burkphoto wrote:
If you ever saw Kodak DP2 software (an enormous Microsoft SQL database and rendering engine that cost $20,000 per processor core to license), you would be amazed. It’s like Lightroom taken to a much higher power.
The HR500 scanners output 12-bit images that stayed 12-bits until rendered out to a printer. That’s what preserved the latitude.
We used DP2, driven by a “Wheelman” device, to adjust BRGB (brightness plus red green and blue color channels). It was, at first, a console with four rotary wheels that mimicked the controls of Kodak’s old PVAC film analyzers.
We had nine scanners and nine Wheelman stations with precisely calibrated, matched monitors tuned to our master printer. What we saw on screen was an extremely accurate preview of what came off the printer.
As Digital Products Area Manager, I ran Film Scanning, Color Correction, Quality Control, CD-ROM production (for school yearbook portraits and school office information system database images), Portrait Package Printing (15 Noritsu mini-Labs), Large Format Printing (two wide-format Epsons), School ID Card Printing (16 Fargo, Eltron, and Pebble plastic card thermal printers), Grade K-5 Class Composite Production, Custom Composite Production (for senior classes, bands, fraternities, sororities, etc.), plus high volume greeting card production system design and maintenance, Digital Memorybook Pre-Press Prep Technical Support, and Plain Paper School Services system design and technical support (for ID Cards, Photo Labels, Rotary file Cards, and Portrait Proofs, made on Canon color copiers driven with high speed RIPs).
It kept me out of trouble... I had a staff of 70 and four or five supervisors reporting to me.
If you ever saw Kodak DP2 software (an enormous Mi... (
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I wish I could check out Kodak's DP2 software--it sounds great. I liked most of Kodak's technical products.
I absolutely agree on the importance of calibrated monitors. I use Spyder 2 device to calibrate my monitor.
Frankly, every photo processing software I've tried -- even the low-end ones--has been reasonably easy to use
and has worked. Just as cigarettes work: they are easy to light and smoke, and taste pretty good. The problem
is, you can't see what they are doing to your lungs. :-)
I't s not that PhotoShop and packages like it are broken or buggy--they aren't. It's that they take the image file
as raw material for creating something by "editing". But the image file isn't a draft of a document--
it's a image of an actual scene. The essence of a photograph (as opposed to, say, a painting or drawing)
is it's connection with its subject. It's an photographic image, not an artist's "impression".
On any LED/LCD monitor, it's impossible to see an image in the full resolution present in the image file.
Only is about half the stops of contrast are visible. So a change that wipes out a bunch of resolution or
contrastr will look *just fine* on the monitor.
The problem is that loss of information is cumulative. PhotoShop users run filter and filter after filer.
And the nice folks who make PhotoShop don't bother to label the filters with which ones lose information.
Knowing when you are losing information is
crucial to all information processing.
Even if the case where the technology of the final print doesn't offer as much resolution or contrast as the monitor
can see, one has to be careful. Because it's easy not to noice on the monitor something that will be glaringly
obvious in a large print. It's there on the screen, but it's very small.
Big screens are available, but are expensive and for seeing the image as a whole, require one to sit back a long
way from the monitor. So they are not popular.
So my complaint with these software packages is that they are effective, but not ncessarily safe for your image.
They don't prominently display a message "
Warning: this filter loses information" or "
Warning:
the Sharpen filter creates bogus sharpness".
The sharpen filter in particular has ruined thousands of images and given people the idea that
defocus, camera shake, or unsharp lenses can be "fixed" in processing. That's no more true
for digital than it was for film.
Sure, if a customer complained that his B&W photos had been unsharp, we could develop his next roll
in a high-acutance developer such as Windsich Extreme Compensating Developer or POTA, with
intermittant agitation, and rely on adjacency effects to make the negative (and any print made from it)
look sharper. But it came at a price: low contrast, loss of gradiation, and creation of sharp edges
were there weren't any in the subject! So we didn't do that. We helped the customer to figure
out why his photos were unsharp, so he could take sharp photos.
The "sharpen" digital filter makes the same deal with the devil: you give up gradiation in order to
get (bogus) sharpness. But even worse, it's usually easy to spot when it's been used! Most users
of packages like PhotoShop don't know this. They think it's like color correction: if the image
is too red, you make it less red and you've fixed the problem---if it's unsharp, you run sharpen.
The "fix it in PhotoSlop" mentatlity has hurt photography. Not only by degrading images, but by
building up a tolarance for degraded and unnatural looking images (e.g., super-saturated color).
What one used to see only on dime store postcards now shows up in magazines, gallery shows,
and formuls like UHH.
PhotoShop (and packages like it) are quality, well-construcdted software. They are just aren't
good at tracking image quality. They need to carry a Surgeon General's Warning: "Use of
this product may be dangerous to your image quality."
It would not be diffiuclt to provide warnings to users about information-lossy filters
and unnatural-looking filters. An even bettter approarch would be to track the loss
of information from a given image as a %-age.
But adding this to the software would require a total attitude change -- analogous to the change
from Pictorialism (e.g., scribbling on the negative) to Straight Photography. IMHO, that is
unlikely to happen until the public becomes totally discussed with fake or fake-looking
"PhotoShopped" images. That might not be too far in the future--people are getting
fed up.