Forums
New posts
Search forums
What's new
New posts
New media
New media comments
New profile posts
Latest activity
Media
New media
New comments
Search media
Members
Current visitors
New profile posts
Search profile posts
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Learning
Photography Q&A
Sharpening in Post Processing
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="WayneF" data-source="post: 361330" data-attributes="member: 12496"><p>There are a few things to realize. Luminance is a Noise Reduction, not sharpening. It is in fact a blurring operation, which hides noise pixels. So, pay attention to what you're doing. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> No blind adjustments.</p><p></p><p>There is lots of info online, go with that. But...</p><p></p><p>Nobody listens, but sharpening should be done LAST, the final operation (later, at use time), and specifically honed for the output you are about to do. If you sharpen early, just because you can, then at final time, this may involve resharpening, etc. Should be done last, once, when you know what your use needs. Specifically, after the final resample to final smaller size. There is really no point of sharpening a 24 megapixel image. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> You can't use it that way.</p><p></p><p>Printers print at about 300 dpi, where the video screen is more like 100 dpi. These are different. One size does not fit all. Viewing 100% does not take that into account. You should view it (or check it) as it will be used.</p><p>But a video image might be 1000 pixels wide. To print 8x10 might be 3000 pixels wide. These are different.</p><p></p><p>My notions:</p><p></p><p>USM Radius is how much it widens the edge. Too much can obscure fine detail. I would suggest around 1.0 for video (maybe 0.6 if much fine detail, to maybe 1.5 if little, but 1.0 is good compromise). More Radius is sharper, but coarser edges, more visible. 1.0 does NOT mean 1 pixel.</p><p></p><p>And maybe up to Radius 3.0 for printing (1.5 to 3.0). Because printing prints many more pixels in the detail. You have to actually print it to see it, video shows pixels differently (but yes, you do learn what is needed). Again, one size for all is NOT optimum.</p><p></p><p>Then Amount, often 80 is good. 90 is getting to be a lot. You NEVER want to make the enhanced edges visible, or sharpening noticeable, you just want it to look a bit sharper.... and natural.</p><p></p><p>I set threshold to 4 or 5, for no good reason.</p><p></p><p>For video, since they have to be sized smaller, I mostly never sharpen for video, and simply only depend on Adobe BiCubic Sharper, set to be automatic in its resamples. Seems adequate. But a little more can be added time to time.</p></blockquote><p></p>
[QUOTE="WayneF, post: 361330, member: 12496"] There are a few things to realize. Luminance is a Noise Reduction, not sharpening. It is in fact a blurring operation, which hides noise pixels. So, pay attention to what you're doing. :) No blind adjustments. There is lots of info online, go with that. But... Nobody listens, but sharpening should be done LAST, the final operation (later, at use time), and specifically honed for the output you are about to do. If you sharpen early, just because you can, then at final time, this may involve resharpening, etc. Should be done last, once, when you know what your use needs. Specifically, after the final resample to final smaller size. There is really no point of sharpening a 24 megapixel image. :) You can't use it that way. Printers print at about 300 dpi, where the video screen is more like 100 dpi. These are different. One size does not fit all. Viewing 100% does not take that into account. You should view it (or check it) as it will be used. But a video image might be 1000 pixels wide. To print 8x10 might be 3000 pixels wide. These are different. My notions: USM Radius is how much it widens the edge. Too much can obscure fine detail. I would suggest around 1.0 for video (maybe 0.6 if much fine detail, to maybe 1.5 if little, but 1.0 is good compromise). More Radius is sharper, but coarser edges, more visible. 1.0 does NOT mean 1 pixel. And maybe up to Radius 3.0 for printing (1.5 to 3.0). Because printing prints many more pixels in the detail. You have to actually print it to see it, video shows pixels differently (but yes, you do learn what is needed). Again, one size for all is NOT optimum. Then Amount, often 80 is good. 90 is getting to be a lot. You NEVER want to make the enhanced edges visible, or sharpening noticeable, you just want it to look a bit sharper.... and natural. I set threshold to 4 or 5, for no good reason. For video, since they have to be sized smaller, I mostly never sharpen for video, and simply only depend on Adobe BiCubic Sharper, set to be automatic in its resamples. Seems adequate. But a little more can be added time to time. [/QUOTE]
Verification
Post reply
Forums
Learning
Photography Q&A
Sharpening in Post Processing
Top