I have a 12MP Drebel/ Not 6 MP for suckers

lm31 said:

Your high end JPEG opens to around 11x17 @ 180 dpi by default.
Nice. But you can double the print size will little loss in image
quality if you do the following 2 photoshop edits and end up with a
22x34 print @ 180 dpi:

A. Interpolate your images by going into image size and changing
the document size to 110% (instead of say, inches) and check the
resample image on bottom of the window. Do this a number of times
until you have a the larger image size.

B. Use the unsharp mask in lab colors to sharpen the image for
critical sharpness.

1. Change the RGB to Lab Color under the Image-Mode on the menu.
Your channels will change to Lightness, A + B.
2. Select the lightness and do your unsharp mask edits with that
channel selected.
3. A good all around setting for your unsharp mask is Amount:
85-125%, Radius to 1.5 pixels, threshold to 4 levels. Experiment
with this, you may have different tastes.
4. Convert back to RGB and save. Voila! You now have a huge poster
sized print that looks great and unpixelated, sharp or sharper than
your original file.
5. Once you have a standard setting that works, record it as an
action so you can do a whole mess of them without the hassle of
tedious edits and save your time for having fun shooting.

I just saved you the expense of buying a 12 MP camera! Try it, it
works! Don't get all anal on me about this, ok, so it works to
different degrees, what the heck, it's free...
--
Pixelitus Maximus

Click to expand...

David Goldwasser said:

I bought Genuine Fractals when I had some large posters to print
(10' panos). I've been really happy with it and its a nice work
flow.

http://www.genuinefractals.com/

OK, I know this is expensive for Pro version, but so is printing
very large posters.

Also wondering with multi-step increase if there is something to be
gained by changing to 16bit for the process.

dfg

--
David Goldwasser
http://www.inertia-llc.com

Click to expand...

lm31 said:

Your high end JPEG opens to around 11x17 @ 180 dpi by default.
Nice. But you can double the print size will little loss in image
quality if you do the following 2 photoshop edits and end up with a
22x34 print @ 180 dpi:

A. Interpolate your images by going into image size and changing
the document size to 110% (instead of say, inches) and check the
resample image on bottom of the window. Do this a number of times
until you have a the larger image size.

B. Use the unsharp mask in lab colors to sharpen the image for
critical sharpness.

1. Change the RGB to Lab Color under the Image-Mode on the menu.
Your channels will change to Lightness, A + B.
2. Select the lightness and do your unsharp mask edits with that
channel selected.
3. A good all around setting for your unsharp mask is Amount:
85-125%, Radius to 1.5 pixels, threshold to 4 levels. Experiment
with this, you may have different tastes.
4. Convert back to RGB and save. Voila! You now have a huge poster
sized print that looks great and unpixelated, sharp or sharper than
your original file.
5. Once you have a standard setting that works, record it as an
action so you can do a whole mess of them without the hassle of
tedious edits and save your time for having fun shooting.

I just saved you the expense of buying a 12 MP camera! Try it, it
works! Don't get all anal on me about this, ok, so it works to
different degrees, what the heck, it's free...
--
Pixelitus Maximus

Click to expand...

lm31 said:

Your high end JPEG opens to around 11x17 @ 180 dpi by default.
Nice. But you can double the print size will little loss in image
quality if you do the following 2 photoshop edits and end up with a
22x34 print @ 180 dpi:

A. Interpolate your images by going into image size and changing
the document size to 110% (instead of say, inches) and check the
resample image on bottom of the window. Do this a number of times
until you have a the larger image size.

B. Use the unsharp mask in lab colors to sharpen the image for
critical sharpness.

1. Change the RGB to Lab Color under the Image-Mode on the menu.
Your channels will change to Lightness, A + B.
2. Select the lightness and do your unsharp mask edits with that
channel selected.
3. A good all around setting for your unsharp mask is Amount:
85-125%, Radius to 1.5 pixels, threshold to 4 levels. Experiment
with this, you may have different tastes.
4. Convert back to RGB and save. Voila! You now have a huge poster
sized print that looks great and unpixelated, sharp or sharper than
your original file.
5. Once you have a standard setting that works, record it as an
action so you can do a whole mess of them without the hassle of
tedious edits and save your time for having fun shooting.

I just saved you the expense of buying a 12 MP camera! Try it, it
works! Don't get all anal on me about this, ok, so it works to
different degrees, what the heck, it's free...
--
Pixelitus Maximus

Click to expand...

Petteri Sulonen said:

lm31 wrote:

[snip]

Download IrfanView, QImage, or some other utility that implements
resampling with the Lanczos algorithm. You'll get better results
than with bicubic stair interpolation (what you're discussing) and
despite the computation-heavy algorithm, one pass of Lanczos will
be faster than several passes of bicubic.

I've tried this, and the results are subtly but noticeably less
"blobby" than with stair interpolation.

Petteri
--



Portfolio: [ http://www.seittipaja.fi/index/ ]
Pontification: [ http://www.seittipaja.fi/ ]

Click to expand...

therealting said:

Daniella said:

can you make the action available for download?

Click to expand...

--

I can't seem to get them working in PS Elements, although actions
appear in XP with an Elements icon. Is this a 300D-style
defeaturing?

Thanks.

--
Johann
http://www.therealting.com/photos

Click to expand...

Norman L. Allen said:

David Goldwasser said:

I bought Genuine Fractals when I had some large posters to print
(10' panos). I've been really happy with it and its a nice work
flow.

http://www.genuinefractals.com/

OK, I know this is expensive for Pro version, but so is printing
very large posters.

Also wondering with multi-step increase if there is something to be
gained by changing to 16bit for the process.

dfg

--
David Goldwasser
http://www.inertia-llc.com

Click to expand...

Click to expand...

lm31 said:

Your high end JPEG opens to around 11x17 @ 180 dpi by default.
Nice. But you can double the print size will little loss in image
quality if you do the following 2 photoshop edits and end up with a
22x34 print @ 180 dpi:

A. Interpolate your images by going into image size and changing
the document size to 110% (instead of say, inches) and check the
resample image on bottom of the window. Do this a number of times
until you have a the larger image size.

B. Use the unsharp mask in lab colors to sharpen the image for
critical sharpness.

1. Change the RGB to Lab Color under the Image-Mode on the menu.
Your channels will change to Lightness, A + B.
2. Select the lightness and do your unsharp mask edits with that
channel selected.
3. A good all around setting for your unsharp mask is Amount:
85-125%, Radius to 1.5 pixels, threshold to 4 levels. Experiment
with this, you may have different tastes.
4. Convert back to RGB and save. Voila! You now have a huge poster
sized print that looks great and unpixelated, sharp or sharper than
your original file.
5. Once you have a standard setting that works, record it as an
action so you can do a whole mess of them without the hassle of
tedious edits and save your time for having fun shooting.

I just saved you the expense of buying a 12 MP camera! Try it, it
works! Don't get all anal on me about this, ok, so it works to
different degrees, what the heck, it's free...
--
Pixelitus Maximus

Click to expand...

auroraproject said:

I use FotoSlate for printing and it gives me 3 options, Bicubic,
Lanczos, or ClearIQZ. I've not tried ClearIQZ yet, any thoughts on
it?

Click to expand...

doogie2304 said:

it's "naughtius" maximus!

now write it out 1000 times before sunrise or i'll cut your balls off!

Cloud said:

lm31 said:

--
Pixelitus Maximus

Click to expand...

Nice, you remind me emperor's best friend - Notorius Maximus, from
the Monty Python's movie "Life of Brian" ))

--
Cloud
Gallery: http://fotopruvodce.cz/fotogalerie/autori.phtml?autor=Cloud
word 'starsi' on the bottom of the page means 'next page'

Click to expand...

Click to expand...

Igor R. said:

Don't waist your time in Photoshop, just upsample the image in
IrfanView of ACDSee with the B-Spline algorythm.
http://www.irfanview.com

Click to expand...

kolewis said:

--
Your eyes can capture the soul, the camera just an image.

Click to expand...