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Technical question for a first submission


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4 minutes ago, John Mitchell said:

Alamy doesn't seem to mind a bit of extra sharpening these days. No?

 

Their guidelines say no excessive sharpening (whatever excessive is). And "Don't sharpen, leave it to the customer". Difficult to know what you get pulled up for if you only do it on occasional images and Alamy only spot check....

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5 minutes ago, Steve F said:

 

Their guidelines say no excessive sharpening (whatever excessive is). And "Don't sharpen, leave it to the customer". Difficult to know what you get pulled up for if you only do it on occasional images and Alamy only spot check....

 

Yes, excessive sharpening is another story. I'm not a tech-savvy photographer, and I do very little post-processing of images. However, I do sometimes add a little extra sharpening beyond the RAW presets in Capture One Express. My guess is that Alamy means not to sharpen to the point where negative effects (like halos) are visible. Isn't "bicubic sharper" usually recommended for downsizing?

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12 hours ago, John Mitchell said:

Why bilinear? I've always used "bicubic sharper" for downsizing without problems.

Bicubic sharper applies extra sharpening, which I think risks increasing halos on edges. Downsizing make the image look sharper anyway, so I stick with that.

 

12 hours ago, John Mitchell said:

Alamy doesn't seem to mind a bit of extra sharpening these days. No?

 

Not sure. I've never had a QC fail for over-sharpened (yet). I think that the removal of AA filters and the improvement in lenses is making images sharper as well, so the "goal posts"/expectations may have moved?

 

Mark

Edited by M.Chapman
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6 hours ago, M.Chapman said:

Bicubic sharper applies extra sharpening, which I think risks increasing halos on edges. Downsizing make the image look sharper anyway, so I stick with that.

 

 

Not sure. I've never had a QC fail for over-sharpened (yet). I think that the removal of AA filters and the improvement in lenses is making images sharper as well, so the "goal posts/expectations may have moved?

 

Mark

 

Thanks. I figured the name "bicubic sharper" might mean some sharpening is applied, but I've never noticed any difference. Affinity Photo, which I sometimes use for resizing images, has an additional resizing option called Lanczos 3 (Separable and Non-Separable), which I've never tried.

Edited by John Mitchell
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1 minute ago, Faiz Dib said:

Hello,

 

Below are links to the 3 photos of my 2nd test which successfully passed the QC!

Thank you all for your help and your valuables advices that helped me a lot in the choice and the editing of these 3 photos.

 

Faïz

 

https://ibb.co/qWCzVKk

https://ibb.co/tms6rRb

https://ibb.co/873wPn6

That's a stunning improvement. Perhaps you don't need new specs after all😉

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4 hours ago, Faiz Dib said:

Hello,

 

Below are links to the 3 photos of my 2nd test which successfully passed the QC!

Thank you all for your help and your valuables advices that helped me a lot in the choice and the editing of these 3 photos.

 

Faïz

 

https://ibb.co/qWCzVKk

https://ibb.co/tms6rRb

https://ibb.co/873wPn6

Bravo!

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On 11/11/2022 at 18:44, John Mitchell said:

 

Why bilinear? I've always used "bicubic sharper" for downsizing without problems.

 

Alamy doesn't seem to mind a bit of extra sharpening these days. No?

 

Go easy on the sharpening, as per Alamy guidelines.

 

The photo should be in as much of a "base state" as possible. The intended destination media (screen, print) determines how much output sharpening the image should have, which is the client's decision.

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