Image resize in CS5 vs cell size in LR3 for large print quality

What is the benefit of image resizing(larger) with resampling in photoshop than creating a larger cell size and increasing the DPI in LR3 if the file is to be printed just out of LR3. Is there a significant improvement in image quality if this is done in CS5, if so then what about the need for fractal program. I am taking my images with a D3x and making prints up to 20x30 on Epson 7900?

Interoperation from LR is far superior to the basic in PS CS 4, whilst this may have improved in CS 5 I haven't tried it and wouldn't expect it to be any better than LR 3. The print module in LR can also make it all a lot easier to do than using PS. Some may still prefer Genuine Fractals (I have a copy), however I have felt no need for it since LR 2. Any resizing I require is done using LR

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How do you format the cell size of multiple cells at once in numbers?

select the cells you want to format by clicking at the top-left most cell, then shift click the bottom-right most cell.
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Pre-Size Your PPI for Best Print - Once Good Advice Still Good?

In another thread someone mentinoed pre-sizing image data to prepare it for best printing.
For a long time it's been "standard advice" to resize images so that the ppi is an even division of the printer's dpi, because some years ago occasionally one would run across printers that would produce poor results if you didn't - you might see jaggies in straight edges for example.
Thing is, computers have (not so) quietly been getting more powerful over time, and printer makers have been competing with one another to try to make their printers produce better results than the other guys. One way they've done this is by improving the quality of the algorithms in the printer drivers. Use of mega storage and high accuracy math, which was once taxing on older computer systems, is now standard practice.
So it's time to question the old rule of thumb.
Making a few assumptions about the many variables (what printer, what OS, what version of drivers, what application being used to print) , there seem to be several questions here:
1. Can the image resolution be too high, causing the printer driver to make bad decisions about what ink dots to lay down where on the paper?
2. Does it help or matter if the image PPI is an even division of the printer's DPI?
As I have done in the past, I set out to do some actual testing, to see if I can actually SEE anything to help answer these questions.
I created a sharp image to be printed at 3 x 2 inches: http://Noel.ProDigitalSoftware.com/ForumPosts/Ghirardelli.jpg
Then I printed it at 6 different resolutions (1000, 720, 567, 300, 200, and 100 ppi) by resampling the image, labeling it, printing from Photoshop CS5, and feeding the same sheet of HP Premium Plus photo paper through my older HP 932c inkjet printer 6 times. The printer was set to its highest quality settings, including 2400 x 1200 dpi mode. This was the result:
I then looked critically and as objectively as I could at the different images. Here are my observations:
Naked eye:
The four highest resolution images (1000, 720, 567, and 300 ppi) all seemed to have an equivalent high level of crisp detail.
I could not detect the inkjet dots. Smooth objects look smooth.
Jeweler's Loupe:
I could see significant reduction in the finest details in the 300 ppi print vs. the three higher resolution prints, and a slight reduction in the 567 ppi vs. 720.
At no resolution were any jaggies or evidence of aliasing visible.
The inkjet dot pattern was plainly visible, and it does differ between the different prints. But it was not possible to say whether one was "better".
Things seem to have a little more texture in the 1000 ppi print vs. the 720 and 567 ppi prints.
Macro Photo:
Lacking a high resolution scanner, I took photographs of the 6 different prints. Unfortunately, I didn't have the time to set up with my best lighting and lens combination, so I got some reflections off the glossy paper, and and at this resolution I can't really see the inkject dots in the photos. I want to repeat this when I can find more time to do it better. As I did these photos hand-held, I believe the variances between them could be slightly influencing the results. But I'm going to post them anyway, for you to see.
I could see ever so slightly more detail in the 720 ppi print vs. the 1000 ppi print, though from the size of the tiny dust/light reflections I think it may have just been the better focused. Note that this observation is not supported by direct observation through the jeweler's loupe, above.
The 1000 ppi and 567 ppi prints seems to have slightly more noise or texture than the 720 ppi print. Again, this might be issues introduced by the photography process, though I did note a possible increase in texture in the 1000 ppi print with the jeweler's loupe as well.
Beyond just the blurring, I could see some evidence that straight lines are not quite as straight in the lower resolutions (300 ppi and lower). This seemed more apparent than with the jeweler's loupe examination, and I wonder whether the Photoshop downsampling process could have introduced it.
Left to right, top to bottom: 1000, 720, 567, 300, 200, 100:
Conclusions:
Printing to my HP 932c inkject printer on Windows 7 x64
300 ppi is not sufficient to coax the best possible detail out of an inkjet printer. It appears a number in the vicinity of 720 or more is better, and this number could be much higher with modern very high resolution printers (mine's old).
Speed was no different in printing any of these - a modern computer can process a huge amount of data in the blink of an eye.
When a sufficiently high resolution image is printed (in this case 567 ppi or higher) I saw virtually no evidence that a particular ppi value is superior, for example an even division of the printer's dpi, though in hindsight I realize I should have prepared a 600 ppi image (duh). I will add a 600 ppi image before I re-photograph the results.
It's possible ever so slightly more texture becomes visible at 1000 ppi than 720 ppi, but it might be just noise.
Practically speaking, from looking critically at the results I could not see a reason to pre-size the image for a specific ppi value.
I encourage you to experiment and report your results with your particular combination of gear.
Your comments are welcome!
-Noel

Noel Carboni wrote:
Jeff Schewe wrote:
I would never suggest people actually downsample though...why waste the pixels?
Exactly. There was a statement in another recent thread that downsampling to be an even fraction of the print dpi was important to do.
It might have been a misapplied extension of the advice to upsample. It's not been all that long that we've had big enough high resolution data that even makes downsampling a possibility.
-Noel
I believe I was the one to make that statement, which was based on recommendations by an Epson Print expert at a seminar demoing printers. He showed to prints from the same file, one set at an even multiple of 720 and the other some random number. It was subtle but visible the difference. That was probably 5 years ago.
In the meantime, I have made extensive tests of prints on my Epson 3800 trying many combinations of single pass, hi speed, Super fine print (2880x1440) and down to the basic level.
Everything evened out at 720 dpi. At 360, which is where I output from ACR, I can make an 8x12 print with no resampling whatsoever. Upping that to 720 and pushing the printer hard (2880x1440, single pass on Canson Platine), I see a discernable difference in the smooth tonalities.
As I understood you from past conversations, you employ the maximum output size from ACR which in my case, would double the file size by upsampling, and if necessary, downsample from that. I am not comfortable doing that as a default operation, but perhaps Jeff S might step in here and clarify. After all, ACR does offer that option! But my file size now goes from ~70MP to 143 MP, cutting my storage capability by 1/2. It's not a trivial matter when two of us here can run 600 to 800 images in 1/2 day!

Simple question RE: Image Resizing in CS5

I have an action that resizes and adjusts levels in images.
I load up an image and i'll play the action.
The problem is, every time the image is resized , the window goes tiny. Like this
So each time I play the action and then want to continue editing the item, I have to drag the window back to regular size and zoom in half a dozen times. Is there a way to make the resize not make the item and the window tiny?
Thanks

The fit on screen will record in an action like so:
MTSTUNER

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Is it possible to display a dynamic size message in the fixed cell size??
For example..
We just want to show 2 rows and 10 characters in a row..
If the message is a010203
We need the result as
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Zhxiang

Hi Cj,
Thank you for your suggestion.
It only fulfilled my first requirement.
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Best regards,
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Thanks in advance for any constructive input.....

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Usually setting the width of the TextArea to 100% makes it occupy whatever space the Image does not occupy. Does that not work?
If this post answers your question or helps, please mark it as such.
Greg Lafrance - Flex 2 and 3 ACE certified
www.ChikaraDev.com
Flex / AIR Development, Training, and Support Services

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This question was posted in response to the following article: http://help.adobe.com/en_US/lightroom/using/WS2B066516-C3B2-457b-B8DA-84F0E64A066B.html

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Stephanie

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THANKS!

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Ways to implement image resizing using plug-ins?

Hi Photoshop developers,
I'm a developer with a few Photoshop filter and selection plug-ins under my belt, and I have a good understanding of the SDK and tools and suites it provides. My next project is an algorithm for enlarging/resampling images to different pixel dimensions. I'm wondering if anyone has any suggestions for or experience with the best combination of plug-in types to implement this.
Clearly, I can't just write it as a filter plug-in, since there is no way to change the image dimensions from within a filter.
I'd like the resized image to remain within Photoshop (as a new window or in the original one), so an export plug-in on its own is not sufficient.
Import plug-ins seem promising, since they allow the creation of a new document of the required size. However, as best I can tell from the Photoshop 6.0 SDK documentation, import plug-ins cannot access the image data from other open documents (or even the clipboard), nor do they provide any support for channel ports and the Channel Port suite.
My best idea at this stage is to create an export plug-in to provide the user interface and calculate the resized image, and then an import plug-in to import the resized image back into a new window. (I'm supposing a further automation plug-in would then be written to perform this export/import sequence.) The difficulty I see with this approach is how to communicate the resized image data between the two plug-ins. Since the resized image will potentially be very large, the ideal solution would be to store it in channels managed by the Channel Ports suite. However, I cannot see how the channel ports created in the export plug-in could be communicated to and used by an import plug-in. The alternative would be for the export plug-in to save the resized image to a temporary file on disk, however this seems unnecessary.
So, my questions, specifically, are:
a) Is it possible to create new channels using the Channel Ports suite (sPSChannelPorts->New()) in one plug-in, and have those channels persist to be used in another plug-in?
b) If so, how would the channel ports be communicated between the plug-ins?
c) Alternately, are there any alternative architectures available for implementing an image-resizing algorithm using the plug-in types that are available for Photoshop developers.
Any responses would be greatly appreciated; I know this is a low-traffic forum...
Thanks,
Matthew.

I would make an automation plug-in and a filter plug-in. 1) Run the automation which runs your filter to gather current image information 2) Create a temp file of the new document 3) Make a new document 4) Call the filter again to reload the temp data on disk <[email protected]> wrote in message news:[email protected]... > Hi Photoshop developers, > > I'm a developer with a few Photoshop filter and selection plug-ins under > my belt, and I have a good understanding of the SDK and tools and suites > it provides. My next project is an algorithm for enlarging/resampling > images to different pixel dimensions. I'm wondering if anyone has any > suggestions for or experience with the best combination of plug-in types > to implement this. > > Clearly, I can't just write it as a filter plug-in, since there is no way > to change the image dimensions from within a filter. > > I'd like the resized image to remain within Photoshop (as a new window or > in the original one), so an export plug-in on its own is not sufficient. > > Import plug-ins seem promising, since they allow the creation of a new > document of the required size. However, as best I can tell from the > Photoshop 6.0 SDK documentation, import plug-ins cannot access the image > data from other open documents (or even the clipboard), nor do they > provide any support for channel ports and the Channel Port suite. > > My best idea at this stage is to create an export plug-in to provide the > user interface and calculate the resized image, and then an import plug-in > to import the resized image back into a new window. (I'm supposing a > further automation plug-in would then be written to perform this > export/import sequence.) The difficulty I see with this approach is how to > communicate the resized image data between the two plug-ins. Since the > resized image will potentially be very large, the ideal solution would be > to store it in channels managed by the Channel Ports suite. However, I > cannot see how the channel ports created in the export plug-in could be > communicated to and used by an import plug-in. The alternative would be > for the export plug-in to save the resized image to a temporary file on > disk, however this seems unnecessary. > > So, my questions, specifically, are: > > a) Is it possible to create new channels using the Channel Ports suite > (sPSChannelPorts->New()) in one plug-in, and have those channels persist > to be used in another plug-in? > > b) If so, how would the channel ports be communicated between the > plug-ins? > > c) Alternately, are there any alternative architectures available for > implementing an image-resizing algorithm using the plug-in types that are > available for Photoshop developers. > > Any responses would be greatly appreciated; I know this is a low-traffic > forum... > > Thanks, > Matthew.

Image resize in CS5 vs cell size in LR3 for large print quality

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