Image and Picture Processing

Perl Tutorials - Herong's Tutorial Examples

∟Image and Picture Processing

This chapter provides tutorial examples and notes on creating and processing images and managing image file formats. Topics include installing 'Imager' module; drawing graphical elements; converting image file formats; trying to install 'Imager::File::PNG'.

Imager - Create and Save Image

Imager - Draw Graphical Elements

Imager - Convert Image File Format

Imager::File::PNG - PNG File Format

Install LIBPNG from Source Code

Install Imager::File::PNG Manually

Install PerlMagick from Source Code

Takeaways:

"Imager" is a Perl module for creating and altering 24-bit images.
"Imager" supports only bmp, ico, pnm, raw, sgi and tga image file formats.
"Imager::File::PNG" is a Perl module to support PNG file format. But I could not install it on macOS.

Table of Contents

About This Book

Perl on Linux Systems

Perl on macOS Computers

ActivePerl on Windows Systems

Data Types: Values and Variables

Expressions, Operations and Simple Statements

User Defined Subroutines

Perl Built-in Debugger

Name Spaces and Perl Module Files

Symbolic (or Soft) References

Hard References - Addresses of Memory Objects

Objects (or References) and Classes (or Packages)

Typeglob and Importing Identifiers from Other Packages

String Built-in Functions and Performance

File Handles and Data Input/Output

Open Files in Binary Mode

Open Directories and Read File Names

File System Functions and Operations

►Image and Picture Processing

Using DBM Database Files

Using MySQL Database Server

Socket Communication Over the Internet

XML::Simple Module - XML Parser and Generator

XML Communication Model

SOAP::Lite - SOAP Server-Client Communication Module

Perl Programs as IIS Server CGI Scripts

CGI (Common Gateway Interface)

XML-RPC - Remote Procedure Call with XML and HTTP

RPC::XML - Perl Implementation of XML-RPC

Integrating Perl with Apache Web Server

CGI.pm Module for Building Web Pages

LWP::UserAgent and Web Site Testing

Converting Perl Script to Executable Binary

CPAN (Comprehensive Perl Archive Network)

Archived Tutorials

Full Version in PDF/EPUB