Noise Reduction and Sharpening
As explained in the previous page, both the Interpolation setting in UFRaw and the aggressiveness of the Wavelet Sharpen plugin determine, how much noise is removed from an image without losing too much detail. To demonstrate the interaction of these two parameters, I have created a series of images with all combinations of Interpolation from 0 to 250 (in steps of 25) and Sharpening from 0 to 2.4 (in steps of 0.2). Use the buttons to increase or decrease the values for any of the two images below. The zoom toggle button lets you switch between a pixel-for-pixel version of the image, and one that has been scaled down by the factor of 3.
| noise reduction | |||
| sharpness | |||
| zoom | |||