merricx / qrazybox

QR Code Analysis and Recovery Toolkit

CRYPTO IS NOT CRYPTOCURRENCY (ノ°益°)ノ彡┻━┻

qrazybox's Issues

Tool support for ECI mode

Currently, tools like "Extract QR Information" fail on codes using ECI modes with "Invalid Encoding mode". Tested with a code beginning with mode: 7, ECI indicator: 26, mode: 4, length: …, ….

QR toolkit在 SD内无法加载（昨天正常，今天无法使用）

如图，所有内容扩展已更新重新加载，仍无法使用

Corrupted data length recovery tool

I was trying to recover a QR-code that had a completely destroyed data length segment...well, eventually i figured out how qr code works and semi-randomly got right bits...but i`d like to see a tool that helps with corrupted data length either entirely or patrially...by partially i mean that tool will show what are possible data lengths in current situation...and you will be able to set whatever length(of course if size of qr-code can contain that much data what you typed in length) you want and see the data in analyzer tool...would be very cool...
sorry for bad english, hope you understood everything that i said)
P.S.i think there is no need for separate tool, just add edit mode to analyzer tool

DataMatrix

Hi! Thank you, great tool! Any plans about datamatrix code? :))

why do the pages use almost standards DOCTYPE ?

is there a specific reason no-quirks mode can't be used ?

Is decoder correct?

I recovered QR code from an image, QRazyBox was able to decode the QR code. After close inspection, I see difference in one "dot", I cannot find any other difference but I can miss some other detail... The question is why source QR code differs from recovered QR code. Was source QR code generated with a defect? Is there a bug in QRazyBox decoder?

Recovered QR code:

#######__###_#__#_#######
#_____#___###__#__#_____#
#_###_#_#_###_#_#_#_###_#
#_###_#_##__###___#_###_#
#_###_#_#_#_##__#_#_###_#
#_____#_#_#_#####_#_____#
#######_#_#_#_#_#_#######
________##_##__#_________
#_#####___##_##___#####__
_#_#_#_####_____#__#___#_
___#_##_#__######___##_##
___##____###__#####_#___#
#___#_#______#___##_#_###
##__##__##__##__#__#_#_#_
#_###_#___#__#####_###_##
#_#____#_#__#__##__##___#
#_#_###_#___#########_#__
________##_____##___##___
#######__#_###__#_#_#_###
#_____#_#_##__#_#___##__#
#_###_#_#__##########_#__
#_###_#_#___##_#_##_#####
#_###_#_#_#__##_#____####
#_____#__#____########__#
#######_##_####__#_######

QR code that was manually modified to match source image, notice "?" in the bottom right corner...

#######__###_#__#_#######
#_____#___###__#__#_____#
#_###_#_#_###_#_#_#_###_#
#_###_#_##__###___#_###_#
#_###_#_#_#_##__#_#_###_#
#_____#_#_#_#####_#_____#
#######_#_#_#_#_#_#######
________##_##__#_________
#_#####___##_##___#####__
_#_#_#_####_____#__#___#_
___#_##_#__######___##_##
___##____###__#####_#___#
#___#_#______#___##_#_###
##__##__##__##__#__#_#_#_
#_###_#___#__#####_###_##
#_#____#_#__#__##__##___#
#_#_###_#___#########_#__
________##_____##___##___
#######__#_###__#_#_#_###
#_____#_#_##__#_#___##__#
#_###_#_#__##########_#__
#_###_#_#___##_#_##_#####
#_###_#_#_#__##_#____##?#
#_____#__#____########__#
#######_##_####__#_######

Online QR-generator that generates this QR code (one dot difference from QRazyBox)
Other online QR-generator

---

Other interesting point about this QR code is that when I scan it with Android barcode scanner Binary Eye, it claims that QR code has ECC recovery at level M and it "restores" QR code but the patterns is very different; I do not understand these low-level details so I cannot explain why the pattern is so different.... UPDATE: a bug in Binary Eye, it generates QR with ECC L...

Other interesting point is when I load this new pattern (created by Binary Eye) to QRazyBox and then I click to blue area in the top left corner, QRazyBox shows "ECC L, mask pattern 2"; Binary Eye shows "ECC M", so there is a bug somewhere, I assume bug in QRazyBox... UPDATE: Binary Eye restores QR code with "ECC L"...

Load QR as background image?

I would like to have an option to upload damaged QR code as a background image to the editor. And have an easy option to show/hide that image.

An example of damaged QR to recover:

Maybe a manual mode to define position of "synchronization" marks (big black squares) can help too.

---

BTW, zbarimg can decode this QR:

$ zbarimg --version
0.23

$ zbarimg QR-NM-damaged.png
QR-Code:[email protected]
scanned 1 barcode symbols from 1 images in 0 seconds

Perfect QR code:

Support larger QR-Codes

It looks like this tool is exactly what I searched for. However, my broken code has 65x65 pixels. Is it so hard to extend it? I can't believe this is exactly what I need and it refuses to work... :)

Perfect QR cannot be decoded

I have found a QR code that is not damaged but QRazyBox cannot decode it; error is Couldn't find enough finder patterns (found 2).
I tried zbarimg and barcode can be decoded, no issue:

$ zbarimg --version
0.23

$ zbarimg QR-mp-testX.png 
QR-Code:testX
scanned 1 barcode symbols from 1 images in 0.01 seconds

QR was generated with qrencode -l M -t utf8 -c 'testX', QRazyBox cannot decode it:

Similar QR code, no issue, encoded string is test0 and test5...

unclear wether in editor mode or decode mode

the button to switch between modes seems to indicate which mode it's in, but it's much more common convention to have the button say what action clicking it will take, so for example, enter edit mode . i think it would be even clearer if there was a header above the button that says what mode you're in, and have the button just say "decode" or "edit" or maybe even just "switch mode"