How to Create a Gallery of Image in Thumbnails
The PHP language has functions for image processing producing outstanding results.These functions are used to create thumbnails.
This tutorial outlines three stages how to make thumbnails usable in a gallery of images on a Web page.
PHP functions of the GD library.
Comparison between PHP and an image processing software.
Formulas of interpolation.
Creating an intermediate thumbnail.
Gallery of thumbnails of the same size.
Calculation of offsets to crop the image.
Different formats of graphics files.
Gallery of thumbnails.
This tutorial has been the base for a ready-to-use script that resizes
images or converts the content of a directory to thumbnails.