#include <linefind.h>
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| static void | FindAndRemoveLines (int resolution, bool debug, Pix *pix, int *vertical_x, int *vertical_y, Pix **pix_music_mask, TabVector_LIST *v_lines, TabVector_LIST *h_lines) |
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| static void | ConvertBoxaToBlobs (int image_width, int image_height, Boxa **boxes, C_BLOB_LIST *blobs) |
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| static void | FindAndRemoveVLines (int resolution, Pix *pix_intersections, int *vertical_x, int *vertical_y, Pix **pix_vline, Pix *pix_non_vline, Pix *src_pix, TabVector_LIST *vectors) |
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| static void | FindAndRemoveHLines (int resolution, Pix *pix_intersections, int vertical_x, int vertical_y, Pix **pix_hline, Pix *pix_non_hline, Pix *src_pix, TabVector_LIST *vectors) |
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| static void | FindLineVectors (const ICOORD &bleft, const ICOORD &tright, BLOBNBOX_LIST *line_bblobs, int *vertical_x, int *vertical_y, TabVector_LIST *vectors) |
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| static void | GetLineMasks (int resolution, Pix *src_pix, Pix **pix_vline, Pix **pix_non_vline, Pix **pix_hline, Pix **pix_non_hline, Pix **pix_intersections, Pix **pix_music_mask, Pixa *pixa_display) |
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| static void | GetLineBoxes (bool horizontal_lines, Pix *pix_lines, Pix *pix_intersections, C_BLOB_LIST *line_cblobs, BLOBNBOX_LIST *line_bblobs) |
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The LineFinder class is a simple static function wrapper class that mainly exposes the FindVerticalLines function.
◆ ConvertBoxaToBlobs()
| void tesseract::LineFinder::ConvertBoxaToBlobs |
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int |
image_width, |
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int |
image_height, |
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Boxa ** |
boxes, |
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C_BLOB_LIST * |
blobs |
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) |
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static |
Converts the Boxa array to a list of C_BLOB, getting rid of severely overlapping outlines and those that are children of a bigger one.
The output is a list of C_BLOBs that are owned by the list.
The C_OUTLINEs in the C_BLOBs contain no outline data - just empty bounding boxes. The Boxa is consumed and destroyed.
◆ FindAndRemoveHLines()
| void tesseract::LineFinder::FindAndRemoveHLines |
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int |
resolution, |
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Pix * |
pix_intersections, |
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int |
vertical_x, |
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int |
vertical_y, |
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Pix ** |
pix_hline, |
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Pix * |
pix_non_hline, |
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Pix * |
src_pix, |
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TabVector_LIST * |
vectors |
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) |
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staticprivate |
◆ FindAndRemoveLines()
| void tesseract::LineFinder::FindAndRemoveLines |
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int |
resolution, |
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bool |
debug, |
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Pix * |
pix, |
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int * |
vertical_x, |
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int * |
vertical_y, |
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Pix ** |
pix_music_mask, |
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TabVector_LIST * |
v_lines, |
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TabVector_LIST * |
h_lines |
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) |
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static |
Finds vertical and horizontal line objects in the given pix and removes them.
Uses the given resolution to determine size thresholds instead of any that may be present in the pix.
The output vertical_x and vertical_y contain a sum of the output vectors, thereby giving the mean vertical direction.
If pix_music_mask != nullptr, and music is detected, a mask of the staves and anything that is connected (bars, notes etc.) will be returned in pix_music_mask, the mask subtracted from pix, and the lines will not appear in v_lines or h_lines.
The output vectors are owned by the list and Frozen (cannot refit) by having no boxes, as there is no need to refit or merge separator lines.
The detected lines are removed from the pix.
◆ FindAndRemoveVLines()
| void tesseract::LineFinder::FindAndRemoveVLines |
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int |
resolution, |
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Pix * |
pix_intersections, |
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int * |
vertical_x, |
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int * |
vertical_y, |
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Pix ** |
pix_vline, |
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Pix * |
pix_non_vline, |
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Pix * |
src_pix, |
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TabVector_LIST * |
vectors |
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) |
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staticprivate |
◆ FindLineVectors()
| void tesseract::LineFinder::FindLineVectors |
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const ICOORD & |
bleft, |
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const ICOORD & |
tright, |
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BLOBNBOX_LIST * |
line_bblobs, |
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int * |
vertical_x, |
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int * |
vertical_y, |
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TabVector_LIST * |
vectors |
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) |
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staticprivate |
◆ GetLineBoxes()
| void tesseract::LineFinder::GetLineBoxes |
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bool |
horizontal_lines, |
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Pix * |
pix_lines, |
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Pix * |
pix_intersections, |
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C_BLOB_LIST * |
line_cblobs, |
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BLOBNBOX_LIST * |
line_bblobs |
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) |
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staticprivate |
◆ GetLineMasks()
| void tesseract::LineFinder::GetLineMasks |
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int |
resolution, |
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Pix * |
src_pix, |
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Pix ** |
pix_vline, |
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Pix ** |
pix_non_vline, |
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Pix ** |
pix_hline, |
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Pix ** |
pix_non_hline, |
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Pix ** |
pix_intersections, |
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Pix ** |
pix_music_mask, |
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Pixa * |
pixa_display |
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) |
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staticprivate |
The documentation for this class was generated from the following files:
- /home/stephane/src/tesseract/src/textord/linefind.h
- /home/stephane/src/tesseract/src/textord/linefind.cpp
1.8.13