| Printable Version of Topic
Click here to view this topic in its original format |
| Unofficial VirtualDub Support Forums > VirtualDub Filters and Filter Development > Need Radial-gradient Sharpening Filter |
| Posted by: Oznog Mar 25 2011, 06:49 PM |
| Odd requirement here... I have a ContourHD which takes a 135 deg wide-angle shot. This results in considerable barrel distortion, which I use Barrel Distortion Correction to flatten quite effectively into a wide, panoramic shot. The minor problem is that the original footage has a slight blur at the more extreme angles, and the Barrel Distortion Correction process stretching adds an additional blurring to the more extreme angles. I can Sharpen the image with a number of filters, but it doesn't need any sharpening in the center. It needs progressively more sharpening as the distance from the center increases to be "right". Otherwise, any value I pick for Sharpening is oversharpened in the center and/or undersharpened furthest from the center. It occurs to me I need a filter which applies Sharpening in an increasing radial gradient from the center. Does any such filter exist, or is there any odd way of applying other filters to do this? |