Approve the Cookies
This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and our Privacy Policy.
OK
Index  •   • New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear  •   • Reviews
Guest
New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear  •   • Reviews
Register to forums    Log in

 
FORUMS Post Processing, Marketing & Presenting Photos RAW, Post Processing & Printing 
Thread started 21 Aug 2009 (Friday) 07:57
Search threadPrev/next
sponsored links
(this ad will go away when you log in as a registered member)

In DPP RAW thumbnails appear sharp and JPG are soft. What is that about?

 
Fastfwd13
Senior Member
Avatar
491 posts
Joined Dec 2007
Location: Canada, Montreal
     
Aug 21, 2009 07:57 |  #1

Does DPP apply some kind of sharpening to the RAW images when making the thumbnails?

Also have not found any difference when applying sharpening from the DPP tool. 0 or 500, same image.




  
  LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as a registered member)
napolar
Senior Member
Avatar
259 posts
Likes: 3
Joined Apr 2004
Location: Franklin, TN
     
Aug 21, 2009 09:11 |  #2

Fastfwd - My understanding is that DPP does not really display the RAW file, what it displays is a JPG file that is embedded in the RAW file. Perhaps it looks sharper than the full size JPG because of the size. Smaller will look sharper. Hope this helps


Art
7D & 20D
Tamron 28-75 F2.8
Canon 70 - 200 F4 L
P.O.T.N Op-Tech Strap

  
  LOG IN TO REPLY
Lowner
"I'm the original idiot"
Avatar
12,924 posts
Likes: 10
Joined Jul 2007
Location: Salisbury, UK.
     
Aug 21, 2009 09:18 |  #3

I get a massive difference in DPP between no sharpening and the 500 full monty. It goes from soft to so hard my eyes bleed from looking at the sharpened noise. Not sure why yours would not.

As I understand it, the RAW thumbnails are in fact very low res Jpegs created in camera from the RAW data, and have camera preset preferences applied, with maybe an amount of sharpening applied by default, although I cannot confirm that. The full RAW file will have no sharpening applied, although if you choose to use one of DPP's presets, then various tweaks are applied automatically, including sharpening.

The basic data as captured by the sensor will be a touch soft. Allegedly caused by the anti-aliassing filter covering the sensor, or so I've read. So some sharpening is required just to recover the image to it's natural sharpness. This is normally referred to as capture sharpening and is not to be confused with any subsequent sharpening in post processing. Canon have offered suggestions on what amount is required in the past.


Richard

http://rcb4344.zenfoli​o.com (external link)

  
  LOG IN TO REPLY
René ­ Damkot
Cream of the Crop
Avatar
39,856 posts
Likes: 6
Joined Feb 2005
Location: enschede, netherlands
     
Aug 21, 2009 09:50 |  #4

The thumbnails won't change much, the image will.
Not important IMO, since you judge sharpening at 100%. Otherwise resizing for screen will cause inaccurate previewing anyway.

DPP uses what you set in camera as default. I generally find that a setting of "3" in the Raw tab is enough. "500" in the RGB tab makes my eyes bleed.

Two screenshots, not color managed, so the color is off.

Sharpening off:

IMAGE: http://img.skitch.com/20090821-dkru4rfbp74cf1ddwnj8x4x8xr.jpg

Way over sharpened:
IMAGE: http://img.skitch.com/20090821-gi1gq3ype189g3m7uhd6jd1mxf.jpg

"I think the idea of art kills creativity" - Douglas Adams
Why Color Management.
Color Problems? Click here.
MySpace (external link)
Get Colormanaged (external link)
Twitter (external link)
PERSONAL MESSAGING REGARDING SELLING OR BUYING ITEMS WITH MEMBERS WHO HAVE NO POSTS IN FORUMS AND/OR WHO YOU DO NOT KNOW FROM FORUMS IS HEREBY DECLARED STRICTLY STUPID AND YOU WILL GET BURNED.

  
  LOG IN TO REPLY
tzalman
Fatal attraction.
Avatar
13,411 posts
Likes: 171
Joined Apr 2005
Location: Gesher Haziv, Israel
     
Aug 21, 2009 10:08 |  #5

Lowner wrote in post #8498739 (external link)
As I understand it, the RAW thumbnails are in fact very low res Jpegs created in camera from the RAW data, and have camera preset preferences applied, with maybe an amount of sharpening applied by default, although I cannot confirm that. The full RAW file will have no sharpening applied, although if you choose to use one of DPP's presets, then various tweaks are applied automatically, including sharpening.

Actually, DPP uses the embedded jpg at first but as soon as you start pushing the sliders around it redraws the thumbnail just as it redraws the full-sized Edit or Edit Image window. However if you save your edits it will not save an edited thumbnail unless you select 'Add thumbnail to image and save' from the File menu.


Elie / אלי

  
  LOG IN TO REPLY
tigerotor77w
Goldmember
1,539 posts
Likes: 9
Joined Dec 2008
Location: Allgäu, BY, Germany
     
Aug 21, 2009 16:57 |  #6

René Damkot wrote in post #8498893 (external link)
DPP uses what you set in camera as default. I generally find that a setting of "3" in the Raw tab is enough. "500" in the RGB tab makes my eyes bleed.

Is there a difference in one slider over the other?


Photo blog (external link) | Gear
flickr (external link) being retired in favor of Wordpress.

  
  LOG IN TO REPLY
René ­ Damkot
Cream of the Crop
Avatar
39,856 posts
Likes: 6
Joined Feb 2005
Location: enschede, netherlands
     
Aug 21, 2009 17:16 |  #7

tigerotor77w wrote in post #8501000 (external link)
Is there a difference in one slider over the other?

The numbers ;) Also, the Raw tab is only available when you edit a CR2.
Effect is the same and additive. Not sure if amount is the same for both sliders if set to max.


"I think the idea of art kills creativity" - Douglas Adams
Why Color Management.
Color Problems? Click here.
MySpace (external link)
Get Colormanaged (external link)
Twitter (external link)
PERSONAL MESSAGING REGARDING SELLING OR BUYING ITEMS WITH MEMBERS WHO HAVE NO POSTS IN FORUMS AND/OR WHO YOU DO NOT KNOW FROM FORUMS IS HEREBY DECLARED STRICTLY STUPID AND YOU WILL GET BURNED.

  
  LOG IN TO REPLY
tigerotor77w
Goldmember
1,539 posts
Likes: 9
Joined Dec 2008
Location: Allgäu, BY, Germany
     
Aug 21, 2009 17:23 |  #8

René Damkot wrote in post #8501080 (external link)
The numbers ;) Also, the Raw tab is only available when you edit a CR2.
Effect is the same and additive. Not sure if amount is the same for both sliders if set to max.

Okay, that's what I had figured. I suppose that there's just a measure of redundancy for RAW files...


Photo blog (external link) | Gear
flickr (external link) being retired in favor of Wordpress.

  
  LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as a registered member)

1,912 views & 0 likes for this thread
In DPP RAW thumbnails appear sharp and JPG are soft. What is that about?
FORUMS Post Processing, Marketing & Presenting Photos RAW, Post Processing & Printing 
AAA
x 1600
y 1600

Jump to forum...   •  Rules   •  Index   •  New posts   •  RTAT   •  'Best of'   •  Gallery   •  Gear   •  Reviews   •  Member list   •  Polls   •  Image rules   •  Search   •  Password reset

Not a member yet?
Register to forums
Registered members may log in to forums and access all the features: full search, image upload, follow forums, own gear list and ratings, likes, more forums, private messaging, thread follow, notifications, own gallery, all settings, view hosted photos, own reviews, see more and do more... and all is free. Don't be a stranger - register now and start posting!


COOKIES DISCLAIMER: This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and to our privacy policy.
Privacy policy and cookie usage info.


POWERED BY AMASS forum software 2.1forum software
version 2.1 /
code and design
by Pekka Saarinen ©
for photography-on-the.net

Latest registered member is gunz46
793 guests, 256 members online
Simultaneous users record so far is 6430, that happened on Dec 03, 2017

Photography-on-the.net Digital Photography Forums is the website for photographers and all who love great photos, camera and post processing techniques, gear talk, discussion and sharing. Professionals, hobbyists, newbies and those who don't even own a camera -- all are welcome regardless of skill, favourite brand, gear, gender or age. Registering and usage is free.