Jaap Haitsma
2ff513b0b4
merge upstream
2021-06-16 23:52:51 -04:00
Jaap Haitsma
c266adbc11
Merge branch 'master' of https://github.com/dlbeer/quirc
2021-06-16 23:36:18 -04:00
Jaap Haitsma
f22a89aefd
do not store .vscode
2021-06-16 23:34:31 -04:00
Jaap Haitsma
0c766593bf
Merge branch 'fix-grouping' of github.com:JaapHaitsma/quirc into fix-grouping
2021-06-16 23:25:54 -04:00
Jaap Haitsma
00f187d94a
Remove unused functions
2021-06-16 22:18:15 -04:00
Daniel Beer
5adb7597c1
Merge pull request #100 from yamt/flood-fill2
...
Improve stack usage for flood filling
2021-05-12 10:30:49 +12:00
YAMAMOTO Takashi
6b3575cd59
flood_fill_seed: Add comments on exit conditions
2021-05-11 15:03:09 +09:00
YAMAMOTO Takashi
22269c9a43
flood_fill_seed: initialize left_up and left_down together
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Just for readability.
2021-05-11 14:59:22 +09:00
YAMAMOTO Takashi
87ca2b6c2d
flood_fill_seed: Switch from goto to while
2021-05-11 14:57:53 +09:00
YAMAMOTO Takashi
a436fde8a0
flood_fill_seed: Reduce code duplicatino
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This is also a preparation to eliminate the uses of goto.
2021-05-11 14:54:19 +09:00
YAMAMOTO Takashi
eadbc2caca
flood_fill_seed: Move flood_fill_line to the "caller"
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This restructure allows us to unify "call" and "return_from_call".
2021-05-11 14:09:24 +09:00
YAMAMOTO Takashi
0b69940876
flood_fill_line: call user callback as well
2021-05-11 14:05:02 +09:00
YAMAMOTO Takashi
38f882b3d6
flood_fill_seed: Simplify the flow by having a single "return point".
2021-05-11 13:46:31 +09:00
YAMAMOTO Takashi
1fa9b0c109
flood_fill_seed: Add assertions
2021-05-11 13:26:59 +09:00
YAMAMOTO Takashi
dd6c64cafe
Add QUIRC_ASSERT
2021-05-11 13:26:47 +09:00
YAMAMOTO Takashi
40def012e7
flood_fill_seed: Unify "left" and "x" vars
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This reduces the memory usage a bit.
2021-05-11 13:04:02 +09:00
YAMAMOTO Takashi
aad3fc63b6
flood_fill_seed: separate a logic to fill a line
2021-05-11 12:55:44 +09:00
YAMAMOTO Takashi
f1dd37fbdb
quirc_resize: Make this a bit more careful about integer overflows
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Also, avoid malloc(0), which is not too portable.
2021-05-11 11:05:58 +09:00
YAMAMOTO Takashi
772cd3e73f
Improve stack usage for flood filling
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* Make flood filling logic iterative (vs recursive)
I basically tried one-to-one conversions here to avoid mistakes.
probably it has a room for later optimizations.
* Use explicit malloc (vs variables on stack) to allocate the work area.
* Estimate the amount of memory for the work area dynamically
from the image size, instead of using a constant FLOOD_FILL_MAX_DEPTH,
which is too big in the most cases.
2021-05-11 11:05:58 +09:00
Daniel Beer
c6fc67088a
Merge pull request #103 from yamt/otsu
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Fix possible overflows in otsu()
2021-05-11 13:24:56 +12:00
Daniel Beer
e43a33bbc4
Add name of license to LICENSE file.
2021-05-11 10:34:42 +12:00
Daniel Beer
db49540f36
Merge pull request #107 from yamt/shrink-datastream
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Shrink struct datastream by borrowing the user buffer
2021-05-11 10:30:58 +12:00
Daniel Beer
fd7792177e
Merge pull request #106 from yamt/finder_scan
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finder_scan: Improve capstone detection on small images
2021-05-11 10:28:03 +12:00
Alexandre Perrin
121d685617
Merge pull request #101 from yamt/doc-make
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README.md: document requirement on make command
2021-05-02 21:53:32 +02:00
YAMAMOTO Takashi
21b7581b04
Shrink struct datastream by borrowing the user buffer
2021-04-23 13:40:37 +09:00
YAMAMOTO Takashi
65379a7c39
finder_scan: Improve capstone detection on small images
...
When using small captured images, I somehow frequently see failures
to recognize a capstone due to rounding errors.
eg. when pb[] = {2 3 8 3 2}.
This commit tries to improve it by using fixed-point arithmetics.
The scaling factor was chosen somehow arbitrary. A moderate scaling
should be enough.
2021-04-23 10:36:22 +09:00
YAMAMOTO Takashi
734258c775
finder_scan: constify the "check" array
2021-04-23 10:36:22 +09:00
YAMAMOTO Takashi
02ed1066ba
test_grouping: use unsigned variables where it makes more sense
2021-04-23 10:36:22 +09:00
YAMAMOTO Takashi
6fb24d26c8
README.md: document requirement on make command
2021-04-17 22:35:46 +09:00
Alexandre Perrin
ed455904f3
Merge pull request #102 from yamt/readme-quirc-demo-opencv
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Update for quirc-demo-opencv and dependencies
2021-04-16 20:38:38 +02:00
YAMAMOTO Takashi
ea9b6ee5ef
otsu: Use unsigned for the pixel numbers
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Because singed numbers don't make sense here.
2021-04-08 13:38:30 +09:00
YAMAMOTO Takashi
de68db7b69
otsu: Use double for weighted sums
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My phone camera produces 12M-pixel images.
They can easily overflow an int.
2021-04-08 13:38:30 +09:00
YAMAMOTO Takashi
a3623ea4f4
README.md: Update extra dependencies for each programs
2021-04-08 09:49:14 +09:00
YAMAMOTO Takashi
ef1b97015e
Makefile: quirc-demo-opencv doesn't use libjpeg
2021-04-08 09:49:14 +09:00
YAMAMOTO Takashi
a2b1358580
README.md: Update for quirc-demo-opencv
2021-04-08 09:49:11 +09:00
Alexandre Perrin
9c0f555acb
Merge pull request #94 from yamt/demo-opencv
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quirc-demo-opencv: Add OpenCV version of the demo
2021-03-28 21:00:08 +02:00
Alexandre Perrin
7ef51ee6e7
Merge pull request #97 from yamt/readme-demo
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README.md: mention requirements of each test/demo
2021-03-28 20:59:30 +02:00
YAMAMOTO Takashi
f10e7dc39a
README.md: mention requirements of each test/demo
2021-03-23 09:08:51 +09:00
YAMAMOTO Takashi
679e43f144
quirc-demo-opencv: Add OpenCV version of the demo
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My motivation is to experiment quirc on macOS, where
neither of SDL1 or V4L2 work.
```
% brew install opencv
% brew install pkg-config
% brew install bsdmake
% bsdmake quirc-demo-opencv
% ./quirc-demo-opencv
```
Note: the macOS version of GNU make (/usr/bin/make) is a bit old
for quirc's Makefile.
2021-03-22 10:13:33 +09:00
Alexandre Perrin
7e7ab596e4
Merge pull request #89 from claudiofelber/master
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Support horizontally flipped QR-codes according to ISO 18004:2015
2020-09-23 22:09:39 +02:00
Claudio Felber
8e8a638a5f
Update README.md with how to use quirc_flip()
2020-09-22 12:23:17 +02:00
Claudio Felber
2fd06df8de
Add support for flipped QR-codes in inspect and qrtest tools
2020-09-22 12:18:23 +02:00
Claudio Felber
4bc17cf8c6
Optimize quirc_flip()
2020-09-22 12:14:09 +02:00
Claudio Felber
5beb59e3b4
Support horizontally flipped QR-codes according to ISO 18004:2015
2020-09-21 16:54:55 +02:00
Daniel Beer
92026d26bd
Merge pull request #87 from claudiofelber/master
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Fix stack corruption and bus errors while scanning oversized QR codes
2020-09-21 11:13:11 +12:00
Claudio Felber
963d6ed126
Fix stack corruption and bus errors while scanning oversized QR codes
2020-09-15 00:51:41 +02:00
Jaap Haitsma
af9966c986
Remove .vscode files
2020-05-27 21:38:01 -04:00
Jaap Haitsma
bff065d88b
Try all possible groups and new algo for grid_size
2020-05-27 21:33:51 -04:00
Jaap Haitsma
ceb1241735
Add vscode settings
2020-05-26 21:29:28 -04:00
Jaap Haitsma
e3448347b3
Merge branch 'master' into fix-grouping
2020-05-25 21:35:21 -04:00