc/pull/688

Performance improvements:

• Improved draw_text_mut performance by @Icekey in https://github.com/image-rs/imageproc/pull/663

Breaking changes:

• Removed filter3x3, use Kernel + filter_clamped instead
• Add delta parameter to adaptive_threshold by @Dantsz in https://github.com/image-rs/imageproc/pull/637
• Make external dependencies optional by @OrangeHoopla in https://github.com/image-rs/imageproc/pull/736
• MSRV v1.87 / 2024 Edition / nalgebra v0.34 by @paolobarbolini in https://github.com/image-rs/imageproc/pull/748

Bug fixes:

• fix draw_filled_rect panic for empty image by @cospectrum in https://github.com/image-rs/imageproc/pull/711
• fix text_size by @cospectrum in https://github.com/image-rs/imageproc/pull/689
• rewrite column_running_sum with better safety by @cospectrum in https://github.com/image-rs/imageproc/pull/731
• Fix fast corner 9 algorithm by @LMJW in https://github.com/image-rs/imageproc/pull/680
• handle polygon draw case where start point equals end point by @fs-99 in https://github.com/image-rs/imageproc/pull/682
• Detailed error message for generic type parameter of find_contours_with_threshold (#694) by @sakird in https://github.com/image-rs/imageproc/pull/695
• fix integration tests by @bioinformatist in https://github.com/image-rs/imageproc/pull/739

• Update changelog, rename scale_linear to stretch_contrast and edit docs for stretch_contrast and grayscale morphology operations
• Tweak template matching docs

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.

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

Update crate version (#494)

...

• 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.

No change log kept for this or earlier versions.