I’ve found some very useful ways to use BitmapData.histogram() however, I’m hoping someone can explain something proper terms/explanation for me.
Let’s assume I have a 100x100 GIF in Flash, it only contains Green (#00FF00) pixels and transparent pixels.
When I trace myBitmapdata.histogram()[0][0] - I’m tracing the first index of the 255 item Vector for the Red Channel. Since there isn’t any Red within my BitmapData - that first index reads 10,000.
How can I explain that? Would it be correct to say:
“There are 10,000 pixels in this bitmap, and not one of them contains Red, hence it’s returning 10,000?”
Here is a quick sample of what I’m trying to explain: http://lextalkington.com/ComparingImages.swf
Hopefully this makes sense to someone, appreciate the help.
