noisynose

It's just bugfixes, it doesn't belong in an extra plugin... I mean I'm just proposing a patch, take it or leave it, though I hardly see any reason for refusing it apart from backward compatibility -- and I don't think it's a concern for Paint.net. Or maybe this is not the right place to submit patches??

This function is "add noise", not remove Basically, the first and most important fix is there to give better control on the amount of noise you add, while the second one is there to fix a minor bug in the coloration of the noise. (and yes, there is a very tiny performance improvement, but that's not really the point)

The "Add noise" effect is pretty "jumpy" for low amounts of noise, i.e. moving from 11 to 12 has a huge effect. It could be easily fixed by changing int dev = this.intensity * this.intensity / 64; ... dstPtr->R = Utility.ClampToByte(srcPtr->R + ((r * dev * 16 + 32768) >> 16)); dstPtr->G = Utility.ClampToByte(srcPtr->G + ((g * dev * 16 + 32768) >> 16)); dstPtr->B = Utility.ClampToByte(srcPtr->B + ((b * dev * 16 + 32768) >> 16)); into int dev = this.intensity * this.intensity / 4; ... dstPtr->R = Utility.ClampToByte(srcPtr->R + ((r * dev + 32768) >> 16)); dstPtr->G = Utility.ClampToByte(srcPtr->G + ((g * dev + 32768) >> 16)); dstPtr->B = Utility.ClampToByte(srcPtr->B + ((b * dev + 32768) >> 16)); Additionally I think the line i = (1867 * r + 9618 * g + 4899 * >> 14; was probably meant to be i = (4899 * r + 9618 * g + 1867 * >> 14; Cheers