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Title: Qimage Sharpening Methods Post by: JimH on January 06, 2012, 10:29:48 PM I would like to know something more about the sharpening method that is just to the right of Fill Light in the Batch Filter. There is much discussion of Unsharp Mask, Smart Sharpening, and now Tone Targeted Sharpening in the help files and online but I have never seen an explicit discussion (or even any explicit mention) of the "plain old sharpen" function. What method is being used? What advantages or disadvantages does it have compared to USM? That kind of discussion is what I'm looking for.
Sorry if I'm missing something here. I have done searches and have come up with nothing. JimH Title: Re: Qimage Sharpening Methods Post by: Fred A on January 06, 2012, 11:14:47 PM Quote I would like to know something more about the sharpening method that is just to the right of Fill Light in the Batch Filter. There is much discussion of Unsharp Mask, Smart Sharpening, and now Tone Targeted Sharpening in the help files and online but I have never seen an explicit discussion (or even any explicit mention) of the "plain old sharpen" function. What method is being used? What advantages or disadvantages does it have compared to USM? That kind of discussion is what I'm looking for. Jim, I used to know the exact numbers to the answer, but right now I can say that the Sharpen control that you refer to is a regular application of the unsharp mask in steps. I just don't recall the strength or radius numbers. You can use that control... no problems. I use it for a standard kick to sharpen a document or a scan of something. I could use it on images, but I have more fun with Tone Targeted Sharpening. Just for fun, Jim try the regular Unsharp mask with a setting of Radius 6 and strength 50 Fred Title: Re: Qimage Sharpening Methods Post by: JimH on January 07, 2012, 12:20:20 AM Thanks, Fred.
I thought perhaps it was an implementation of some other sharpening method than USM. I'll take your suggestion and play around with it some more along with USM. JimH (in Texas) Title: Re: Qimage Sharpening Methods Post by: Terry-M on January 07, 2012, 10:06:43 AM Quote but I have more fun with Tone Targeted Sharpening. Jim,You can see a video about TTS here http://www.youtube.com/watch_popup?v=xn7Ipw8IAhQ&vq=hd720 Terry Title: Re: Qimage Sharpening Methods Post by: JimH on January 07, 2012, 03:03:27 PM Terry,
Yes, I have watched that video and almost all the rest. They are very good and informative and I have enjoyed them. But my question was about "plain old sharpening". I still wonder why it is not mentioned anywhere in the help files or in the videos to my knowledge. I have used it often and with good results. Whenever I am using some function, I can always observe the results and draw my own conclusions but it helps to know what that function is doing and, to a degree, how it is doing it. I appreciate Fred's answer that it is just an easier-to-use implementation of USM and that scratches most of my itch but the more information the better. JimH |