Difference between revisions of "Publications/201404-DAS-Ressources"
From LRDE
(Fix links to zip files.) |
|||
| (4 intermediate revisions by 2 users not shown) | |||
| Line 1: | Line 1: | ||
{{DISPLAYTITLE:Resources for the DAS 2014 submission}} |
{{DISPLAYTITLE:Resources for the DAS 2014 submission}} |
||
| − | |||
| − | __NOTOC__ |
||
This page gathers resources related to the article entitled |
This page gathers resources related to the article entitled |
||
| Line 9: | Line 7: | ||
| ⚫ | |||
| − | |||
| ⚫ | |||
''Click on image thumbnails to see the full resolution images.'' |
''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.'' === |
||
| ⚫ | |||
| + | |||
| + | <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> |
||
| + | |||
| + | |||
| ⚫ | |||
| + | |||
<table border=0> |
<table border=0> |
||
<tr> |
<tr> |
||
| Line 58: | Line 84: | ||
| + | == Additional Illustrations == |
||
| ⚫ | |||
| + | |||
| ⚫ | |||
| + | |||
<table border=0> |
<table border=0> |
||
<tr> |
<tr> |
||
| Line 94: | Line 123: | ||
</table> |
</table> |
||
| ⚫ | |||
| ⚫ | |||
<table border=0> |
<table border=0> |
||
<tr> |
<tr> |
||
| Line 132: | 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 140: | Line 169: | ||
| − | == Simplification |
+ | === Simplification === |
<table border=0> |
<table border=0> |
||
| Line 155: | Line 184: | ||
| − | == Binarization == |
+ | === Binarization === |
<table border=0> |
<table border=0> |
||
<tr> |
<tr> |
||
| Line 168: | Line 197: | ||
</table> |
</table> |
||
| − | == Identification == |
+ | === Identification === |
<table border=0> |
<table border=0> |
||
<tr> |
<tr> |
||
| Line 181: | Line 210: | ||
</table> |
</table> |
||
| ⚫ | |||
| − | |||
| ⚫ | |||
<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).
|
