OMRChecker v2.0.0

[Udayraj123]

Closes multiple feature requests/issues: #156 #128 #125 #105 #39 #185 #247

• Support for colored outputs! OMRChecker can optionally become colorful with a very small performance overhead :)
• Showing scores, colored verdicts and symbols from the answer key (credits @palash018)
• Major refactoring done around read_response and for general code readability
• Upgraded overall preprocessors structure
• Upgraded CropOnMarkers plugin to support patch areas, blob detection(for the four corners and more), line detection
• Upgraded CropPage preprocessor to correct page curvature slightly (ref)
• Added a top level try catch to mention debug mode
• Introduces the schema for reading barcodes and sorting files
• Support for exporting omr metrics (exportable to a JSON object which can be used for visualisations and calculating quality/confidence scores)
• More refactors:
  • Renamed pageDimensions -> templateDimensions
  • Support for a top level processingImageShape as well as pre-processor level processingImageShape
  • Added conditionalSets in the schema.
  • Rename the fieldType to bubbleFieldType and introduced fieldDetectionType
  • Support multiple images in image utils like resize/normalize, etc
  • support imports in pre-commit hook scripts
  • add auto remove unused imports hook
  • add code coverage module
  • add virtual environment support

Changelogs from #237

• Support for barcode field(pyzbar)
• Refactor drawing classes to enable drawing any field types
• Add a simple launch.json(VScode py debugger)

Changelogs from #186

• update snapshots using pandas to_string()
• feat: support for image snapshots
• feat: use $ref and $def addresses in all schemas
• refactor drawing utils
• refactor: detection logic
• feat: run_sample_fixture
• feat: working save_image_levels for color and grayscale debug stack images

Changelogs from #192

Fixes #190 and #191
Also addresses: #36

• feat: separately merge questions, answers and marking schemes from parent
• feat: basic working conditional set
• feat: pass matched set name

Other Features covered

• feat: template roi gui; created local scripts folder as todo; add new template for conditional sets

• fix: defaultSelector issue

• feat: support for customFieldTypes in template.json; fix template matching issue

• Added support for show_preprocessor_diff{} to display per-processor level before-after images (apart from show_image_level)

• Stabilised autorotate by giving option to crop from preview

• preview can be enabled for all preprocessors in config.json (autorotating sample is available in Autorotating folder in samples)

Changelogs from #197

• add Contrast preprocessor
• add AutoRotate preprocessor
• rename scan areas to scan zones
• template alignment using SIFT and delaunay triangulation
• add phase_correlation_shifts
• foundation for local scripts
• support for output_mode==moderation
• support for section-wise streak marking in evaluation
• fixed utf character issue in windows
• add coverage module

Current Master branch:

~35 Files, 4441 loc == Avg 126.8 lines per file, yet highly coupled code and restricted to bubble fields.

After code merge

~112 Files, 16000 loc == Avg 142.8 lines per file, Yet much more readable, more extensible and full of features.