Dilshan R Jayakody’s Web Log

Steganography is a method of hiding information and one of the techniques is to hide an image inside a "cover image" by without distorting the supplied "cover image". ImageHide is command-line driven console application to perform this task and it is capable to hide/embed a colored or gray-scale image inside another color or gray-scale cover image and/or extract an embedded image from the supplied "cover image". This application is developed using FPC / Lazarus and it can execute on any FPC supported operating system which including Linux, Windows, Mac OS, etc. ImageHide is an open source project and its source code is available at https://github.com/dilshan/image-hide under the terms of GNU General Public License version 3.0 . Compiled binaries of ImageHide are also available for both Linux and Windows operating systems. As an input, this application accepts bitmap, PNG or JPEG image formats and it can export the processed image as bitmap or PNG ...

ParseGen is rule driven, parser generator for FPC / Lazarus . ParseGen is design using FPC, FCL and Lazarus and it mainly supports for Windows and Linux operating systems. ParserGen scanner is slight DFA (deterministic finite automaton) state machine. This scanner can operate on case sensitive or case-insensitive modes and it can easily configure/extend through given class structure. The parser of the ParseGen is recursive descent parser. ParseGen generate this parser using high-level source language and this language is logically similar to EBNF grammar. For example, in ParseGen, definition for "term" and "expression" can be written like this: define: expression   optional: "-","+"   end          term          loop: "-","+"     term   end   end define: term   factor   loop: "*","/"     factor   end   end This parser generator...

nanoide is an effort to build scriptable build tool with source code editor. Initially I developed this tool to test some of my ongoing compiler projects and later I extend it with source code editors and with simple UI. nanoide build 138 with sample build script nanoide build system is based on FreePascal style scripting system and it comes with more than 50 inbuilt support functions . With help of nanoide, users can create complex conditional build flows and it helps to automate system testing processes also. Current version (build 145) of nanoide editor support C/C++, Java, Pascal/Delphi/Lazarus, Python, HTML, XML, CSS, Perl, Basic/Visual Basic, SQL, Tex, DOS batch scripts and UNIX\Linux shell scripting. nanoide is developed using Lazarus and it can be compiled and execute on Windows, Linux and Mac OS platforms. Virtually nanoide is compatible with any command line-driven compiler and it is tested with TinyC Compiler , Lua , Python , FPC and with PHP .  ...

SigLab is a combination of open hardware and FOSS ( free and open source software ) projects to provide easy to use and full featured scriptable USB interface for digital electronic experiments. SigLab USB interface consisted with Microchip's PIC18F2550 microcontroller unit and it provides 14 bidirectional (digital) I/O ports for external interfacing. Scriptable language of SigLab had some resemblance to Pascal programming language and this system provides complete IDE for script editing and debugging. Current version of SigLab offers following core features to its users: Provide easy to use USB controller for digital electronic projects Avoid complexities of USB peripheral programming by providing full featured, easy to use scriptable interface Introduce DIY - USB controller with standard electronic components Provide live workspace to debug/watch hardware and firmware operations All the SigLab source codes, design files and other reference documents are available to download at ...