Difference between revisions of "Publications/201404-DAS-Ressources"
From LRDE
(Show the table of contents.) |
|||
| (One intermediate revision by one other user not shown) | |||
| Line 7: | Line 7: | ||
| − | = Full Resolution Illustrations from the Paper = |
+ | == Full Resolution Illustrations from the Paper == |
''Click on image thumbnails to see the full resolution images.'' |
''Click on image thumbnails to see the full resolution images.'' |
||
| − | == ''Fig. |
+ | === ''Fig. 8: Comparison of an opening based on a structuring element and an algebraic opening.'' === |
| + | |||
| + | <table border=0> |
||
| + | <tr> |
||
| + | <td> |
||
| + | [[File:Lena.png|200px|thumb]] |
||
| + | </td> |
||
| + | <td> |
||
| + | [[File:Lena-opening.png|200px|thumb]] |
||
| + | </td> |
||
| + | <td> |
||
| + | [[File:Lena-area-opening.png|200px|thumb]] |
||
| + | </td> |
||
| + | </tr> |
||
| + | <tr> |
||
| + | <td align=center> |
||
| + | Initial image. |
||
| + | </td> |
||
| + | <td align=center> |
||
| + | Structural opening (with a disc). |
||
| + | </td> |
||
| + | <td align=center> |
||
| + | Algebraic (area) opening. |
||
| + | </td> |
||
| + | </tr> |
||
| + | </table> |
||
| + | |||
| + | |||
| + | === ''Fig. 9: Sample uses of connected operators.'' === |
||
<table border=0> |
<table border=0> |
||
| Line 56: | Line 84: | ||
| − | = Additional Illustrations = |
+ | == Additional Illustrations == |
| − | == Zero-crossing contours of different Laplace operators == |
+ | === Zero-crossing contours of different Laplace operators === |
<table border=0> |
<table border=0> |
||
| Line 95: | Line 123: | ||
</table> |
</table> |
||
| − | == Applying some applications upon the simplified tree structure == |
+ | === Applying some applications upon the simplified tree structure === |
<table border=0> |
<table border=0> |
||
| Line 133: | Line 161: | ||
| − | = Additional Results = |
+ | == Additional Results == |
Some morphological methods have been run on 63 document images from the [http://dataset.primaresearch.org/ PRImA Layout Analysis Dataset]. |
Some morphological methods have been run on 63 document images from the [http://dataset.primaresearch.org/ PRImA Layout Analysis Dataset]. |
||
| Line 141: | Line 169: | ||
| − | == Simplification == |
+ | === Simplification === |
<table border=0> |
<table border=0> |
||
| Line 156: | Line 184: | ||
| − | == Binarization == |
+ | === Binarization === |
<table border=0> |
<table border=0> |
||
<tr> |
<tr> |
||
| Line 169: | Line 197: | ||
</table> |
</table> |
||
| − | == Identification == |
+ | === Identification === |
<table border=0> |
<table border=0> |
||
<tr> |
<tr> |
||
| Line 182: | Line 210: | ||
</table> |
</table> |
||
| − | == Show-through extraction == |
+ | === Show-through extraction === |
<table border=0> |
<table border=0> |
||
<tr> |
<tr> |
||
| Line 195: | Line 223: | ||
</table> |
</table> |
||
| − | == Boxes filtering == |
+ | === Boxes filtering === |
<table border=0> |
<table border=0> |
||
<tr> |
<tr> |
||
| Line 207: | Line 235: | ||
</table> |
</table> |
||
| − | == Lines filtering == |
+ | === Lines filtering === |
<table border=0> |
<table border=0> |
||
<tr> |
<tr> |
||
| Line 219: | Line 247: | ||
</table> |
</table> |
||
| − | == Text filtering == |
+ | === Text filtering === |
<table border=0> |
<table border=0> |
||
<tr> |
<tr> |
||
Latest revision as of 11:18, 8 April 2014
This page gathers resources related to the article entitled
Planting, Growing, and Pruning Trees: Connected Filters Applied to Document Image Analysis
submitted to the
11th IAPR International Workshop on Document Analysis Systems (DAS 2014).
Full Resolution Illustrations from the Paper
Click on image thumbnails to see the full resolution images.
Fig. 8: Comparison of an opening based on a structuring element and an algebraic opening.
|
Initial image. |
Structural opening (with a disc). |
Algebraic (area) opening. |
Fig. 9: Sample uses of connected operators.
|
(a) Filtering out everything but boxes. |
|
|
(b) Showing filtered lines. |
|
|
(c) An image featuring almost only text. |
|
Additional Illustrations
Zero-crossing contours of different Laplace operators
|
(a) Δ4 |
(b) LoG 17x17 |
|
(c) Δ□51 |
(d) Δ□17 |
Applying some applications upon the simplified tree structure
|
(a) Color input image. |
(b) Δ□51 |
|
(c) Simplification. |
(d) Binarization. |
Additional Results
Some morphological methods have been run on 63 document images from the PRImA Layout Analysis Dataset. Several results are proposed:
Click on image thumbnails to see the full resolution images.
Simplification
|
Simplification of color images.
|
Binarization
|
"Smart" binarization taking into account reverse video.
|
Identification
|
Images combining the result of several identifications: background (black), non-specific objects (%SILVER%light gray%ENDCOLOR% contours), object holes (%YELLOW%yellow%ENDCOLOR% contours), thin line separators (%GREEN%green%ENDCOLOR% contours), text boxes (%AQUA%light blue%ENDCOLOR% contours), noise (%RED%dark red%ENDCOLOR% contours) and spurious shapes (%GRAY%dark gray%ENDCOLOR% contours).
|
