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Old 01-04-2017, 12:17   #1 (permalink)
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What program image resizing ?

I am very confused in the different methods of resizing images, I mostly use Photoshop and all of the images I reduce in size, but with the different filters available when resizing I don't know which is the best for me.
I have also used FastStone image viewer, which has even more options available.

What method do you use?


Please see screen shot below of FastStone image resizer.



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Old 01-04-2017, 12:19   #2 (permalink)
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Re: What program image resizing ?

Sorry posted twice but could not remove.


I am very confused in the different methods of resizing images, I mostly use Photoshop and all of the images I reduce in size, but with the different filters available when resizing I don't know which is the best for me.
I have also used FastStone image viewer, which has even more options available.

What method do you use?


Please see screen shot below of FastStone image resizer.





Last edited by oxo; 01-04-2017 at 12:25.
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Old 01-04-2017, 13:11   #3 (permalink)
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Re: What program image resizing ?

Hi Oxo

This is an interesting point. For years I've been using PS for resizing and usually pick the 'best for reducing/sharper' option as I'm downsizing. But recently a PS/LR guru Ken Payne said at our camera club that he uses the smoother option, in PS labelled 'best for enlargements'.

So I've tried this and in all honesty, i've not really noticed any difference. This might well be due to my old eyes though.

Why not try both methods on the same image and see if you can spot any difference? The results might well be influenced by the content of the image. A picture of (say) a garden might well react differently to a picture of a building or something mechanical with sharper lines/content.

Let us know how you get on.
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Old 01-04-2017, 14:23   #4 (permalink)
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Re: What program image resizing ?

Oxo, To downsize an image to post here in CS6 I go to Save for web > change the pixel size to 1024 or 800 on the long side JPEG high about 60. CS changes it to srgb. and save in a folder I call "For e-mail" that way I can put it straight into Pixalo.
To make larger image size say A3+ I go to "Image size " . > Change the size say 16" long side and make sure the pixels per inch are changed to 300 by ticking the resample box. If reads say 150 PPI. increase by about 10% each time click OK and repeat until you get to 300 ppi. Keep setting bicubic smother best for enlargements. I have just done an 16"x12" take a long time ago on a Fuji 6900 camera which was only 3mp and the camera made it up to 6mp. I will be posting here soon. By increasing the ppi a little at a time gives a smoother better result than one large jump. Hope this helps.
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Old 01-04-2017, 14:26   #5 (permalink)
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Re: What program image resizing ?

Hi Graham.

I was using Photoshop's Bicubic sharper ( reduction) but have recently changed to Bicubic (smooth gradients) and find it makes a more pleasing image, but like yourself, I tried the Bicubic smoother (enlargements) but could not see any difference.

It will be interesting to see what method other member's use.


But looking at the reduction facility in FastStone in my first posting, there are many more options available there, and I would love to know what their purpose is.
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Old 01-04-2017, 14:37   #6 (permalink)
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Re: What program image resizing ?

Quote:
Originally Posted by colinmac View Post
Oxo, To downsize an image to post here in CS6 I go to Save for web > change the pixel size to 1024 or 800 on the long side JPEG high about 60. CS changes it to srgb. and save in a folder I call "For e-mail" that way I can put it straight into Pixalo.
To make larger image size say A3+ I go to "Image size " . > Change the size say 16" long side and make sure the pixels per inch are changed to 300 by ticking the resample box. If reads say 150 PPI. increase by about 10% each time click OK and repeat until you get to 300 ppi. Keep setting bicubic smother best for enlargements. I have just done an 16"x12" take a long time ago on a Fuji 6900 camera which was only 3mp and the camera made it up to 6mp. I will be posting here soon. By increasing the ppi a little at a time gives a smoother better result than one large jump. Hope this helps.
Colin.

Many thanks, Colin, that's a very interest post and I will certainly give it a try, my main concern is when I downsize an image, is the massive reduction in image quality you get, so I am looking to see if there are any better methods to the ones I am using now, thank again.
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Old 01-04-2017, 15:21   #7 (permalink)
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Re: What program image resizing ?

Oxo, Have a study at my Malta fisherman and that is exactly it is the way it was done.
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Old 01-04-2017, 15:43   #8 (permalink)
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Re: What program image resizing ?

Quote:
Originally Posted by oxo View Post
But looking at the reduction facility in FastStone in my first posting, there are many more options available there, and I would love to know what their purpose is.
Google is your friend.
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Old 01-04-2017, 17:50   #9 (permalink)
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Re: What program image resizing ?

Quote:
Originally Posted by dabhand16 View Post
Google is your friend.
Thanks, Graham, I will do that.
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Old 01-04-2017, 18:13   #10 (permalink)
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Re: What program image resizing ?

Quote:
Originally Posted by colinmac View Post
Oxo, Have a study at my Malta fisherman and that is exactly it is the way it was done.
Colin.


Hi Colin, I have just been looking at some old posts on Pixalo and came across this that was posted some time ago and thought that you may be interested.


http://www.pixalo.com/community/phot...oach-3621.html
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Old 03-04-2017, 05:30   #11 (permalink)
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Re: What program image resizing ?

I manage all of my images in Lightroom and thus export everything from Lightroom. sharpen for screen.. For pixalo I have a preset that I just click on..
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Old 03-04-2017, 09:54   #12 (permalink)
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Re: What program image resizing ?

Thanks for the information Lcraft.
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Old 10-04-2017, 08:56   #13 (permalink)
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Re: What program image resizing ?

For reducing for web I use Lightroom Export but for increasing (and occasionally reducing) I have a couple of actions set up in Photoshop for 10% increments. To enlarge I just click on the action repeatively until the required size is reached.
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Old 10-04-2017, 09:46   #14 (permalink)
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Re: What program image resizing ?

Many thanks for the information Fangman, I shall have to look into this action mode, I must admit when I started this thread I was hoping there was a program out there that reduced or enlarged a file with a less reduction of image quality compared to the program I am using at the moment, but I now realise that it does not exist!
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