Re: Any way to sharpen this image?

Rod <bf@xxxxxxxxxxx> wrote in 0HbWh.22$Zm.4@trndny03:">news:0HbWh.22$Zm.4@trndny03:

james@xxxxxxxxxxxxxxxxxxxxxxxxxxx wrote:
On Thu, 19 Apr 2007 19:42:25 -0400, 223rem <223rem@xxxxxxxxx> wrote:

This is about as far as you can go. Any more and
you start to see artifacts that are worse than it
being out of focus.

Well, for a camera with a strong AA filter, sharpening an image to 300% is
normal, unless the image is a JPEG already extra-sharpened or is already
heavily sharpened in a converter. For downsampled images (or image from
cameras without AA fitlers), anything over 100% is usually heavy-handed,
though.

--

<>>< ><<> ><<> <>>< ><<> <>>< <>>< ><<>
John P Sheehy <JPS@xxxxxxx>
<<> <>>< <>>< ><<> <>>< ><<> ><<> <>><
.

Relevant Pages

  • Re: Scientifically Based Presharpening for Enlargement
    ... sharpening artifacts as well as compression artifacts that ... image, don't use this filter! ... You might address why the sharpening should be a preprocessing step. ... If the sharpening is a linear filter, and interpolation is a linear ...
    (sci.image.processing)
  • Re: Messing with Mother Nature
    ... so I could adjust the aperture and shutter speed separately. ... I had the camera set up on Matrix Exposure, ... But they take sharpening very well. ...
    (rec.boats)
  • Re: Messing with Mother Nature
    ... I had the camera set up on Matrix Exposure, ... But they take sharpening very well. ... you get to f/12 and higher, you'll probably notice more softening due ...
    (rec.boats)
  • Re: White Orchid
    ... There are a few things you can do in post processing to improve it further. ... If the camera did the sharpening, then turn it down for this picture. ...
    (rec.photo.digital)
  • Re: need to be sharpened?
    ... And the best post process "sharpening" is oddly enough called the "Unsharp mask". ... Some cameras don't have an AA filter and yield very sharp out of camera images. ... The RAW are usually not at all sharpened but may be during RAW import in PS. ... Beyond that, for large aperture shots, use a tripod too. ...
    (rec.photo.digital)
Loading