Welcome to another exciting episode! Today we will be discussing a topic that seems to be a bit of a confusing one for everyone... storing BLOB images in MySQL and then showing them again using PHP. While it is always advised against, we will show you a little demo code for how this can be done and discuss why/why not do this. We will then talk a little about the ...
The other day someone on the board had asked about histogram equalization and it had sparked some thoughts about how it is applied to picture correction and enhancement. Then of course it hit me like a ton of bricks (ouch!), why not make this into a blog post? So here I am telling all you fine people about using PHP to equalize the histogram information in pictures. Now we all ...
Here we go again! Another exciting blog entry talking about programming theory. This episode comes by way of a question that appeared on the board today. Someone was looking to pick out colors from an image, convert them to a hex value and write them to a CSV file (comma separated file) for Excel. I put this in the Deep Underground Misc category because frankly I don't know much about ...
Ever wonder how they make those nifty color pickers on graphics programs like Adobe Photoshop? Typically they have a formula that generates the colors of the spectrum and makes it into one of those colorful swatches. You may have the swatch but perhaps you want to know how you can go about giving your users the ability to mouse over the swatch and pick out colors. Maybe display things like ...
On occasion I have seen people asking about making scrolling images. Often times they are asking this question in response to creating their own games to get something like a scrolling background without needing to use a picturebox... which can be pretty bulky. One way to do this is by taking the reigns and controlling the paint event of a control or form. By determining what is drawn and when, ...
