What is the best way of blowing a D2H pic in PS

Greg Dearing · Apr 18, 2004

Iliah Borg said:
Lanczos kernel is great, but not for each and every file. That is
one of the reasons for providing choices, apart from the speed of
algorithm.

True. Irfanview actually supports Lanczos, B-Spline, Bell, Mitchell, Triangle and Hermite interpolation.

All algorithms vary in appropriateness for a given image and speed, but I only mentioned Lanczos because it was the one referenced by the original poster and, imho, the best resampling algorithrm offered by either package.

Qimage and Irfanview are both nice pieces of software, but a lot of people would rather spend their $50 somewhere else than on an upsizing package.

-Greg

Dennis D · Apr 18, 2004

Does Irfanview have Lanczos pyramid, micro detail interpolation like Qimage (it's a stair stepping method using Lanczos instead of Bicubic)?

Greg Dearing said:
Iliah Borg said:

Lanczos kernel is great, but not for each and every file. That is
one of the reasons for providing choices, apart from the speed of
algorithm.

Click to expand...

True. Irfanview actually supports Lanczos, B-Spline, Bell,
Mitchell, Triangle and Hermite interpolation.

All algorithms vary in appropriateness for a given image and speed,
but I only mentioned Lanczos because it was the one referenced by
the original poster and, imho, the best resampling algorithrm
offered by either package.

Qimage and Irfanview are both nice pieces of software, but a lot of
people would rather spend their $50 somewhere else than on an
upsizing package.

-Greg

nenad212662 · Apr 18, 2004

That's what I thought: 10% increase of the original, as usual.

Thanks!

DoF said:
nejic said:

Yves P. said:

I was looking for something funkier ...

phototech said:

Yves P. said:

By blowing, I obviously mean interpolate to get a larger file to
eventually print a 20X30 picture out of it.

Step by step please, how do you guys do it ...

--
Yves P.
PBASE Supporter

Some pictures I like:
http://www.pbase.com/yp8/root

Click to expand...

--
Phototech
Martin B.

Click to expand...

--
Yves P.
PBASE Supporter

Some pictures I like:
http://www.pbase.com/yp8/root

Click to expand...

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jmcfadden · Apr 18, 2004

Yves

I have this camera there are really 2 choices IMO, I tried doing it in NC4 and CS using Bicubic Smoother , the CS render was way more detailed , and it is a great way to accomplish this task , the other application is PhotoZoom

look here

http://www.interpolatethis.com

J

Yves P. · Apr 18, 2004

Open the image with final crop in TIFF

To to Image/Image size and select "percent" and step it up 110% a few times !!! Keeping the BiCubic as a choice. What is Smoother ? I use PS7.0.1

jmcfadden said:
Yves

I have this camera there are really 2 choices IMO, I tried doing it
in NC4 and CS using Bicubic Smoother , the CS render was way more
detailed , and it is a great way to accomplish this task , the
other application is PhotoZoom

look here

http://www.interpolatethis.com

J

--
Yves P.
PBASE Supporter

Some pictures I like:
http://www.pbase.com/yp8/root

Greg Dearing · Apr 18, 2004

Dennis D said:
Does Irfanview have Lanczos pyramid, micro detail interpolation
like Qimage (it's a stair stepping method using Lanczos instead of
Bicubic)?

I'm not familiar with Lanczos pyramid. It does support Pyramid, if that's what you're referring to.

It doesn't support Lanczos 'stepping', though I would think you could do that manually.

-Greg

win39 · Apr 18, 2004

Yves P. said:
By blowing, I obviously mean interpolate to get a larger file to
eventually print a 20X30 picture out of it.

Step by step please, how do you guys do it ...

Take a look at this review. Reichmann, long a supporter of Genuine Fractals, tries and demonstrates several methods and a single bicubic resize in Photoshop works as well as anything.

http://www.luminous-landscape.com/reviews/software/smartscale.shtml

Greyflash · Apr 18, 2004

Hi Yves,

From Ron Rezniks e-book, he says the following: "To Upsample using the stepped methog using Photoshop CS's new algorithms, menu select Image; Image Size, make sure Resample Image is checked, and set the unites to percent. Set either dimension to 110%, select the algorithm you prefer for this image (e.g. Bicubic Smoother or Bicubic Sharper), and hit OK. Repeat as often as necessary to achieve the size required."

I hope this will help,

Gordon

Yves P. · Apr 18, 2004

The PS 7.0 doesn't have smoother Bi-Cubic. I need to upgrade

Greyflash said:
Hi Yves,

From Ron Rezniks e-book, he says the following: "To Upsample using
the stepped methog using Photoshop CS's new algorithms, menu select
Image; Image Size, make sure Resample Image is checked, and set the
unites to percent. Set either dimension to 110%, select the
algorithm you prefer for this image (e.g. Bicubic Smoother or
Bicubic Sharper), and hit OK. Repeat as often as necessary to
achieve the size required."

I hope this will help,

Gordon

--
Yves P.
PBASE Supporter

Some pictures I like:
http://www.pbase.com/yp8/root

Yves P. · Apr 18, 2004

Yves P. said:
By blowing, I obviously mean interpolate to get a larger file to
eventually print a 20X30 picture out of it.

Step by step please, how do you guys do it ...

--
Yves P.
PBASE Supporter

Some pictures I like:
http://www.pbase.com/yp8/root

--
Yves P.
PBASE Supporter

Some pictures I like:
http://www.pbase.com/yp8/root

jmcfadden · Apr 18, 2004

Yves P. said:
Open the image with final crop in TIFF

To to Image/Image size and select "percent" and step it up 110% a
few times !!! Keeping the BiCubic as a choice. What is Smoother ?
I use PS7.0.1

Sorry Yves

get CS my friend and forget about the 110% stupidity LOL, a throwback to when algorhtims were not as sophisticated as they are now , in CS there are options in the image size dialog area , bicubic smoother for Uprezzing and bicubic sharper for downsampling images ,

CS is the must have upgrade , the shadow highlite tool is much superior to DEE in NC4 , I use NC for all my conversions and CS for final editing

J

Dennis D · Apr 18, 2004

...is that it will increase the noise levels over the one-shot method.

Yves P. said:
Yves P. said:

By blowing, I obviously mean interpolate to get a larger file to
eventually print a 20X30 picture out of it.

Step by step please, how do you guys do it ...

--
Yves P.
PBASE Supporter

Some pictures I like:
http://www.pbase.com/yp8/root

Click to expand...

--
Yves P.
PBASE Supporter

Some pictures I like:
http://www.pbase.com/yp8/root

jmcfadden · Apr 18, 2004

Greyflash said:
Hi Yves,

From Ron Rezniks e-book, he says the following: "To Upsample using
the stepped methog using Photoshop CS's new algorithms, menu select
Image; Image Size, make sure Resample Image is checked, and set the
unites to percent. Set either dimension to 110%, select the
algorithm you prefer for this image (e.g. Bicubic Smoother or
Bicubic Sharper), and hit OK. Repeat as often as necessary to
achieve the size required."

I hope this will help,

Gordon

Gordon

Reznik is just Wrong here , this is a debunked "myth" and one day I hope it is finally laid to rest LOL

1 step Bi Cubic Smoother then sharpen and you are done

J

Kevin Forte · Apr 18, 2004

Iliah Borg · Apr 18, 2004

Dennis D said:
...is that it will increase the noise levels over the one-shot method.

You can try using L channel for staircase, and one-shot for a and b channels. It reduces chroma noise at least.

--
no text

kwphoto · Apr 18, 2004

A test in professional photographer magazine proved that one step is better than several small steps in ps (proved with images), not sure with other softawre products though.

Iliah Borg · Apr 18, 2004

jmcfadden said:
Yves P. said:

Open the image with final crop in TIFF

To to Image/Image size and select "percent" and step it up 110% a
few times !!! Keeping the BiCubic as a choice. What is Smoother ?
I use PS7.0.1

Click to expand...

Sorry Yves

get CS my friend and forget about the 110% stupidity LOL,a

and btw it is 114.1%, not 110

)
--
no text

sidamin · Apr 18, 2004

I was at a Nikon seminar two years ago and a couple of the hosts whose name I don't remember mentioned Genuine Fractals. This was pretty popular a few years ago but haven't heard mention of lately.

http://www.adobe.com/products/plugins/photoshop/genfrac.html

Sudeep

D.R. Barnhart said:
D.R.Barnhart

Joel Rosen · Apr 19, 2004

Qimage takes the guesswork out of interpolatiion. There are at 8 choices for interpolation! Your blow-ups are only limited by the capabilities of the printer but it will span several pages if you want. The program is quite easy to use for your final printing although the interface is a little quirky. It even has editing capabilities including D100 NEF files, but not D2H. Its sharpening algorithms are super for printing including a sharpness equalizer which is phenominal. Once you use the program, you will never print from photoshop again.

shudderbug2 said:
Best Regards,

David

Yves P. said:

By blowing, I obviously mean interpolate to get a larger file to
eventually print a 20X30 picture out of it.

Step by step please, how do you guys do it ...

--
Yves P.
PBASE Supporter

Some pictures I like:
http://www.pbase.com/yp8/root

Click to expand...

What is the best way of blowing a D2H pic in PS

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