Letters | Mac app to learn typing and the alphabet
kandi X-RAY | Letters Summary
kandi X-RAY | Letters Summary
Mac app to learn typing and the alphabet. I wrote this for my 2 year old son who loves typing on the keyboard, looking up at the screen and loudly pronouncing the letter he just typed.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of Letters
Letters Key Features
Letters Examples and Code Snippets
public List letterCombinations(String digits) {
List result = new ArrayList();
if(digits == null || digits.length() == 0) {
return result;
}
String[] mapping = {
"0",
public static boolean checkStringForAllTheLetters(String input) {
boolean[] visited = new boolean[26];
int index = 0;
for (int id = 0; id < input.length(); id++) {
if ('a' <= input.charAt(id) && inp
def get_frequency_order(message: str) -> str:
letter_to_freq = get_letter_count(message)
freq_to_letter: dict[int, list[str]] = {
freq: [] for letter, freq in letter_to_freq.items()
}
for letter in LETTERS:
freq_to_
Community Discussions
Trending Discussions on Letters
QUESTION
I would like to extract the definitions from the book The Navajo Language: A Grammar and Colloquial Dictionary by Young and Morgan. They look like this (very blurry):
I tried running it through the Google Cloud Vision API, and got decent results, but it doesn't know what to do with these "special" letters with accent marks on them, or the curls and lines on/through them. And because of the blurryness (there are no alternative sources of the PDF), it gets a lot of them wrong. So I'm thinking of doing it from scratch in Tesseract. Note the term is bold and the definition is not bold.
How can I use Node.js and Tesseract to get basically an array of JSON objects sort of like this:
...ANSWER
Answered 2021-Jun-15 at 20:17Tesseract takes a lang
variable that you can expand to include different languages if they're installed. I've used the UB Mannheim (https://github.com/UB-Mannheim/tesseract/wiki) installation which includes a ton of languages supported.
To get better and more accurate results, the best thing to do is to process the image before handing it to Tesseract. Set a white/black threshold so that you have black text on white background with no shading. I'm not sure how to do this in Node, but I've done it with Python's OpenCV library.
If that font doesn't get you decent results with the out of the box, then you'll want to train your own, yes. This blog post walks through the process in great detail: https://towardsdatascience.com/simple-ocr-with-tesseract-a4341e4564b6. It revolves around using the jTessBoxEditor to hand-label the objects detected in the images you're using.
Edit: In brief, the process to train your own:
- Install jTessBoxEditor (https://sourceforge.net/projects/vietocr/files/jTessBoxEditor/). Requires Java Runtime installed as well.
- Collect your training images. They want to be .tiffs. I found I got fairly accurate results with not a whole lot of images that had a good sample of all the characters I wanted to detect. Maybe 30/40 images. It's tedious, so you don't want to do TOO many, but need enough in order to get a good sampling.
- Use jTessBoxEditor to merge all the images into a single .tiff
- Create a training label file (.box)j. This is done with Tesseract itself.
tesseract your_language.font.exp0.tif your_language.font.exp0 makebox
- Now you can open the box file in jTessBoxEditor and you'll see how/where it detected the characters. Bounding boxes and what character it saw. The tedious part: Hand fix all the bounding boxes and characters to accurately represent what is in the images. Not joking, it's tedious. Slap some tv episodes up and just churn through it.
- Train the tesseract model itself
- save a file:
font_properties
who's content isfont 0 0 0 0 0
- run the following commands:
tesseract num.font.exp0.tif font_name.font.exp0 nobatch box.train
unicharset_extractor font_name.font.exp0.box
shapeclustering -F font_properties -U unicharset -O font_name.unicharset font_name.font.exp0.tr
mftraining -F font_properties -U unicharset -O font_name.unicharset font_name.font.exp0.tr
cntraining font_name.font.exp0.tr
You should, in there close to the end see some output that looks like this:
Master shape_table:Number of shapes = 10 max unichars = 1 number with multiple unichars = 0
That number of shapes should roughly be the number of characters present in all the image files you've provided.
If it went well, you should have 4 files created: inttemp
normproto
pffmtable
shapetable
. Rename them all with the prefix of your_language
from before. So e.g. your_language.inttemp
etc.
Then run:
combine_tessdata your_language
The file: your_language.traineddata
is the model. Copy that into your Tesseract's data folder. On Windows, it'll be like: C:\Program Files x86\tesseract\4.0\tessdata
and on Linux it's probably something like /usr/shared/tesseract/4.0/tessdata
.
Then when you run Tesseract, you'll pass the lang=your_language
. I found best results when I still passed an existing language as well, so like for my stuff it was still English I was grabbing, just funny fonts. So I still wanted the English as well, so I'd pass: lang=your_language+eng
.
QUESTION
I’d be grateful for suggestions as to how to remap letters in strings in a map-specified way.
Suppose, for instance, I want to change all As to Bs, all Bs to Ds, and all Ds to Fs. If I do it like this, it doesn’t do what I want since it applies the transformations successively:
...ANSWER
Answered 2021-Jun-15 at 18:21We could use chartr
in base R
QUESTION
Could you please help me with a script that prints the first 10 working days or weekdays in a specified month and year to a file?
In my case, the month and year values are specified in a file and the content of the file looks like this:
...ANSWER
Answered 2021-Jun-15 at 12:54Here's an example:
QUESTION
I have a ecommerce site where the URL changes based on the country language. Only 2 letters will be added based on the country ex NL for netherland,NO for Norway.
once the browser is launched i need to check which url is launched and need to proceed based on the launched url.
i am expecting if condition logic
IF url = nl Then " " Else if url = NO Then " " else " "
As i am new to coding struggling in this logic and conditions we are using serenity with junit 5 framework
...ANSWER
Answered 2021-Jun-15 at 12:18You can get the URL with this:
QUESTION
I want to generate legend labels with code and use them as expressions because they contain greek letters and subscripts. However the same problem occurs with the title, and it is much easier to show, so I will use that in my example.
...ANSWER
Answered 2021-Jun-15 at 08:05It might be preferable to create an expression instead of a character string.
If you want to turn a character string into an expression, you need to parse it:
QUESTION
Here I got a list of countries in an autocomplete dropdown and trying to filter those by starting letters of the country name. Example: If we type "Aus" all the country name with "aus" are being filtered.(See screenshot). I want to filter only "Australia and Austria" or any other country names with starting letters "Aus".
How to do that?
...ANSWER
Answered 2021-Jun-15 at 07:38According to Angular AutoComplete Inputs,
Input Description customFilter Custom filter function. You can use it to provide your own filtering function, as e.g. fuzzy-matching filtering, or to disable filtering at all (just pass (items) => items as a filter). Do not change the items argument given, return filtered list instead.You can define your custom filter logic and pass it to [customFilter]
@Input property.
.component.html
QUESTION
I wrote a little script to transliterate from Latin to a different script. Some characters are transliterated in Latin with two letters. For example (see code) g and j become gj
(\u{1050B}
). However, the script does not output gj
when "gj" is entered, but g
and j
(\u{1050A}
and \u{1050E}
) separately. How can I distinguish the keys from each other?
ANSWER
Answered 2021-Jun-15 at 04:21First put the keys with multiple characters first, then use a regular expression to match any of the keys, starting with the first, instead of splitting by ''
.
QUESTION
I'm trying to make a string that will write itself letter by letter until completing the sentence, and the speed of appearing each letter is based on an input that varies from 1 to 10. At the end of the string, it will blink for 5 seconds until that an alien will appear. My idea was to create a setInterval to add the letters and when the counter added the array size it would return the final animation of the loop with the new setInterval call, and before it was called again it had already been cleared, and called again in a recursion by setTimout callback to maintain the infinite loop. But it's not reaching setTimout, why?
//script.js
...ANSWER
Answered 2021-Jun-14 at 23:37The issue is that in the else
statement, you are returning a function that is never called.
QUESTION
I am using bootstrap tooltip that has black background and white letters on it. The entire tooltip and radiobutton is inside the update panel. when I click on the radio button and postback occurs, tool tip looses the black background and becomes white. I am not sure what am I doing wrong. I have several controls inside the update panel so I dont want to use seperate update panel for each control. Below is my code:
...ANSWER
Answered 2021-Jun-14 at 23:59After each update on UpdatePanel you need to initialize again your JavaScript.
UpdatePanel gives the pageLoad()
function that is called on each update - so you can use this for init, and re-init your javascript. So just change your code to this.
QUESTION
I have a text, where between sentences are spaces missed. It looks like end of sentence.Begin of another sentence
.
Using regex search in Notepad++ I find such places with \.[A-Z]
. But how can I insert spaces between points and uppercase letters using regex replace? It should then look like end of sentence. Begin of another sentence
ANSWER
Answered 2021-Jun-14 at 23:13You could utilize find and replace, then changing your regex just a little:
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