Convert a Binary File to 'C' Unsigned Character Byte Array
When you want to embed binary data, like a jpeg image, into your program.
Convert Text to a 'C' Subroutine
When you want to embed a large amount of text in your program.
Useful to eliminate dependencies on external resources.
exif: Extract Thumbnails from Digital Photos
Extract the thumbnail image from an HP digital photo.
[FreeBSD] / ports / graphics / exif
Most digital cameras produce EXIF files, which are JPEG files with extra tags that contain information about the image. The EXIF library allows you to parse an EXIF file and read the data from those tags.
libgd - Boutelle Graphics - gcc command line
Command line for compiling a C program that uses the GD graphics library.
The GD library creates PNG, JPEG and GIF images, among other formats. GD is commonly used to generate charts, graphics, thumbnails, and most anything else, on the fly. While not restricted to use on the web, the most common applications of GD involve web site development.
Using Cairo Graphics Library for Dynamic Web Graphics
Here is an example of a CGI web application that dynamically creates a PNG graphic image and displays it in a web browser without creating an intermediate file.
Download cairohello.c 'C' source code
gcc cairohello.c -L /usr/local/lib -lcairo
Sparks and Flames
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