Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
03-14-2019, 01:59 PM   #1
New Member
geb88's Avatar

Join Date: Jan 2016
Location: Warsaw
Photos: Gallery | Albums
Posts: 14
SilkyPix reduces sharpening when saving to JPEG format

Hi, all! Not sure if I should post this thread in beginners or in Post Processing subforum... so let's start here.

When I use SilkyPix Studio (added to my K50 by default), sharpen RAWs and save them as JPEGs I notice how awful sharpness of the image is reduced. Of course, it's compression, but... no! The output shouldn't be so blurry in resolution such as 2700x2700px. I always set JPG quality to 100and the sharpened image is worse than JPEG made by camera in RAW+ program.

What the hell is going on with SilkyPix? Or is it only me? :/ Is there any other free or cheap soft I could use for postprocessing my DNG RAWs?

Here are comparisions:
Default JPEG made by camera in RAW+ program vs. "Sharpened" JPEG made from RAw via SilkyPix
RAW in SilkyPix vs JPEG output from it

Attached Images
   

Last edited by geb88; 03-14-2019 at 02:13 PM. Reason: clarification
03-14-2019, 04:39 PM   #2
Senior Member




Join Date: Oct 2014
Location: Bowmanville
Photos: Albums
Posts: 257
How come your K-50 isn't producing 4928 x 3264 size images?
I always work with the most pixels I can get and if needed, downsize after. Or am I reading your settings wrong? It looks like you loaded a 2700 x 2700 image, re-edited it further, then re-saved it again.
03-14-2019, 06:26 PM   #3
Pentaxian
dosdan's Avatar

Join Date: Dec 2007
Location: Brisbane, Australia
Photos: Gallery | Albums
Posts: 1,734
I don't normally shoot DNG+. But here are some development comparisons. I've got SilkyPix Studio Developer Pro v6. The US Marines were visiting Brisbane and I photographed this vessel from across the river using a K3 + DA*60-250/F4 @ 250mm FL, 1/320s, f/4, ISO640. 21 Jun 2015 17:00:28. Sunset was 17:01 on that day so I was shooting in lowish light.

"Natural Fine" sharpening preset. Comparing the JPEG development sharpening settings of 31%, 0.2px radius, 8Lv threshold (yours) to 70%, 0.6, 1 (SP's "Original Image" preset).




(All comparisons are at 100% zoom level. I suggest you open these comparison images of approx. 1680x1000 in a new browser tab, and zoom in to 100%, if necessary.)

At 100%, you can see the noise here. I'll compare the "campaign ribbons" at the top LH. I think you could have used more JPEG development sharpening here.


Next, the "Natural Fine", 100%,0.6pc,1LV version vs "No Sharpening" (in SP), saving as 16-bit TIFF (no output sharpening) for further processing in PSP X7. In PSP, with the "Focus Magic" (deconvolution sharpening) plugin set to a radius of 4px, and PSP USM sharpening of 70%, 0.6, 1. (I often use this processing combo, and let FM chose a suitable radius based on its analysis of the initial sharpness of that part of an image.)



Even though devolution sharpening usually increases the noise, the overall result shows less noise here, and the sharpness is still acceptable.


Finally, no sharping in SP -> TIF to PSP, no FM, just USM of 200%,0.6,1 vs the same but including FM 4px and USM of 70%, 0.6,1.



You can see that the higher USM was not sufficient compared to the difference FM made here.

Finally, here's the full image. (I've only worked on the sharpening, not the colouration or TRC.) No sharpening in SP. In PSP, USM 200%,0.6,1, resized to 562x800, USM again of 100%,1,1.




If you want to work with the PEF, here's a dropbox link to it: Dropbox - K3_63531.PEF


Dan.

Last edited by dosdan; 03-14-2019 at 06:47 PM.
03-14-2019, 06:27 PM   #4
Loyal Site Supporter
Loyal Site Supporter
pschlute's Avatar

Join Date: Mar 2007
Location: Surrey, UK
Photos: Gallery
Posts: 2,694
QuoteOriginally posted by geb88 Quote
What the hell is going on with SilkyPix? Or is it only me? :/ Is there any other free or cheap soft I could use for postprocessing my DNG RAWs?
Hi. i have used Silkypix Developer Studio Pro for years. It is a very capable raw processor.

I suggest three things:

1. You select your output resolution suitable for how you will view the image. My screen has a resolution 2158 x 1440. So if I want to view a full screen square image I resize to 1440 x1440. You are producing a 2705 x 2705 image which means unless you have a very hi res screen your system will be resizing for you and this can introduce a degree of softness.

2. Your Input sharpening parameters (left picture) ....move the sliders back to the default: Detail emphasis 75 and False outline control 0

3. Your output sharpening (right hand picture) Unsharp Mask.....Change those settings. Start with Amount 60.... Radius 0.60.....Threshold 1 Change the Amount to see a change in sharpness. You shouldnt need to go outside of the range 30-85 to sharpen an image for screen or web viewing.

03-14-2019, 08:02 PM   #5
Loyal Site Supporter
Loyal Site Supporter
pschlute's Avatar

Join Date: Mar 2007
Location: Surrey, UK
Photos: Gallery
Posts: 2,694
QuoteOriginally posted by Kobie Quote
How come your K-50 isn't producing 4928 x 3264 size images?
He has cropped the image
03-15-2019, 10:54 AM   #6
New Member
geb88's Avatar

Join Date: Jan 2016
Location: Warsaw
Photos: Gallery | Albums
Posts: 14
Original Poster
Yes, the image was cropped to 2700x2700px (not resized). I had to edit the original post because images I attached were visibly compressed, hence I uploaded them to Flickr and linked here.

Thank you all for the interest and suggestions, especially Dan for his comparisons and settings :-) I will attempt to do the same in my Silkypix Developer Studio 3 LE and compare the results.
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
camera, image, jpeg, pentax help, photography, post, postprocessing, postproduction, raws, silkypix, silkypix for k-50, troubleshooting
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Google reduces JPEG file size by 35% interested_observer General Photography 21 04-21-2017 10:43 PM
In-camera jpeg sharpening. Dewman Pentax DSLR Discussion 5 06-11-2015 03:38 PM
Focusing closer than infinity reduces light entering lens! Jonathan Mac Pentax SLR Lens Discussion 4 04-20-2010 03:17 PM
Hoya reduces ad budgets benjikan Pentax News and Rumors 2 04-24-2008 09:16 PM
Help, Silkypix and saving files. + Paint.net Pentax RAWloader Peter Zack Photographic Technique 2 01-23-2008 01:41 PM



All times are GMT -7. The time now is 07:48 AM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top