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ScanTailor OCR 1.0.9

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@github-actions github-actions released this 18 Oct 13:06
v1.0.9
2d1aa7a

What's new

Project files

  • Projects are saved as version 10. Projects of ScanTailor Advanced 1.2 and of older versions of ScanTailor OCR (version 4) still open. ScanTailor Advanced no longer opens projects saved by ScanTailor OCR, so it can't drop their additional settings.
  • Projects are saved safely: the old file is replaced only when the new one is completely written.

Split Pages: page order

  • New group "Page Order" (left half first or right half first) with picture buttons, for the whole project. It replaces the menu item "Reverse Two-Page Spread Order" and the check box "Right to left layout".
  • Switching renames the existing output files and thumbnails, so they aren't created again.
  • The Default Parameters window sets the page order of new projects.

Missing images and Fix DPI

  • When images of a project are missing, the relinking window opens: the output folder and a tree of the image folders with "Show missing only". A folder or file is relinked as a whole, with a path field or "Locate ...". Changes apply at once.
  • Fix DPI of All Images shows one folder tree with traffic light icons and the filter "Show only pages that need fixing".

Output

  • "Reduce colors" (None, Posterize, K-means) under "Color Operations": K-means reduces colored text to a few clean colors (idea from ScanTailor Experimental).
  • "Colored" for all binarization methods: darkens colored pixels so colored text comes out black; negative values lighten them, so colored stamps or highlighter marks disappear. The lower and upper bounds apply to all methods.
  • Removing pages, replacing a scan or switching between one and two pages deletes the output files in all folders together with their thumbnails.
  • Dewarping prefers models that make the text lines horizontal.

Select Content

  • New option "Ignore page box during detection": text touching the page box is no longer removed with the border. Taken from ScanTailor Advanced pull request ScanTailor-Advanced#182.

Deskew

  • The oblique correction now shears by the whole measured angle instead of half of it. Manual oblique angles of older projects now shear twice as much.
  • Switching oblique to "Auto" measures the page.

Other

  • Settings: one limit "Processor threads" for all parallel work.
  • The window title shows the version.
  • All texts and the German translation reviewed for consistent names. Only English and German remain; the six incomplete translations were removed.
  • Icons and thumbnails are sharp on scaled screens.

Fixes

  • A change that kept the file size closed the project without asking; "Save" closed the project even when saving failed.
  • Inserting pages next to split scans, the order of several inserted files, a crash in "Go to Page".
  • File names with long numbers (e.g. time stamps) are sorted correctly. This can change the page order in projects with inconsistent file names.
  • An endless loop in dewarping with short text lines.
  • Many smaller fixes found by static analysis (compiler warnings, clang-tidy, cppcheck, sanitizers, CodeQL).

Downloads

  • Windows: portable ZIP, unpack and run scantailor-ocr.exe.
  • Linux: .deb package and AppImage, built automatically and untested.

Full Changelog: v1.0.8...v1.0.9

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