A Tool that provides automatic kerning for ligature based OpenType fonts in Microsoft Volt

Related tags

General Utilitiesfontarabicfarsiurdukerningnastaliq
Overview

Kerning

A Tool that provides automatic kerning for ligature based OpenType fonts in Microsoft Volt

There are three stages of the algorithm.

  • The first stage is to process every single glyph image and extract the extents of the strokes in terms of height at several horizontal locations. The output can be plotted by plot_glyph_data in module heights
import source.heights as ht
ht.plot_glyph_data(LookUp,"path/to/glyph.png","glyph")

LookUp is a dictionary that is output of the stage 1 processing:

import source.ligature_kerning as lk
lk.process_stage_1()
  • LookUp is automatically saved in obj/ folder after the stage processing finishes.
  • Following are some examples of the output: Reh glyph or glyph flsvin glyph Red dots depict the bottom height of the glyph at a shift of 200 points. The green dots depict the same but from the top. The idea to check if any two glyphs would fit over each other for X amount of shift? Once the red dots from the left glyph can fit on top of the green dots of the right glyph, the kerning is possibble. Example: In the following example the two glyphs show can kern by 600 (3*200) units.
  • The second stage of processing is meant to calculate, for each 200 uints of horizontal shift how much glyphs will fit on top of it without collision. This data is stord is right collision list. Another scenario is caculate how many glyphs can this particular glyph fit on top of, for each shift of 200 uints. This part is most intensive calculation wise as it has O(N^2) complexity.
  • The last stage of processing is to form groups of glyphs based on collision data (output of stage 2) and the glyph height data (output of stage 1) in order to generate volt files (that can be used to implement kerning in OpenType fonts.)

Prerequisites

Development environment

Latest versions of the following packages are recommended:

  • Python 3.6 or higher
  • NumPy
  • OpenCv
  • Matplotlib

Glyph setup

Ligatures/Glyphs should be contained in a base directory (e.g. C:/Ligatures) having the following sub-directories (in PNG format):

  • Ligatures_Regular This directory contains all the multi character glyph e.g. sbb (سبب), slslo (سلسلہ), etc.
  • Haroof_Regular This Directory contains all the haroof (alphabets) glyph images in PNG format
  • Symbols This directory contains all the symbols like parenthesis, period, commas, etc.
  • Ligatures_Kashida This directory contains kasheeda (italicised or elongated) glyphs
  • Haroof_Kashida This directory contains kasheeda alphabets

Assumptions about input images

We assume that the glyphs are 2048 upm and the PNG Images generated are 300 dpi. This setting roughly gives image height of ~750 pixels.

You might also like...
Stubmaker is an easy-to-use tool for generating python stubs.

Stubmaker is an easy-to-use tool for generating python stubs. Requirements Stubmaker is to be run under Python 3.7.4+ No side effects during

Toloka 24 Aug 28, 2022
PyHook is an offensive API hooking tool written in python designed to catch various credentials within the API call.
PyHook is an offensive API hooking tool written in python designed to catch various credentials within the API call.

PyHook is the python implementation of my SharpHook project, It uses various API hooks in order to give us the desired credentials. PyHook Uses

Ilan Kalendarov 158 Dec 22, 2022
It is a tool that looks for a specific username in social networks
It is a tool that looks for a specific username in social networks

It is a tool that looks for a specific username in social networks

MasterBurnt 6 Oct 7, 2022
This tool lets you perform some quick tasks for CTFs and Pentesting.
This tool lets you perform some quick tasks for CTFs and Pentesting.

This tool lets you convert strings and numbers between number bases (2, 8, 10 and 16) as well as ASCII text. You can use the IP address analyzer to find out details on IPv4 and perform abbreviation as well as expansion on IPv6 addresses.It can also perform a two's complement calculation as well.

Ayomide Ayodele-Soyebo 1 Jul 16, 2022
a tool for annotating table

table_annotate_tool a tool for annotating table motivated by wiki2bio,we create a tool to annoate all types of tables,this tool can annotate a table w

wisdom under lemon trees 4 Sep 23, 2021
A simple tool that updates your pubspec.yaml file, of a Flutter project, without altering the structure of your file.
A simple tool that updates your pubspec.yaml file, of a Flutter project, without altering the structure of your file.

A simple tool that updates your pubspec.yaml file, of a Flutter project, without altering the structure of your file.

null 3 Dec 10, 2021
A tool written in python to generate basic repo files from github
A tool written in python to generate basic repo files from github

A tool written in python to generate basic repo files from github

Riley 7 Dec 2, 2021
Simple Python tool that generates a pseudo-random password with numbers, letters, and special characters in accordance with password policy best practices.
Simple Python tool that generates a pseudo-random password with numbers, letters, and special characters in accordance with password policy best practices.

Simple Python tool that generates a pseudo-random password with numbers, letters, and special characters in accordance with password policy best practices.

Joe Helle 7 Mar 25, 2022
SmarTool - Smart Util Tool for Python

A set of tools that keep Python sweeter.

Liu Tao 9 Sep 30, 2022
Releases(v0.1)

  • v0.1(Sep 18, 2021)

    This is a stable release. Tested for different Nastaliq font types (Dehlavi and Lahori)

    Please use 1000+ ligatures for correct processing. If the ligatures are very few, please change the thresholds in source/settings.txt file.

    Source code(tar.gz)
    Source code(zip)

  • v0.0.5(Sep 14, 2021)

  • v0.0.4(Sep 9, 2021)

    1. Haroof kerning fix for Lahoori Nastaleeq fonts.
    2. General Improvements to kerning
    3. Settings file change.
    4. Group formation made more general (less dependent on user input/settings file)
    Source code(tar.gz)
    Source code(zip)

  • v0.0.3(Sep 5, 2021)

    This release targets a few bug fixes as well as the following changes:

    1. Settings file was not taking effect, this bug has been fixed.
    2. Group formation was erroneous for the lowest group, giving rise to the exclusion of lowest height glyphs. The fix has been made.
    3. The height limit for input images has been widened due to feedback from users (as some Lahori Nastaleeq fonts can go up to 1200 pixels high)
    4. To ensure the baseline is the same for all glyphs, there is an additional check to ensure all input images are of the same height.
    Source code(tar.gz)
    Source code(zip)

  • v0.0.2(Aug 30, 2021)

    First release mainly for windows users (as it is used to generate VOLT files, which is a Windows tool). Code has been tested on Windows 10. BAT files are added to make life easy for users who are not well versed in Python.

    Source code(tar.gz)
    Source code(zip)
Owner
Sayed Zeeshan Asghar
Sayed Zeeshan Asghar
GitHub Repository
Utility to add/remove licenses to/from source files

Utility to add/remove licenses to/from source files. Supports processing any combination of globs, files, and directories (recurse). Pruning options allow skipping non-licensing files.

Eduardo Ponce Mojica 2 Jan 29, 2022
Nmap script to guess* a GitLab version.

gitlab-version-nse Nmap script to guess* a GitLab version. Usage https://github.com/righel/gitlab-version-nse cd gitlab-version-nse nmap target --s

Luciano Righetti 120 Dec 05, 2022
VerSign: Easy Signature Verification in Python

VerSign: Easy Signature Verification in Python versign is a small Python package which can be used to perform verification of offline signatures. It a

Muhammad Saif Ullah Khan 3 Dec 01, 2022
Personal Toolbox Package

Jammy (Jam) A personal toolbox by Qsh.zh. Usage setup For core package, run pip install jammy To access functions in bin git clone https://gitlab.com/

5 Sep 16, 2022
Helpful functions for use alongside the rich Python library.

🔧 Rich Tools A python package with helpful functions for use alongside with the rich python library. 󠀠󠀠 The current features are: Convert a Pandas

Avi Perl 14 Oct 14, 2022
Dynamic key remapper for Wayland Window System, especially for Sway

wayremap Dynamic keyboard remapper for Wayland. It works on both X Window Manager and Wayland, but focused on Wayland as it intercepts evdev input and

Kay Gosho 50 Nov 29, 2022
This is a package that allows you to create a key-value vault for storing variables in a global context

This is a package that allows you to create a key-value vault for storing variables in a global context. It allows you to set up a keyring with pre-defined constants which act as keys for the vault.

Data Ductus 2 Dec 14, 2022
RapidFuzz is a fast string matching library for Python and C++

RapidFuzz is a fast string matching library for Python and C++, which is using the string similarity calculations from FuzzyWuzzy

Max Bachmann 1.7k Jan 04, 2023
Astvuln is a simple AST scanner which recursively scans a directory, parses each file as AST and runs specified method.

Astvuln Astvuln is a simple AST scanner which recursively scans a directory, parses each file as AST and runs specified method. Some search methods ar

Bitstamp Security 7 May 29, 2022
Python based tool to extract forensic info from EventTranscript.db (Windows Diagnostic Data)

EventTranscriptParser EventTranscriptParser is python based tool to extract forensically useful details from EventTranscript.db (Windows Diagnostic Da

P. Abhiram Kumar 24 Nov 18, 2022
ULID implementation for Python

What is this? This is a port of the original JavaScript ULID implementation to Python. A ULID is a universally unique lexicographically sortable ident

Martin Domke 158 Jan 04, 2023
JeNot - A tool to notify you when Jenkins builds are done.

JeNot - Jenkins Notifications NOTE: under construction, buggy, and not production-ready What A tool to notify you when Jenkins builds are done. Why Je

1 Jun 24, 2022
Fcpy: A Python package for high performance, fast convergence and high precision numerical fractional calculus computing.

Fcpy: A Python package for high performance, fast convergence and high precision numerical fractional calculus computing.

SciFracX 1 Mar 23, 2022
Pass arguments by reference—in Python!

byref Pass arguments by reference—in Python! byrefis a decorator that allows Python functions to declare reference parameters, with similar semantics

9 Feb 10, 2022
Abby's Left Hand Modifiers Dictionary

Abby's Left Hand Modifiers Dictionary Design This dictionary is inspired by and

12 Dec 08, 2022
A python package for your Kali Linux distro that find the fastest mirror and configure your apt to use that mirror

Kali Mirror Finder Using Single Python File A python package for your Kali Linux distro that find the fastest mirror and configure your apt to use tha

MrSingh 6 Dec 12, 2022
Software to help automate collecting crowdsourced annotations using Mechanical Turk.

Video Crowdsourcing Software to help automate collecting crowdsourced annotations using Mechanical Turk. The goal of this project is to enable crowdso

Mike Peven 1 Oct 25, 2021
Here, I find the Fibonacci Series using python

Fibonacci-Series-using-python Here, I find the Fibonacci Series using python Requirements No Special Requirements Contribution I have strong belief on

Sachin Vinayak Dabhade 4 Sep 24, 2021
A thing to simplify listening for PG notifications with asyncpg

asyncpg-listen This library simplifies usage of listen/notify with asyncpg: Handles loss of a connection Simplifies notifications processing from mult

ANNA 18 Dec 23, 2022
Various importers for cointracker

cointracker_importers Various importers for cointracker To convert nexo .csv format to cointracker .csv format: Download nexo csv file. run python Nex

Stefanos Anastasiou 9 Oct 24, 2022