Articles Written by Sjaak Priester

Delaunay Triangles

Learn about an algorithm to calculate this intriguing and important data structure in computer graphics.

Better GIFs with Octrees

Use adaptive color quantization to create better GIF files with GDI+.

A Sharp View with QGaussFilter

Despite its somewhat confusing name, Unsharp Mask is an important procedure to enhance the quality of bitmap pictures. The QGaussFilter class performs Unsharp Mask, and more. (The project code was updated.)

Image Properties Revealed

Learn everything you always wanted to know about your bitmap pictures, and more, with QImageProperties.

Look Closer with QZoomView

Build an extended CScrollView with added zooming capabilities. (The article and demo project/source code file were updated.)

"Rubber Sheeting" with QWarpTracker

Warping is the most drastic way to change the form of a GDI+ graphics object. The class QWarpTracker lets you do it interactively.

Top White Papers and Webcasts

  • Savvy enterprises are discovering that the cloud holds the power to transform IT processes and support business objectives. IT departments can use the cloud to redefine the continuum of development and operations—a process that is becoming known as DevOps. Download the Executive Brief DevOps: Why IT Operations Managers Should Care About the Cloud—prepared by Frost & Sullivan and sponsored by IBM—to learn how IBM SmartCloud Application services provide a robust platform that streamlines …

  • Live Event Date: July 22, 2014 @ 2:00 p.m. ET / 11:00 a.m. PT In this WhatWorks analysis, John Pescatore examines a use case where end users had local administrative rights on their PCs and it had gotten out of hand for this Fortune 500 Energy and Utilities company. The compelling event that prompted the company to reexamine this situation was the migration to Windows 7. In Windows XP, a custom tool that allowed users one of three levels of administrative rights to their workstations would need to be …

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