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Post Processing
Alternatives for adjusting RAW photos.
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<blockquote data-quote="WayneF" data-source="post: 525673" data-attributes="member: 12496"><p>I would not call it pixelization (posterization yes), but yes, that last image certainly has some very serious JPG issues. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> Normally this banding is only seen in GIF files when the color depth (bits per pixel) is greatly insufficient, it's pretty hard to create it otherwise. I've never seen it in JPG, JPG issues are different issues. Having no explanation about what might cause it, I can only agree that NX-D did in fact seem to be a problem.</p><p></p><p>The histogram of this image shows extreme processing, and now does show 16 bands. This is an EXTEMELY ABNORMAL JPG histogram, but it has had extreme processing. NX-D was NOT designed that way.</p><p></p><p><img src="http://www.scantips.com/g2/banding.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p></p><p>Increasing brightness greatly also shows many square blocks, similar to 8x8 JPG blocks, but significantly larger than 8x8, and oddly in an alternating grid pattern.</p><p></p><p>My opinion is that you must have some strange option turned on that causes this (some fancy filter effect probably), and surely it can be fixed by turning it off, because this is very far from any normal processing. I just don't know what it is to tell you. If you have some ND-X option to Reset All Defaults, try that.</p></blockquote><p></p>
[QUOTE="WayneF, post: 525673, member: 12496"] I would not call it pixelization (posterization yes), but yes, that last image certainly has some very serious JPG issues. :) Normally this banding is only seen in GIF files when the color depth (bits per pixel) is greatly insufficient, it's pretty hard to create it otherwise. I've never seen it in JPG, JPG issues are different issues. Having no explanation about what might cause it, I can only agree that NX-D did in fact seem to be a problem. The histogram of this image shows extreme processing, and now does show 16 bands. This is an EXTEMELY ABNORMAL JPG histogram, but it has had extreme processing. NX-D was NOT designed that way. [IMG]http://www.scantips.com/g2/banding.jpg[/IMG] Increasing brightness greatly also shows many square blocks, similar to 8x8 JPG blocks, but significantly larger than 8x8, and oddly in an alternating grid pattern. My opinion is that you must have some strange option turned on that causes this (some fancy filter effect probably), and surely it can be fixed by turning it off, because this is very far from any normal processing. I just don't know what it is to tell you. If you have some ND-X option to Reset All Defaults, try that. [/QUOTE]
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Alternatives for adjusting RAW photos.
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