Cameras and editing programs have a useful tool for evaluating exposure. Here's what you need to know about the histogram and ...

When you open Excel and start working with data, you might wonder how to visualize the distribution of your data points. This is where a Histogram Chart comes into play. A Histogram Chart is a type of ...

I've been trying to automate some image processing, and I'm pretty sure I'm missing something painfully obvious. What I want to do is mimic the black/white levels feature in photoshop - essentially ...