- found positive and negative peaks, and even more so their
relative offsets, may overflow in the cropped image,
causing fake textlines; avoid that by clipping to the valid
y coordinates
- calculation for number of tiles: sometimes one less
tile is needed by making the previous last tile
half-full on the right side
- add some (commented) plotting
- simplify (a lot, but only partially)
- relative images now need larger relative min_area
(i.e. compensation factors)
- do not attempt (even) single-line skew estimation
(via linear regression) if there is no (large enough)
contour at all
- avoid re-computing `mask_parent`
- add some (commented) plotting
- re-use Eynollah base class, drop copied code
- simplify `run()` and `run_single()`
- delegate to `do_prediction()`
instead of custom (old) tiling loop
- drop `predict()`
- add `--device` option to CLI as well
- re-use Eynollah base class, drop copied code
- write usable `run()` and `run_single()`
- delegate to `resize_image_with_column_classifier()`
for column classifier, resizing and enhancement,
instead of `resize_and_enhance_image_with_column_classifier()`
(which does _not_ actually enhance)
- drop unused `predict_enhancement()`
- add defaults to `num_col` options (always numeric)
- add `--device` option to CLI as well
use rules from `resize_and_enhance_image_with_column_classifier()`
and apply them to `resize_image_with_column_classifier()` as well
(to be used by enhancer CLI)
instead of hard cut-offs between overlapping window tiles,
apply sigmoid attenuation to slide from one to the next
(apply all postprocessing in the end)
- calculation for number of tiles: sometimes one less
tile is needed by making the previous last tile
half-full on the right side
- calculation of window margins: fix case if dimension
extends to full image shape
- simplify (identifiers, slicing etc)
in `estimate_skew_contours()`, distinguish between angle stats
scattering around <45° vs >45°: in the latter case, use modulo
180° for averages - to avoid cancelling out +90° with -90°
- introduce `config_params` key `reload_weights`
- add respective section for all model types:
- build fresh model from code
- load existing weights from `dir_of_start_model`
- save to `dir_output` under same basename as existing model
(but without optimizer and metrics; which does not work currently)
- exit immediately (i.e. no actual training)
- reorder so reload_weights is after compilation but before data loading
- move `extract_page()` to the start (right after enhancement),
so early layout and textline model prediction sees cropped
image
- `extract_page()`: also return page mask
- `get_early_layout()`:
* use cropped image
* also run optional table prediction here,
map table label and confidence already
(so no need to pass these arrays everywhere)
* suppress all non-text type regions in textline mask
* also return text+table mask
(so no need to reconstruct it everywhere)
- apply page mask to textline mask and early layout result
(i.e. suppress areas beyond border contour)
- `run_graphics_and_columns()`:
* rename → `run_columns()`
* no table prediction here
* no page extraction here
* no page cropping+masking here
* no textline mask suppression here
- `run_graphics_and_columns_without_layout()`: drop
(not needed anymore)
- `run_marginals()` vs. `get_marginals()`: extract
`text_mask` internally from early layout
- early page cropping for col-classifier:
also use cropped image in input binarization mode
- early page cropping for col-classifier:
get external contours instead of indiscriminate tree
- writer: skip layout mode now also uses cropped coordinates
(so drop kwarg for it)
for local (within-box) ordering of region contours, use the same
text mask (merely eroded) as for the contour extraction itself:
the text+table+drop mask from early+full layout prediction,
rather than the textline mask, because the latter may be empty
in some boxes and is unlikely to be more useful than the region
mask itself
