Open Shreeshrii opened 6 years ago
Shreeshrii
commented
6 years ago Image used (from issue 1601)
https://user-images.githubusercontent.com/52270/40514191-2557fc94-5f5d-11e8-896d-ee3c52956076.png
Console output : https://github.com/tesseract-ocr/tesseract/files/2039107/1601.log.txt
Shreeshrii
commented
5 years ago In contrast, --psm 3 is producing gibberish in the example in https://github.com/tesseract-ocr/tesseract/issues/1327
Shreeshrii
commented
5 years ago Retested with current code. Problem still persists.
Looks like image pre-processing is being done for --psm 3. Can same (relating to whole image/page) be applied for other modes too?
Shreeshrii
commented
5 years ago Output for reference:
tesseract 4.1.0-rc1-250-g95a1
leptonica-1.76.0
libgif 5.1.4 : libjpeg 8d (libjpeg-turbo 1.4.2) : libpng 1.2.54 : libtiff 4.0.6 : zlib 1.2.8 : libwebp 0.4.4 : libopenjp2 2.3.0
***** ./1603.png LANG eng TESSDATA tessdata OEM 1 PSM 3 ****
Error in boxClipToRectangle: box outside rectangle
Error in pixScanForForeground: invalid box
Sn
NS
LLLLLLLLLLELD DDD
+ IPILLLLLBLLLLLYL
"7" BASIC SCONE RECIPE
I Lb. Self-raising Flour 2 Ozs. Butter
1 Level Teaspoon Sait 13 Cups Miik
Prepare a hot oven (450°F.). Sift flour and salt. Using
finger tips rub butter into flour. Make well in centre and add
milk all at once, stirring in flour, quickly and lightly, to a soft
dough. Turn on to lightly floured board and knead just
enough to make a smooth surface. Roll to 4 inch thickness
and cut into rounds, squares or triangles. Place on floured
oven tray; glaze top with milk or beaten egg and milk. Bake -
in hot oven (450°F.) 10 to 15 minutes. Makes about 20
average size scones.
VARIATIONS OF PLAIN SCONE
Sweet Scones. Add 2 level tablespoons sugar and 1 beaten
egg to the above, using 1 tablespoon less milk.
Date Scones. Sift 2 level teaspoons cinnamon with the flour.
Add 1 oz. sugar and 4 oz. chopped dates before the milk.
Teaparty Scones. Cut scones with round cutter, 1 inch in
diameter, baking about 7 minutes.
Cocktail Scones. Cut scones with small round cutter. When
baked cut in half and use as base for savouries. These scones
are usually cheese flavoured or well seasoned with celery salt
and cayenne.
Raisin Scones. Sift 1 level teaspoon grated nutmeg with flour
and add 4 oz. chopped seeded raisins.
Wholemeal Honey Scones. Use half white and half wholemeal
self-raising flour. Add 1 egg and 2 tablespoons honey in
mixing. The grated rind of an orange may be added.
Cheese Scones. Sift level teaspoon cayenne with the flour
and add 3 cup grated cheese before adding milk. An egg
may be added. ’
Cheese and Onion Scones. Add 1 level dessertspoon finely
chopped onion to the cheese scone mixture.
Celery Scones. Add 1 level teaspoon celery salt, omitting
plain salt, 1 small chopped onion.
127%
real 0m25.892s
user 0m59.548s
sys 0m0.436s
***** ./1603.png LANG eng TESSDATA tessdata OEM 1 PSM 6 ****
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real 0m38.275s
user 1m20.152s
sys 0m0.668s
***** ./1603.png LANG eng TESSDATA tessdata_best OEM 1 PSM 3 ****
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LLLLLLLLLLLLD DDD
+ IIILLLLLBLLLLL DL
~~ BASIC SCONE RECIPE
I Lb. Self-raising Flour 2 Ozs. Butter
1 Level Teaspoon Sait 1% Cups Milk
Prepare a hot oven (450°F.). Sift flour and salt. Using
finger tips rub butter into flour. Make well in centre and add
milk all at once, stirring in flour, quickly and lightly, to a soft
dough. Turn on to lightly floured board and knead just
enough to make a smooth surface. Roll to 4 inch thickness
and cut into rounds, squares or triangles. Place on floured
oven tray; glaze top with milk or beaten egg and milk. Bake -
in hot oven (450°F.) 10 to 15 minutes. Makes about 20
average size scones.
VARIATIONS OF PLAIN SCONE
Sweet Scones. Add 2 level tablespoons sugar and 1 beaten
egg to the above, using 1 tablespoon less milk.
Date Scones. Sift 2 level teaspoons cinnamon with the flour.
Add 1 oz. sugar and 4 oz. chopped dates before the milk.
Teaparty Scones. Cut scones with round cutter, 1 inch in
diameter, baking about 7 minutes.
Cocktail Scones. Cut scones with small round cutter. When
baked cut in half and use as base for savouries. These scones
are usually cheese flavoured or well seasoned with celery salt
and cayenne.
Raisin Scones. Sift 1 level teaspoon grated nutmeg with flour
and add 4 oz. chopped seeded raisins.
Wholemeal Honey Scones. Use half white and half wholemeal
self-raising flour. Add 1 egg and 2 tablespoons honey in
mixing. The grated rind of an orange may be added.
Cheese Scones. Sift level teaspoon cayenne with the flour
and add 3 cup grated cheese before adding milk. An egg
may be added. .
Cheese and Onion Scones. Add 1 level dessertspoon finely
chopped onion to the cheese scone mixture. :
Celery Scones. Add 1 level teaspoon celery salt, omitting
plain salt, 1 small chopped onion.
27
real 0m30.765s
user 1m8.656s
sys 0m0.532s
***** ./1603.png LANG eng TESSDATA tessdata_best OEM 1 PSM 6 ****
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real 0m41.097s
user 1m26.448s
sys 0m0.724s
***** ./1603.png LANG eng TESSDATA tessdata_fast OEM 1 PSM 3 ****
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DOEEEEEEEKE SEH DDD
sIDSELEEEEEOELEOD
“BASIC SCONE RECIPE
1 Lb. Self-raising Flour 2 Ozs. Butter
1 Level Teaspoon Sait 15 Cups Milk
Prepare a hot oven (450°F.). Sift flour and salt. Using
finger tips rub butter into flour. Make well in centre and add
milk all at once, stirring in flour, quickly and lightly, to a soft
dough. Turn on to lightly floured board and knead just
enough to make a smooth surface. Roll to + inch thickness
and cut into rounds, squares or triangles. Place on floured
oven tray; glaze top with milk or beaten egg and milk. Bake -
in hot oven (450°F.) 10 to 15 minutes. Makes about 20
average size scones.
VARIATIONS OF PLAIN SCONE
Sweet Scones. Add 2 level tablespoons sugar and 1 beaten
egg to the above, using | tablespoon less milk.
Date Scones. Sift 2 level teaspoons cinnamon with the flour.
Add 1 oz. sugar and 4 oz. chopped dates before the milk.
Teaparty Scones. Cut scones with round cutter, 1 inch in
diameter, baking about 7 minutes.
Cocktail Scones. Cut scones with small round cutter. When
baked cut in half and use as base for savouries. These scones
are usually cheese flavoured or well seasoned with celery salt
and cayenne.
Raisin Scones. Sift 1 level teaspoon grated nutmeg with flour
and add 4 oz. chopped seeded raisins.
Wholemeal Honey Scones. Use half white and half wholemeal
self-raising flour. Add 1 egg and 2 tablespoons honey in
mixing. The grated rind of an orange may be added.
Cheese Scones. Sift 4 level teaspoon cayenne with the flour
and add % cup grated cheese before adding milk. An egg
may be added. r
Cheese and Onion Scones. Add 1 level dessertspoon finely
chopped onion to the cheese scone mixture.
Celery Scones. Add 1 level teaspoon celery salt, omitting
plain salt, 1 small chopped onion.
27,
real 0m16.325s
user 0m34.592s
sys 0m0.344s
***** ./1603.png LANG eng TESSDATA tessdata_fast OEM 1 PSM 6 ****
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8 :
real 0m26.503s
user 0m51.600s
sys 0m0.432s
Bug still exists:
tesseract 5.0.0-alpha-839-gd93e leptonica-1.75.3 libgif 5.1.4 : libjpeg 8d (libjpeg-turbo 1.5.2) : libpng 1.6.34 : libtiff 4.0.9 : zlib 1.2.11 : libwebp 0.6.1 : libopenjp2 2.3.0
Found NEON Found OpenMP 201511
jbarth-ubhd
commented
3 years ago I'll find this glibberish somewhat more aesthetical than obscurity I've seen, probably because glibberish has much less non-letter characters.
Can we be sure that this output is unintentional, when the neural net is considered a "black box"? (joke)
With this particular washed out image, while default --psm 3 and --psm 4 provide English output, using --psm 6 generates gibberish. This happens with all three flavors of traineddata. I am attaching a file with console output.
Here is a sample of the output for comparison:
psm 3
psm 6