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Classes | Functions
ocrblock.h File Reference
`#include "img.h"`
`#include "ocrpara.h"`
`#include "ocrrow.h"`
`#include "pdblock.h"`

Go to the source code of this file.

## Classes

class | BLOCK

## Functions

int | decreasing_top_order (const void *row1, const void *row2)
void | PrintSegmentationStats (BLOCK_LIST *block_list)
void | ExtractBlobsFromSegmentation (BLOCK_LIST *blocks, C_BLOB_LIST *output_blob_list)
void | RefreshWordBlobsFromNewBlobs (BLOCK_LIST *block_list, C_BLOB_LIST *new_blobs, C_BLOB_LIST *not_found_blobs)

## Function Documentation

int decreasing_top_order | ( | const void * | row1,
|  | const void * | row2
| ) |  |

decreasing_top_order

Sort Comparator: Return <0 if row1 top < row2 top

Definition at line 72 of file ocrblock.cpp.

{
return (*(ROW **) row2)->bounding_box ().top () -
(*(ROW **) row1)->bounding_box ().top ();
}

void ExtractBlobsFromSegmentation | ( | BLOCK_LIST * | blocks,
|  | C_BLOB_LIST * | output_blob_list
| ) |  |

Definition at line 433 of file ocrblock.cpp.

{
C_BLOB_IT return_list_it(output_blob_list);
BLOCK_IT block_it(blocks);
for (block_it.mark_cycle_pt(); !block_it.cycled_list(); block_it.forward()) {
BLOCK* block = block_it.data();
ROW_IT row_it(block->row_list());
for (row_it.mark_cycle_pt(); !row_it.cycled_list(); row_it.forward()) {
ROW* row = row_it.data();
// Iterate over all werds in the row.
WERD_IT werd_it(row->word_list());
for (werd_it.mark_cycle_pt(); !werd_it.cycled_list(); werd_it.forward()) {
WERD* werd = werd_it.data();
return_list_it.move_to_last();
return_list_it.add_list_after(werd->cblob_list());
return_list_it.move_to_last();
return_list_it.add_list_after(werd->rej_cblob_list());
}
}
}
}

void PrintSegmentationStats | ( | BLOCK_LIST * | block_list | ) |

Definition at line 400 of file ocrblock.cpp.

{
int num_blocks = 0;
int num_rows = 0;
int num_words = 0;
int num_blobs = 0;
BLOCK_IT block_it(block_list);
for (block_it.mark_cycle_pt(); !block_it.cycled_list(); block_it.forward()) {
BLOCK* block = block_it.data();
++num_blocks;
ROW_IT row_it(block->row_list());
for (row_it.mark_cycle_pt(); !row_it.cycled_list(); row_it.forward()) {
++num_rows;
ROW* row = row_it.data();
// Iterate over all werds in the row.
WERD_IT werd_it(row->word_list());
for (werd_it.mark_cycle_pt(); !werd_it.cycled_list(); werd_it.forward()) {
WERD* werd = werd_it.data();
++num_words;
num_blobs += werd->cblob_list()->length();
}
}
}
tprintf("Block list stats:\nBlocks = %d\nRows = %d\nWords = %d\nBlobs = %d\n",
num_blocks, num_rows, num_words, num_blobs);
}

void RefreshWordBlobsFromNewBlobs | ( | BLOCK_LIST * | block_list,
|  | C_BLOB_LIST * | new_blobs,
|  | C_BLOB_LIST * | not_found_blobs
| ) |  |

Definition at line 468 of file ocrblock.cpp.

{
// Now iterate over all the blobs in the segmentation_block_list_, and just
// replace the corresponding c-blobs inside the werds.
BLOCK_IT block_it(block_list);
for (block_it.mark_cycle_pt(); !block_it.cycled_list(); block_it.forward()) {
BLOCK* block = block_it.data();
// Iterate over all rows in the block.
ROW_IT row_it(block->row_list());
for (row_it.mark_cycle_pt(); !row_it.cycled_list(); row_it.forward()) {
ROW* row = row_it.data();
// Iterate over all werds in the row.
WERD_IT werd_it(row->word_list());
WERD_LIST new_words;
WERD_IT new_words_it(&new_words);
for (werd_it.mark_cycle_pt(); !werd_it.cycled_list(); werd_it.forward()) {
WERD* werd = werd_it.extract();
WERD* new_werd = werd->ConstructWerdWithNewBlobs(new_blobs,
not_found_blobs);
if (new_werd) {
// Insert this new werd into the actual row's werd-list. Remove the
// existing one.
new_words_it.add_after_then_move(new_werd);
delete werd;
} else {
// Reinsert the older word back, for lack of better options.
// This is critical since dropping the words messes up segmentation:
// eg. 1st word in the row might otherwise have W_FUZZY_NON turned on.
new_words_it.add_after_then_move(werd);
}
}
// Get rid of the old word list & replace it with the new one.
row->word_list()->clear();
werd_it.move_to_first();
werd_it.add_list_after(&new_words);
}
}
}