zignal 0.6.0

Highlights

Edge Detection Algorithms

• Canny Edge Detector - Classic multi-stage algorithm with configurable Gaussian smoothing and dual thresholding (defaults: σ=1.4, low=50, high=150)
• Shen-Castan - Advanced edge detection using ISEF smoothing with adaptive gradient computation

Binary Image Operations

• Otsu and adaptive mean thresholding
• Morphological operations: erosion, dilation, opening, closing

Order-Statistic Filters

• Median, min, and max filters for edge-preserving blur

Image Enhancement

• Histogram equalization
• Automatic contrast adjustment

Additional Features

• Canvas draw_image() method for image compositing with blending
• JPEG output support via image.save()

What's Changed

• feat(python): add Shen-Castan edge detection by @arrufat in #168
• feat(image): add image invert method by @arrufat in #169
• refactor(enum): centralize Python enum registration by @arrufat in #170
• refactor(image): extract image to python object conversion by @arrufat in #171
• refactor: python binding utils by @arrufat in #172
• refactor: python arg parsing by @arrufat in #173
• refactor: introduce pycanvas and use parseArgs in canvas by @arrufat in #174
• feat(jpeg): add baseline JPEG encoder with optimized DCT by @arrufat in #175
• feat(image): allow saving images as jpeg by @arrufat in #176
• feat(image): add autocontrast function by @arrufat in #177
• feat(image): add histogram equalization by @arrufat in #178
• feat(python): expose difference of gaussians filter by @arrufat in #179
• refactor(python): standardize object lifecycle and error handling by @arrufat in #180
• refactor(build): improve wheel cleanup and add extension validation by @arrufat in #181
• test(python): standardize test naming and remove redundant docstrings by @arrufat in #182
• refactor(png): unify Adam7 deinterlacing logic for palette images by @arrufat in #183
• feat(canvas): add draw image method by @arrufat in #184
• feat(image): enable blending mode for image insertion by @arrufat in #185
• feat(image): add binary thresholding and morphology by @arrufat in #186
• feat(image): add order-statistic blur filters by @arrufat in #187
• refactor(python): standardize argument parsing by @arrufat in #189
• refactor(py): generalize python type object definitions by @arrufat in #190
• feat: add Canny edge detection algorithm by @arrufat in #191

Full Changelog: 0.5.1...0.6.0