[tesseract-ocr] Re: Unrecognized lines using psm 3
I found the function that puts everything on the table, with regard to the
scrollview blob debug window...
ccstruct/blobbox.cpp:
ScrollView::Color BLOBNBOX::TextlineColor(BlobRegionType region_type,
BlobTextFlowType flow_type) {
switch (region_type) {
case BRT_HLINE:
return ScrollView::BROWN;
case BRT_VLINE:
return ScrollView::DARK_GREEN;
case BRT_RECTIMAGE:
return ScrollView::RED;
case BRT_POLYIMAGE:
return ScrollView::ORANGE;
case BRT_UNKNOWN:
return flow_type == BTFT_NONTEXT ? ScrollView::CYAN : ScrollView::
WHITE;
case BRT_VERT_TEXT:
if (flow_type == BTFT_STRONG_CHAIN || flow_type == BTFT_TEXT_ON_IMAGE)
return ScrollView::GREEN;
if (flow_type == BTFT_CHAIN)
return ScrollView::LIME_GREEN;
return ScrollView::YELLOW;
case BRT_TEXT:
if (flow_type == BTFT_STRONG_CHAIN)
return ScrollView::BLUE;
if (flow_type == BTFT_TEXT_ON_IMAGE)
return ScrollView::LIGHT_BLUE;
if (flow_type == BTFT_CHAIN)
return ScrollView::MEDIUM_BLUE;
if (flow_type == BTFT_LEADER)
return ScrollView::WHEAT;
if (flow_type == BTFT_NONTEXT)
return ScrollView::PINK;
return ScrollView::MAGENTA;
default:
return ScrollView::GREY;
}
}
and some detailed description on what it all means...
// The possible region types of a BLOBNBOX.
// Note: keep all the text types > BRT_UNKNOWN and all the image types less.
// Keep in sync with kBlobTypes in colpartition.cpp and BoxColor, and the
// *Type static functions below.
enum BlobRegionType {
BRT_NOISE, // Neither text nor image.
BRT_HLINE, // Horizontal separator line.
BRT_VLINE, // Vertical separator line.
BRT_RECTIMAGE, // Rectangular image.
BRT_POLYIMAGE, // Non-rectangular image.
BRT_UNKNOWN,// Not determined yet.
BRT_VERT_TEXT, // Vertical alignment, not necessarily vertically
oriented.
BRT_TEXT, // Convincing text.
BRT_COUNT // Number of possibilities.
};
// BlobTextFlowType indicates the quality of neighbouring information
// related to a chain of connected components, either horizontally or
// vertically. Also used by ColPartition for the collection of blobs
// within, which should all have the same value in most cases.
enum BlobTextFlowType {
BTFT_NONE, // No text flow set yet.
BTFT_NONTEXT,// Flow too poor to be likely text.
BTFT_NEIGHBOURS, // Neighbours support flow in this direction.
BTFT_CHAIN, // There is a weak chain of text in this direction.
BTFT_STRONG_CHAIN, // There is a strong chain of text in this direction.
BTFT_TEXT_ON_IMAGE, // There is a strong chain of text on an image.
BTFT_LEADER, // Leader dots/dashes etc.
BTFT_COUNT
};
So, it thinks there is an image in there somehow and all I did to fix it
was to bypass an if statement.
diff --git a/textord/colfind.cpp b/textord/colfind.cpp
index ea5d73d..3b4246e 100644
--- a/textord/colfind.cpp
+++ b/textord/colfind.cpp
@@ -309,7 +309,7 @@ int ColumnFinder::FindBlocks(PageSegMode pageseg_mode,
Pix* scaled_color,
stroke_width_->GradeBlobsIntoPartitions(
pageseg_mode, rerotate_, input_block, nontext_map_, denorm_,
cjk_script_,
&projection_, diacritic_blobs, &part_grid_, &big_parts_);
- if (!PSM_SPARSE(pageseg_mode)) {
+ if (!PSM_SPARSE(pageseg_mode) && 0) {
ImageFind::FindImagePartitions(photo_mask_pix, rotation_, rerotate_,
input_block, this, &part_grid_, &
big_parts_);
ImageFind::TransferImagePartsToImageMask(rerotate_, &part_grid_,
I think the `&& 0` should be replaced with an `&& init_var` and mainlined.
Something like textord_imagefind. Any comments, suggestions?
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[tesseract-ocr] Re: Unrecognized lines using psm 3
I found the function that puts everything on the table, with regard to the
scrollview blob debug window...
ccstruct/blobbox.cpp:
ScrollView::Color BLOBNBOX::TextlineColor(BlobRegionType region_type,
BlobTextFlowType flow_type) {
switch (region_type) {
case BRT_HLINE:
return ScrollView::BROWN;
case BRT_VLINE:
return ScrollView::DARK_GREEN;
case BRT_RECTIMAGE:
return ScrollView::RED;
case BRT_POLYIMAGE:
return ScrollView::ORANGE;
case BRT_UNKNOWN:
return flow_type == BTFT_NONTEXT ? ScrollView::CYAN : ScrollView::
WHITE;
case BRT_VERT_TEXT:
if (flow_type == BTFT_STRONG_CHAIN || flow_type == BTFT_TEXT_ON_IMAGE)
return ScrollView::GREEN;
if (flow_type == BTFT_CHAIN)
return ScrollView::LIME_GREEN;
return ScrollView::YELLOW;
case BRT_TEXT:
if (flow_type == BTFT_STRONG_CHAIN)
return ScrollView::BLUE;
if (flow_type == BTFT_TEXT_ON_IMAGE)
return ScrollView::LIGHT_BLUE;
if (flow_type == BTFT_CHAIN)
return ScrollView::MEDIUM_BLUE;
if (flow_type == BTFT_LEADER)
return ScrollView::WHEAT;
if (flow_type == BTFT_NONTEXT)
return ScrollView::PINK;
return ScrollView::MAGENTA;
default:
return ScrollView::GREY;
}
}
and some detailed description on what it all means...
// The possible region types of a BLOBNBOX.
// Note: keep all the text types > BRT_UNKNOWN and all the image types less.
// Keep in sync with kBlobTypes in colpartition.cpp and BoxColor, and the
// *Type static functions below.
enum BlobRegionType {
BRT_NOISE, // Neither text nor image.
BRT_HLINE, // Horizontal separator line.
BRT_VLINE, // Vertical separator line.
BRT_RECTIMAGE, // Rectangular image.
BRT_POLYIMAGE, // Non-rectangular image.
BRT_UNKNOWN,// Not determined yet.
BRT_VERT_TEXT, // Vertical alignment, not necessarily vertically
oriented.
BRT_TEXT, // Convincing text.
BRT_COUNT // Number of possibilities.
};
// BlobTextFlowType indicates the quality of neighbouring information
// related to a chain of connected components, either horizontally or
// vertically. Also used by ColPartition for the collection of blobs
// within, which should all have the same value in most cases.
enum BlobTextFlowType {
BTFT_NONE, // No text flow set yet.
BTFT_NONTEXT,// Flow too poor to be likely text.
BTFT_NEIGHBOURS, // Neighbours support flow in this direction.
BTFT_CHAIN, // There is a weak chain of text in this direction.
BTFT_STRONG_CHAIN, // There is a strong chain of text in this direction.
BTFT_TEXT_ON_IMAGE, // There is a strong chain of text on an image.
BTFT_LEADER, // Leader dots/dashes etc.
BTFT_COUNT
};
So, it thinks there is an image in there somehow and all I did to fix it
was to bypass an if statement.
diff --git a/textord/colfind.cpp b/textord/colfind.cpp
index ea5d73d..3b4246e 100644
--- a/textord/colfind.cpp
+++ b/textord/colfind.cpp
@@ -309,7 +309,7 @@ int ColumnFinder::FindBlocks(PageSegMode pageseg_mode,
Pix* scaled_color,
stroke_width_->GradeBlobsIntoPartitions(
pageseg_mode, rerotate_, input_block, nontext_map_, denorm_,
cjk_script_,
&projection_, diacritic_blobs, &part_grid_, &big_parts_);
- if (!PSM_SPARSE(pageseg_mode)) {
+ if (!PSM_SPARSE(pageseg_mode) && 0) {
ImageFind::FindImagePartitions(photo_mask_pix, rotation_, rerotate_,
input_block, this, &part_grid_, &
big_parts_);
ImageFind::TransferImagePartsToImageMask(rerotate_, &part_grid_,
I think the `&& 0` should be replaced with an `|| init_var` and mainlined.
Something like textord_disable_imagefind. Any comments, suggestions?
--
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