omr | Optical Mark Recognition in Python | Computer Vision library
kandi X-RAY | omr Summary
kandi X-RAY | omr Summary
omr is a small Python 3 optical mark recognition script. It takes as input an image of an answered answer sheet and outputs which alternatives were marked. The project is generally optimized for conciseness and teachability, and the goal is to provide a reasonable starting point for learning and hopefully building more powerful applications.
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- Extract the answers from the input image
- Draw the marked alternative
- Draw a circle
- Return the letter associated with the given alt index
- Yield all question patches
- Get the outmost points from a list of contours
- Returns the bounding box of a contour
- Get the contours of an image
- Convert coordinates to transf coordinates
- Yield all alternative patches
- Calculate corner features
- Sort a set of points
- Calculate corner corners
- Get the question patch
- Transform an image
- Calculate the features from a contour
- Determine the minimum marked alternative
- Normalize an image
- Compute the distance between two features
omr Key Features
omr Examples and Code Snippets
Community Discussions
Trending Discussions on omr
QUESTION
I have 2 PLCs with serial port. one is mitsubishi Q00Jcpu mc protocol, another is omron hostlink protocol.
I tried to use python pyserial lib to write to the PLC and read response. But failed, I tried to use a serial tool to test and got nice response, serial tool success communicate with PLC, I read CIO address start 100 and size 2, it got 12345678, that is a true result.
my code :
...ANSWER
Answered 2022-Mar-19 at 02:45I figured it how, the return of serial.write is not the result. If need the response from device, should use read_until(), not sure weather this is a good way, please let me know if you have any suggestions. Anyway, the class i make, can read the omron PLC by giving different params, hope it can help someone.
DEMO:
QUESTION
I'm trying to run some legacy code using Semeru:
...ANSWER
Answered 2022-Mar-15 at 16:56Sharing my own solution just in case anyone else has the same issue.
That cipher is actually available in the /lib/ext/sunjce_provider.jar file on the openjdk compilation (IBM Semeru Runtime Open Edition (build 1.8.0_322-b06)).
As posted on the question, it's actually on the provider list (index 6), but the jar was not being loaded. I have yet to investigate if there is any change on the extension classloader that I'm not aware of, but, so far, manually adding that jar to the application classpath has worked flawlessly and got the cipher working.
QUESTION
I need help if there is any expert in XML and kotlin. I would like to know how to convert the below XML access it in kotlin code and then convert it into kotlin array file i.e. like (USD -> $) so the value of USD is the symbol which the unicode of from the XML.
I know in Android there is java utill class but the problem there is there is not all currencies symbols available i.e. for AFN -> there is AFN but in actual it should be -> ؋.
here is XML file:
...ANSWER
Answered 2022-Mar-06 at 18:55val xml = """
Albania Lek
Afghanistan Afghani
Argentina Peso
Aruba Guilder
Australia Dollar
Azerbaijan New Manat
"""
data class Currency(
val code: String,
val name: String,
val symbol: String
)
val currencies = xml.trimIndent()
.substringAfter(">").substringBeforeLast(")|()".toRegex())
.filter { s -> s.isNotBlank() }
Currency(
code = splitted.first(),
name = splitted.last(),
symbol = (splitted.drop(1).dropLast(1).lastOrNull() ?: "")
.split(",")
.filter { s -> s.isNotBlank() }
.map { s -> Integer.parseInt(s.trim(), 16).toChar() }
.joinToString("")
)
}
currencies.forEach { println(it) }
QUESTION
I submitted all of my code below for a better understanding. The code is fine, my question is: How can I perfectly show multiple countries with their country name list? I mean: When I change the country name, then the flag image should be changed automatically, so users see the country name and image. I already put many links in my loadFlag() function in my js file, but this is not working. Please help me, how can i do it with my code? Thanks in advance and love from the top of my heart.
...ANSWER
Answered 2022-Mar-02 at 17:43You're loading country flags from flagcdn.com in which each png is named after a two-letter country code that you have in your country_code value.
You just need to update your loadFlag function to properly update the img tag's property values. See the working code snippet below.
QUESTION
Here's how I parse the xml response from this url
...ANSWER
Answered 2022-Feb-23 at 15:19Unfortunately, you have to deal with the namespace in the file. So try it this way:
QUESTION
Is there any way to add OMR codes for letter inserters onto an Oracle Report?
Dirty tricks or not, any ideas are welcome. So far I was thinking of either drawing the lines and hiding/showing them depending on the page. Either that or creating 16 different images (8 combinations for start and end) -> Explanation: The top 2 represent start and stop, the bottom represents a binary sequence going from bottom to top.
Here is the desired result:
...ANSWER
Answered 2022-Feb-14 at 08:47When I was developing such a report (boy, it was ... 15 years ago, I don't remember details any more), I created separate lines. Each of them had its own Format trigger which returned TRUE (if that line had to be displayed) or FALSE (if not), based on a function result.
If I remember well,
the 1st line was always displayed
the 2nd line represented beginning of "data set" (e.g. 3 papers had to be put into the same envelope, so the 1st of these 3 pages had that line displayed)
the 3rd line represented end of "data set" (as above; that line was displayed on the 3rd page of that set, which means that these 3 papers were put into the same envelope)
the next 3 lines were "counters" (binary, of course):
- no lines = 0
- only the 1st line = 1
- only the 2nd line = 2
- the 1st and the 2nd line = 3 etc.
You're having more "counter" lines than I did, but it doesn't matter, the principle is the same.
It worked on both Neopost and Pitney-Bowes machines.
P.S. Did you hug your backup today? I just did - found the report that dates back in August 2007. Here's a screenshot which illustrates what I was trying to describe:
QUESTION
I am using MacOS BigSur, trying to change java version to v1.8 I have followed the instructions from this question but no results.
/usr/libexec/java_home -V commands outputs:
ANSWER
Answered 2022-Jan-10 at 12:14There is a very easy way of managing JDK installations almost automatically using something like SDKMAN. I suggest you have a look at this, as it would greatly simplify the process of managing whatever is that you need to manage. Note that the solution work for both MacOS and Linux.
QUESTION
suppose I have the following models:
Categories-(hasMany/belongsTo)-Subcategories-(hasMany/belongsTo)-Products
These models create a collapsible product list in the frontend, like so:
...ANSWER
Answered 2021-Nov-24 at 19:55you can repeat the same condition on eager loading:
QUESTION
this is json output:
{"query":{"apikey":"...","base_currency":"USD","timestamp":1635972203},"data":{"JPY":113.99127,"CNY":6.39464,"CHF":0.9114,"CAD":1.23881,"MXN":20.54423,"INR":74.44808,"BRL":5.57063,"RUB":71.80098,"KRW":1175.11443,"IDR":14295.1734,"TRY":9.63691,"SAR":3.75119,"SEK":8.52554,"NGN":410.22181,"PLN":3.94541,"ARS":99.81213,"NOK":8.49529,"TWD":27.78459,"IRR":42000.64577,"AED":3.67284,"COP":3827.77643,"THB":33.32047,"ZAR":15.23269,"DKK":6.40357,"MYR":4.15212,"SGD":1.34783,"ILS":3.11624,"HKD":7.78416,"EGP":15.7003,"PHP":50.65881,"CLP":811.73282,"PKR":169.4547,"IQD":1458.01958,"DZD":136.722,"KZT":428.93534,"QAR":3.6499,"CZK":21.94293,"PEN":4.0008,"RON":4.25921,"VND":22747.41599,"BDT":85.57148,"HUF":308.78687,"UAH":26.25062,"AOA":598.0065,"MAD":9.06226,"OMR":0.38491,"CUC":24.00026,"BYR":2.00003,"AZN":1.69502,"LKR":200.00259,"SDG":438.90856,"SYP":2511.07513,"MMK":1746.02836,"DOP":56.29093,"UZS":10690.31508,"KES":111.25137,"GTQ":7.73108,"URY":44.18107,"HRV":6.47553,"MOP":8.01811,"ETB":47.31305,"CRC":635.74442,"TZS":2298.03956,"TMT":3.49009,"TND":2.80635,"PAB":1.00002,"LBP":1505.5263,"RSD":101.16202,"LYD":4.54568,"GHS":6.00013,"YER":249.956,"BOB":6.82018,"BHD":0.377,"CDF":1999.22628,"PYG":6875.19435,"UGX":3550.05822,"SVC":8.7497,"TTD":6.74137,"AFN":90.84208,"NPR":119.13277,"HNL":24.06657,"BIH":1.68483,"BND":1.34753,"ISK":129.16264,"KHR":4060.117,"GEL":3.14003,"MZN":63.22108,"BWP":11.45513,"PGK":3.5113,"JMD":153.22216,"XAF":564.86281,"NAD":15.2189,"ALL":105.53113,"SSP":391.0052,"MUR":42.90097,"MNT":2830.04693,"NIO":35.21094,"LAK":10330.27262,"MKD":53.08156,"AMD":474.80501,"MGA":3928.06091,"XPF":102.48118,"TJS":11.26034,"HTG":98.0013,"BSD":1.00003,"MDL":17.41883,"RWF":1018.02194,"KGS":84.77099,"GNF":9510.20822,"SRD":21.40242,"SLL":10779.18736,"XOF":568.81159,"MWK":807.36713,"FJD":2.06806,"ERN":15.05028,"SZL":15.21372,"GYD":207.78611,"BIF":1980.25293,"KYD":0.82002,"MVR":15.42042,"LSL":15.23032,"LRD":146.80405,"CVE":94.95278,"DJF":177.50237,"SCR":14.42749,"SOS":575.00647,"GMD":52.15123,"KMF":424.6543,"STD":21.11031,"XRP":0.83002,"AUD":1.34372,"BGN":1.68394,"BTC":0.0159,"JOD":0.70801,"GBP":0.73402,"ETH":0.00022,"EUR":0.86112,"LTC":0,"NZD":1.40184}}
The data section contains many key value pairs, but their number and names vary according to base_currency. (For example if i send request with USD there is no USD key or if i send request with CNY there is no CNY key in data section)
So what kind of data class should I create so that I can use it with the retrofit and gsoncreator libraries. (I am also trying to use and learn jetpack android libraries if this is important)
i use that data classes: (I am not using gson annotations because i believe my variables names are correct and i try that it doesn't help)
data class ResponseFromApi(val data: Data,val query: Query)
data class Query(val apikey: String, val base_currency: String, val timestamp: Int)
data class Data(val hashmapForData: HashMap) (i suspect some values are integer but i am not sure)
it doesn't work. Maybe that's not the problem. I don't know but least i need to know, Are these classes correct? What is the proper way to do this.
And i don't know how to get error message from retrofit object so i can identify the problem. But this is another question.
...ANSWER
Answered 2021-Nov-04 at 09:37Arpit Shukla's answer is correct.
QUESTION
I want to make a grid of 14x5 radio buttons in my Web page but I am facing the following problems : 1)
2)
Either I am not able to align it in perfect grid or it is going straight down, It would be very helpful , If someone can help me out with the approach to align it in 14x5 Grid (if possible) like this:
I am not sharing my html/css code of the webpage as that involves django template tags doing different things which would overcomplicate things ,and I have to write a longer question to explain the backend logic unneccesarily.
...ANSWER
Answered 2021-Oct-21 at 05:27Use grid-template-columns to repeat it in a column in the below code I have set repat(5, 1fr); it will return this in five-column automatically
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No vulnerabilities reported
Install omr
You can use omr like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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