how to use it for train the openalpr?

[abangrephol]

how to use it for train the openalpr?

[linxzhang]

I'm using this utility to train Chinese plates, and got some *.yaml files, are there any tutorial documents?

[matthill]

This Python script can be used to create the crop images for the detector training: https://github.com/openalpr/train-detector/blob/master/crop_plates.py

[KhuranaPuneet]

I am using it on windows platform and trying to train ALPR for Indian plates. Got some yaml files in the same directory. Now when i run below command, i have an incorrect output. I am very new to this and am finding hard to get it done.

C:\Users\epukhur\Desktop\openalpr_32>ALPR -c eu c:\temp\7.jpg
plate0: 4 results
- DL8C872 confidence: 93.9432
- DL8C87Z confidence: 79.7399
- 0L8C872 confidence: 72.9129
- 0L8C87Z confidence: 58.7096

[KhuranaPuneet]

If you are on windows, please go to the command prompt Start-- Run ----cmd goto the python directory (if python directory is not set in PATH variable) Execute command python -m pip install cv2 Sent: Friday, July 14, 2017 at 7:48 AM From: chen6421 <notifications@github.com> To: openalpr/plate_tagger <plate_tagger@noreply.github.com> Cc: KhuranaPuneet <puneet.khurana@email.com>, Comment <comment@noreply.github.com> Subject: Re: [openalpr/plate_tagger] how to use it for train the openalpr? (#2) when I used https://github.com/openalpr/train-detector/blob/master/crop_plates.py to create the crop images for the detector training. However one error occurred: import cv, cv2 ImportError: No module named cv Can someone enlighten me? — You are receiving this because you commented. Reply to this email directly, view it on GitHub, or mute the thread.  

[zhouhao27]

Got the same error. Any solution?

[wiemrachman]

Hai Linxzhang,

Could you give detail how to use utility "Plate_Tagger" to got some *.yaml files?
do you have *.yaml file for example?

Many Thanx

[zhouhao27]

@wiemrachman Just tag the image, it will generate the .yaml file. For example, a sample yaml file:

image_file: 1.jpg
image_width: 640
image_height: 375
plate_corners_gt: 272 211 405 205 404 267 273 275
region_code_gt: sg2
plate_number_gt: SGH9456J
plate_inverted_gt: true

[wiemrachman]

Thanx @zhouhao27

Really?
Actually we have 2 problem with plat_tagger utility.

1. Button Save still disable (grey)
2. After i fixed the bug, i got the log (bellow) without error but there is not yaml file

wiem@t430:~/plate_tagger/build$ ./openalpr_tagger
11:42:13.110 D Open directory
11:42:13.110 D Configuration file: /home/wiem/.config/OpenALPR/openalpr_tagger.ini
11:42:18.097 D Loading directory '/home/wiem/Downloads/vid2img'
11:42:19.329 D Loaded files: 2120
11:42:19.329 D Next
11:42:19.330 D Loading image '/home/wiem/Downloads/vid2img/out1556.png'
11:42:27.891 D Starting selection QRect(214,149 1x1)
11:42:30.002 D Actual selection: QRect(529,361 203x77)
11:42:30.002 D Image selection: QRect(529,361 203x77)
11:42:42.515 D Tombol save di klik ya
11:42:42.515 D Selected polygon: QPolygon()

any suggestion?

[wiemrachman]

to resolve the bug (save button = false)

I changed plateselector.cpp , at void PlateSelector::slotSave()
from :
ui->buttonBox->button(QDialogButtonBox::Save)->setEnabled( !plateNumber().isEmpty() &&
!ui->imageViewerPlateSelector->selectedPolygon().isEmpty()
into :
ui->buttonBox->button(QDialogButtonBox::Save)->setEnabled(true);

just tricky to force save button "true"

but after tag the image , i did not found yaml file

please help me

[zhouhao27]

I built the openalpr_tagger in my Mac osx without modifying anything in source code. It works well and the yaml files are saved in the same folder as your original image files.

[wiemrachman]

I think no problem betwwen Max OSX or Ubuntu.

I Suspect there are something wrong on plateselector.cpp
Will you show me plateselector.cpp , are there difference with https://github.com/openalpr/plate_tagger/blob/master/plateselector.cpp?

[wiemrachman]

@zhouhao27
Ups you right Just tag the image
Many Thanx @zhouhao27

[nabeeltahir12]

I have installed this tagger on windows but the Save button does not appear to be active (i-e unable to save ) Is there any bug in the code? I installed using exe file.